Arcteq AQ F205 Instruction Manual Download Page 89

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5.2.4 Frequency tracking and scaling

Measurement sampling can be set to the frequency tracking mode or to the fixed user-

defined frequency sampling mode. The benefit of frequency tracking is that the measurements are

within a pre-defined accuracy range even when the fundamental frequency of the power system

changes.

Table. 5.2.4 - 43. Frequency tracking effect (FF changes from 6 Hz to 75 Hz).

The measurement error with a fixed 50 Hz sampling frequency

when the frequency changes. The constant current is 5 A, the

frequency sweep is from 6 Hz to 75 Hz.

The measurement error with frequency tracking when the

frequency changes. The constant current is 5 A, the

frequency sweep is from 6 Hz to 75 Hz.

As the figures above show, the sampling frequency has a major effect on the relay's measurement

accuracy. If the sampling is not tracked to the system frequency, for example a 10 Hz difference

between the measured and the set system frequency can give a measurement error of over 5 %. The

figures also show that when the frequency is tracked and the sampling is adjusted according to the

detected system frequency, the measurement accuracy has an approximate error of 0.1...- 0.2 % error

in the whole frequency range.

AQ -200 series devices have a measurement accuracy that is independent of the system frequency.

This has been achieved by adjusting the sample rate of the measurement channels according to the

measured system frequency; this way the FFT calculation always has a whole power cycle in the buffer.

The measurement accuracy is further improved by Arcteq's patented calibration algorithms

that calibrate the analog channels against eight (8) system frequency points for both magnitude and

angle. This frequency-dependent correction compensates the frequency dependencies in the used,

non-linear measurement hardware and improves the measurement accuracy significantly. Combined,

these two methods give an accurate measurement result that is independent of the system frequency.

Troubleshooting

When the measured current, voltage or frequency values differ from the expected values, the following

table offers possible solutions for the problems.

Problem

Check / Resolution

The measured current or

voltage amplitude is lower

than it should be./

The values are

"jumping" and are not

stable.

The set system frequency may be wrong. Please check that the frequency settings match the

local system frequency, or change the measurement mode to "Tracking" (

Measurement

→

Frequency

→

"Smpl mode") so the relay adjusts the frequency itself.

The frequency readings

are wrong.

In Tracking mode the relay may interpret the frequency incorrectly if no current is injected into the

CT (or voltage into the VT). Please check the frequency measurement settings (

Measurement

→

Frequency).

Q-F205

-F205

Instruction manual

Version: 2.04

Summary of Contents for AQ F205

Page 1: ...AQ F205 Feeder protection IED Instruction manual ...

Page 2: ......

Page 3: ... 3 4 Directional overcurrent protection Idir 67 109 5 3 5 Directional earth fault protection I0dir 67N 32N 117 5 3 6 Negative sequence overcurrent phase current reversal current unbalance protection I2 46 46R 46L 130 5 3 7 Harmonic overcurrent protection Ih 50H 51H 68H 135 5 3 8 Circuit breaker failure protection CBFP 50BF 52BF 142 5 3 9 Low impedance or high impedance restricted earth fault cable...

Page 4: ...phase three wire ARON input connection 372 7 4 Trip circuit supervision 95 373 8 Construction and installa 8 Construction and installation tion 378 378 8 1 Construction 378 8 2 CPU module 379 8 3 Current measurement module 381 8 4 Voltage measurement module 382 8 5 Digital input module optional 383 8 6 Digital output module optional 385 8 7 Dimensions and installation 386 9 T 9 Technic echnical da...

Page 5: ...d protection TF 49F 407 9 2 1 16 Overpower P 32O underpower P 32U and reverse power Pr 32R protection 408 9 2 1 17 Resistance temperature detectors 408 9 2 1 18 Voltage memory 409 9 2 2 Control functions 409 9 2 2 1 Setting group selection 409 9 2 2 2 Object control and monitoring 410 9 2 2 3 Auto reclosing 0 1 79 410 9 2 2 4 Cold load pick up CLPU 411 9 2 2 5 Switch on to fault SOTF 411 9 2 2 6 S...

Page 6: ...he warranty obligations of the manufacturer Arcteq Relays Ltd The manufacturer expressly disclaims any and all liability for any damages and or losses caused due to a failure to comply with the instructions contained herein or caused by persons who do not fulfil the aforementioned requirements Furthermore the manufacturer shall not be liable for possible errors in this document Please note that yo...

Page 8: ... IED type now has connection drawing application example drawing with function block diagram and application example with wiring Added General menu description Revision 2 01 Date 6 11 2019 Changes Added description for LED test and button test Complete rewrite of every chapter Improvements to many drawings and formula images Order codes revised Revision 2 02 Date 7 7 2020 Changes A number of image...

Page 9: ...nged disturbance recorder maximum digital channel amount from 32 to 95 Added residual current coarse and fine measurement data to disturbance recorder description Updated I01 and I02 rated current range Added inches to Dimensions and installation chapter Added raising frames wall mounting bracket combiflex frame to order code Added logical input and logical output function descriptions Additions t...

Page 10: ... trip circuit supervision Added power protection functions Added over and underfrequency protection description and technical data Revision 1 02 Date 16 9 2014 Changes Added df dt and synchrocheck function Revision 1 03 Date 20 1 2014 Changes Added system integration text SPA protocol Revision 1 04 Date 12 1 2016 Changes Added digital input operation description Revision 1 05 Date 30 5 2016 Change...

Page 11: ... description added Order code revised Non standard inverse time delay curves added Internal harmonic blocking parameter to I I0 Idir I0dir functions RTD mA card description improved Revision 1 09 Date 18 1 2019 Changes HMI Display technical data added A AQ Q F205 F205 Instruction manual Version 2 04 Arcteq Relays Ltd IM00013 9 ...

Page 12: ...nt transformer supervision DG Distributed generation DHCP Dynamic Host Configuration Protocol DI Digital input DO Digital output DOL Direct on line DR Disturbance recorder DT Definite time FF Fundamental frequency FFT Fast Fourier transform FTP File Transfer Protocol GI General interrogation HMI Human machine interface HR Holding register HV High voltage HW Hardware IDMT Inverse definite minimum t...

Page 13: ...MS Root mean square RSTP Rapid Spanning Tree Protocol RTD Resistance temperature detector RTU Remote terminal unit SCADA Supervisory control and data acquisition SG Setting group SOTF Switch on to fault SW Software THD Total harmonic distortion TRMS True root mean square VT Voltage transformer VTM Voltage transformer module VTS Voltage transformer supervision A AQ Q F205 F205 Instruction manual Ve...

Page 14: ...n relay For other AQ 200 series products please consult their respective device manuals AQ F205 is suitable for any application that requires directional overcurrent and earth fault protection as well as voltage and frequency protections AQ F205 comes with complimentary measurement monitoring control and communication features Its standard configuration of 11 digital inputs and 10 relay outputs al...

Page 15: ...Sixteen 16 freely configurable LEDs with programmable legend texts 3 Three 3 object control buttons Choose the controllable object with the Ctrl Ctrl button and control the breaker or other object with the I I and O O buttons 4 The L R L R button switches between the local and the remote control modes 5 Eight 8 buttons for IED local programming the four navigation arrows and the E Ent nter er butt...

Page 16: ...ent if you have changed the view with AQtivate s Carousel Designer tool Figure 4 2 1 2 Basic navigation general The Home Home button switches between the quick display carousel and the main display with the six 6 main configuration menus General Protection Control Communication Measurements and Monitoring Note that the available menus vary depending on the device type You can select one of the men...

Page 17: ...n configuration menus 4 3 General menu The General main menu is divided into two submenus the Device info tab presents the information of the device while the Function comments tab allows you to view all comments you have added to the functions Figure 4 3 4 General menu structure A AQ Q F205 F205 Instruction manual Version 2 04 Arcteq Relays Ltd IM00013 15 ...

Page 18: ...ticker located on the side of the unit Time synchronization source 0 Internal 1 External NTP 2 External Serial 3 IRIG B 0 Internal If an external clock time synchronization source is available the type is defined with this parameter In the internal mode there is no external Timesync source IRIG B requires a serial fiber communication option card Enable stage forcing 0 Disabled 1 Enabled 0 Disabled...

Page 19: ...et to 0 s this feature is not in use LED test 0 1 Activated 0 When activated all LEDs are lit up LEDs with multiple possible colors blink each color Reset latches 0 1 Reset 0 Resets the latched signals in the logic and the matrix When a reset command is given the parameter automatically returns back to Measurement recorder 0 Disabled 1 Enabled 0 Disabled Enables the measurement recorder tool furth...

Page 20: ...activation submenu as well as the submenus for all the various protection functions categorized under the following modules Arc protection Current Voltage Frequency Sequence and Supporting see the image below The available functions depend on the device type in use A AQ Q F205 F205 Instruction manual Version 2 04 18 Arcteq Relays Ltd IM00013 ...

Page 21: ... is disabled by default When you activate one of the stages its activated menu appears in the stage specific submenu For example the I overcurrent protection stage can be found in the Current module whereas the U undervoltage protection stage can be found in the Voltage module Figure 4 4 9 Submenus for Stage activation A AQ Q F205 F205 Instruction manual Version 2 04 Arcteq Relays Ltd IM00013 19 ...

Page 22: ...current stages through the Current module and selects the I stage for further inspection Figure 4 4 10 Accessing the submenu of an individual activated stage Each protection stage and supporting function has five sections in their stage submenus Info Settings Registers I O and Events Figure 4 4 11 Info The Info section offers many details concerning the function and its status A AQ Q F205 F205 Ins...

Page 23: ...gs displays the setting group that is currently in use and its settings other setting groups can be set in the Settings section While the function is activated and disabled in the Stage activation submenu you can disable the function through the Info section Function mode at the top of the section Figure 4 4 12 Settings The stage settings vary depending on which protection function they are a part...

Page 24: ... data There are twelve 12 registers and each of them includes data like the pre fault value the fault value the time stamp and the active group during the trigger Data included in the register depend on the protection function You can clear the the operation register by choosing Clear registers Clear General event register stores the event generated by the stage These general event registers canno...

Page 25: ... stage is blocked internally DI or another signal you can configure an output to indicate the stage that is blocked A connection to an output can be either latched x or non latched x Blocking input control allows you to block stages The blocking can be done by using any of the following digital inputs logical inputs or outputs the START TRIP or BLOCKED information of another protection stage objec...

Page 26: ...ory which can be accessed in the Events view in the user view section 4 5 Control menu Main menu The Control main menu includes submenus see the image above for enabling the various control functions and objects Controls enabled for enabling and controlling the setting groups Setting groups for configuring the objects Objects for setting the various control functions Control functions and for conf...

Page 27: ...nu see the section Objects below for more information Setting groups Figure 4 5 17 Setting groups submenu The Setting groups submenu displays all the information related to setting group changing such as the following A Activ ctive se e set tting gr ting group oup displays the current active setting group SG1 SG8 F For orce se ce set tting gr ting group change oup change this setting allows the ac...

Page 28: ...t history Setting group 1 SG1 has the highest priority while Setting group 8 SG8 has the lowest priority Setting groups can be controlled with pulses or with both pulses and static signals see the image below Figure 4 5 18 Example of setting group SG changing Objects Figure 4 5 19 Objects submenu Each activated object is visible in the Objects submenu By default all objects are disabled unless spe...

Page 29: ... A Additional sta dditional stat tus inf us informa ormation tion gives feedback from the object on whether the opening and closing are allowed or blocked whether the object is ready and whether the synchronization status is ok Use synchr Use synchrocheck ocheck and Use Ob Use Object r ject read eady y closing the object is forbidden when the sides are not synchronized or when the object is not re...

Page 30: ...gth defines the maximum length of Open and Close commands If the status has changed before the maximum pulse length has elapsed the pulse is cut short Contr Control t ol termina ermination timeout tion timeout If the status of the object does not change during the set time an Open Close request failed event is recorded After the set delay if the controlled object does not respond accordingly the p...

Page 31: ...s well as to user configurable LEDs A connection to an output can be either latched x or non latched x Object blocking is done in the Blocking input control subsection It can be done by any of the following digital inputs logical inputs or outputs object status information as well as stage starts trips or blocks Figure 4 5 22 Registers section A AQ Q F205 F205 Instruction manual Version 2 04 Arcte...

Page 32: ...d off You can activate the desired events by masking them x Please remember to save your maskings by confirming the changes with the check mark icon If you want to cancel the changes select the strike through circle to do so Only masked events are recorded to the event history which can be accessed in the Events view in the user view section Control functions Once a control function has been activ...

Page 33: ...tude between Peak to peak TRMS or RMS the default is RMS the available magnitudes depend on the function Sta Statistics tistics indicates the number of function starts trips and blocks can be cleared through Clear statistics Clear Mea Measur surements ements displays the measurements carried out by the function A Activ ctive se e set ttings tings displays the setting group that is currently in use...

Page 34: ...ed in the Registers section you can find both Operation event register and General event register Operation event register stores the function s specific operation data There are twelve 12 registers and each of them includes data like the pre fault value the fault value the time stamp and the active group during the trigger Data included in the register depend on the control function You can clear...

Page 35: ...ge is blocked internally by a digital input or another signal you can configure an output to indicate the stage that is blocked A connection to an output can be either latched x or non latched x Blocking input control allows you to block stages The blocking can be done by using any of the following digital inputs logical inputs or outputs the START TRIP or BLOCKED information of another protection...

Page 36: ... can be accessed in the Events view in the user view section Device I O Figure 4 5 30 Device I O submenu The Device I O submenu is divided into the following nine sections Digital inputs Digital outputs mA Outputs LED settings Device I O matrix Programmable control switch Programmable Mimic Indicator Logic signals and GOOSE matrix Please note that digital inputs logic outputs protection stage stat...

Page 37: ... value The activation time of an input is 5 10 ms The release time with DC is 5 10 ms while with AC it is less than 25 ms The first three digital inputs don t have activation and release threshold voltage settings as these have already been defined when the unit was ordered Digital input statuses can be checked from the corresponding subsection Digital input status The Digital input descriptions s...

Page 38: ...ection lists NO NOTE TE An NC signal goes to the default position NO if the relay loses the auxiliary voltage or if the system is fully reset However an NC signal does not open during voltage or during System full reset An NC output signal does not open during a Communication or Protection reset Figure 4 5 33 LED settings section The LED settings section allows you to modify the individual label t...

Page 39: ...l stays active until the triggering signal deactivates and the latched function is manually cleared You can clear latched signals by entering the mimic display and the pressing the Back Back button on the panel Figure 4 5 35 Programmable control switch section Programmable control switches PCSs are switches that can be used to control signals while in the mimic view These signals can be used in a ...

Page 40: ...SE input signal status bits the status of a bit is either 0 or 1 64 quality bits for GOOSE input signals the status of a bit is either 0 or 1 Logical input signals can be used when building a logic with the AQtivate setting tool The status of a logical input signal can be changed either from the mimic or through SCADA By default logical inputs use Hold mode in which the status changes from 0 to 1 ...

Page 41: ...th ON and OFF events and they can be masked on when necessary they are masked off by default NO NOTE TE Please refer to the System integration chapter for a more detailed description of the use of logical signals 4 6 Communication menu The Communication main menu includes four submenus Connections Protocols General IO and Realtime signals to Comm All devices can be configured through the Ethernet ...

Page 42: ...s of RS 485 port in the back panel of the unit Bitrate displays the bitrate of the RS 485 serial communication interface 9600 bps as standard although can be changed to 19 200 bps or 38 400 bps if an external device supports the faster speed Databits Parity and Stopbits these can be set according the connected external devices Protocol by default the device does not have any serial protocol activa...

Page 43: ...sly with the ethernet based communication protocols Modbus TCP Ethernet communication protocol Modbus RTU Serial communication protocol IEC103 Serial communication protocol IEC101 104 The standards IEC 60870 5 101 and IEC 60870 5 104 are closely related On the physical layer the IEC 101 protocol uses serial communication whereas the IEC 104 protocol uses Ethernet communication SPA Serial communica...

Page 44: ...s is defined in the Transformers submenu while the system nominal frequency is specified in the Frequency submenu Other submenus are mainly for monitoring purposes Transformers Figure 4 7 41 Transformers section Transformers menu is used for setting up the measurement settings of available current transformer modules or voltage transformer modules Some unit types have more than one CT or VT module...

Page 45: ... factors VT module Figure 4 7 43 VT module section Voltage transformer settings include voltage measurement mode selection voltage transformer nominal settings and voltage channel polarity switching Voltage transformer setting defines what kind of voltages are connected to the VT module card The voltages are three line to line voltages three line to neutral voltages two line to line voltages leavi...

Page 46: ...urements use the fixed sampling mode as the default and System nominal frequency should be set to the desired level When Sampling mode is set to Tracking the device uses the measured frequency value as the system nominal frequency There are three frequency reference channels f Ref1 fRef2 and fRef3 With these parameters it is possible to set up three voltage or current channels to be used for frequ...

Page 47: ...d Phase angle and they display the RMS TRMS and peak to peak values amplitude and power THD values as well as the angle of each measured component Sequence currents has also been further divided into the four above mentioned sections and it calculates the positive negative and neutral sequence currents Harmonics displays current harmonics up to the 31st harmonic for the three phase current IL1 IL2...

Page 48: ...it and secondary voltages as well as phase angles Sequence voltages displays the per unit primary and secondary voltages as well as phase angles and it calculates the positive negative and neutral sequence voltages System voltages displays primary voltage magnitudes and primary voltage angles Harmonics displays harmonics up to the 31st harmonic for all four voltages U1 U2 U3 U4 each component can ...

Page 49: ...by which the power and energy calculations are made In the settings you can also activate and then set the parameters for the Energy dose counter mode Power measurements displays all three phase powers as well as the powers of individual phases Energy measurements displays the three phase energy as well as the energies of the individual phases Impedance calculations Figure 4 7 48 Impedance calcula...

Page 50: ...primary and secondary of the positive sequence as well as its primary and secondary impedances and the impedance angle Phasors Figure 4 7 49 Phasors submenu The Phasors submenu holds the vector displays for voltages and currents as well as the various calculated components the IED may have e g power impedance Phasors are helpful when solving incorrect wiring issues 4 8 Monitoring menu The Monitori...

Page 51: ...e the section Monitor functions below for more information Monitor functions Figure 4 8 52 Monitor function view Configuring monitor functions is very similar to configuring protection and control stages They too have the five sections that display information Info set the parameters Settings show the inputs and outputs I O and present the events and registers Events and Registers A AQ Q F205 F205...

Page 52: ...er of recordings currently in the disturbance recorder s memory Recorder trigger shows which signals or other states has been selected to trigger the recording digital input logical input or output signals of a stage object position etc by default nothing triggers the recorder Recording length displays the length of a single recording and can be set between 0 1 1800 seconds Recording mode can be s...

Page 53: ...hout problems If you see something out of the ordinary in the Device diagnostics submenu and cannot reset it please contact the closest representative of the manufacturer or the manufacturer of the device itself 4 9 Configuring user levels and their passwords As a factory default no user level is locked with a password in an IED In order to activate the different user levels click the L Lock ock b...

Page 54: ...ord is being changed must be unlocked As mentioned above the access level of the different user levels is indicated by the number of stars The required access level to change a parameter is indicated with a star symbol if such is required As a general rule the access levels are divided as follows User Can view any menus and settings but cannot change any settings nor operate breakers or other equi...

Page 55: ...escriptions etc and can operate breakers and other equipment Super user Can change any setting and can operate breakers and other equipment NO NOTE TE Any user level with a password automatically locks itself after half an hour 30 minutes of inactivity A AQ Q F205 F205 Instruction manual Version 2 04 Arcteq Relays Ltd IM00013 53 ...

Page 56: ...nal earth fault protection DEF 4 I0dir I0dir I0dir I0dir 67N 32N Directional earth fault protection OV 4 U U U U 59 Overvoltage protection UV 4 U U U U 27 Undervoltage protection NOV 4 U0 U0 U0 U0 59N Neutral overvoltage protection FRQV 8 f f f f f f f f 81O 81U Overfrequency and underfrequency protection ROCOF 1 df dt 1 8 81R Rate of change of frequency CUB 4 I2 I2 I2 I2 46 46R 46L Negative seque...

Page 57: ...EC ANSI Description SGS Setting group selection OBJ Object control and monitoring 5 objects available CIN Indicator object monitoring 5 indicators available CLPU CLPU Cold load pick up SOTF SOTF Switch on to fault AR 0 1 79 Auto recloser SYN ΔV Δa Δf 25 Synchrocheck PCS Programmable control switch Table 5 1 6 Monitoring functions of AQ F205 Name IEC ANSI Description CTS Current transformer supervi...

Page 58: ...ent measurements to be able to get correct measurements Figure 5 2 1 55 Current measurement terminology P PRI RI The primary current i e the current which flows in the primary circuit and through the primary side of the current transformer SEC SEC The secondary current i e the current which the current transformer transforms according to its ratios This current is measured by the protection relay ...

Page 59: ...h easier and more straightforward In modern protection devices this scaling calculation is done internally after the current transformer s primary current secondary current and motor nominal current are set Normally the primary current ratings for phase current transformers are 10 A 12 5 A 15 A 20 A 25 A 30 A 40 A 50 A 60 A and 75 A as well as their decimal multiples while the secondary current ra...

Page 60: ...er unit scaling the option CT nom p u is selected for the Scale meas to In setting see the image below Figure 5 2 1 57 Setting the phase current transformer scalings to CT nominal Once the setting have been sent to the device relay calculates the scaling factors and displays them for the user The CT scaling factor P S describes the ratio between the primary current and the secondary current The pe...

Page 61: ... ratio between the nominal current and the CT scaling factor P S Residual I0 CT scaling Next we set the residual IO CT scalings according to how the phase current CTs and the ring core CT are connected to the module see the Connections image at the beginning of this chapter The phase current CTs are connected to the module via a Holmgren summing connection which requires the use of coarse residual...

Page 62: ...s them when the protected object s nominal current is the basis for the scaling Figure 5 2 1 61 Scalings display based on the CT nominal Figure 5 2 1 62 Scalings display based on the protected object s nominal current As the images above show the scaling selection does not affect how primary and secondary currents are displayed as actual values The only effect is that the per unit system in the re...

Page 63: ...condary circuit may generate dangerously high voltages A buzzing sound from the connector can indicate an open circuit Problem Solution The measured current amplitude in all phases does not match the injected current The scaling settings may be wrong check that the settings match with the connected current transformer Measurement Transformers Phase CT scaling Also check that the Scale meas to In i...

Page 64: ...surement Phasors and check the Phase current vectors diagram When all connections are correct the diagram symmetric feeding should look like this See the following tables for the most common problems with phase polarity and network rotation mixed phases The following image presents the most common problems with phase polarity Problems with phase polarity are easy to find because the vector diagram...

Page 65: ...problems can be difficult to find because the measurement result is always the same in the relay If two phases are mixed together the network rotation always follows the pattern IL1 IL3 IL2 and the measured negative sequence current is therefore always 1 00 in p u A AQ Q F205 F205 Instruction manual Version 2 04 Arcteq Relays Ltd IM00013 63 ...

Page 66: ...IL2 Polarity 0 1 Invert 0 The selection of the second current measurement channel s IL2 polarity direction The default setting is for the positive current to flow from connector 3 to connector 4 with the secondary currents starpoint pointing towards the line IL3 Polarity 0 1 Invert 0 The selection of the third current measurement channel s IL3 polarity direction The default setting is for the posi...

Page 67: ...flow from connector 9 to connector 10 CT scaling factor P S A relay feedback value the calculated scaling factor that is the ratio between the primary current and the secondary current Measurements The following measurements are available in the measured current channels Table 5 2 1 11 Per unit phase current measurements Name Unit Range Step Description Phase current ILx Pha curr ILx In 0 000 1250...

Page 68: ...up to 31st measurement in p u from the residual current channel I01 or I02 Peak to peak current I0x P P curr I0x In 0 00 500 00 0 01 The peak to peak current measurement in p u from the residual current channel I01 or I02 Table 5 2 1 16 Primary residual current measurements Name Unit Range Step Description Primary residual current I0x Pri Res curr I0x A 0 00 1000000 00 0 01 The primary RMS current...

Page 69: ... current Table 5 2 1 20 Primary sequence current measurements Name Unit Range Step Description Primary positive sequence current Pri Positivesequence curr A 0 00 1000000 00 0 01 The primary measurement from the calculated positive sequence current Primary negative sequence current Pri Negative sequence curr A 0 00 1000000 00 0 01 The primary measurement from the calculated negative sequence curren...

Page 70: ... values as primary current values or as secondary current values Maximum harmonics value Ixx maximum harmonic A 0 00 100000 00 0 01 Displays the maximum harmonics value of the selected current input ILx or I0x Fundamental frequency Ixx fundamental A 0 00 100000 00 0 01 Displays the current value of the fundamental frequency RMS from the selected current input ILx or I0x Ixx harmonics 2nd 31st harm...

Page 71: ...ctly from the system up to 400 V as well The rated primary and secondary voltages of the VT need to be set for the relay to know the primary and per unit values In modern protection devices this scaling calculation is done internally after the voltage transformer s primary and secondary voltages are set Normally the primary line to line voltage rating for VTs is 400 V 60 kV while the secondary vol...

Page 72: ...ase wiring is incorrect all polarities can be individually switched by 180 degrees in the relay If the protection is voltage based the supervised voltage can be based either on line to line voltages or on line to earth voltages This selection is defined in the Measured magnitude of each protection stage menu separately Protection Voltage protection stage menu INFO see the image below The number of...

Page 73: ...age menu Settings Fault loops are either line to line or line to neutral according to the Measured magnitude setting As a default the activation of any one voltage trips the voltage protection stage Figure 5 2 2 69 Selecting the operating mode There are several different ways to use all four voltage channels The voltage measurement modes are the following 3LN U4 three line to neutral voltages and ...

Page 74: ...e note that U0 can only be measured by using a single channel In the image below is an example of 2LL U0 SS that is two line to line measurements with the zero sequence voltage and voltage from side 2 for Synchrocheck Since U0 is available line to neutral voltages can be calculated Figure 5 2 2 71 2LL U0 SS settings and connections The image collection below presents the relay s behavior when nomi...

Page 75: ...oubleshooting When the measured voltage values differ from the expected voltage values the following table offers possible solutions for the problems Problem Check Resolution The measured voltage amplitude in all phases does not match the injected voltage The scaling settings or the voltage measurement mode may be wrong check that the settings match with the connected voltage transformer Measureme...

Page 76: ...de U0 or SS 0 Not Used 1 U0 2 SS 0 Not Used The voltage channel U4 can be used to measure zero sequence voltage U0 or the Synchrocheck voltage SS If neither is needed the default option Not Used should be active U0 U4 Measured from 0 Broken Delta 1 Neutral point 2 Open delta 0 Broken delta Defines how the secondary voltage is scaled to the primary Does not affect how protection operates it only af...

Page 77: ...ling factor for the primary voltage s per unit value VT scaling factor p u Sec A relay feedback value the scaling factor for the secondary voltage s per unit value U3 VT scaling factor P S U0 SS A relay feedback value the scaling factor that is the ratio between the U3 channel s primary and secondary voltages This setting is only valid if the 2LL U3 U4 mode is selected U3 scaling factor p u Pri A ...

Page 78: ... Un 0 00 500 0 0 01 The measurement in p u from the calculated negative sequence voltage Zero sequence voltage Zero seq Volt p u Un 0 00 500 0 0 01 The measurement in p u from the calculated zero sequence voltage Table 5 2 2 30 Primary sequence voltage measurements Name Unit Range Step Description Primary positive sequence voltage Pos seq Volt pri V 0 00 1000000 00 0 01 The primary measurement fro...

Page 79: ...this is kV System voltage magnitude UL23 System volt UL23 mag V 0 00 1000000 00 0 01 The primary RMS line to line UL23 voltage measured or calculated You can also select the row where the unit for this is kV System voltage magnitude UL31 System volt UL31 mag V 0 00 1000000 00 0 01 The primary RMS line to line UL31 voltage measured or calculated You can also select the row where the unit for this i...

Page 80: ...2 2 34 Primary system voltage angles Name Unit Range Step Description System voltage angle UL12 System volt UL12 ang deg 0 00 360 0 0 01 The primary line to line angle UL12 measured or calculated System voltage angle UL23 System volt UL23 ang deg 0 00 360 0 0 01 The primary line to line angle UL23 measured or calculated System voltage angle UL31 System volt UL31 ang deg 0 00 360 0 0 01 The primary...

Page 81: ...harmonics 2nd 31st harmonic V 0 00 100000 00 0 01 Displays the selected harmonic from the voltage input Ux 5 2 3 Power and energy calculation The relays that are equipped with both a voltage and a current measurement card can calculate power and can therefore have power based protection and monitoring functions the number of available functions depends of the relay type In addition to power calcul...

Page 82: ...rection The direction of active power can be indicated with the power factor Cos φ or Cosine phi which is calculated according the following formula The direction of reactive power is divided into four quadrants Reactive power may be inductive or capacitive on both forward and reverse directions Reactive power quadrant can be indicated with Tan φ tangent phi which is calculated according the follo...

Page 83: ...s φ and tan φ are calculated in the same way as in the line to neutral mode Troubleshooting Check the Troubleshooting section in chapters Current measurement and scaling and Voltage measurement and scaling for more information Most power and energy measurement problems are usually related to the same issues i e wiring errors wrong measurement modes faulty frequency settings etc Settings Table 5 2 ...

Page 84: ...tes what the power VA quadrant is at that moment Reset energy calculators Reset 3ph Energies 0 1 Reset 0 Resets the memory of the three phase energy calculators Goes automatically back to the state after the reset is finished Phase active energy measurement 0 Disabled 1 Enabled 0 Disabled Enables disables the active energy per phase measurement Phase reactive energy measurement 0 Disabled 1 Enable...

Page 85: ... cards are available Table 5 2 3 39 Three phase power calculations Name Unit Range Step Description 3PH Apparent power S kVA 1x106 1x106 0 01 The total three phase apparent power in kilo volt ampere 3PH Active power P kW 1x106 1x106 0 01 The total three phase active power in kilowatts 3PH Reactive power Q kVar 1x106 1x106 0 01 The total three phase reactive power in kilovars 3PH Apparent power S M...

Page 86: ...exported Imported Q while Export P kVarh or MVarh 999 999 995 904 00 999 999 995 904 00 0 01 Total amount of imported reactive energy while active energy is exported Reactive energy Q balance while export P kVarh or MVarh 999 999 995 904 00 999 999 995 904 00 0 01 The sum of imported and exported reactive capacitive energy while active power is exported Exported Q while Import P kVarh or MVarh 999...

Page 87: ...mported Imported Q while Import P Lx kVarh or MVarh 1x109 1x109 0 01 The imported reactive energy of the phase while active energy is imported Reactive energy Q balance while Import P Lx kVarh or MVarh 1x109 1x109 0 01 The sum of the phase s imported and exported reactive energy while active energy is imported Apparent Energy S while Export P Lx 1x109 1x109 0 01 The apparent energy of the phase wh...

Page 88: ...3PH Q H Q 0 01 Mvar L1 T L1 Tan an 1 00 L2 T L2 Tan an 0 83 L3 T L3 Tan an 0 11 3P 3PH T H Tan an 0 00 L1 Cos L1 Cos 0 71 L2 Cos L2 Cos 0 77 L3 Cos L3 Cos 0 99 3P 3PH Cos H Cos 0 87 Voltages line to line Currents UL12 100 00 V 30 00 IL1 2 5 A 0 00 UL23 100 00 V 90 00 IL2 2 5 A 120 00 IL3 2 5 A 120 00 Name Values 3PH S 20 00 MVA 3PH P 17 32 MW 3PH Q 0 00 Mvar 3PH Tan 0 00 3PH Cos 0 87 A AQ Q F205 F...

Page 89: ...een achieved by adjusting the sample rate of the measurement channels according to the measured system frequency this way the FFT calculation always has a whole power cycle in the buffer The measurement accuracy is further improved by Arcteq s patented calibration algorithms that calibrate the analog channels against eight 8 system frequency points for both magnitude and angle This frequency depen...

Page 90: ...y tracking quality 0 No trackable channels 1 Reference 1 trackable 2 Reference 2 trackable 3 References 1 2 trackable 4 Reference 3 trackable 5 Reference 1 3 trackable 6 References 2 3 trackable 7 All references trackable Defines the frequency tracker quality If the measured current or voltage amplitude is below the threshold the channel tracking quality is 0 and cannot be used for frequency track...

Page 91: ...t value used by protection functions When frequency is not measurable this value returns to value set to System nominal frequency parameter f atm Display 0 000 75 000Hz 0 001Hz Frequency measurement value used in display When frequency is not measurable this value is 0 Hz f measurement from 0 Not measurable 1 Avg Ref 1 2 Avg Ref 2 3 Avg Ref 3 4 Track Ref 1 5 Track Ref 2 6 Track Ref 3 7 Fast Ref 1 ...

Page 92: ...run in a completely digital environment with a protection CPU microprocessor which also processes the analog signals transformed into the digital form A AQ Q F205 F205 Instruction manual Version 2 04 90 Arcteq Relays Ltd IM00013 ...

Page 93: ...ntage value before the function takes action The function constantly calculates the ratio between the pick up parameter set by the user and the measured magnitude Xm The reset ratio of 97 is built into the function and is always relative to the Xset value If a function s pick up characteristics vary from this description they are defined in the function section in the manual Figure 5 3 1 78 Pick u...

Page 94: ...ction causes an HMI display event and a time stamped blocking event with information of the startup current values and its fault type to be issued The blocking signal can also be tested in the commissioning phase by a software switch signal when the relay s common and global testing mode is activated The variables users can set are binary signals from the system The blocking signal needs to reach ...

Page 95: ...for the time counter The selection is made between dependent IDMT and independent DT characteristics Definite min operating time delay 0 000 1800 000s 0 005s 0 040s When the Delay type parameter is set to DT this parameter acts as the expected operating time for the protection function When set to 0 s the stage operates instantaneously without any additional delay When the parameter is set to 0 00...

Page 96: ...ly the Param option allows the tuning of the constants A B and C which then allows the setting of characteristics following the same formula as the IEEE curves mentioned here This setting is active and visible when the Delay type parameter is set to IDMT and the Delay curve series parameter is set to IEEE Time dial setting k 0 01 25 00s 0 01s 0 05s Defines the time dial multiplier setting for IDMT...

Page 97: ...ges The setting parameters and their ranges are documented in the chapters of the respective function blocks Table 5 3 1 46 Inverse operating time formulas for nonstandard characteristics RI type RD type Used to get time grading with mechanical relays Mostly used in earth fault protection which grants selective tripping even in non directional protection t Operating delay s k Time dial setting Im ...

Page 98: ...n of the timer Op Time calculation reset after release time 0 No 1 Yes 1 Yes Operating timer resetting characteristics selection When active the operating time counter is reset after a set release time if the pick up element is not activated during this time When disabled the operating time counter is reset directly after the pick up element is reset Continue time calculation during release time 0...

Page 99: ...ick up release delay counter is reset at signal drop off Figure 5 3 1 84 Delayed pick up release delay counter value is held during the release time A AQ Q F205 F205 Instruction manual Version 2 04 Arcteq Relays Ltd IM00013 97 ...

Page 100: ...tion Normal Start Trip Blocked etc in the Info page of the function NO NOTE TE When Stage forcing is enabled protection functions will also change state through user input Injected currents voltages also affect the behavior of the relay Regardless it is recommended to disable Stage Forcing after testing has ended 5 3 2 Non directional overcurrent protection I 50 51 The non directional overcurrent ...

Page 101: ...ing The basic design of the protection function is the three pole operation The inputs for the function are the following operating mode selections setting parameters digital inputs and logic signals measured and pre processed current magnitudes The function outputs the START TRIP and BLOCKED signals which can be used for direct I O controlling and user logic programming The function generates gen...

Page 102: ...sible input channel variations the pre fault condition is presented with a 20 ms averaged history value from 20 ms from START or TRIP event General settings The following general settings define the general behavior of the function These settings are static i e it is not possible to change them by editing the setting group Table 5 3 2 49 General settings of the function Name Range Step Default Des...

Page 103: ...ing time 1800 000 1800 000s 0 005s Displays the expected operating time when a fault occurs When IDMT mode is used the expected operating time depends on the measured highest phase current value If the measured current changes during a fault the expected operating time changes accordingly Time remaining to trip 0 000 1800 000s 0 005s When the function has detected a fault and counts down time towa...

Page 104: ...operating delay has passed in order for the blocking to activate in time Operating time characteristics for trip and reset This function supports definite time delay DT and inverse definite minimum time delay IDMT For detailed information on these delay types please refer to the chapter General properties of a protection function and its section Operating time characteristics for trip and reset Ev...

Page 105: ... 21 NOC2 9 Phase B Start OFF 1354 21 NOC2 10 Phase C Start ON 1355 21 NOC2 11 Phase C Start OFF 1356 21 NOC2 12 Phase A Trip ON 1357 21 NOC2 13 Phase A Trip OFF 1358 21 NOC2 14 Phase B Trip ON 1359 21 NOC2 15 Phase B Trip OFF 1360 21 NOC2 16 Phase C Trip ON 1361 21 NOC2 17 Phase C Trip OFF 1408 22 NOC3 0 Start ON 1409 22 NOC3 1 Start OFF 1410 22 NOC3 2 Trip ON 1411 22 NOC3 3 Trip OFF 1412 22 NOC3 ...

Page 106: ...ip OFF 1486 23 NOC4 14 Phase B Trip ON 1487 23 NOC4 15 Phase B Trip OFF 1488 23 NOC4 16 Phase C Trip ON 1489 23 NOC4 17 Phase C Trip OFF The function registers its operation into the last twelve 12 time stamped registers this information is available for all provided instances separately The register of the function records the ON event process data for START TRIP or BLOCKED The table below presen...

Page 107: ...efinite time DT or for inverse definite minimum time IDMT the IDMT operation supports both IEC and ANSI standard time delays as well as custom parameters The function includes the checking of CT saturation which allows the function to start and operate accurately even during CT saturation The operational logic consists of the following input magnitude selection input magnitude processing saturatio...

Page 108: ...f sensitive residual current measurement input I02 5 ms I02TRMS TRMS measurement of coarse sensitive current measurement input I02 5 ms I02PP Peak to peak measurement of sensitive residual current measurement input I02 5 ms I0Calc RMS value of the calculated zero sequence current from the three phase currents 5 ms The selection of the used AI channel is made with a setting parameter In all possibl...

Page 109: ...ime information on the state of the protection function It is accessed either through the relay s HMI display or through the setting tool software when it is connected to the relay and its Live Edit mode is active Table 5 3 3 58 Information displayed by the function Name Range Step Description I0 condition 0 Normal 1 Start 2 Trip 3 Blocked Displays status of the protection function Detected I0 ang...

Page 110: ...ent and a time stamped blocking event with information of the startup current values and its fault type to be issued The blocking signal can also be tested in the commissioning phase by a software switch signal when the relay s testing mode Enable stage forcing is activated General Device The variables the user can set are binary signals from the system The blocking signal needs to reach the devic...

Page 111: ...me Event code Fault type Pre trigger current Fault current Pre fault current Trip time remaining Used SG dd mm yyyy hh mm ss mss 1664 1861 Descr A G R C G F Start trip 20 ms current Start Trip current Start 200ms current 0 ms 1800s Setting group 1 8 active 5 3 4 Directional overcurrent protection Idir 67 The directional overcurrent function is used for instant and time delayed overcurrent and shor...

Page 112: ...sing The basic design of the protection function is the three pole operation The inputs for the function are the following operating mode selections setting parameters digital inputs and logic signals measured and pre processed current magnitudes The function outputs the START TRIP and BLOCKED signals which can be used for direct I O controlling and user logic programming The function generates ge...

Page 113: ... current 5ms IL3RMS RMS measurement of phase L3 C current 5ms IL1TRMS TRMS measurement of phase L1 A current 5ms IL2TRMS TRMS measurement of phase L2 B current 5ms IL3TRMS TRMS measurement of phase L3 C current 5ms IL1PP Peak to peak measurement of phase L1 A current 5ms IL2PP Peak to peak measurement of phase L2 B current 5ms IL3PP Peak to peak measurement of phase L3 C current 5ms U1RMS RMS meas...

Page 114: ...based on a healthy line to line voltage During a short circuit the reference angle is based on impedance calculation If the voltage drops below 1 V in the secondary side the angle memory is used for 0 5 seconds The angle memory forces the reference angle to be equal to the value measured or calculated before the fault The angle memory captures the measured voltage angle 100 ms before the fault sta...

Page 115: ...amplitude of IL1 IL2 or IL3 increases above the pick up limit If the 3LL mode is used without the U0 measurement in a single phase fault situation the voltage reference comes from the healthy phase and the current reference from the faulty phase In a short circuit the angle comes from impedance calculation Figure 5 3 4 90 Operation sector area when the sector center has been set to 45 degrees A AQ...

Page 116: ...The positive sequence current angle in relation to the positive sequence voltage Expected operating time 0 000 1800 00s 0 005s Displays the expected operating time when a fault occurs When IDMT mode is used the expected operating time depends on the highest measured phase current value If the measured current changes during a fault the expected operating time changes accordingly Time remaining to ...

Page 117: ... its fault type to be issued The blocking signal can also be tested in the commissioning phase by a software switch signal when the relay s testing mode Enable stage forcing is activated General Device The variables the user can set are binary signals from the system The blocking signal needs to reach the device minimum of 5 ms before the set operating delay has passed in order for the blocking to...

Page 118: ... Measuring live angle ON 4873 76 DOC2 9 Measuring live angle OFF 4874 76 DOC2 10 Using voltmem ON 4875 76 DOC2 11 Using voltmem OFF 4928 77 DOC3 0 Start ON 4929 77 DOC3 1 Start OFF 4930 77 DOC3 2 Trip ON 4931 77 DOC3 3 Trip OFF 4932 77 DOC3 4 Block ON 4933 77 DOC3 5 Block OFF 4934 77 DOC3 6 No voltage Blocking ON 4935 77 DOC3 7 Voltage measurable Blocking OFF 4936 77 DOC3 8 Measuring live angle ON...

Page 119: ...cisions are based on selected neutral current and voltage magnitudes which the function constantly measures The available residual current magnitudes are RMS values TRMS values including harmonics up to 31st or peak to peak values that come from inputs I01 or I02 residual current measurement or from I0Calc residual current calculated from phase current measurements The current angle is compared to...

Page 120: ... events The following figure presents a simplified function block diagram of the directional earth fault function Figure 5 3 5 92 Simplified function block diagram of the I0dir function Measured input The function block uses analog current measurement values The user can select the monitored magnitude to be equal either to RMS values to TRMS values or to peak to peak values TRMS mode uses values f...

Page 121: ... settings of the function Name Description Range Step Default U0 directional phase If the connected neutral voltage polarity is opposite to the connected residual current this parameter can swap the angle reference 1 U0 2 U0 1 U0 U0 Meas input select Defines which available neutral voltage measurement is used Available neutral voltages depend on measurement settings Measurements Transformers VT mo...

Page 122: ...broad range mode 1 Not used 2 Used 1 Not used Unearthed Compensated border angle Dividing the angle between unearthed and compensated tripping see description later in this document Visible when earthing type is set to I0Cos I0Sin broad range mode 45 0 90 0 1 45 Angle Tripping area size earthed network 45 0 135 0 0 1 88 Angle offset Protection area direction earthed network 0 0 360 0 0 1 0 0 Angle...

Page 123: ...nd into a faulty feeder Healthy feeders do not trip since capacitive current is floating to the opposite direction and selective tripping can be ensured The amplitude of the fault current depends on the capacitance of the network The outgoing feeders are the sources for capacitive currents The bigger the network the greater the capacitive current during a fault Each outgoing feeder produces capaci...

Page 124: ...Petersen coil earthed Compensated network 32N There are many benefits to a Petersen coil earthed network The amount of automatic reclosing is highly decreased and the maintenance of the breakers is therefore diminished Arc faults die on their own and cables and equipment suffer less damage In emergency situations a line with an earth fault can be used for a specific time Figure 5 3 5 94 Angle trac...

Page 125: ...fully compensated The network is overcompensated when the K factor is greater than 1 0 and undercompensated when the K factor is smaller than 1 0 The inductance connected to the star point of an incoming transformer or as in most cases to a earthing transformer compensates the capacitance of the network however this prevents the capacitive fault current to be measured The fault detection is handle...

Page 126: ...ude of a single phase fault current is similar to the amplitude of a short circuit current Directly earthed or small impedance network schemes are normal in transmission distribution and industry The phase angle setting of the tripping area is adjustable as is the base direction of the area angle offset A AQ Q F205 F205 Instruction manual Version 2 04 124 Arcteq Relays Ltd IM00013 ...

Page 127: ...lts two modes are used depending on the network status unearthed or compensated When changing between these two statuses the setting group must be changed and especially with distributed compensation the change may be difficult or impossible to arrange Finally in a compensated network protection the relay with traditional algorithms may sporadically detect an earth fault in a long healthy feeder d...

Page 128: ...d when disabled To receive a more accurate indication as to whether the fault was in a compensated or an unearthed network the angle divider can divide the area which would otherwise be overlapped between the two network models By default the setting is 45 degrees When the divider is disabled the angle is set to zero degrees Read only parameters The relay s Info page displays useful real time info...

Page 129: ...nction blocking The block signal is checked in the beginning of each program cycle The blocking signal is received from the blocking matrix in the function s dedicated input Additionally the directional earth fault protection function includes an internal inrush harmonic blocking option which is applied according to the parameters set by the user If the blocking signal is not activated when the pi...

Page 130: ...rs four 4 independent stages the events are segregated for each stage operation The events triggered by the function are recorded with a time stamp and with process data values Table 5 3 5 74 Event codes Event number Event channel Event block name Event code Description 5184 81 DEF1 0 Start ON 5185 81 DEF1 1 Start OFF 5186 81 DEF1 2 Trip ON 5187 81 DEF1 3 Trip OFF 5188 81 DEF1 4 Block ON 5189 81 D...

Page 131: ...FF 5376 84 DEF4 0 Start ON 5377 84 DEF4 1 Start OFF 5378 84 DEF4 2 Trip ON 5379 84 DEF4 3 Trip OFF 5380 84 DEF4 4 Block ON 5381 84 DEF4 5 Block OFF 5382 84 DEF4 6 I0Cosfi Start ON 5383 84 DEF4 7 I0Cosfi Start OFF 5384 84 DEF4 8 I0Sinfi Start ON 5385 84 DEF4 9 I0Sinfi Start OFF 5386 84 DEF4 10 I0Cosfi Trip ON 5387 84 DEF4 11 I0Cosfi Trip OFF 5388 84 DEF4 12 I0Sinfi Trip ON 5389 84 DEF4 13 I0Sinfi T...

Page 132: ...onitors the negative sequence current while the I2 I1 mode monitors the ratio between the negative sequence current and the positive sequence current The relay calculates the symmetrical component magnitudes in use from the phase current inputs IL1 IL2 and IL3 The zero sequence current is also recorded into the registers as well as the angles of the positive negative and zero sequence currents in ...

Page 133: ... I2 function Measured input The function block uses analog current measurement values and always uses calculated positive and negative sequence currents In the broken conductor mode I2 I1 the function also uses the RMS values of all phase currents to check the minimum current Zero sequence and component sequence angles are used for fault registering and for fault analysis processing A 20 ms averag...

Page 134: ...d if the blocking condition is not active Read only parameters The relay s Info page displays useful real time information on the state of the protection function It is accessed either through the relay s HMI display or through the setting tool software when it is connected to the relay and its Live Edit mode is active Table 5 3 6 78 Information displayed by the function Name Range Step Descriptio...

Page 135: ... no additional time delay simultaneously with the start signal Definite time operation DT gives the TRIP signal after a user defined time delay regardless of the measured current as long as the current is above or below the iset value and thus the pick up element is active independent time characteristics Inverse definite minimum time IDMT gives the TRIP signal after a time which is in relation to...

Page 136: ...p if the input signal is not re activated while the release time count is on going Events and registers The current unbalance function abbreviated CUB in event block names generates events and registers from the status changes in START TRIP and BLOCKED The user can select the status ON or OFF for messages in the main event buffer The function offers four 4 independent stages the events are segrega...

Page 137: ...ent Fault currents Trip time remaining Used SG dd mm yyyy hh mm ss mss 2048 2245 Descr Start Trip 20ms current Start Trip current Start 200ms current I1 I2 IZ mag and ang 0 ms 1800s Setting group 1 8 active 5 3 7 Harmonic overcurrent protection Ih 50H 51H 68H The harmonic overcurrent function is used for non directional instant and time delayed overcurrent detection and clearing The number of stag...

Page 138: ...basic design of the protection function is the three pole operation The inputs of the function are the following operating mode selections setting parameters digital inputs and logic signals measured and pre processed current magnitudes The function outputs the START TRIP and BLOCKED signals which can be used for direct I O controlling and user logic programming The function generates general time...

Page 139: ... harmonic component or to the harmonic component percentage content compared to the RMS values A 20 ms averaged value of the selected magnitude is used for pre fault data registering Table 5 3 7 81 Measurement inputs of the Ih function Signal Description Time base IL1FFT The magnitudes RMS of phase L1 A current components Fundamental 2nd harmonic 3rd harmonic 4th harmonic 5th harmonic 6th harmonic...

Page 140: ...rent components Fundamental 2nd harmonic 3rd harmonic 4th harmonic 5th harmonic 6th harmonic 7th harmonic 9th harmonic 11th harmonic 13th harmonic 15th harmonic 17th harmonic 19th harmonic 5 ms I01FFT The magnitudes RMS of residual I01 current components Fundamental 2nd harmonic 3rd harmonic 4th harmonic 5th harmonic 6th harmonic 7th harmonic 9th harmonic 11th harmonic 13th harmonic 15th harmonic ...

Page 141: ...al settings The function can be set to monitor the ratio between the measured harmonic and either the measured fundamental component or the per unit value of the harmonic current The user must select the correct measurement input Table 5 3 7 82 Operating mode selection settings Name Range Step Default Description Harmonic selection 2nd harmonic 3rd harmonic 4th harmonic 5th harmonic 6th harmonic 7...

Page 142: ...ntage monitoring The pick up activation of the function is not directly equal to the START signal generation of the function The START signal is allowed if the blocking condition is not active Read only parameters The relay s Info page displays useful real time information on the state of the protection function It is accessed either through the relay s HMI display or through the setting tool soft...

Page 143: ... 5 ms before the set operating delay has passed in order for the blocking to activate in time Operating time characteristics for trip and reset This function supports definite time delay DT and inverse definite minimum time delay IDMT For detailed information on these delay types please refer to the chapter General properties of a protection function and its section Operating time characteristics ...

Page 144: ...p a failing breaker if the retrip fails an incomer breaker can be tripped by using the function s CBFP output The retrip functionality can be disabled if the breaker does not have two trip coils The function can be triggered by the following overcurrent phase and residual digital output monitor digital signal any combination of the above mentioned triggers In the current dependent mode the functio...

Page 145: ...ble cumulative counters for RETRIP CBFP CBFP START and BLOCKED events The following figure presents a simplified function block diagram of the circuit breaker failure protection function Figure 5 3 8 101 Simplified function block diagram of the CBFP function Measured input The function block uses analog current measurement values It always uses the RMS magnitude of the current measurement input Th...

Page 146: ...which output relay of the used protection functions trigger the CBFP countdown For the CBFP function to monitor the output relays selected here the Operation mode selection parameter must be set to a mode that includes digital outputs e g DO only Current and DO Current or signals or DO Pick up The setting parameters Iset and I0set control the pick up and the activation of the current dependent CBF...

Page 147: ...binary signals Function blocking The block signal is checked in the beginning of each program cycle The blocking signal is received from the blocking matrix in the function s dedicated input If the blocking signal is not activated when the pick up element activates a START signal is generated and the function proceeds to the time characteristics calculation If the blocking signal is active when th...

Page 148: ...characteristics Table 5 3 8 91 Setting parameters for operating time characteristics Name Range Step Default Description Retrip 0 No 1 Yes 1 Yes Retrip enabled or disabled When the retrip is disabled the output will not be visible and the TRetr setting parameter will not be available Retrip time delay 0 000 1800 000s 0 005s 0 100s Retrip start the timer This setting defines how long the starting c...

Page 149: ...available The TRIP signal is normally wired to the breaker s trip coil from the device s trip output The retrip is wired from its own device output contact in parallel with the circuit breaker s redundant trip coil The CBFP signal is normally wired from its device output contact to the incomer breaker Below are a few operational cases regarding the various applications A AQ Q F205 F205 Instruction...

Page 150: ... is not monitored in this configuration Therefore if the current is not reduced below the setting limit a RETRIP signal is sent to the redundant trip coil If the current is not reduced within the set time limit the function also sends a CBFP signal to the incomer breaker If the primary protection function clears the fault both counters RETRIP and CBFP are reset as soon as the measured current is b...

Page 151: ... If the current is not reduced below the setting limit or the primary stage tripping signal is not reset a RETRIP signal is sent to the redundant trip coil If the retripping fails and the current is not reduced below the setting limit or the primary stage tripping signal is not reset the function also sends a CBFP signal to the incomer breaker If the primary protection function clears the fault bo...

Page 152: ...ons is met i e the current is above the limit or the signal is active for the duration of the set RETRIP time delay a RETRIP signal is sent to the redundant trip coil If either of the conditions is active for the duration of the set CBFP time delay a CBFP signal is sent to the incomer breaker If the primary protection function clears the fault both counters RETRIP and CBFP are reset as soon as the...

Page 153: ...most common application is when the device s trip output controls the circuit breaker trip coil while one dedicated CBFP contact controls the CBFP function Below are a few operational cases regarding the various applications and settings of the CBFP function A AQ Q F205 F205 Instruction manual Version 2 04 Arcteq Relays Ltd IM00013 151 ...

Page 154: ...rating time The tripping of the primary protection stage is not monitored in this configuration Therefore if the current is not reduced below the setting limit a CBFP signal is sent to the incomer breaker If the primary protection function clears the fault the counter for CBFP resets as soon as the measured current is below the threshold settings A AQ Q F205 F205 Instruction manual Version 2 04 15...

Page 155: ...t operating time The tripping of the primary protection stage is constantly monitored in this configuration If the current is not reduced below the setting limit or the primary stage tripping signal is not reset a CBFP signal is sent to the incomer breaker The time delay counter for CBFP is reset as soon as the measured current is below the threshold settings or the tripping signal is reset This c...

Page 156: ...ing limit and the primary stage tripping signal is reset If either of these conditions is met i e the current is above the limit or the signal is active for the duration of the set CBFP time delay a CBFP signal is sent to the incomer breaker The time delay counter for CBFP is reset as soon as the measured current is below the threshold settings and the tripping signal is reset This configuration a...

Page 157: ...e configuration as a dedicated CBFP unit Figure 5 3 8 110 Wiring diagram when the device is configured as a dedicated CBFP unit A AQ Q F205 F205 Instruction manual Version 2 04 Arcteq Relays Ltd IM00013 155 ...

Page 158: ...utput relay monitoring can be used The counter for the CBFP signal begins when the digital input is activated If the counter is active until the CBFP counter is used the device issues a CBFP command to the incomer breaker In this application the device tripping signals from all outgoing feeders can be connected to one dedicated CBFP device which operates either on current based protection or on al...

Page 159: ...icted earth fault function is used for residual differential current measurement for transformers This function can also be used as the cable end differential function The operating principle is low impedance differential protection with bias characteristics the user can set A differential current is calculated with the sum of the phase currents and the selected residual current input In cable end...

Page 160: ...ed function block diagram of the I0d function Measured input The function block uses analog current measurement values It uses the RMS magnitude of the current measurement inputs Both calculated residual currents and measured residual currents are always used The user can select inputs I01 or I02 for residual current measurement Please note that when the function is in cable end differential mode ...

Page 161: ...erating characteristics Table 5 3 9 96 Pick up settings Name Range Step Default Description I0 Input 0 I01 1 I02 0 I01 Selection of the used residual current measurement input I0 Direction 0 Add 1 Subtract 0 Add Differential current calculation mode This matches the directions of the calculated and measured residual currents to the application The default setting 0 Add means that I0Calc I01 or I0C...

Page 162: ...stics with default settings Figure 5 3 9 113 Differential characteristics for the I0d function with default settings The equations for the differential characteristics are the following Figure 5 3 9 114 Differential current the calculation is based on user selected inputs and direction Figure 5 3 9 115 Bias current the calculation is based on the user selected mode Figure 5 3 9 116 Characteristics...

Page 163: ...l is active when the pick up element activates a BLOCKED signal is generated and the function does not process the situation further If the TRIP function has been activated before the blocking signal it resets and processes the release time characteristics similarly to when the pick up signal is reset The blocking of the function causes an HMI display event and a time stamped blocking event with i...

Page 164: ...nd 10 while the used CTs are still within the promised 5P class which is probably the most common CT accuracy class When the current natural unbalance is compensated in this situation the differential settings may be set to be more sensitive and the natural unbalance does not therefore affect the calculation A AQ Q F205 F205 Instruction manual Version 2 04 162 Arcteq Relays Ltd IM00013 ...

Page 165: ...ent the main differential protection from being tripped by faults occurring outside the protection area in some cases the function has to be disabled or its sensitivity limited to catch earth faults inside the protection area For this purpose the restricted earth fault function is stable since it only monitors the side it is wired to and compares the calculated and measured residual currents Durin...

Page 166: ...r and thus inside of the protection area the function catches the fault with high sensitivity Since the measured residual current now flows in the opposite direction than in the outside fault situation the measured differential current is high A AQ Q F205 F205 Instruction manual Version 2 04 164 Arcteq Relays Ltd IM00013 ...

Page 167: ...es generates events and registers from the status changes in TRIP activated and BLOCKED signals The user can select which event messages are stored in the main event buffer ON OFF or both The events triggered by the function are recorded with a time stamp and with process data values A AQ Q F205 F205 Instruction manual Version 2 04 Arcteq Relays Ltd IM00013 165 ...

Page 168: ...rvoltage protection is based on line to line RMS measurement or to line to neutral RMS measurement as the user selects If the protection is based on line to line voltage overvoltage protection is not affected by earth faults in isolated or compensated networks The blocking signal and the setting group selection control the operating characteristics of the function during normal operation i e the u...

Page 169: ...e measurement values The monitored magnitudes are equal to RMS values A 20 ms averaged value of the selected magnitude is used for pre fault data registering Table 5 3 10 100 Measurement input of the U function Signal Description Time base UL12RMS RMS measurement of voltage UL12 V 5ms UL23RMS RMS measurement of voltage UL23 V 5ms UL31RMS RMS measurement of voltage UL31 V 5ms UL1RMS RMS measurement...

Page 170: ...h a 20 ms averaged history value from 20 ms from START or TRIP event Figure 5 3 10 122 Selectable measurement magnitudes with 3LN U4 VT connection Figure 5 3 10 123 Selectable measurement magnitudes with 3LL U4 VT connection P E voltages not available without residual voltage A AQ Q F205 F205 Instruction manual Version 2 04 168 Arcteq Relays Ltd IM00013 ...

Page 171: ...Uset value in single dual or all voltages it triggers the pick up operation of the function Table 5 3 10 102 Pick up settings Name Description Range Step Default Operation mode Pick up criteria selection 0 1 voltage 1 2 voltages 2 3 voltages 0 1 voltage Uset Pick up setting 50 00 150 00 Un 0 01 Un 105 Un The pick up activation of the function is not directly equal to the START signal generation of...

Page 172: ...up element activates a BLOCKED signal is generated and the function does not process the situation further If the START function has been activated before the blocking signal it resets and the release time characteristics are processed similarly to when the pick up signal is reset The blocking of the function causes an HMI display event and a time stamped blocking event with information of the sta...

Page 173: ...0s 0 01s 0 05s This setting is active and visible when IDMT is the selected delay type Time dial multiplier setting for IDMT characteristics IDMT Multiplier 0 01 25 00s 0 01s 1 00s This setting is active and visible when IDMT is the selected delay type IDMT time multiplier in the Um Uset power Table 5 3 10 105 Setting parameters for reset time characteristics Name Range Step Default Description Re...

Page 174: ... changes in START TRIP and BLOCKED The user can select which event messages are stored in the main event buffer ON OFF or both The function offers four 4 independent stages the events are segregated for each stage operation The events triggered by the function are recorded with a time stamp and with process data values Table 5 3 10 106 Event codes Event number Event channel Event block name Event ...

Page 175: ... the user selects If the protection is based on line to line voltage undervoltage protection is not affected by earth faults in isolated or compensated networks Undervoltage protection has two blocking stages internal blocking based on voltage measurement and low voltage or external blocking e g during voltage transformer fuse failure The blocking signal and the setting group selection control the...

Page 176: ...ck diagram of the undervoltage function Figure 5 3 11 125 Simplified function block diagram of the U function Measured input The function block uses analog voltage measurement values The monitored voltage magnitudes are equal to RMS values A 20 ms averaged value of the selected magnitude is used for pre fault data registering Table 5 3 11 108 Measurement inputs of the U function Signal Description...

Page 177: ...s The selection of the AI channel in use is made with a setting parameter In all possible input channel variations the pre fault condition is presented with a 20 ms averaged history value from 20 ms from START or TRIP event Figure 5 3 11 126 Selectable measurement magnitudes with 3LN U4 VT connection Figure 5 3 11 127 Selectable measurement magnitudes with 3LL U4 VT connection P E voltages not ava...

Page 178: ...tages it triggers the pick up operation of the function Table 5 3 11 110 Pick up settings Name Description Range Step Default Uset Pick up setting 0 00 120 00 Un 0 01 Un 60 Un U Block setting Block setting If set to zero blocking is not in use The operation is explained in the next chapter 0 00 100 00 Un 0 01 Un 10 Un The pick up activation of the function is not directly equal to the START signal...

Page 179: ...the pick up setting value Expected operating time 0 000 1800 000s 0 005s Displays the expected operating time when a fault occurs When IDMT mode is used the expected operating time depends on the measured voltage value If the measured voltage changes during a fault the expected operating time changes accordingly Time remaining to trip 1800 000 1800 000s 0 005s When the function has detected a faul...

Page 180: ...ocking signal needs to reach the device minimum of 5 ms before the set operating delay has passed in order for the blocking to activate in time Operating time characteristics for trip and reset The operating timers behavior during a function can be set for TRIP signal and also for the release of the function in case the pick up element is reset before the trip time has been reached There are three...

Page 181: ...activated the START signal is reset after a set release time delay Time calc reset after release time 1 No 2 Yes 2 Yes Operating timer resetting characteristics selection When actived the operating time counter is reset after a set release time if the pick up element is not activated during this time When disabled the operating time counter is reset directly after the pick up element reset Continu...

Page 182: ...91 UV3 3 Trip OFF 5828 91 UV3 4 Block ON 5829 91 UV3 5 Block OFF 5830 91 UV3 6 Undervoltage Block ON 5831 91 UV3 7 Undervoltage Block OFF 5888 92 UV4 0 Start ON 5889 92 UV4 1 Start OFF 5890 92 UV4 2 Trip ON 5891 92 UV4 3 Trip OFF 5892 92 UV4 4 Block ON 5893 92 UV4 5 Block OFF 5894 92 UV4 6 Undervoltage Block ON 5895 92 UV4 7 Undervoltage Block OFF The function registers its operation into the last...

Page 183: ...lable stages of the function U0 U0 U0 U0 The function constantly measures phase to earth voltage magnitudes and calculates the zero sequence component Neutral overvoltage protection is scaled to line to line RMS level When the line to line voltage of a system is 100 V in the secondary side the earth fault is 100 of the Un and the calculated zero sequence voltage reaches 100 3 V 57 74 V Below is th...

Page 184: ...operational logic consists of the following input magnitude selection input magnitude processing threshold comparator block signal check time delay characteristics output processing The inputs for the function are the following operating mode selections setting parameters digital inputs and logic signals measured and pre processed voltage magnitudes The function outputs the START TRIP and BLOCKED ...

Page 185: ...0 ms from a START or TRIP event Pick up The Uset setting parameter controls the pick up of the U0 function This defines the maximum allowed measured voltage before action from the function The function constantly calculates the ratio between the Uset and the measured magnitude Um for neutral voltage The reset ratio of 97 is built into the function and is always relative to the Uset value The setti...

Page 186: ... the pick up value Function blocking The block signal is checked in the beginning of each program cycle The blocking signal is received from the blocking matrix in the function s dedicated input If the blocking signal is not activated when the pick up element activates a START signal is generated and the function proceeds to the time characteristics calculation If the blocking signal is active whe...

Page 187: ...ut added delay When the parameter is set to 0 005 1800 s the stage operates as independent delayed Time dial setting k 0 01 60 00s 0 01s 0 05s The setting is active and visible when IDMT is the selected delay type Time dial multiplier setting for IDMT characteristics IDMT Multiplier 0 01 25 00s 0 01s 1 00s The setting is active and visible when IDMT is the selected delay type IDMT time multiplier ...

Page 188: ... in START TRIP and BLOCKED The user can select which event messages are stored in the main event buffer ON OFF or both The function offers four 4 independent stages the events are segregated for each stage operation The events triggered by the function are recorded with a time stamp and with process data values Table 5 3 12 120 Event codes Event number Event channel Event block name Event code Des...

Page 189: ...ative sequence protection for both overvoltage and undervoltage the user selects the needed function Each device with a voltage protection module has four 4 available stages of the function The function constantly measures the RMS value of phase to earth voltage magnitudes or line to line and neutral voltage magnitudes to calculate the positive or negative sequence voltage The user can select the ...

Page 190: ...hases 1 and 3 Negative sequence voltage calculation Below is the formula for symmetric component calculation and therefore to negative sequence voltage calculation In what follows are three examples of negative sequence calculation negative sequence component vector A AQ Q F205 F205 Instruction manual Version 2 04 188 Arcteq Relays Ltd IM00013 ...

Page 191: ...n instant or time delayed mode In time delayed mode the operation can be selected between definite time DT mode and inverse definite minimum time IDMT The operational logic consists of the following input magnitude selection input magnitude processing threshold comparator block signal check time delay characteristics output processing The inputs for the function are the following operating mode se...

Page 192: ...ble cumulative counter for the START TRIP and BLOCKED events The following figure presents a simplified function block diagram of the sequence voltage function Figure 5 3 13 140 Simplified function block diagram of the U1 U2 function Measured input The function block uses analog voltage measurement values and always uses RMS values A 20 ms averaged value of the selected magnitude is used for pre f...

Page 193: ... the function Table 5 3 13 124 Pick up settings Name Description Range Step Default Pick up terms Selects whether the function picks up when the monitored voltage is under or over the set pick up value Over Under Over Uset Pick up setting 5 00 150 00 Un 0 01 Un 105 Un Ublk Undervoltage blocking visible when the pick up term is Under 0 00 80 00 Un 0 01 Un 5 Un The pick up activation of the function...

Page 194: ...me is left before tripping occurs Umeas Uset at the moment 0 00 1250 00Um Uset 0 01Um Uset The ratio between the measured voltage and the pick up value Function blocking The block signal is checked in the beginning of each program cycle The blocking signal is received from the blocking matrix in the function s dedicated input If the blocking signal is not activated when the pick up element activat...

Page 195: ...DMT function follows one of the following formulas Where t operating time k time dial setting Um measured voltage Us pick up setting a IDMT multiplier setting The following table presents the setting parameters for the function s time characteristics Table 5 3 13 126 Setting parameters for operating time characteristics Name Range Step Default Description Delay type 1 DT 2 IDMT 1 DT Selection of t...

Page 196: ...an reset characteristics through the application The default setting is a 60 ms delay the time calculation is held during the release time In the release delay option the operating time counter calculates the operating time during the release When using this option the function does not trip if the input signal is not re activated while the release time count is on going Events and registers The s...

Page 197: ...e the frequency to drop below or rise above the allowed level When the consumption is larger than the generated power the frequency may drop When more power is generated than is consumed overfrequency can occur In generator applications too big a load or a malfunction in the power controller can cause the frequency to decrease Underfrequency causes damage to turbine wings through vibration as well...

Page 198: ... for direct I O controlling and user logic programming The function generates general time stamped ON OFF events to the common event buffer from each of the three 3 output signal In the instant operating mode the function outputs START and TRIP events simultaneously with an equivalent time stamp The time stamp resolution is 1 ms The function also provides a resettable cumulative counter for the ST...

Page 199: ...l the pick up of each stage of the f function They define the maximum or minimum allowed measured frequency before action from the function The function constantly calculates the ratio between the pick up setting and the measured frequency The reset ratio of 20mHz is built into the function and is always relative to the pick up value Table 5 3 14 131 Pick up settings Name Description Range Step De...

Page 200: ...d Displays the status of the protection function f meas f set 0 000 20 000fm fset 0 001fm fset The ratio between the measured frequency and the pick up value Expected operating time 0 000 1800 000s 0 005s Displays the expected operating time when a fault occurs Time remaining to trip 1800 000 1800 000s 0 005s When the function has detected a fault and counts down time towards a trip this displays ...

Page 201: ...ata values Table 5 3 14 133 Event codes Event number Event channel Event block name Event code Description 6336 99 FRQV1 0 f Start ON 6337 99 FRQV1 1 f Start OFF 6338 99 FRQV1 2 f Trip ON 6339 99 FRQV1 3 f Trip OFF 6340 99 FRQV1 4 f Start ON 6341 99 FRQV1 5 f Start OFF 6342 99 FRQV1 6 f Trip ON 6343 99 FRQV1 7 f Trip OFF 6344 99 FRQV1 8 f Start ON 6345 99 FRQV1 9 f Start OFF 6346 99 FRQV1 10 f Tri...

Page 202: ...mm ss mss 6336 6383 Descr Start Trip 20ms frequency Fault frequency Setting group 1 8 active 5 3 15 Rate of change of frequency df dt 81R The rate of change of frequency function is used to detect fast drops or increases in frequency If the load changes fast this function detects and clears the frequency based faults faster than conventional underfrequency and overfrequency protections One of the ...

Page 203: ... Each stage can be activated and deactivated individually After the f mode has been activated Protection Stage activation Frequency stages the user can activate and deactivate the individual stages at will Protection Frequency Frequency protection f INFO Stage operational setup The outputs of the function are the START TRIP and BLOCKED signals The frequency protection function uses a total of eigh...

Page 204: ...the factory defined tracking reference which can be checked from the Frequency tab of the Measurement menu Table 5 3 15 135 Measurement inputs of the df dt function Signals Description Time base VT1 U1 U2 U3 L N voltages of the first voltage transformer 5ms VT2 U1 U2 U3 L N voltages of the second voltage transformer 5ms Pick up and time delay The df dt 1 pick up df dt 2 pick up etc setting paramet...

Page 205: ...nction The START signal is allowed if the blocking condition is not active Operating time characteristics for trip and reset This function supports definite time delay DT For detailed information on this delay types please refer to the chapter General properties of a protection function and its section Operating time characteristics for trip and reset Read only parameters The relay s Info page dis...

Page 206: ... blocking signal needs to reach the device minimum of 5 ms before the set operating delay has passed in order for the blocking to activate in time Events and registers The rate of change of frequency function abbreviated DFT in event block names generates events and registers from the status changes in START TRIP and BLOCKED The user can select which event messages are stored in the main event buf...

Page 207: ...28 103 DFT1 36 df dt 3 Block ON 6629 103 DFT1 37 df dt 3 Block OFF 6630 103 DFT1 38 df dt 4 Block ON 6631 103 DFT1 39 df dt 4 Block OFF 6632 103 DFT1 40 df dt 5 Block ON 6633 103 DFT1 41 df dt 5 Block OFF 6634 103 DFT1 42 df dt 6 Block ON 6635 103 DFT1 43 df dt 6 Block OFF 6636 103 DFT1 44 df dt 7 Block ON 6637 103 DFT1 45 df dt 7 Block OFF 6638 103 DFT1 46 df dt 8 Block ON 6639 103 DFT1 47 df dt ...

Page 208: ...o block signal check time delay characteristics output processing The inputs for the function are the following operating mode selections setting parameters digital inputs and logic signals measured and pre processed power magnitudes The function outputs the START TRIP and BLOCKED signals which can be used for direct I O controlling and user logic programming The function generates general time st...

Page 209: ...ore action from the function The function constantly calculates the ratio between the Pset and the measured magnitude Pm The reset ratio of 97 is built into the function and is always relative to the Pset value Table 5 3 16 141 Pick up settings Name Description Range Step Default Pset Pick up setting 0 0 100 000kW 0 01kW 100kW The pick up activation of the function is not directly equal to the STA...

Page 210: ...time characteristics are processed similarly to when the pick up signal is reset The blocking of the function causes an HMI display event and a time stamped blocking event with information of the startup power value to be issued The blocking signal can also be tested in the commissioning phase by a software switch signal when the relay s testing mode Enable stage forcing is activated General Devic...

Page 211: ...maining Used SG dd mm yyyy hh mm ss mss 6400 6405 Descr Start Trip 20ms power Start Trip power Start 200ms power 0 ms 1800s Setting groups 1 8 active 5 3 17 Underpower protection P 32U The underpower function is used for instant and time delayed active underpower protection This function is used to detect loss of load conditions when there is no significant loss of current Figure 5 3 17 148 Operat...

Page 212: ...y with an equivalent time stamp The time stamp resolution is 1 ms The function also provides a resettable cumulative counter for the START TRIP and BLOCKED events The following figure presents a simplified function block diagram of the underpower function Figure 5 3 17 149 Simplified function block diagram of the P function Measured input The function block uses three phase active power values A 2...

Page 213: ...function is not directly equal to the START signal generation of the function The START signal is allowed if the blocking condition is not active Read only parameters The relay s Info page displays useful real time information on the state of the protection function It is accessed either through the relay s HMI display or through the setting tool software when it is connected to the relay and its ...

Page 214: ...e the set operating delay has passed in order for the blocking to activate in time Operating time characteristics for trip and reset This function supports definite time delay DT For detailed information on this delay types please refer to the chapter General properties of a protection function and its section Operating time characteristics for trip and reset Events and registers The underpower fu...

Page 215: ...on is not used to protect the generator itself but to protect the generator s turbine Figure 5 3 18 151 Operating characteristics of reverse power protection The outputs of the function are the START TRIP and BLOCKED signals The reverse power function uses a total of eight 8 separate setting groups which can be selected from one common source The function can operate on instant or time delayed mod...

Page 216: ... the protection relay has more than one CT module the parameter Measured side determines which current measurement is used for the power measurement Table 5 3 18 150 Measurement inputs of the Pr function Signal Description Time base 3PH Active power P Total three phase active power 5ms Pick up The Pset rev setting parameter controls the pick up of the Pr function This defines the maximum allowed m...

Page 217: ...ction does not process the situation further If the START function has been activated before the blocking signal it resets and the release time characteristics are processed similarly to when the pick up signal is reset The blocking of the function causes an HMI display event and a time stamped blocking event with information of the startup power value to be issued The blocking signal can also be ...

Page 218: ...bles and overhead lines The function constantly monitors the instant values of phase TRMS currents including harmonics up to 31st and calculates the set thermal replica status in 5 ms cycles The function includes a total memory function of the load current conditions according to IEC 60255 8 The function is based on a thermal replica which represents the protected object s or cable s thermal loadi...

Page 219: ...in a nominal ambient temperature When the object is loaded with a nominal load for a time equal to its heating constant tau τ 63 of the nominal thermal capacity is used When the loading continues until five times this given constant the used thermal capacity approaches 100 indefinitely but never exceeds it With a single time constant model the cooling of the object follows this same behavior the r...

Page 220: ...nderground cables The ambient temperature compensation takes into account the set minimum and maximum temperatures and the load capacity of the protected object as well as the measured or set ambient temperature The calculated coefficient is a linear correction factor as the following formula shows Where tamb Measured or set ambient temperature can be set in C or in F tmax Maximum temperature can ...

Page 221: ...he correction factor value of 1 00 for the thermal replica A settable thermal capacity curve uses the linear interpolation for ambient temperature correction with a maximum of ten 10 pairs of temperature correction factor pairs Figure 5 3 19 155 Example of the relationship between ground temperature and correction factor The temperature coefficient may be informed in a similar manner to the figure...

Page 222: ...ings of the function s ambient temperature coefficient curve The temperature and correction factor pairs are set to the function s settable curve A AQ Q F205 F205 Instruction manual Version 2 04 220 Arcteq Relays Ltd IM00013 ...

Page 223: ...kSF correction factor is used for non changing corrections its calculation is explained later in this manual Calculating correction factors for a cable or overhead installation requires the consulting of the datasheet for the technical specifications of the used cable This information is usually provided by the cable manufacturer For example cable data may be presented as in the figures below an e...

Page 224: ...perature is 15 C The most important parameters for setting a working thermal image are the cable s current and the installation place In addition to the above mentioned current carrying capacity table the manufacturer should also provide data to allow for fine tuning the thermal image Equally important to the ampere temperature values are the presumptive conditions under which the given continuous...

Page 225: ...nufacturers may give additional information on how to correct the the current carrying capacity to match the changed conditions Below is an example of the correction factors provided a manufacturer Prysmian for correcting the current carrying capacity A AQ Q F205 F205 Instruction manual Version 2 04 Arcteq Relays Ltd IM00013 223 ...

Page 226: ...Figure 5 3 19 160 Example of correction factors for the current carrying capacity as given by a manufacturer A AQ Q F205 F205 Instruction manual Version 2 04 224 Arcteq Relays Ltd IM00013 ...

Page 227: ...tion is flat Its current carrying capacity is 575 A in 65 C and 680 A in 90 C The reference temperature for ground installation is 15 C Let us calculate an estimation of the time constant τ based on the known one second short circuit current related to In If the manufacturer has not provided the time constant it can be estimated from the maximum permissable short circuit current usually a one seco...

Page 228: ...ed when the cable is loaded with a stable current for time equalling five times the time constant τ This uses approximately 71 of the thermal capacity According to the datasheet this current should set the temperature around 65 C therefore the model overprotects by three degrees A AQ Q F205 F205 Instruction manual Version 2 04 226 Arcteq Relays Ltd IM00013 ...

Page 229: ...h a cross section of 500 mm2 is installed with no adjacent cables k 1 into a ground consisting of dry gravel and clay k 0 85 and into the depth of 1 5 meters k 0 95 The cable s 1 s permissible short circuit current is 71 4 kA and its insulation is XLPE The cable s screen circuit is open and the laying formation is flat Its current carrying capacity is 575 A in 65 C and 680 A in 90 C The reference ...

Page 230: ...ith the nominal current one can see the actual current carrying capacity of the cable is much lower than in the presumptive conditions A normal loading current can now warm up the cable too much and threaten its withstandability If the kSF had not been set the thermal image would show a temperature of appr 68 C instead of the real temperature of 96 C A AQ Q F205 F205 Instruction manual Version 2 0...

Page 231: ...stead of the 680 A current given in the initial data Estimating trip time Calcula Calculat ted e ed eff ffectiv ective nominal curr e nominal current ent IN kSF tambfact INom Where IN calculated effective nominal current kSF the service factor kamb the ambient temperature factor INom the nominal current of the protected device Calcula Calculat ted end hea ed end heating ting A AQ Q F205 F205 Instr...

Page 232: ...th the formula above in seconds when replacing the θCalc with the value of the thermal level which from the tripping time is wanted to be calculated in per unit value Function inputs and outputs The blocking signal and the setting group selection control the operating characteristics of the function during normal operation i e the user or user defined logic can change function parameters while the...

Page 233: ...urement values The function block uses TRMS values from the whole harmonic specter of 32 components Table 5 3 19 155 Measurement inputs of the TF function Signal Description Time base IL1 TRMS TRMS measurement of phase L1 A current 5ms IL2 TRMS TRMS measurement of phase L2 B current 5ms IL3 TRMS TRMS measurement of phase L3 C current 5ms RTD Temperature measurement for the ambient correction 5ms T...

Page 234: ...this value This setting is visible if Estimate is selected for the Set or Estimate tau setting kSF service factor 0 01 5 00 0 01 1 00 The service factor which corrects the value of the maximum allowed current according to installation and other conditions varying from the presumptive conditions Cold reset default theta 0 0 150 0 0 1 60 0 The thermal image status in the restart of the function IED ...

Page 235: ...the user settable ambient temperature coefficient curve This setting is visible if Ambient lin or curve is set to Set curve Amb temp k1 k10 0 01 5 00 1 00 0 01 The coefficient value for the temperature reference point The coefficient and temperature reference points must be set as pairs This setting is visible if Ambient lin or curve is set to Set curve Add curvepoint 3 10 0 Not used 1 Used 0 Not ...

Page 236: ...active when the pick up element activates a BLOCKED signal is generated and the function does not process the situation further If the START function has been activated before the blocking signal it resets and processes the release time characteristics similarly to when the pick up signal is reset The blocking of the function causes an HMI display event and a time stamped blocking event with infor...

Page 237: ...sible only when there is a setting fault TF Setting alarm 0 Ambient setting ok 1 Inconsistent setting of ambient k Indicates if ambient k setting has been set wrong Visible only when there is a setting fault Table 5 3 19 161 Measurements Name Range Description values Currents 0 Primary A 1 Secondary A 2 Per unit The active phase current measurement from IL1 A IL2 B and IL3 C phases in given scalin...

Page 238: ...isters The line thermal overload protection function abbreviated TOLF in event block names generates events and registers from the status changes in TRIP and BLOCKED signals The user can select which event messages are stored in the main event buffer ON OFF or both The events triggered by the function are recorded with a time stamp and with process data values Table 5 3 19 163 Event codes Event nu...

Page 239: ...ge is absent the fault direction cannot be solved As backup non directional protection can be used for tripping but in such cases the selectivity of the network will reduce However an angle memory for voltage can be used to prevent this from happening An adjustable voltage level with pre fault voltage angles can be used as a reference for fault direction and or distance The reference can be set ma...

Page 240: ...nd in the device s I O matrix While voltage memory is active voltages are absent and therefore angle measurement is not possible Healthy state angles before a fault are used during a fault This is why a drift between the assumed voltage angle and the actual measured phase current angle takes place While voltage memory is used the angle of phase currents drifts approximately one degree for each pas...

Page 241: ...seconds The function supports the definite time DT delay type It depends on the application for how long the memory should be used During massive bolted faults the fault should be cleared and the breaker opened as soon as possible therefore a short operating time for voltage memory is usually applied A typical delay for voltage memory is between 0 5 1 0 s When the operating time passes and voltage...

Page 242: ...1 4 Current high detected ON 12165 190 M1VT1 5 Current high detected OFF 12166 190 M1VT1 6 Frequency tracked from CT ON 12167 190 M1VT1 7 Frequency tracked from CT OFF 12168 190 M1VT1 8 Using Voltage memory ON 12169 190 M1VT1 9 Using Voltage memory OFF 12170 190 M1VT1 10 Voltage memory blocked ON 12171 190 M1VT1 11 Voltage memory blocked OFF 5 4 Control functions 5 4 1 Setting group selection All ...

Page 243: ...nge is disabled again Setting groups can be controlled either by pulses or by signal levels The setting group controller block gives setting groups priority values for situations when more than one setting group is controlled at the same time the request from a higher priority setting group is taken into use Setting groups follow a hierarchy in which setting group 1 has the highest priority settin...

Page 244: ...lled to ON after Force SG is disabled If there are no other controls the last set setting group remains active Force setting group change 0 Disabled 1 Enabled 0 Disabled The selection of whether the setting group forcing is enabled or disabled This setting has to be active before the setting group can be changed remotely or from a local HMI This parameter overrides the local control of the setting...

Page 245: ...sed Setting group 6 0 Not active 1 Active 0 Not active The selection of Setting group 6 SG6 Has the third lowest priority input in setting group control Can be controlled with pulses or static signals If static signal control is applied SG7 and SG8 requests will not be processed Setting group 7 0 Not active 1 Active 0 Not active The selection of Setting group 7 SG7 Has the second lowest priority i...

Page 246: ...tate of the Petersen coil connection When the connection is done with one wire the setting group change logic can be applied as shown in the figure above The status of the Petersen coil controls whether Setting group 1 is active If the coil is disconnected Setting group 2 is active This way if the wire is broken for some reason the setting group is always controlled to SG2 A AQ Q F205 F205 Instruc...

Page 247: ...Figure 5 4 1 172 Setting group control two wire connection from Petersen coil status A AQ Q F205 F205 Instruction manual Version 2 04 Arcteq Relays Ltd IM00013 245 ...

Page 248: ... With a two wire connection the state of the Petersen coil can be monitored more securely The additional logic ensures that a single wire loss will not affect the correct setting group selection The application controlled setting group change can also be applied entirely from the relay s internal logics For example the setting group change can be based on the cold load pick up function see the ima...

Page 249: ...n setting group control One could also have SG2 be the primary SG while the ON signal would be controlled by the higher priority SG1 this way the setting group would automatically return to SG2 after the automatic control is over Events The setting group selection function block abbreviated SGS in event block names generates events from its controlling status its applied input signals enabling and...

Page 250: ...187 65 SGS 27 SG7 Request OFF 4188 65 SGS 28 SG8 Request ON 4189 65 SGS 29 SG8 Request OFF 4190 65 SGS 30 Remote Change SG Reqeuest ON 4191 65 SGS 31 Remote Change SG Request OFF 4192 65 SGS 32 Local Change SG Request ON 4193 65 SGS 33 Local Change SG Request OFF 4194 65 SGS 34 Force Change SG ON 4195 65 SGS 35 Force Change SG OFF 4196 65 SGS 36 SG Request Fail Not configured SG ON 4197 65 SGS 37 ...

Page 251: ...remote control Local manual control can be done by relays front panel HMI or by external push buttons connected to relays digital inputs Manual remote control can be done through one of the various communication protocols available Modbus IEC101 103 104 etc The function supports the modes Direct control and Select before execute while controlled remotely Automatic controlling can be done with func...

Page 252: ...ice is in Local status Object name Objectx The user set name of the object at maximum 32 characters long Object type 0 Withdrawable circuit breaker 1 Circuit breaker 2 Disconnector MC 3 Disconnector GND 1 Circuit breaker The selection of the object type This selection defines the number of required digital inputs for the monitored object This affects the symbol displayed in the HMI and the monitor...

Page 253: ... Displays the number of successful Close requests Open requests failed 0 232 1 1 Displays the number of failed Open requests Close requests failed 0 232 1 1 Displays the number of failed Close requests Clear statistics 0 1 Clear 0 Clears the request statistics setting them back to zero 0 Automatically returns to after the clearing is finished Table 5 4 2 171 Object types Name Functionalities Descr...

Page 254: ...er SWx A link to a physical digital input Indicates that status of the monitored object 1 means that the object is ready and the spring is charged for a close command If IEC 61850 is enabled GOOSE signals can be used for status indication Syncrocheck permission Sync Check status In Digital input or other logical signal selected by the user SWx A link to a physical digital input or a synchrocheck f...

Page 255: ...Close control input Digital input or other logical signal selected by the user The local Close command from a physical digital input e g a push button Objectx LOCAL Open control input Digital input or other logical signal selected by the user The local Open command from a physical digital input e g a push button Objectx REMOTE Close control input Digital input or other logical signal selected by t...

Page 256: ...enerates events and registers from the status changes in monitored signals as well as control command fails and operations The user can select which event messages are stored in the main event buffer ON OFF or both The function registers its operation into the last twelve 12 time stamped registers The events triggered by the function are recorded with a time stamp and with process data values A AQ...

Page 257: ...14 Close Command ON 2959 46 OBJ1 15 Close Command OFF 2960 46 OBJ1 16 Open Blocked ON 2961 46 OBJ1 17 Open Blocked OFF 2962 46 OBJ1 18 Close Blocked ON 2963 46 OBJ1 19 Close Blocked OFF 2964 46 OBJ1 20 Object Ready 2965 46 OBJ1 21 Object Not Ready 2966 46 OBJ1 22 Sync Ok 2967 46 OBJ1 23 Sync Not Ok 2968 46 OBJ1 24 Open Command Fail 2969 46 OBJ1 25 Close Command Fail 2970 46 OBJ1 26 Final trip ON 2...

Page 258: ...pen Command Fail 3033 47 OBJ2 25 Close Command Fail 3034 47 OBJ2 26 Final trip ON 3035 47 OBJ2 27 Final trip OFF 3072 48 OBJ3 0 Object Intermediate 3073 48 OBJ3 1 Object Open 3074 48 OBJ3 2 Object Close 3075 48 OBJ3 3 Object Bad 3076 48 OBJ3 4 WD Intermediate 3077 48 OBJ3 5 WD Out 3078 48 OBJ3 6 WD In 3079 48 OBJ3 7 WD Bad 3080 48 OBJ3 8 Open Request ON 3081 48 OBJ3 9 Open Request OFF 3082 48 OBJ3...

Page 259: ...Bad 3144 49 OBJ4 8 Open Request ON 3145 49 OBJ4 9 Open Request OFF 3146 49 OBJ4 10 Open Command ON 3147 49 OBJ4 11 Open Command OFF 3148 49 OBJ4 12 Close Request ON 3149 49 OBJ4 13 Close Request OFF 3150 49 OBJ4 14 Close Command ON 3151 49 OBJ4 15 Close Command OFF 3152 49 OBJ4 16 Open Blocked ON 3153 49 OBJ4 17 Open Blocked OFF 3154 49 OBJ4 18 Close Blocked ON 3155 49 OBJ4 19 Close Blocked OFF 31...

Page 260: ...220 50 OBJ5 20 Object Ready 3221 50 OBJ5 21 Object Not Ready 3222 50 OBJ5 22 Sync Ok 3223 50 OBJ5 23 Sync Not Ok 3224 50 OBJ5 24 Open Command Fail 3225 50 OBJ5 25 Close Command Fail 3226 50 OBJ5 26 Final trip ON 3227 50 OBJ5 27 Final trip OFF Table 5 4 2 176 Register content Name Description Date and time dd mm yyyy hh mm ss mss Event code 2944 9883 Descr Recorded Object opening time Time differen...

Page 261: ...y the use in the function s setup phase The inputs of the function are the binary status indications The function generates general time stamped ON OFF events to the common event buffer from each of the following signals OPEN CLOSE BAD and INTERMEDIATE event signals The time stamp resolution is 1 ms Settings Function uses available hardware and software digital signal statuses These input signals ...

Page 262: ...0 105 CIN2 0 Intermediate 6721 105 CIN2 1 Open 6722 105 CIN2 2 Close 6723 105 CIN2 3 Bad 6784 106 CIN3 0 Intermediate 6785 106 CIN3 1 Open 6786 106 CIN3 2 Close 6787 106 CIN3 3 Bad 6848 107 CIN4 0 Intermediate 6849 107 CIN4 1 Open 6850 107 CIN4 2 Close 6851 107 CIN4 3 Bad 6912 108 CIN5 0 Intermediate 6913 108 CIN5 1 Open 6914 108 CIN5 2 Close 6915 108 CIN5 3 Bad 5 4 4 Auto recloser 79 Auto reclosi...

Page 263: ...s as well as local utility knowledge and network practices The user can select whether there is a set time delay called arcing time between shots to burn the fault causing object from the line or whether normal protection operating times are applied When a fault is not present when the breaker is closed but reappears soons after called discrimination time and reclaim time the auto recloser functio...

Page 264: ...vely long overhead line that normally ends with the consumer The consumer residence farm etc can connect to basically any point in the overhead line with a 20 kV 0 4 kV distribution transformer The overhead line can have many branches and it is not uncommon especially in rural areas that there are multiple forest areas the line runs through between the consumer connections In longer lines in spars...

Page 265: ... fails time delayed succeeds from Trip with two shots high speed succeeds from Start with two shots both fail from Start with two shots high speed fails time delayed succeeds from Start with two shots high speed succeeds The signal status graphs describe the statuses of available requests the statuses of the auto recloser s internal signals the statuses of the timers the breaker controls from the ...

Page 266: ...recloser function only monitors the status of the directional earth fault stage s tripping before initiating requests and shots Figure 5 4 4 181 Signal status graph of the permanent earth fault auto recloser cycle 1 An earth fault is found in the protected line causing the I0Dir protection to start calculating the operating time for a trip 2 The I0Dir trips and gives the Open command to the breake...

Page 267: ... stage picks up and starts calculating the operating time for a trip A Close command is dropped after the breaker s Closed indication is received and the auto recloser function starts calculating S Sho hot2 t2 R Reclaim T eclaim Time ime 10 The I0Dir stage trips a third time and gives the REQ2 request to the function However as the function is in the process of calculating the S Sho hot2 R t2 Recl...

Page 268: ...d indication is received and the auto recloser function starts calculating S Sho hot1 t1 R Reclaim T eclaim Time ime 6 The I0Dir stage trips a second time and gives the REQ2 request to the function However as the function is in the process of calculating the Shot1 Reclaim Time when it receives this request the function moves on to the next available shot Shot 2 for the request The S Sho hot2 t2 Ru...

Page 269: ...th reclaim times can be set to 0 s when they are not needed and the function skips all timers that are set to zero 11 The AR R AR Reclaim eclaim time is exceeded and the function is set to Ready to wait for the next request Auto recloser sequence from Trip with two shots high speed succeeds This auto recloser scheme has the same starters and shots as the two previous examples The setting and signa...

Page 270: ...fault returns after a successful cycle and the function s AR Reclaim signal is active the function jumps directly to the Final Trip state and then enters the lock out state The user can control this behavior through the function settings Both reclaim times can be set to 0 s when they are not needed and the function skips all timers that are set to zero The user can also set is so that AR Reclaim i...

Page 271: ... 6 The S Sho hot1 Ar t1 Arcing T cing Time ime 200 ms is exceeded which means that the fault is not cleared and the function sends an Open command to the breaker The function deactivates the S Sho hot1 t1 Running Running signal and instead activates the S Sho hot2 Running t2 Running signal 7 The circuit breaker opens and the S Sho hot2 Dead T t2 Dead Time ime calculation begins 8 The S Sho hot2 De...

Page 272: ...persists the high speed shot but is cleared by the time delayed shot Figure 5 4 4 188 Settings for I with two shots This type of sequence i e two shots required to clear the fault represents 10 15 of all faults that occur in MV overhead line networks Figure 5 4 4 189 Signal status graph of the semi permanent overcurrent auto recloser cycle 1 An overcurrent is found in the protected line causing th...

Page 273: ...t breaker is closed and since the fault was cleared by Shot 2 no more pick ups are detected The Close command is dropped after the the breaker s Closed indication is received The auto recloser function also starts calculating the S Sho hot2 R t2 Reclaim T eclaim Time ime 10 The S Sho hot2 R t2 Reclaim T eclaim Time ime 10 s is exceeded and so the AR Running AR Running S Sho hot2 Running t2 Running...

Page 274: ...il 5 The circuit breaker is closed and since the fault was cleared no pick ups are detected A Close command is dropped after the breaker s Closed indication is received and the auto recloser function starts calculating the S Sho hot1 R t1 Reclaim eclaim T Time ime 6 The S Sho hot1 R t1 Reclaim eclaim T Time ime 10 s is exceeded and so the AR Running AR Running AR1 R AR1 Request equested ed and S S...

Page 275: ...d basic principles of auto reclosing apply This method applies to all meshed or ring networks where the same line is fed power from multiple directions This problem does not exist for typical consumer radial networks Arcing time and discrimination time Generally after the dead time has elapsed and the breaker is closed by the auto recloser this happens the reclaim time starts calculating and if th...

Page 276: ...an be made Auto recloser I O The main outputs of the auto recloser function are the control signals OBJECT OPEN and OBJECT CLOSE The function also reports the recloser status information which is used in the logics LED indications and applied operations The inputs of the function are the following binary recloser request signals blockings controlling signals the controlled object s monitoring and ...

Page 277: ...enters the general reclaim mode and causes a lock out of the function The auto recloser function gives exhaustive information about its operations and statuses through online indications events registered data as well as output signals which can be configured to any output or logical input in the device If the network configuration is altered during an auto reclosing sequence the operation of the ...

Page 278: ...R Request 5 REQ5 Any binary signal in the device The request with the lowest priority it is overridden by all other auto reclosing requests When this request signal is activated and other conditions for reclosing are met a shot is applied Output signals of the auto recloser function The outputs of the function are only indication signals Control Control functions Auto recloser I O The breaker s Op...

Page 279: ... and is calculating the time towards closing it AR Arcing time ON The signal AR Arcing time ON is activated and displayed when the function is calculating the arcing time This signal can be connected to any relay I O as well as to communication protocols AR Reclaim time ON The signal AR Reclaim time ON is activated and displayed when the function is calculating the reclaim time This signal can be ...

Page 280: ...4 Requested 15 AR5 Requested 16 Executing Shot1 17 Executing Shot2 18 Executing Shot3 19 Executing Shot4 20 Executing Shot5 21 Shot Clear When clicked open displays the status of the function Timer active 0 1 AR Lockout 2 AR Reset Reclaim 3 AR Start Delay 4 AR Dead Time 5 AR Discrimination 6 AR Shot Reclaim 0 When the function is counting down towards any action this parameter displays what is the...

Page 281: ...eclosing When set to 0 00 s the recloser goes directly into the Ready state after a successful reclosing If this time is running while a new reclosing request is applied the auto recloser opens the breaker and enters the locked state to prevent further reclosing attempts This selection can be changed via the device s setting group selection in real time Object close reclaim time 0 000 1800 000s 0 ...

Page 282: ...ew request received during the Action time calculation the auto recloser locks out during the reclaim time This selection can be changed via the device s setting group selection in real time ARx Shot action time 0 000 1800 000s 0 005s 0 000s 8 Defines the action time for the shot after dead time and after the breaker is closed i e the maximum arcing time or discrimination time when the reclaim tim...

Page 283: ...into corresponding rows to make the setting of each shot straightforward From the settings the user can see how the reclosing cycle is executed by each request which functions initiate requests and which shots and requests are in use A AQ Q F205 F205 Instruction manual Version 2 04 Arcteq Relays Ltd IM00013 281 ...

Page 284: ...r the auto recloser are the following AR is blocked from Blocking input AR is not enabled signal connected to AR ON OFF is not active AR is calculating the lock out delay The object Open or Close command is blocked The object status is not known intermediate or bad status General reclaim time is running AR is locked When the auto recloser function is in the Inhibit state it returns to the Ready st...

Page 285: ... rejected ON 4036 63 AR1 4 AR Reclosing request rejected OFF 4037 63 AR1 5 AR Reclosing request ON 4038 63 AR1 6 AR Reclosing request OFF 4039 63 AR1 7 User operated Object AR halted and reset 4040 63 AR1 8 Object failure AR locked 4041 63 AR1 9 Shot failed 4042 63 AR1 10 AR cycle ends due to a discrimination request 4043 63 AR1 11 AR Shot clear 4044 63 AR1 12 Object Close request 4045 63 AR1 13 O...

Page 286: ...ute OFF 4073 63 AR1 41 Shot 5 Execute ON 4074 63 AR1 42 Shot 5 Execute OFF 4075 63 AR1 43 Seqeunce finished the Final trip armed 4076 63 AR1 44 Final trip executed 4077 63 AR1 45 Lock out time ON 4078 63 AR1 46 Lock out time OFF 4079 63 AR1 47 General reclaim time ON 4080 63 AR1 48 General reclaim time OFF 4081 63 AR1 49 Shot start time ON 4082 63 AR1 50 Shot start time OFF 4083 63 AR1 51 Dead tim...

Page 287: ...d Executing Shot 1 AR Timers No timers running 0 000 s dd mm yyyy hh mm ss mss AR Status AR is ready AR is not running Start time counting AR2 Requested Executing Shot 1 AR Timers Start Delay 0 000 s dd mm yyyy hh mm ss mss AR Status AR is ready AR is running Start time counting AR2 Requested Executing Shot 1 AR Timers Start Delay 0 000 s dd mm yyyy hh mm ss mss AR Status AR is ready AR is running...

Page 288: ...se command which caused the dead time to be 270 ms longer that its set value The reason for this behavior can be verified from the object control and monitoring function s registers The example below shows that the object was not ready when it received the closing request from the auto recloser function and kept the request pending until it was ready to execute the Close command dd mm yyyy hh mm s...

Page 289: ...industrial network may find the cold load pick up function useful The operating decisions are based on phase current magnitudes and magnitude changes which the function constantly measures The blocking signal and the setting group selection control the operating characteristics of the function during normal operation i e the user or user defined logic can change function parameters while the funct...

Page 290: ...ween the setting values and the measured magnitude Im for each of the three phases The reset ratio of 97 is built into the function and is always relative to the setting value The setting value is common for all measured phases When the Im exceeds the setting value in single dual or all phases it triggers the pick up operation of the function Table 5 4 5 189 Pick up settings Name Range Step Defaul...

Page 291: ...ng signal is active when the pick up element activates a BLOCKED signal is generated and the function does not process the situation further If the CLPU ACT function has been activated before the blocking signal it resets and processes the release time characteristics similarly to when the pick up signal is reset The blocking of the function causes an HMI display event and a time stamped blocking ...

Page 292: ... parameter operates as the reclaim time for the function in case the inrush current is not immediately initiated in the start up sequence The six examples below showcase some typical cases with the cold load pick up function Figure 5 4 5 196 Example of timers and pick up parameters normal CLPU situation In the example above the cold load pick up function activates after the measured current dips b...

Page 293: ... below the Ilow setting because the Tset is not exceeded and therefore no cold load pick up signal is issued If the user wants the function to activate within a shorter period of time the Tset parameter can be se to a lower value If the user wants no delay the Tset can be zero seconds and the operation will be immediate A AQ Q F205 F205 Instruction manual Version 2 04 Arcteq Relays Ltd IM00013 291...

Page 294: ...ured current dips below the Ilow setting and has been there for Tset amount of time When the Im exceeds the Ihigh setting a counter starts counting towards the Tmax time The measured current exceeds the Iover setting during the start up situation and causes the cold load pick up signal to be released immediately A AQ Q F205 F205 Instruction manual Version 2 04 292 Arcteq Relays Ltd IM00013 ...

Page 295: ...ter the measured current has stayed below the Ilow setting for a Tset amount of time When the current exceeds the Ihigh setting a timer starts counting towards the Tmax time The measured current stays above the Ihigh setting until the Tmax is reached which causes the release of the cold load pick up signal A AQ Q F205 F205 Instruction manual Version 2 04 Arcteq Relays Ltd IM00013 293 ...

Page 296: ...es after the measured current has stayed below the Ilow setting for a Tset amount of time The current stays between the Ilow setting and the Ihigh setting so the cold load pick up signal is active for Tmin time As no inrush current is detected during that time the signal is released A AQ Q F205 F205 Instruction manual Version 2 04 294 Arcteq Relays Ltd IM00013 ...

Page 297: ...is over and the Tmin time is over Events and registers The cold load pick up function abbreviated CLP in event block names generates events and registers from the status changes of the LowStart HighStart LoadNormal Overcurrent CLPUActivated and BLOCKED signals of the cold load pick up function as well as from the internal pick up comparators The user can select which event messages are stored in t...

Page 298: ...ing up the tripping when the breaker is closed towards a fault or forgotten earthing to reduce the damage in the fault location The function can be used to control protection functions or it can be used to directly trip a breaker if any of the connected protection functions starts during the set SOTF time The operation of the function is instant after the conditions are met and any one signal conn...

Page 299: ...unction input activates the function s instant trip if applied when the function is calculating the SOTF time Settings The switch on to fault function has one setting and it determines how long the function remains active after it has been triggered If the inputs receive any of the set signals during this time the function s trip is activated Table 5 4 6 195 Active settings Name Range Step Default...

Page 300: ...6 197 Event codes Event number Event channel Event block name Event code Description 3904 61 SOF1 0 SOTF Init ON 3905 61 SOF1 1 SOTF Init OFF 3906 61 SOF1 2 SOTF Block ON 3907 61 SOF1 3 SOTF Block OFF 3908 61 SOF1 4 SOTF Active ON 3909 61 SOF1 5 SOTF Active OFF 3910 61 SOF1 6 SOTF Trip ON 3911 61 SOF1 7 SOTF Trip OFF The function registers its operation into the last twelve 12 time stamped registe...

Page 301: ...o SS mode SYN1 Supervises the synchronization condition between the channel set to SS mode and the selected system voltage UL1 UL2 UL3 UL12 UL23 or UL31 Synchroswitch is available SYN2 Not active and not visible SYN3 Not active and not visible When both U3 and U4 have been set to SS mode SYN1 Supervises the synchronization condition between the U3 channel and the selected system voltage UL1 UL2 UL...

Page 302: ...function 2LL U0 U4 mode SYN1 in use UL12 as reference voltage Figure 5 4 7 205 Example connection of the synchrocheck function 2LL U3 U4 mode SYN3 in use UL12 as reference voltage A AQ Q F205 F205 Instruction manual Version 2 04 300 Arcteq Relays Ltd IM00013 ...

Page 303: ...ion synchrocheck over one breaker with 3LL and 3LN VT connections Figure 5 4 7 207 Example application synchrocheck over one breaker with 2LL VT connection A AQ Q F205 F205 Instruction manual Version 2 04 Arcteq Relays Ltd IM00013 301 ...

Page 304: ...Figure 5 4 7 208 Example application synchrocheck over two breakers with 2LL VT connection A AQ Q F205 F205 Instruction manual Version 2 04 302 Arcteq Relays Ltd IM00013 ...

Page 305: ...oltages The outputs of the function are the SYN OK BYPASS and BLOCKED signals The synchrocheck function uses a total of eight 8 separate setting groups which can be selected from one common source Depending on how the measured voltage compares to the set U live and U dead parameters either system can be in a live or a dead state The parameter SYNx U conditions is used to determine the conditions i...

Page 306: ...ing figures present simplified function block diagrams of the synchrocheck function Figure 5 4 7 211 Simplified function block diagram of the SYN1 and SYN2 function A AQ Q F205 F205 Instruction manual Version 2 04 304 Arcteq Relays Ltd IM00013 ...

Page 307: ...nt of voltage U1 V 5ms U2RMS RMS measurement of voltage U2 V 5ms U3RMS RMS measurement of voltage U3 V 5ms U4RMS RMS measurement of voltage U4 V 5ms Read only parameters The relay s Info page displays useful real time information on the state of the protection function It is accessed either through the relay s HMI display or through the setting tool software when it is connected to the relay and i...

Page 308: ...0 360deg 0 001deg Networks placement in degrees Function blocking The block signal is checked in the beginning of each program cycle The blocking signal is received from the blocking matrix in the function s dedicated input If the blocking signal is not activated when the synchronization is OK a SYN OK signal is generated If the blocking signal is active when the SYN OK activates a BLOCKED signal ...

Page 309: ...ime between a close command given to a breaker and the breaker entering the closed state This setting is used to time the closing of the breaker so that both sides are as synchronized as possible when the breaker is actually closed This setting is only visible when SYN1 switching is activated SYN1 Switching object 0 Object 1 1 Object 2 2 Object 3 3 Object 4 4 Object 5 0 Object 1 When synchroswitch...

Page 310: ... such as SYN OK BYPASS and BLOCKED The user can select which event messages are stored in the main event buffer ON OFF or both The function offers three 3 independent stages the events are segregated for each stage operation The events triggered by the function are recorded with a time stamp and with process data values Table 5 4 7 203 Event codes Event number Event channel Event block name Event ...

Page 311: ...3 SYN3 Bypass OFF 2914 45 SYN1 34 SYN3 Volt condition OK 2915 45 SYN1 35 SYN3 Volt cond not match 2916 45 SYN1 36 SYN3 Volt diff Ok 2917 45 SYN1 37 SYN3 Volt diff out of setting 2918 45 SYN1 38 SYN3 Angle diff Ok 2919 45 SYN1 39 SYN3 Angle diff out of setting 2920 45 SYN1 40 SYN3 Frequency diff Ok 2921 45 SYN1 41 SYN3 Frequency diff out of setting 2922 45 SYN1 42 SYN1 Switch ON 2923 45 SYN1 43 SYN...

Page 312: ... properties by changing the setting group However this binary signal can also be used for any number of other purposes just like all other binary signals Once a programmable control switch has been activated or disabled it remains in that state until given a new command to switch to the opposite state see the image below The switch cannot be controlled by an auxiliary input such as digital inputs ...

Page 313: ...accuracies into account Analog input scaling curve settings can be found at Measurement AI mA DI volt scaling menu Currently following measurements can be scaled with analog input scaling curves RTD inputs and mA inputs in RTD mA input option cards mA inputs in mA output mA input option cards Digital input voltages Table 5 4 9 207 Main settings input channel Name Range Step Default Description Ana...

Page 314: ...ut 1 000 000 00 1 000 000 00 0 00001 Displays the output of the curve The input signal filter see the image below calculates the average of received signals according to the set time constant This is why rapid changes and disturbances such as fast spikes are smothered The Nyquist rate states that the filter time constant must be at least double the period time of the disturbance process signal For...

Page 315: ... 0 000 01 1 The measured input value at Curve Point 2 Scaled output value 1 107 107 0 000 01 0 Scales the measured milliampere signal at Point 2 Add curvepoint 3 20 0 Not used 1 Used 0 Not used Allows the user to create their own curve with up to twenty 20 curve points instead of using a linear curve between two points 5 4 10 Logical outputs Logical outputs are used for sending binary signals out ...

Page 316: ...t which has been set to Hold mode is controlled to 1 the input will switch to status 1 and it stays in that status until it is given a control command to go to status 0 or until the device is rebooted When a logical input which has been set to Pulse mode is controlled to 1 the input will switch to status 1 and return back to 0 after 5 ms The figure below presents the operation of a logical input i...

Page 317: ...nitoring the CTs as well as the wirings between the device and the CT inputs for malfunctions and wire breaks An open CT circuit can generate dangerously high voltages into the CT secondary side and cause unintended activations of current balance monitoring functions Figure 5 5 1 216 Secondary circuit fault in phase L1 wiring A AQ Q F205 F205 Instruction manual Version 2 04 Arcteq Relays Ltd IM000...

Page 318: ...ivate None of the three phase currents exceeds the Iset high limit setting At least one of the three phase currents exceeds the Iset low limit setting At least one of the three phase currents are below the Iset low limit setting The ratio between the calculated minum and maximum of the three phase currents is below the Iset ratio setting The ratio between the negative sequence and the positive seq...

Page 319: ...elect what is used for the residual current measurement nothing the I01 RMS measurement or the I02 RMS measurement Table 5 5 1 209 Measured inputs of the CTS function Signal Description Time base IL1RMS RMS measurement of phase L1 A current 5ms IL2RMS RMS measurement of phase L2 B current 5ms IL3RMS RMS measurement of phase L3 C current 5ms I01RMS RMS measurement of residual input I01 5ms A AQ Q F...

Page 320: ...ine is energized the currently present calculated residual current is compensated to 0 Pick up The Iset and I0set setting parameters control the current dependent pick up and activation of the current transformer supervision function They define the minimum and maximum allowed measured current before action from the function The function constantly calculates the ratio between the setting values a...

Page 321: ...received from the blocking matrix in the function s dedicated input If the blocking signal is not activated when the pick up element activates a START signal is generated and the function proceeds to the time characteristics calculation If the blocking signal is active when the pick up element activates a BLOCKED signal is generated and the function does not process the situation further If the ST...

Page 322: ...rcuit fault in phase L1 wiring When a fault is detected and all conditions are met the CTS timer starts counting If the situation continues until the set time has passed the function issues an alarm A AQ Q F205 F205 Instruction manual Version 2 04 320 Arcteq Relays Ltd IM00013 ...

Page 323: ...me has passed the function issues an alarm This means that the function supervises both the primary and the secondary circuit Figure 5 5 1 221 No wiring fault but heavy unbalance If any of the phases exceed the Iset high limit setting the operation of the function is not activated This behavior is applied to short circuits and earth faults even when the fault current exceeds the Iset high limit se...

Page 324: ...s are adjusted according to the application s normal behavior the operation of the function can be set to be very sensitive for broken circuit and conductor faults Figure 5 5 1 223 Normal situation residual current also measured When the residual condition is added with the I0 input selection the sum of the current and the residual current are compared against each other to verify the wiring condi...

Page 325: ...all be issued in case if the situation continues until the set alarming time is met Figure 5 5 1 225 Broken primary phase current wiring In this example all other condition are met except the residual difference That is now 0 In which indicates a primary side fault A AQ Q F205 F205 Instruction manual Version 2 04 Arcteq Relays Ltd IM00013 323 ...

Page 326: ...TED and BLOCKED signals The user can select which event messages are stored in the main event buffer ON OFF or both The events triggered by the function are recorded with a time stamp and with process data values Table 5 5 1 212 Event codes Event number Event channel Event block name Event code Description 3328 52 CTS1 0 Alarm ON 3329 52 CTS1 1 Alarm OFF 3330 52 CTS1 2 Block ON 3331 52 CTS1 3 Bloc...

Page 327: ...1 8 active 5 5 2 Voltage transformer supervision 60 Voltage transformer supervision is used to detect errors in the secondary circuit of the voltage transformer during fuse failure This signal is mostly used as an alarming function or to disable functions that require adequate voltage measurement Figure 5 5 2 227 Secondary circuit fault in phase L1 wiring The following figure presents a simplified...

Page 328: ...asurement of voltage UL12 V 5ms UL23RMS RMS measurement of voltage UL23 V 5ms UL31RMS RMS measurement of voltage UL31 V 5ms UL1RMS RMS measurement of voltage UL1 V 5ms UL2RMS RMS measurement of voltage UL2 V 5ms UL3RMS RMS measurement of voltage UL3 V 5ms U1P Positive sequence voltage 5ms U2N Negative sequence voltage 5ms UZ0 Zero sequence voltage 5ms UL12Ang Angle of UL12 voltage 5ms UL23Ang Angl...

Page 329: ...f the bus fuse is supervised The supervised signal is determined the VTS MCB Trip bus setting I O Fuse failure inputs Line fuse fail check 0 No 1 Yes 1 Yes Selects whether or not the state of the line fuse is supervised The supervised signal is determined by the VTS MCB Trip line setting I O Fuse failure inputs The pick up activation of the function is not directly equal to the START signal genera...

Page 330: ...gnal it resets and the release time characteristics are processed similarly to when the pick up signal is reset The blocking of the function causes an HMI display event and a time stamped blocking event with information of the startup voltage values and its fault type to be issued The blocking signal can also be tested in the commissioning phase by a software switch signal when the relay s testing...

Page 331: ... A B C D angle diff Trip time remaining Used SG dd mm yyyy hh mm ss mss 3392 3403 Descr 0 No voltage 1 Voltage OK 2 Low voltage 0 Bus dead 1 Bus live VTS OK Seq OK 2 Bus live VTS OK Seq reversed 3 Bus live VTS OK Seq undefined 4 Bus live VTS fault 0 00 360 00deg Time remaining to alarm 0 1800s Setting group 1 8 active 5 5 3 Circuit breaker wear The circuit breaker wear function is used for monitor...

Page 332: ...puts of the function are the ALARM 1 and ALARM 2 signals The inputs for the function are the following setting parameters binary output signals measured and pre processed current magnitudes The function s output signals can be used for direct I O controlling and user logic programming The function generates general time stamped ON OFF events to the common event buffer from each of the two 2 output...

Page 333: ...f interrupting life operations at the rated breaking current Open Current 1 Inom 0 100 00kA 0 01kA 1kA The rated normal current RMS Current 2 Imax 0 100 00kA 0 01kA 20kA The rated short circuit breaking current RMS Pick up for alarming For the alarm stages Alarm 1 and Alarm 2 the user can set the pick up level for the number of operations left The pick up setting is common for all phases and the a...

Page 334: ... provided by the manufacturer with the data relevant to our settings highlighted in red Now we set the stage as follows Parameter Setting Current 1 0 80 kA Operation 1 30 000 operations Current 2 16 00 kA Operations 2 100 operations Enable Alarm 1 1 Enabled Alarm 1 Set 1000 operations Enable Alarm 2 1 Enabled A AQ Q F205 F205 Instruction manual Version 2 04 332 Arcteq Relays Ltd IM00013 ...

Page 335: ...ess data The table below presents the structure of the function s register content Table 5 5 3 223 Register content Date and time Event code Trigger current Deducted Op Operations left dd mm yyyy hh mm ss mss 3712 3716 Descr Phase currents on trigger time L1 L2 L3 Deducted operations from the cumulative sum L1 L2 L3 Operations left 5 5 4 Fault locator 21FL The fault locator function is used for re...

Page 336: ...tages the function can only record phase to phase impedance loops If there are available voltages the function can also record phase to neutral impedance loops Depending on the measured phase currents at the moment the triggering signal was received the recorded impedance loop is selected from the available options See the table Required current conditions for more information on which conditions ...

Page 337: ... main event buffer ON OFF or both The events triggered by the function are recorded with a time stamp and with process data values Table 5 5 4 227 Event codes Event Number Event channel Event block name Event Code Description 2752 43 FLX1 0 Flocator triggered ON 2753 43 FLX1 1 Flocator triggered OFF 2754 43 FLX1 2 Flocator Calculation ON 2755 43 FLX1 3 Flocator Calculation OFF The function registe...

Page 338: ... the setting group selection control the operating characteristics of the function during normal operation i e the user or user defined logic can change function parameters while the function is running This only applies if the alarming is activated The outputs of the function are the START and ALARM ACT signals for the phase current THDPH and the residual currents THDI01 and THDI02 as well as BLO...

Page 339: ...T FFT measurement of phase L1 A current 5ms IL2FFT FFT measurement of phase L2 B current 5ms IL3FFT FFT measurement of phase L3 C current 5ms I01FFT FFT measurement of residual I01 current 5ms I02FFT FFT measurement of residual I02 current 5ms The selection of the calculation method is made with a setting parameter common for all measurement channels General settings The following general settings...

Page 340: ...es measured THD value has to exceed this setting in order for the alarm signal to activate I01 THD pick up 0 10 100 00 0 01 10 00 The pick up setting for the THD alarm element from the residual current I01 The measured THD value has to exceed this setting in order for the alarm signal to activate I02 THD pick up 0 10 100 00 0 01 10 00 The pick up setting for the THD alarm element from the residual...

Page 341: ...ion Phase THD alarm delay 0 000 1800 000s 0 005s 10 000s Defines the delay for the alarm timer from the phase currents measured THD I01 THD alarm delay 0 000 1800 000s 0 005s 10 000s Defines the delay for the alarm timer from the residual current I01 s measured THD I02 THD alarm delay 0 000 1800 000s 0 005s 10 000s Defines the delay for the alarm timer from the residual current I02 s measured THD ...

Page 342: ...amples per cycle The recorder also supports 95 digital channels simultaneously with the twenty 20 measured analog channels The recorder provides a great tool to analyze the performance of the power system during network disturbance situations The recorder s output is in general COMTRADE format and it is compatible with most viewers and injection devices The files are based on the IEEE standard C37...

Page 343: ...ne CT card 3 I02 c Residual current I02 coarse CT card 3 I02 f Residual current I02 fine CT card 3 ISup_3 Current measurement module voltage supply supervision CT card 3 UL1 2 VT2 Line to neutral UL1 or line to line voltage U12 VT card 2 UL2 3 VT2 Line to neutral UL2 or line to line voltage U23 VT card 2 UL3 1 VT2 Line to neutral UL3 or line to line voltage U31 VT card 2 U0 SS VT2 Zero sequence vo...

Page 344: ...urr ILx TRMS Phase current TRMS ILx IL1 IL2 IL3 P P curr ILx Phase to phase current ILx IL1 IL2 IL3 Pha curr ILx TRMS Sec Secondary phase current TRMS IL1 IL2 IL3 P P curr I0x Phase to phase current I0x I01 I02 Voltages Ux Volt p u Ux voltage in per unit values U1 U2 U3 U4 System volt ULxx mag Magnitude of the system voltage ULxx UL12 UL23 UL31 Ux Volt pri Primary Ux voltage U1 U2 U3 U4 System vol...

Page 345: ...I02 ILx Reactive Current Pri Primary reactive current ILx IL1 IL2 IL3 I0x Residual Reactive Current Sec Secondary residual reactive current I0x I01 I02 Power GYB frequency Lx PF Lx power factor L1 L2 L3 Curve x Input Input of Curve x 1 2 3 4 POW1 3PH Apparent power S Three phase apparent power Curve x Output Output of Curve x 1 2 3 4 POW1 3PH Apparent power S MVA Three phase apparent power in mega...

Page 346: ...gnals see the individual function description for the specific outputs Status PushButton x Off Status of Push Button 1 12 is OFF Always True False Always false is always 0 Always true is always 1 Forced SG in use Stage forcing in use OUTx Output contact statuses SGx Active Setting group 1 8 active GOOSE INx GOOSE input 1 64 Double Ethernet LinkA down Double ethernet communication card link A conne...

Page 347: ...utomatically Clear all records 0 1 Clear 0 Clears all disturbance recordings Clear newest record 0 1 Clear 0 Clears the newest stored disturbance recording Clear oldest record 0 1 Clear 0 Clears the oldest stored disturbance recording Max number of recordings 0 100 1 Displays the maximum number of recordings that can be stored in the device s memory with settings currently in use The maximum numbe...

Page 348: ... relay Up to six 6 recordings can be stored in the FTP at once Once those six recordings have been retrieved and removed more recordings will then be pushed to the FTP When a recording has been sent to the FTP server of the relay it is no longer accessible through setting tools Disturbance recorder Get DR files command Recorder digital channels 0 95 freely selectable channels Selects the digital c...

Page 349: ...etting tool software or relay HMI and the results are analyzed with the AQviewer software is automatically downloaded and installed with AQtivate Registered users can download the latest tools from the Arcteq website arcteq fi downloads In this example we want the recordings to be made according to the following specifications the recording length is 6 0 s the sample rate is 64 s c therefore with ...

Page 350: ...ing the AQviewer software see the image below However the recording must first be made accessible to AQViewer The user can read it from the device s memory Disturbance recorder Get DR files Alternatively the user can load the recordings individually Disturbance recorder DR List from a folder in the PC s hard disk drive the exact location of the folder is described in Tools Settings DR path A AQ Q ...

Page 351: ...nals Analog channels on the left to move them to the plotter In the image below on the left the phase currents IL1 IL2 and IL3 are selected AQViewer color codes them automatically If you want to add another plotter choose the blue icon in the main toolbar on the top Please note that the Add plotter text appears when you move the cursor on top of the icon Once clicked the Add graph pop up window ap...

Page 352: ...itude of individual plotters by holding down S Shift hift and scrolling the mouse wheel up and down respectively 4 You can toggle between primary P and secondary S signals numbered 4 in the image below Events The disturbance recorder function abbreviated DR in event block names generates events and registers from the status changes of the function the recorder generates an event each time it is tr...

Page 353: ...ements are recorded in the setting tool or in the relay If the recording is done in the setting tool both the setting tool software and its Live Edit mode have to be activated The user can change the recording file location by editing the Path field File names can also be changed with the File name field Hitting the Record button the big red circle starts the recorder Please note that closing the ...

Page 354: ...TRMS Pri I Pos Seq Curr angle L2 Exp Imp Act E balance kWh Pri Pos Seq Curr I Neg Seq Curr angle L2 Exp React Cap E Mvarh Pri Neg Seq Curr I Zero Seq Curr angle L2 Exp React Cap E kvarh Pri Zero Seq Curr V Volta oltage mea ge measur surements ements L2 Imp React Cap E Mvarh Res Curr I01 TRMS Pri U1Volt Pri L2 Imp React Cap E kvarh Res Curr I02 TRMS Pri U2Volt Pri L2 Exp Imp React Cap E bal Mvarh S...

Page 355: ...MS p u Exp Active Energy MWh Res Curr I01 TRMS U3Volt p u Exp Active Energy kWh Res Curr I02 TRMS U4Volt p u Imp Active Energy MWh Pha L1 ampl THD Pos Seq Volt p u Imp Active Energy kWh Pha L2 ampl THD Neg Seq Volt p u Exp Imp Act E balance MWh Pha L3 ampl THD Zero Seq Volt p u Exp Imp Act E balance kWh Pha L1 pow THD U1Volt Angle Exp React Cap E Mvarh Pha L2 pow THD U2Volt Angle Exp React Cap E k...

Page 356: ...Zero Seq Curr System Volt UL1 ang S4 Measurement Res Curr I 01 TRMS Pri System Volt UL2 ang S5 Measurement Res Curr I 02 TRMS Pri System Volt UL3 ang S6 Measurement Sec Pha Curr I L1 System Volt U0 ang S7 Measurement Sec Pha Curr I L2 System Volt U1 ang S8 Measurement Sec Pha Curr I L3 System Volt U2 ang S9 Measurement Sec Res Curr I 01 System Volt U3 ang S10 Measurement Sec Res Curr I 02 System V...

Page 357: ...e value of the selected magnitudes at the time of a pre defined trigger signal An typical application is the recording of fault currents or voltages at the time of the breaker trips it can also be used to record the values from any trigger signal set by the user The user can select whether the function records per unit values or primary values Additionally the user can set the function to record o...

Page 358: ...L1Ang IL2Ang IL3Ang I01Ang I02Ang I0CalcAng I1Ang I2Ang The angles of each measured current V Volta oltages ges Descrip Description tion UL1Mag UL2Mag UL3Mag UL12Mag UL23Mag UL31Mag U0Mag U0CalcMag The magnitudes of phase voltages of phase to phase voltages and of residual voltages U1 Pos seq V mag U2 Neg seq V mag The positive sequence voltage and the negative sequence voltage UL1Ang UL2Ang UL3An...

Page 359: ...rence frequency 1 Ref f2 The reference frequency 2 M thermal T The motor thermal temperature F thermal T The feeder thermal temperature T thermal T The transformer thermal temperature RTD meas 1 16 The RTD measurement channels 1 16 Ext RTD meas 1 8 The external RTD measurement channels 1 8 ADAM module Reported values When triggered the function holds the recorded values of up to eight channels as ...

Page 360: ... 22 I0Dir Trip 23 I0Dir Trip 24 I0Dir Trip 25 f Trip 26 f Trip 27 f Trip 28 f Trip 29 f Trip 30 f Trip 31 f Trip 32 f Trip 33 P Trip 34 P Trip 35 Prev Trip 36 T Trip 37 I2 Trip 38 I2 Trip 39 I2 Trip 40 I2 Trip 41 U1 2 Trip 42 U1 2 Trip 43 U1 2 Trip 44 U1 2 Trip 45 U0 Trip 46 U0 Trip 47 U0 Trip 48 U0 Trip The tripped stage Overcurrent fault type 0 1 A G 2 B G 3 A B 4 C G 5 A C 6 B C 7 A B C The ove...

Page 361: ...0 001 A V p u The recorded value in one of the eight channels Events The measurement value recorder function abbreviated VREC in event block names generates events from the function triggers The user can select which event messages are stored in the main event buffer ON OFF or both Table 5 5 8 246 Event codes Event number Event channel Event block name Event code Description 9984 156 VREC1 0 Recor...

Page 362: ...5 255 Defines the address of the NTP client NO NOTE TE This address must be different than the relay s IP address Netmask 0 0 0 0 255 255 255 255 Defines the client s netmask Gateway 0 0 0 0 255 255 255 255 Defines the client s gateway MAC address Displays the MAC address of the client Network status 0 Running 1 IP error 2 NM error 3 GW error Displays the status or possible errors of the NTP clien...

Page 363: ...ables and disables the Modbus TCP on the Ethernet port IP port 0 65 535 Defines the IP port used by Modbus TCP The standard port and the default setting is 502 Event read mode 0 Get oldest available 1 Continue previous connection 2 New events only 0 Get oldest event possible Default and current implementation 1 Continue with the event idx from previous connection 2 Get only new events from connect...

Page 364: ...Channel 0 Channel 7 or None Selects the number of channels to be used by the module Table 6 1 3 254 Channel settings Name Range Step Default Description T C type 0 20mA 1 4 20mA 2 Type J 3 Type K 4 Type T 5 Type E 6 Type R 7 Type S 1 4 20mA Selects the thermocouple or the mA input connected to the I O module Types J K T and E are nickel alloy thermocouples while Types R and S are platinum rhodium ...

Page 365: ... DNP3 IP port 0 65 535 1 20 000 Defines the IP port used by the protocol Slave address 1 65 519 1 1 Defines the DNP3 slave address of the unit Master address 1 65 534 1 2 Defines the address for the allowed master Link layer time out 0 60 000ms 1ms 0ms Defines the length of the time out for the link layer Link layer retries 1 20 1 1 Defines the number of retries for the link layer Diagnostic Error...

Page 366: ...1 1000 0kW 0 1kW 2kW Determines the data reporting deadband settings for this measurement Reactive power deadband 0 1 1000 0kVar 0 1kVar 2kVar Determines the data reporting deadband settings for this measurement Apparent power deadband 0 1 1000 0kVA 0 1kVA 2kVA Determines the data reporting deadband settings for this measurement Power factor deadband 0 01 0 99 0 01 0 05 Determines the data reporti...

Page 367: ...65 534 1 1 Defines the address for the link layer Link layer address size 1 2 1 2 Defines the address size of the link layer Information object address size 2 3 1 3 Defines the address size of the information object Cause of transmission size 1 2 1 2 Defines the cause of transmission size IEC 104 settings Table 6 1 6 259 IEC 104 settings Name Range Step Default Description IEC 104 enable 0 Disable...

Page 368: ...r this measurement Apparent power deadband 0 1 1000 0kVA 0 1kVA 2kVA Determines the data reporting deadband settings for this measurement Power factor deadband 0 01 0 99 0 01 0 05 Determines the data reporting deadband settings for this measurement Frequency deadband 0 01 1 00Hz 0 01Hz 0 1Hz Determines the data reporting deadband settings for this measurement Current deadband 0 01 50 00A 0 01A 5A ...

Page 369: ...ough a communication protocol if one is in use The following table presents the setting parameters available for the 12 channels Table 6 2 261 Fault register settings Name Range Step Default Description Select record source 0 Not in use 1 12 I I I I IL1 IL2 IL3 13 24 Id Id Id Id IL1 IL2 IL3 25 28 I0 I0 I0 I0 I0 29 32 I0d I0d I0d I0d I0 33 FLX 0 Not in use Selects the protection function and its st...

Page 370: ...CalcMag Residual current calculated from phase currents IL1Ang IL2Ang IL3Ang I01Ang I02Ang I0CalcAng I1Ang I2Ang Angles of each measured current Voltages UL1Mag UL2Mag UL3Mag UL12Mag UL23Mag UL31Mag U0Mag U0CalcMag Magnitudes of phase voltages phase to phase voltages and residual voltages U1 Pos seq V mag U2 Neg seq V mag Positive and negative sequence voltages UL1Ang UL2Ang UL3Ang UL12Ang UL23Ang...

Page 371: ...1 8 ADAM module Settings Table 6 3 263 Settings Name Range Step Default Description Measurement value recorder mode 0 Disabled 1 Activated 0 Disabled Activates and disables the real time signals to communication Scale current values to primary 0 No 1 Yes 0 No Selects whether or not values are scaled to primary Slot X magnitude selection 0 Currents 1 Voltages 2 Powers 3 Impedance ZRX and admittance...

Page 372: ...n examples 7 1 Connections of AQ F205 Figure 7 1 237 AQ F205 connections AQ F205 has fixed hardware with digital input and output cards always included A AQ Q F205 F205 Instruction manual Version 2 04 370 Arcteq Relays Ltd IM00013 ...

Page 373: ...7 I0dir 4 67N P 1 32O P 1 32U Pr 1 32R Voltage based Voltage and current based Control functions SOTF Switch on to fault SGS 1 8 0 1 79 OBJ CLPU Cold load pick up V a f 25 Monitoring functions THD 31st CTS VTS CBW Circuit breaker wear DR Disturbance recorder 21FL Fault locator U1 2 47 27P 59PN 4 Current based 7 2 Application example and its connections This chapter presents an application example ...

Page 374: ...aker status while the digital outputs are used for breaker control Figure 7 2 239 Application example and its connections 7 3 Two phase three wire ARON input connection This chapter presents the two phase three wire ARON input connection for any AQ 200 series IED with a current transformer The example is for applications with protection CTs for just two phases The connection is suitable for both m...

Page 375: ...ough the IED s digital output and all the way to the open coil of the breaker It is recommended to supervise the health of the trip circuit when breaker is closed Trip circuit supervision with one digital input and one non latched trip output The figure below presents an application scheme for trip circuit supervision with one digital input and a non latched trip output With this connection the cu...

Page 376: ... be added to the digital input An activation delay that is slightly longer than the circuit breaker s operations time should be enough When circuit breaker failure protection CBFP is used adding its operation time to the digital input activation time is useful The whole digital input activation time is therefore tDI tCB tIEDrelease tCBFP The image below presents the necessary settings when using a...

Page 377: ...e IED s output relay contact opens in under 50 ms or after a set release delay that takes place after the breaker is opened This means that the open coil is energized for a while after the breaker has already opened The coil could even be energized a moment longer if the circuit breaker failure protection has to be used and the incomer performs the trip Trip circuit supervision with one digital in...

Page 378: ...closed again The following logic scheme or similar blocks the supervision alarm when the circuit breaker is open The alarm is issued whenever the breaker is closed and whenever the inverted digital input signal TCS activates A normally closed digital input activates only when there is something wrong with the trip circuit and the auxiliary power goes off Logical output can be used in the output ma...

Page 379: ...Figure 7 4 245 Example block scheme A AQ Q F205 F205 Instruction manual Version 2 04 Arcteq Relays Ltd IM00013 377 ...

Page 380: ... of the relay s hardware are fixed The relay includes the CPU module which consists of the CPU a number of inputs and outputs and the power supply as well as one current measurement module one voltage measurement module a digital input module DI8 and digital output module DO5 Figure 8 1 246 Modular construction of AQ F205 A AQ Q F205 F205 Instruction manual Version 2 04 378 Arcteq Relays Ltd IM000...

Page 381: ... nominal threshold voltage 24 V 110 V or 220 V X1 4 Common GND for digital inputs 1 2 and 3 X1 5 6 Output relay 1 with a normally open NO contact X1 7 8 Output relay 2 with a normally open NO contact X1 9 10 Output relay 3 with a normally open NO contact X1 11 12 Output relay 4 with a normally open NO contact X1 13 14 15 Output relay 5 with a changeover contact X1 16 17 18 System fault s output re...

Page 382: ...trol Device I O Digital input settings in the relay settings Table 8 2 264 Digital input settings Name Range Step Default Description DIx Polarity 0 NO Normally open 1 NC Normally closed 0 NO Selects whether the status of the digital input is 1 or 0 when the input is energized DIx Activation delay 0 000 1800 000 s 0 001 s 0 000 s Defines the delay for the status change from 0 to 1 DIx Drop off tim...

Page 383: ... input nominal current can be scaled for secondary currents of 1 10 A The secondary currents are calibrated to nominal currents of 1 A and 5 A which provide 0 5 inaccuracy when the range is 0 005 4 In The measurement ranges are as follows Phase currents 25 mA 250 A RMS Coarse residual current 5 mA 150 A RMS Fine residual current 1 mA 75 A RMS The characteristics of phase current inputs are as foll...

Page 384: ...minal voltage can be set between 100 400 V Voltages are calibrated in a range of 0 240 V which provides 0 2 inaccuracy in the same range The voltage input characteristics are as follows The measurement range is 0 5 480 0 V per channel The angle measurement inaccuracy is less than 0 5 degrees within the nominal range The frequency measurement range of the voltage inputs is 6 1800 Hz with standard h...

Page 385: ...stallation when required The properties of the inputs in this module are the same as those of the inputs in the main processor module The current consumption of the digital inputs is 2 mA when activated while the range of the operating voltage is from 0 265 VAC DC The activation and release thresholds are set in the software and the resolution is 1 V All digital inputs are scannced in 5 ms program...

Page 386: ...0 000 s 0 001 s 0 000 s Defines the delay when the status changes from 0 to 1 DIx Drop off time 0 000 1800 000 s 0 001 s 0 000 s Defines the delay when the status changes from 1 to 0 DIx AC Mode 0 Disabled 1 Enabled 0 Disabled Selects whether or not a 30 ms deactivation delay is added to take the alternating current into account The DIx Release threshold parameter is hidden and forced to 10 of the...

Page 387: ...Digital input voltages Table 8 5 266 Digital input channel voltage measurement Name Range Step Description DIx Voltage now 0 000 275 000 V 0 001 V Voltage measurement of a digital input channel 8 6 Digital output module optional Figure 8 6 252 Digital output module DO5 with five add on digital outputs Connector Description X 1 2 OUTx 1 1st and 2nd pole NO X 3 4 OUTx 2 1st and 2nd pole NO A AQ Q F2...

Page 388: ...DC For the naming convention of the digital inputs provided by this module please refer to the chapter titled Construction and installation For technical details please refer to the chapter titled Digital output module in the Technical data section of this document 8 7 Dimensions and installation The device can be installed either to a standard 19 rack or to a switchgear panel with cutouts The des...

Page 389: ...Figure 8 7 254 Device installation A AQ Q F205 F205 Instruction manual Version 2 04 Arcteq Relays Ltd IM00013 387 ...

Page 390: ...Figure 8 7 255 Panel cutout dimensions and device spacing A AQ Q F205 F205 Instruction manual Version 2 04 388 Arcteq Relays Ltd IM00013 ...

Page 391: ...equency measurement range From 6 75Hz fundamental up to the 31st harmonic current Current measurement range 25 mA 250 A RMS Current measurement inaccuracy 0 005 4 000 IN 0 5 or 15 mA 4 20 IN 0 5 20 50 IN 1 0 Angle measurement inaccuracy 0 2 I 0 1 A 1 0 I 0 1 A Burden 50 60 Hz 0 1 VA Transient overreach 8 Coarse residual current input I01 Rated current IN 1 A configurable 0 1 10 A Thermal withstand...

Page 392: ...reach 5 Terminal block connection Terminal block Phoenix Contact FRONT 4 H 6 35 Solid or stranded wire Maximum wire diameter 4 mm2 NO NOTE TE Current measurement accuracy has been verified with 50 60 Hz The amplitude difference is 0 2 and the angle difference is 0 5 degrees higher at 16 67 Hz and other frequencies 9 1 1 2 Voltage measurement Table 9 1 1 2 268 Technical data for the voltage measure...

Page 393: ... 1 1 3 Power and energy measurement Table 9 1 1 3 269 Power and energy measurement accuracy Power measurements P Q S Frequency range 6 75 Hz Inaccuracy 0 3 1 2 IN or 3 VA of secondary 1 0 1 2 IN or 3 VA of secondary Energy measurement Frequency range 6 75 Hz Energy and power metering inaccuracy 0 5 S 50 60Hz as standard 9 1 1 4 Frequency measurement Table 9 1 1 4 270 Frequency measurement accuracy...

Page 394: ... connection Terminal block Phoenix Contact MSTB 2 5 5 ST 5 08 Solid or stranded wire Maximum wire diameter 2 5 mm2 9 1 2 2 CPU communication ports Table 9 1 2 2 273 Front panel local communication port Port Port media Copper Ethernet RJ 45 Number of ports 1 Port protocols PC protocols FTP Telnet Features Data transfer rate 100 MB System integration Cannot be used for system protocols only for loca...

Page 395: ...e 9 1 2 3 276 CPU model isolated digital inputs with thresholds defined by order code Rated values Rated auxiliary voltage 265 V AC DC Nominal voltage Order code defined 24 110 220 V AC DC Pick up threshold Release threshold Order code defined 19 90 170 V Order code defined 14 65 132 V Scanning rate 5 ms Settings Pick up delay Software settable 0 1800 s Polarity Software settable Normally On Norma...

Page 396: ... 278 Digital outputs Change Over Rated values Rated auxiliary voltage 265 V AC DC Continuous carry 5 A Make and carry 0 5 s Make and carry 3 s 30 A 15 A Breaking capacity DC L R 40 ms at 48 VDC at 110 VDC at 220 VDC 1 A 0 4 A 0 2 A Control rate 5 ms Settings Polarity Software settable Normally On Normally Off Terminal block connection Terminal block Phoenix Contact MSTB 2 5 5 ST 5 08 Solid or stra...

Page 397: ...he digital output module Rated values Rated auxiliary voltage 265 V AC DC Continuous carry 5 A Make and carry 0 5 s Make and carry 3 s 30 A 15 A Breaking capacity DC L R 40 ms at 48 VDC at 110 VDC at 220 VDC 1 A 0 4 A 0 2 A Control rate 5 ms Settings Polarity Software settable Normally On Normally Off Terminal block connection Terminal block Phoenix Contact MSTB 2 5 5 ST 5 08 Solid or stranded wir...

Page 398: ...tep 0 005 s Inaccuracy Definite time Im Iset ratio 3 Definite time Im Iset ratio 1 05 3 1 0 or 20 ms 1 0 or 30 ms IDMT setting parameters k Time dial setting for IDMT A IDMT constant B IDMT constant C IDMT constant 0 01 25 00 step 0 01 0 250 0000 step 0 0001 0 5 0000 step 0 0001 0 250 0000 step 0 0001 Inaccuracy IDMT operating time IDMT minimum operating time 1 5 or 20 ms 20 ms Retardation time ov...

Page 399: ...ing time setting 0 00 1800 00 s setting step 0 005 s Inaccuracy Definite time Im Iset ratio 3 Definite time Im Iset ratio 1 05 3 1 0 or 20 ms 1 0 or 30 ms IDMT setting parameters k Time dial setting for IDMT A IDMT constant B IDMT constant C IDMT constant 0 01 25 00 step 0 01 0 250 0000 step 0 0001 0 5 0000 step 0 0001 0 250 0000 step 0 0001 Inaccuracy IDMT operating time IDMT minimum operating ti...

Page 400: ... operating time setting 0 00 1800 00 s setting step 0 005 s Inaccuracy Definite time Im Iset ratio 3 Definite time Im Iset ratio 1 05 3 1 0 or 20 ms 1 0 or 35 ms IDMT setting parameters k Time dial setting for IDMT A IDMT constant B IDMT constant C IDMT constant 0 01 25 00 step 0 01 0 250 0000 step 0 0001 0 5 0000 step 0 0001 0 250 0000 step 0 0001 Inaccuracy IDMT operating time IDMT minimum opera...

Page 401: ...step 0 001 In 1 00 75 00 U0n setting step 0 01 U0n Inaccuracy Starting I01 1 A Starting I02 0 2 A Starting I0Calc 5 A Voltage U0 and U0Calc U0 I0 angle U 15 V U0 I0 angle U 1 15 V 0 5 I0set or 3 mA 0 005 10 0 Iset 1 5 I0set or 1 0 mA 0 005 25 0 Iset 1 5 I0set or 15 mA 0 005 4 0 Iset 1 0 U0set or 30 mV 0 2 I0Calc 1 0 1 0 Operation time Definite time function operating time setting 0 00 1800 00 s se...

Page 402: ...t ratio 1 05 1 5 or 60 ms IDMT setting parameters k Time dial setting for IDMT A IDMT Constant B IDMT Constant C IDMT Constant 0 01 25 00 step 0 01 0 250 0000 step 0 0001 0 5 0000 step 0 0001 0 250 0000 step 0 0001 Inaccuracy IDMT operating time IDMT minimum operating time 2 0 or 30 ms 20 ms Retardation time overshoot 5 ms Instant operation time Start time and instant operation time trip Im Iset r...

Page 403: ... Harmonics generally The amplitude of the harmonic content has to be least 0 02 IN when the relative mode Ih IL is used Blocking To achieve fast activation for blocking purposes with the harmonic overcurrent stage note that the harmonic stage may be activated by a rapid load change or fault situation An intentional activation lasts for approximately 20 ms if a harmonic component is not present The...

Page 404: ...a for the restricted earth fault cable end differential function Measurement inputs Current inputs Phase current inputs IL1 A IL2 B IL3 C Residual current channel I01 Coarse Residual current channel I02 Fine Current input calculations Calculated bias and residual differential currents Pick up Operating modes Restricted earth fault Cable end differential Characteristics Biased differential with 3 s...

Page 405: ...imum operating time 1 5 or 20 ms 20 ms Instant operation time Start time and instant operation time trip UM USET ratio 1 05 50 ms Reset Reset ratio 97 of the pick up voltage setting Reset time setting Inaccuracy Reset time 0 010 10 000 s step 0 005 s 1 0 or 45 ms Instant reset time and start up reset 50 ms 9 2 1 10 Undervoltage protection U 27 Table 9 2 1 10 291 Technical data for the undervoltage...

Page 406: ...s not in use when its pick up setting is set to 0 The undervoltage function is in trip stage when the LV block is disabled and the device has no voltage injection After the low voltage blocking condition the undervoltage stage does not trip unless the voltage exceeds the pick up setting first 9 2 1 11 Neutral overvoltage protection U0 59N Table 9 2 1 11 292 Technical data for the neutral overvolta...

Page 407: ... UL12 UL23 UL31 U0 Voltage input calculations Positive sequence voltage I1 Negative sequence voltage I2 Pick up Pick up setting 5 00 150 00 UN setting step 0 01 UN Inaccuracy Voltage 1 5 USET or 30 mV Low voltage block Pick up setting 1 00 80 00 UN setting step 0 01 UN Inaccuracy Voltage 1 5 USET or 30 mV Operation time Definite time function operating time setting 0 00 1800 00 s setting step 0 00...

Page 408: ...s max step size 100 mHz Instant operation time Start time and instant operation time trip IM ISET ratio 50 mHz Fixed IM ISET ratio 50 mHz Tracking 70 ms max step size 100 mHz 3 cycles or 60 ms max step size 100 mHz Reset Reset ratio 0 020 Hz Instant reset time and start up reset IM ISET ratio 50 mHz Fixed IM ISET ratio 50 mHz Tracking 110 ms max step size 100 mHz 3 cycles or 70 ms max step size 10...

Page 409: ...e and start up reset fM fSET ratio 50 mHz 2 cycles or 60 ms max step size 100 mHz No Not te e The frequency is measured two seconds after a signal is received 9 2 1 15 Line thermal overload protection TF 49F Table 9 2 1 15 296 Technical data for the line thermal overload protection function Measurement inputs Current inputs Phase current inputs IL1 A IL2 B IL3 C Current input magnitudes TRMS phase...

Page 410: ...and instant operation time trip PM PSET ratio 1 05 50 ms Reset Reset ratio 97 or 103 PSET Reset time setting Inaccuracy Reset time 0 000 150 000 s step 0 005 s 1 0 or 35 ms Instant reset time and start up reset 50 ms No Not te e Voltage measurement starts from 0 5 V and current measurement from 50 mA In case either or both are missing the power measurement is forced to 0 kW If the settings allow i...

Page 411: ...ation time Angle memory activation delay 20 ms typically 5 ms Maximum active time 0 020 50 000 s setting step 0 005 s Inaccuracy Definite time UM USET ratio 1 05 1 0 or 35 ms Angle memory Angle drift while voltage is absent 1 0 per 1 second Reset Reset ratio Voltage memory voltage Voltage memory current 103 of the pick up voltage setting 97 of the pick up current setting Reset time 50 ms Note Volt...

Page 412: ...uto reclosing See the technical sheet for the auto reclosing function 9 2 2 3 Auto reclosing 0 1 79 Table 9 2 2 3 302 Technical data for the auto reclosing function Input signals Input signals Software signals protection logics etc Binary inputs Requests REQ1 5 5 priority request inputs can be set parallel as signals to each request Shots 1 5 shots 5 independent or scheme controlled shots in each ...

Page 413: ... 0 000 1800 000 s setting step 0 005 s Inaccuracy Definite time IM ISET ratio 1 05 0 95 1 0 or 45 ms Instant operation time CLPU activation and release 45 ms measured from the trip contact No Not te e A single phase current IL1 IL2 or IL3 is enough to prolong or release the blocking during an overcurrent condition 9 2 2 5 Switch on to fault SOTF Table 9 2 2 5 304 Technical data for the switch on t...

Page 414: ...imit U dead limit 0 10 100 00 UN setting step 0 01 UN 0 00 100 00 UN setting step 0 01 UN No Not te e Voltage is scaled to the primary amplitude therefore the different sized PT secondaries are possible The minimum voltage for direction and frequency solving is 20 0 UN U dead limit is not in use when set to 0 UN When SYN3 is used SYN1 and SYN2 must have the same reference voltage In 3LN mode the s...

Page 415: ... in differential protection relays 9 2 3 2 Voltage transformer supervision 60 Table 9 2 3 2 307 Technical data for the voltage transformer supervision function Measurement inputs Voltage inputs UL1 UL2 UL3 UL12 UL23 UL31 Voltage input magnitudes RMS line to line or line to neutral voltages Pick up Pick up settings Voltage low pick up Voltage high pick up Angle shift limit 0 05 0 50 UN setting step...

Page 416: ...n counter 0 1 IN I 2 IN 0 2 of the measured current rest 0 5 0 5 of operations deducted 9 2 3 4 Total harmonic distortion Table 9 2 3 4 309 Technical data for the total harmonic distortion function Input signals Current inputs Phase current inputs IL1 A IL2 B IL3 C Residual current channel I01 Coarse Residual current channel I02 Fine Current input magnitudes Current measurement channels FFT result...

Page 417: ...time At least 0 040 s of stage operation time required 9 2 3 6 Disturbance recorder Table 9 2 3 6 311 Technical data for the disturbance recorder function Recorded values Recorder analog channels 0 20 channels Freely selectable Recorder digital channels 0 95 channels Freely selectable analog and binary signals 5 ms sample rate FFT Performance Sample rate 8 16 32 or 64 samples cycle Recording lengt...

Page 418: ... f 150 kHz 80 MHz 10 V RMS Table 9 3 313 Voltage tests Dielectric voltage test EN 60255 27 IEC 60255 5 EN 60255 1 2 kV AC 50 Hz 1 min Impulse voltage test EN 60255 27 IEC 60255 5 5 kV 1 2 50 µs 0 5 J Physical environment compatibility Table 9 3 314 Mechanical tests Vibration test EN 60255 1 EN 60255 27 IEC 60255 21 1 Class 1 2 13 2 Hz 3 5 mm 13 2 100 Hz 1 0 g Shock and bump test EN 60255 1 EN 6025...

Page 419: ...0 C Other Altitude 2000 m Overvoltage category III Pollution degree 2 Casing and package Table 9 3 317 Dimensions and weight Without packaging net Dimensions Height 117 mm 4U Width 127 mm rack Depth 174 mm no cards connectors Weight 1 5 kg With packaging gross Dimensions Height 170 mm Width 242 mm Depth 219 mm Weight 2 kg A AQ Q F205 F205 Instruction manual Version 2 04 Arcteq Relays Ltd IM00013 4...

Page 420: ...d Co Ltd ADAM 4018 BE External 8 ch Thermocouple mA Input module pre configured Requires an external power module Advanced Co Ltd AQX033 Raising frame 87 mm Arcteq Ltd AQX070 Raising frame 40 mm Arcteq Ltd AQX069 Combiflex frame Arcteq Ltd AQX097 Wall mounting bracket Arcteq Ltd AQ 01A Light point sensor unit 8 000 lux threshold Max cable length 200 m Arcteq Ltd A AQ Q F205 F205 Instruction manual...

Page 421: ...nd postal address Kvartsikatu 2 A 1 65300 Vaasa Finland Contacts Phone 358 10 3221 370 Website arcteq fi Technical support support arcteq fi 358 10 3221 388 EET 9 00 17 00 E mail sales sales arcteq fi A AQ Q F205 F205 Instruction manual Version 2 04 Arcteq Relays Ltd IM00013 419 ...

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