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5.2 Measurements

5.2.1 Current measurement and scaling

The current measurement module (CT module, or CTM) is used for measuring the currents from

current transformers. The measured values are processed into the measurement database and they

are used by measurement and protection functions. It is essential to understand the concept of current

measurements to be able to get correct measurements.

Figure. 5.2.1 - 2. Current measurement terminology

PPRI:

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.

NOM:

NOM: The nominal primary current of the protected object.

Q-M255

-M255

Instruction manual

Version: 2.06

Содержание AQ-M255

Страница 1: ...AQ M255 Motor protection IED Instruction manual...

Страница 2: ......

Страница 3: ...2BF 106 5 3 9 Low impedance or high impedance restricted earth fault cable end differential protection I0d 87N 121 5 3 10 Overvoltage protection U 59 130 5 3 11 Undervoltage protection U 27 137 5 3 12...

Страница 4: ...dule 386 8 3 Current measurement module 388 8 4 Voltage measurement module 389 8 5 Digital input module optional 390 8 6 Digital output module optional 393 8 7 Point sensor arc protection module optio...

Страница 5: ...ection f 81O 81U 424 9 2 1 14 Rate of change of frequency protection df dt 81R 425 9 2 1 15 Machine thermal overload protection TM 49M 425 9 2 1 16 Power protection P Q S 32 426 9 2 1 17 Motor start l...

Страница 6: ...e 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 instruc...

Страница 8: ...k 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 Added display sleep timer description C...

Страница 9: ...Changed disturbance recorder maximum digital channel amount from 32 to 95 Added residual current coarse and fine measurement data to disturbance recorder description Event read mode parameter added to...

Страница 10: ...p mode description Improved alarm function color behavior description and images Added operation time with different measurement values vs setting ratio in instant operation mode to non directional ov...

Страница 11: ...s revised on several functions RTD mA card description improvements Ring lug CT card option description added Fault view description added New U and U function measurement modes documented Order code...

Страница 12: ...t 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 Fundament...

Страница 13: ...S 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 faul...

Страница 14: ...tor protection IED For other AQ 200 series products please consult their respective device manuals AQ M255 offers a modular motor protection and control solution for motors with a large I O capacity T...

Страница 15: ...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 the O O buttons 4 The...

Страница 16: ...utton test menu It displays all the physical buttons on the front panel Pressing any of the listed buttons marks them as tested When all buttons are marked as having been tested the device will return...

Страница 17: ...evels are divided as follows User Can view any menus and settings but cannot change any settings nor operate breakers or other equipment Operator Can view any menus and settings but cannot change any...

Страница 18: ...al 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...

Страница 19: ...s PQS 4 P Q S P Q S P Q S P Q S 32 Power protection PGS 1 PGx 99 Programmable stage VMEM 1 Voltage memory ARC 1 IArc I0Arc 50Arc 50NArc Arc fault protection optional Table 5 1 4 Control functions of A...

Страница 20: ...nt measurements to be able to get correct measurements Figure 5 2 1 2 Current measurement terminology P PRI RI The primary current i e the current which flows in the primary circuit and through the pr...

Страница 21: ...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 a...

Страница 22: ...r 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 4 Setting the phase current transformer scalings to CT nominal Once the setting have...

Страница 23: ...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...

Страница 24: ...them when the protected object s nominal current is the basis for the scaling Figure 5 2 1 8 Scalings display based on the CT nominal Figure 5 2 1 9 Scalings display based on the protected object s n...

Страница 25: ...ondary 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 i...

Страница 26: ...urement 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 w...

Страница 27: ...roblems 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 mea...

Страница 28: ...L2 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 t...

Страница 29: ...low 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...

Страница 30: ...p 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 curren...

Страница 31: ...current Table 5 2 1 19 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...

Страница 32: ...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 IL...

Страница 33: ...to neutral voltage When connecting voltage directly measuring mode must be set to 3LN U4 mode The rated primary and secondary voltages of the VT need to be set for the relay to know the primary and pe...

Страница 34: ...se 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...

Страница 35: ...ge 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 Fi...

Страница 36: ...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...

Страница 37: ...ubleshooting 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 ampli...

Страница 38: ...e 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...

Страница 39: ...ing 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 rela...

Страница 40: ...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 seque...

Страница 41: ...his 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...

Страница 42: ...2 33 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 Syste...

Страница 43: ...armonics 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 curr...

Страница 44: ...rection The direction of active power can be indicated with the power factor Cos or Cosine phi which is calculated according the following formula The direction of reactive power is divided into four...

Страница 45: ...os and tan 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 scali...

Страница 46: ...es 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 aft...

Страница 47: ...cards are available Table 5 2 3 38 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 3P...

Страница 48: ...xported 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 exp...

Страница 49: ...ported 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...

Страница 50: ...PH 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 li...

Страница 51: ...en 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 measuremen...

Страница 52: ...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...

Страница 53: ...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 va...

Страница 54: ...un in a completely digital environment with a protection CPU microprocessor which also processes the analog signals transformed into the digital form A AQ Q M255 M255 Instruction manual Version 2 06 5...

Страница 55: ...tage 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...

Страница 56: ...tion 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 commissi...

Страница 57: ...or 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...

Страница 58: ...y 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...

Страница 59: ...es The setting parameters and their ranges are documented in the chapters of the respective function blocks Table 5 3 1 45 Inverse operating time formulas for nonstandard characteristics RI type RD ty...

Страница 60: ...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...

Страница 61: ...ck up release delay counter is reset at signal drop off Figure 5 3 1 31 Delayed pick up release delay counter value is held during the release time A AQ Q M255 M255 Instruction manual Version 2 06 Arc...

Страница 62: ...ion 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 al...

Страница 63: ...ion 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...

Страница 64: ...eak measurement of phase L2 B current 5ms IL3PP Peak to peak measurement of phase L3 C current 5ms The selection of the used AI channel is made with a setting parameter In all possible input channel v...

Страница 65: ...s Live Edit mode is active Table 5 3 2 50 Information displayed by the function Name Range Step Description I LN behaviour 1 On 2 Blocked 3 Test 4 Test Blocked 5 Off Displays the mode of NOC block Thi...

Страница 66: ...rocess 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 re...

Страница 67: ...fers 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 2 52 Event...

Страница 68: ...A Trip ON NOC2 Phase A Trip OFF NOC2 Phase B Trip ON NOC2 Phase B Trip OFF NOC2 Phase C Trip ON NOC2 Phase C Trip OFF NOC3 Start ON NOC3 Start OFF NOC3 Trip ON NOC3 Trip OFF NOC3 Block ON NOC3 Block...

Страница 69: ...rrent Start Trip current Start 200ms current 0 ms 1800s Setting group 1 8 active 5 3 3 Non directional earth fault protection I0 50N 51N The non directional earth fault function is used for instant an...

Страница 70: ...selections setting parameters digital inputs and logic signals measured and pre processed current magnitudes The function s outputs are START TRIP and BLOCKED signals which can be used for direct I O...

Страница 71: ...rent from the three phase currents 5 ms The selection of the used AI channel is made with a setting parameter In all possible input channel variations the pre fault condition is presented with a 20 ms...

Страница 72: ...n 2 Blocked 3 Test 4 Test Blocked 5 Off Displays the mode of NEF block This parameter is visible only when Allow setting of individual LN mode is enabled in General menu I0 condition 0 Normal 1 Start...

Страница 73: ...up 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 ac...

Страница 74: ...800s 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 short circuits A device with bo...

Страница 75: ...tion are the following operating mode selections setting parameters digital inputs and logic signals measured and pre processed current magnitudes The function s outputs are START TRIP and BLOCKED sig...

Страница 76: ...rement 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...

Страница 77: ...1 angle If the U1voltage is not available and only line to line voltages are measured the reference angle is based on a healthy line to line voltage During a short circuit the reference angle is based...

Страница 78: ...sible to perform a trip when the 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 referenc...

Страница 79: ...of individual LN mode is enabled in General menu Operating angle now 360 00 360 00deg 0 01deg The positive sequence current angle in relation to the positive sequence voltage Expected operating time...

Страница 80: ...ormation 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 Enabl...

Страница 81: ...ng OFF DOC2 Measuring live angle ON DOC2 Measuring live angle OFF DOC2 Using voltmem ON DOC2 Using voltmem OFF DOC3 Start ON DOC3 Start OFF DOC3 Trip ON DOC3 Trip OFF DOC3 Block ON DOC3 Block OFF DOC3...

Страница 82: ...ed 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 val...

Страница 83: ...e following figure presents a simplified function block diagram of the directional earth fault function Figure 5 3 5 40 Simplified function block diagram of the I0dir function Measured input The funct...

Страница 84: ...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...

Страница 85: ...ed 32N Var 2 Petersen coil GND 32N Watt 3 Grounded 67N 4 I0Cos I0Sin broad range with MCD 32N Var Watt 1 Unearthed Multi criteria detection Activation of detecting healthy or unhealthy feeder by analy...

Страница 86: ...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 t...

Страница 87: ...etersen 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 the...

Страница 88: ...ully 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 incomi...

Страница 89: ...de 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 p...

Страница 90: ...ts 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 t...

Страница 91: ...against I0 CT errors in compensated long healthy lines Figure 5 3 5 45 Effect of angle divider when in use and when disabled To receive a more accurate indication as to whether the fault was in a comp...

Страница 92: ...ccurs When IDMT mode is used the expected operating time depends on the measured current value If the measured current changes during a fault the expected operating time changes accordingly Time remai...

Страница 93: ...ion and its section Operating time characteristics for trip and reset Events and registers The directional overcurrent function abbreviated DEF in event block names generates events and registers from...

Страница 94: ...Start ON DEF3 I0Cosfi Start OFF DEF3 I0Sinfi Start ON DEF3 I0Sinfi Start OFF DEF3 I0Cosfi Trip ON DEF3 I0Cosfi Trip OFF DEF3 I0Sinfi Trip ON DEF3 I0Sinfi Trip OFF DEF4 Start ON DEF4 Start OFF DEF4 Tri...

Страница 95: ...tudes which the function constantly measures In the broken conductor mode I2 I1 the minimum allowed loading current is also monitored in the phase current magnitudes There are two possible operating m...

Страница 96: ...ents a simplified function block diagram of the current unbalance function Figure 5 3 6 46 Simplified function block diagram of the I2 function Measured input The function block uses analog current me...

Страница 97: ...pick up of the I2 function They define the maximum allowed measured negative sequence current or the negative positive sequence current ratio before action from the function The function constantly ca...

Страница 98: ...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...

Страница 99: ...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...

Страница 100: ...egisters its operation into the last twelve 12 time stamped registers The register of the function records the ON event process data for START TRIP or BLOCKED The table below presents the structure of...

Страница 101: ...situation lasts longer the TRIP signal can be used on other actions as time delayed The IDMT operation supports both IEC and ANSI standard time delays as well as custom parameters The operational logi...

Страница 102: ...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 Mea...

Страница 103: ...ent 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...

Страница 104: ...pre fault condition is presented with a 20 ms averaged history value from 20 ms from START or TRIP event General settings The function can be set to monitor the ratio between the measured harmonic and...

Страница 105: ...e pick up of the Ih function This defines the maximum allowed measured current before action from the function The function constantly calculates the ratio between the Ihset per unitor Ih IL and the m...

Страница 106: ...nal 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 proce...

Страница 107: ...vent block name Event names HOC1 Start ON HOC1 Start OFF HOC1 Trip ON HOC1 Trip OFF HOC1 Block ON HOC1 Block OFF HOC2 Start ON HOC2 Start OFF HOC2 Trip ON HOC2 Trip OFF HOC2 Block ON HOC2 Block OFF HO...

Страница 108: ...ut relay control signal 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...

Страница 109: ...S measurement of phase L3 C current 5ms I01RMS RMS measurement of residual input I01 5ms I02RMS RMS measurement of residual input I02 5ms I0Calc Calculated residual current from the phase current inpu...

Страница 110: ...minimum allowed measured current before action from the function The function constantly calculates the ratio between the Iset or the I0set and the measured magnitude Im for each of the three phases a...

Страница 111: ...is enabled in General menu CBFP condition 0 Normal 1 Start 2 ReTrip 3 CBFP On 4 Blocked Displays status of the protection function Function blocking The block signal is checked in the beginning of ea...

Страница 112: ...haracteristics Table 5 3 8 93 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 t...

Страница 113: ...vailable 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 redund...

Страница 114: ...s 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 ti...

Страница 115: ...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 no...

Страница 116: ...ns 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 act...

Страница 117: ...st 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 th...

Страница 118: ...ating 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 brea...

Страница 119: ...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...

Страница 120: ...g 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 CBF...

Страница 121: ...e configuration as a dedicated CBFP unit Figure 5 3 8 58 Wiring diagram when the device is configured as a dedicated CBFP unit A AQ Q M255 M255 Instruction manual Version 2 06 Arcteq Relays Ltd IM0002...

Страница 122: ...ital input signal Both current and output 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 use...

Страница 123: ...urement 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 s...

Страница 124: ...gram 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 meas...

Страница 125: ...racteristics The current dependent pick up and activation of the function are controlled by setting parameters which define the current calculating method used as well as the operating characteristics...

Страница 126: ...eneration of the function The TRIP signal is allowed if the blocking condition is not active The following figure presents the differential characteristics with default settings Figure 5 3 9 61 Differ...

Страница 127: ...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...

Страница 128: ...d 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...

Страница 129: ...t 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 ins...

Страница 130: ...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...

Страница 131: ...s 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 tr...

Страница 132: ...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...

Страница 133: ...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 10 102 Measurement input of the U...

Страница 134: ...h a 20 ms averaged history value from 20 ms from START or TRIP event Figure 5 3 10 70 Selectable measurement magnitudes with 3LN U4 VT connection Figure 5 3 10 71 Selectable measurement magnitudes wit...

Страница 135: ...Off 0 On Set mode of OV block This parameter is visible only when Allow setting of individual LN mode is enabled in General menu Pick up The Uset setting parameter controls the pick up of the U functi...

Страница 136: ...counts down time towards a trip this displays how much time is left before tripping occurs UA B meas Uset at the moment 0 00 1250 00Um Uset 0 01Um Uset The ratio between UA or UAB voltage and the pic...

Страница 137: ...ick up voltage Uset and the measured voltage Um dependent time characteristics The IDMT function follows this formula Where t operating time k time dial setting Um measured voltage Us pick up setting...

Страница 138: ...ounter is continuing until a set release time has passed even if the pick up element is reset The user can reset characteristics through the application The default setting is a 60 ms delay the time c...

Страница 139: ...line voltage magnitudes Undervoltage protection is based on line to line voltages or to line to neutral voltages as the user selects If the protection is based on line to line voltage undervoltage pro...

Страница 140: ...r for the START TRIP and BLOCKED events The following figure presents a simplified function block diagram of the undervoltage function Figure 5 3 11 73 Simplified function block diagram of the U funct...

Страница 141: ...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 f...

Страница 142: ...block This parameter is visible only when Allow setting of individual LN mode is enabled in General menu Pick up The Uset setting parameter controls the pick up of the U function This defines the mini...

Страница 143: ...11 115 Information displayed by the function Name Range Step Description U LN behaviour 1 On 2 Blocked 3 Test 4 Test Blocked 5 Off Displays the mode of UV block This parameter is visible only when Al...

Страница 144: ...nt 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 swit...

Страница 145: ...ower Table 5 3 11 117 Setting parameters for reset time characteristics Name Range Step Default Description Release time delay 0 000 150 000s 0 005s 0 06s Resetting time The time allowed between pick...

Страница 146: ...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 11 118 Event messages Event block name Ev...

Страница 147: ...group 1 8 active 5 3 12 Neutral overvoltage protection U0 59N The neutral overvoltage function is used for non directional instant and time delayed earth fault protection Each device with a voltage pr...

Страница 148: ...mon source The function can operate on instant or time delayed mode In the time delayed mode the operation can be selected for definite time DT or for inverse definite minimum time IDMT the IDMT opera...

Страница 149: ...og voltage measurement values The function block uses RMS values A 20 ms averaged value of the selected magnitude is used for pre fault data registering Table 5 3 12 120 Measurement inputs of the U0 f...

Страница 150: ...0 Un 0 01 Un 20 00 Un 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 Re...

Страница 151: ...f 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 th...

Страница 152: ...000 150 000s 0 005s 0 06s Resetting time Time allowed between pick ups if the pick up has not led to a trip operation During this time the START signal is held on for the timers if the delayed pick up...

Страница 153: ...art ON NOV1 Start OFF NOV1 Trip ON NOV1 Trip OFF NOV1 Block ON NOV1 Block OFF NOV2 Start ON NOV2 Start OFF NOV2 Trip ON NOV2 Trip OFF NOV2 Block ON NOV2 Block OFF NOV3 Start ON NOV3 Start OFF NOV3 Tri...

Страница 154: ...arth voltage magnitudes or line to line and neutral voltage magnitudes to calculate the positive or negative sequence voltage The user can select the voltage used Sequence voltage is based on the syst...

Страница 155: ...age 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 nega...

Страница 156: ...function are the following operating mode selections setting parameters digital inputs and logic signals measured and pre processed voltage magnitudes The function s outputs are START TRIP and BLOCKED...

Страница 157: ...tage U3 V 5ms In RMS values the pre fault condition is presented with 20 ms averaged history value from 20 ms of START or TRIP event General settings The following general settings define the general...

Страница 158: ...er 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 th...

Страница 159: ...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 p...

Страница 160: ...t without 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...

Страница 161: ...he sequence voltage function abbreviated VUB 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 i...

Страница 162: ...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 as heating due to increased iron losses...

Страница 163: ...time stamp resolution is 1 ms The function also provides a resettable cumulative counter for the START TRIP and BLOCKED events The following figures present simplified function block diagrams of the...

Страница 164: ...1 No 2 Yes 0 No Enables or disables the stage Pick up and time delay The fset fset etc setting parameters control the pick up of each stage of the f function They define the maximum or minimum allowed...

Страница 165: ...e is active Table 5 3 14 138 Information displayed by the function Name Range Step Description f LN behaviour 1 On 2 Blocked 3 Test 4 Test Blocked 5 Off Displays the mode of FRQV block This parameter...

Страница 166: ...of 5 ms before the set operating delay has passed in order for the blocking to activate in time Events and registers The frequency function abbreviated FRQV in event block names generates events and r...

Страница 167: ...of the function s register content Table 5 3 14 140 Register content Date and time Event f Pre trig Hz f Fault Hz Used SG dd mm yyyy hh mm ss mss Event name Start Trip 20ms frequency Fault frequency...

Страница 168: ...ove when the frequency decreases under the f limit tripping is allowed although the change of frequency is not yet fast enough for the function to trip Later the frequency makes a fast dip and as a re...

Страница 169: ...f dt function Measured input The rate of change of frequency protection function compares the measured df dt ratio to the pick up setting given in Hz s The source of the measured frequency depends on...

Страница 170: ...g mode df dt function can trip only from increasing frequency In Falling mode df dt function can trip only from decreasing frequency Both allows df dt to trip from both 0 Rising 1 Falling 2 Both 0 Ris...

Страница 171: ...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...

Страница 172: ...dt 4 Trip ON DFT1 df dt 4 Trip OFF DFT1 df dt 5 Start ON DFT1 df dt 5 Start OFF DFT1 df dt 5 Trip ON DFT1 df dt 5 Trip OFF DFT1 df dt 6 Start ON DFT1 df dt 6 Start OFF DFT1 df dt 6 Trip ON DFT1 df dt...

Страница 173: ...ster content Date and time Event df dt Pre trig Hz s f Pre trig Hz df dt Fault Hz s f Fault Hz Used SG dd mm yyyy hh mm ss mss Event name Start Trip 20ms df dt Start Trip 20ms frequency Fault df dt Fa...

Страница 174: ...uts and logic signals measured and pre processed power magnitudes The function s outputs are START TRIP and BLOCKED signals which can be used for direct I O controlling and user logic programming The...

Страница 175: ...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 16 148 General settings of the function Name...

Страница 176: ...ive Edit mode is active Table 5 3 16 150 Information displayed by the function Name Range Step Description PQS LN behaviour 1 On 2 Blocked 3 Test 4 Test Blocked 5 Off Displays the mode of PWR block Th...

Страница 177: ...r 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 activate in time Opera...

Страница 178: ...set up all necessary motor data and select the used motor protection functions Settings related to the protection functions can also be edited inside each function and any changes are updated into thi...

Страница 179: ...5 3 17 96 Simplified function block diagram of the motor status monitoring function The function s outputs are dependent on the motor data the user has set The following two diagram present the functi...

Страница 180: ...ad Normal signal If the current then starts rising and exceeds the Motor nominal current setting but does not exceed the Maximum overload current setting the Ov Overloading erloading signal is activat...

Страница 181: ...om activating and the motor from starting especially when the low set overcurrent stage has an operating time that is shorter than the start up time of the protected motor The figure above presents ho...

Страница 182: ...f a high overcurrent is detected during the start up process The user can choose to combine the high overcurrent detection with the NOC1_START signal with an AND gate and use the LOGIC_OUT2 signal for...

Страница 183: ...ed 0 1 40 0xIn 0 1xIn Motor status monitoring Machine thermal overload protection Tm 49M Motor start monitoring Ist 48 Undercurrent I 37 Load jam protection Im 51M The motor s nominal current scaled t...

Страница 184: ...Im 51M The motor s minimum locked rotor current This setting defines the current limit for when this current is exceeded while the automatic curve selection and the control only short time constant s...

Страница 185: ...this setting value the motor should run even when overloaded Max overload current A 0 1 5000A 0 1A Motor status monitoring Machine thermal overload protection Tm 49M Motor start monitoring Ist 48 Loa...

Страница 186: ...uses a hot stall curve when this setting value is exceeded This setting also applies to starts when the hot cold selection is in use Please note that using this setting requires that the Machine therm...

Страница 187: ...e when the measured current exceeds the Start detect current from the Motor stopped situation the signal deactivates when the current decreases below the Max overloading current Motor running 0 Not ac...

Страница 188: ...ent names MST1 Motor Stopped OFF MST1 Motor Starting ON MST1 Motor Starting OFF MST1 Motor Running ON MST1 Motor Running OFF MST1 Motor Stalled ON MST1 Motor Stalled OFF MST1 Load not symm ON MST1 Loa...

Страница 189: ...motor must be communicated to the Ist function The user can set both the allowed starting time and the speed switch input The speed switch may be required by some high mass applications when the start...

Страница 190: ...e status may affect the motor s starting time If the start up situation is supposed to always be the same a sufficient setting for the function s starting monitor would be the expected starting time w...

Страница 191: ...t may cause a situation where the starting is well in action but the user allowed time is spent due to the lower current and lower torque caused by the network s low voltage In this case the function...

Страница 192: ...ch applications a speed switch is required to know whether the start up is actually happening or whether the load is jammed and the motor is standing still with its rotor locked If the motor start up...

Страница 193: ...e situation if the motor stalls after it has started There are the signals Mechanical jam and Motor stalled available In the motor protection module and both can be used to direct the tripping of the...

Страница 194: ...f LCR block This parameter is visible only when Allow setting of individual LN mode is enabled in General menu ISt LN behaviour 1 On 2 Blocked 3 Test 4 Test Blocked 5 Off Displays the mode of LCR bloc...

Страница 195: ...ring Ist 48 14 Mechanical jam protection Im 51M The motor s locked rotor current with the nominal voltage This setting is used for automatic curve selection and calculation Also the nominal starting c...

Страница 196: ...ent This setting defines the current limit for when this current is exceeded while the automatic curve selection and the control only short time constant stall are in use Max locked rotor current 0 1...

Страница 197: ...the motor s thermal limit for hot and cold situations When this setting value is not exceed while a locked rotor situation occurs the function uses a cold stall curve adjusted with the actually used t...

Страница 198: ...setting which determines how long the function waits for the speed switch to give a signal since the starting of the motor If the speed switch is not activated during this set time the starting of th...

Страница 199: ...used from max safe stall time Percentage used from user set max time Thermal capacity used Phase L1 current x In Phase L2 current x In Phase L3 current x In Used setting group 5 3 19 Frequent start p...

Страница 200: ...Figure 5 3 19 107 Simplified function block diagram of the N function The operating principle of the frequent start protection function is to calculate an equivalent start stress in each start the ca...

Страница 201: ...ntil the motor can be started again The cumulative start up counter is updated constantly in each program cycle and the device shows the inhibit and alarm time as well as the number of used and availa...

Страница 202: ...on rate for hot starts Now if the motor were stopped in this situation the starts reduction would be counted according to cold motor status as the thermal load would reduce the count below the hot lim...

Страница 203: ...8 Load jam protection Im 50M Setting the motor s thermal limit in a hot or a cold situation When this setting value is not exceed while a locked rotor situation occurs the function uses a cold stall c...

Страница 204: ...or status monitoring Frequent start protection N 48 The number of hours when the parameters of the number of allowed starts hot and cold apply Min time betw starts 0 1 600 0s 0 1s 20 0s Motor status m...

Страница 205: ...nt function s output may be also used in an automation system to indicate that the device has finished its work load and is ready for a next task In order to operate this function requires motor runni...

Страница 206: ...veraged value of the selected magnitude is used for pre fault data registering Table 5 3 20 167 Measurement inputs of the I function Signal Description Time base IL1RMS RMS measurement of phase L1 A c...

Страница 207: ...37 Load jam protection Im 51M The motor s nominal current scaled to per unit If the user selects Object In in the CT settings this value should be 1 00 If scaled to the CT nominal this value may vary...

Страница 208: ...Expected operating time 0 000 1800 000s Displays the expected operating time when a fault occurs Function blocking The block signal is checked in the beginning of each program cycle The blocking sign...

Страница 209: ...from the feeding network in order to avoid further damage to the motor drive The function is active only after the motor has started and it is blocked during motor starting This is done through an in...

Страница 210: ...e Im function Measured input The function block uses analog current measurement values and uses RMS phase current measurements A 20 ms averaged value of the selected magnitude is used for pre fault da...

Страница 211: ...for all measured phases and when the Im exceeds the Iset value in single dual or all phases it triggers the pick up operation of the function Table 5 3 21 176 Motor data settings Name Range Step Defau...

Страница 212: ...locked rotor current 0 1 40 0xIn 0 1xIn 3 5xIn Motor status monitoring Machine thermal overload protection Tm 49M Motor start monitoring Ist 48 Load jam protection Im 51M The motor s minimum locked ro...

Страница 213: ...rmal overload protection Tm 49M Motor start monitoring Ist 48 Load jam protection Im 51M The maximum locked rotor current in amperes Max overload current 0 1 40 0xIn 0 1xIn 2 0xIn Motor status monitor...

Страница 214: ...d motor stall best case scenario This setting value is used for the cold thermal stall curve selection in automatic control This parameter is also used in the motor start up and the number of starts c...

Страница 215: ...ed 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 ti...

Страница 216: ...Event Fault type Pre trigger current Fault current Pre fault current Trip time remaining Used SG dd mm yyyy hh mm ss mss Event name L1 G L1 L2 L3 Start Trip 20ms current Start Trip current Start 200m...

Страница 217: ...sists of the following input magnitude selection input magnitude processing saturation check threshold comparator block signal check time delay characteristics output processing The inputs for the fun...

Страница 218: ...3 Simplified function block diagram of the PF function Measured input The function block uses power factor values A 20 ms averaged value of the selected magnitude is used for pre fault data registerin...

Страница 219: ...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 22 184 Information displayed by the function Name Range Step D...

Страница 220: ...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 This function supports definite time d...

Страница 221: ...ent in the object The thermal replica includes the calculated thermal capacity that the memory uses it is an integral function which tells apart this function from a normal overcurrent function and it...

Страница 222: ...e I1 Calculated positive sequence current of the measured RMS phase currents I2 Calculated negative sequence current of the measured RMS phase currents kNPS Correction factor of the NPS current biasin...

Страница 223: ...ambient temperature coefficient which is constantly calculated and changing when using RTD sensor for the measurement When the ambient temperature of the protected object is stable it can be set manua...

Страница 224: ...ure correction factor is 1 0 Figure 5 3 23 117 Ambient temperature coefficient calculation linear approximation three points This ambient temperature coefficient relates to a nominal reference tempera...

Страница 225: ...is decreased or increased instantly to minimum or maximum In practice this means that the thermal replica needs to have more settable time constants than one common constant for heating and cooling a...

Страница 226: ...below 0 C The heat conduction from the cable into the surrounding ground is the same regardless whether the cable is heating or cooling The composition of the soil defines how well the ground conduct...

Страница 227: ...ng overheated are required for the overall motor protection as it can cause insulator damage in the stator and melt the rotor bars Both of these faults result in the malfunction of the motor When cons...

Страница 228: ...agnetic field rotation and the rotor s magnetic field rotation decreases The rotor speeding up leads to the rotor current decreasing simultaneously decreasing the rotor heating This also makes the coo...

Страница 229: ...y the stator windings conduct the heat generated in the rotor during starting and into the motor s body This heat transfer rotor to stator stator to body also depends on the masses of motor s componen...

Страница 230: ...d motor is stopped The stopped motor cooling follows the same equation than heating with one exception when the surrounding air is not moving as the fan has stopped and the air temperature is increasi...

Страница 231: ...mes the thermal image needs to be adjusted and fine tuned for the application so that it matches the motor s actual temperature perfectly This is why the thermal replica needs to offer enough setting...

Страница 232: ...Figure 5 3 23 122 Measured motor temperature in heating cooling test A AQ Q M255 M255 Instruction manual Version 2 06 230 Arcteq Relays Ltd IM00020...

Страница 233: ...r With dynamically controlled cooling time constants the match is very accurate If this motor were used for cyclic loads with repeating cooling times the single time constant model would stretch into...

Страница 234: ...80 seconds and in hot situation approximately 67 seconds When the thermal limit curves are available the operation of the thermal replica can be set very accurately for both overloading and stall con...

Страница 235: ...Figure 5 3 23 125 Comparing single time constant thermal replica tripping curves to given motor thermal characteristics A AQ Q M255 M255 Instruction manual Version 2 06 Arcteq Relays Ltd IM00020 233...

Страница 236: ...withstand When dual time constants and dynamic time constants are in use the relay automatically selects the correct tripping curves for the thermal replica according to the settings producing therefo...

Страница 237: ...al tripping curves with single time constant pre load 0 cold Figure 5 3 23 128 Thermal tripping curves with single time constant pre load 90 hot A AQ Q M255 M255 Instruction manual Version 2 06 Arcteq...

Страница 238: ...dynamic time constants and correction factor pre load 0 cold Figure 5 3 23 130 Thermal tripping curves with dual dynamic time constants and correction factor pre load 90 hot A AQ Q M255 M255 Instructi...

Страница 239: ...3 23 131 Thermal cooling curves single cooling time constant Figure 5 3 23 132 Thermal cooling curves dynamic dual time constant A AQ Q M255 M255 Instruction manual Version 2 06 Arcteq Relays Ltd IM0...

Страница 240: ...triple time constant motor is running without load in the first part with dedicated time constant Figure 5 3 23 134 NPS biased thermal trip curves with kNPS value of 1 A AQ Q M255 M255 Instruction ma...

Страница 241: ...3 23 135 NPS biased thermal trip curves with kNPS value of 3 Figure 5 3 23 136 NPS biased thermal trip curves with kNPS value of 7 A AQ Q M255 M255 Instruction manual Version 2 06 Arcteq Relays Ltd IM...

Страница 242: ...ing thermal replica comparator block signal check output processing The inputs for the function are the following setting parameters measured and pre processed current magnitudes The function s output...

Страница 243: ...mperature measurement for the ambient correction 5ms Setting parameters Table 5 3 23 190 General settings not selectable under setting groups Name Range Default Description TM LN mode 1 On 2 Blocked 3...

Страница 244: ...start locked rotor monitoring Ist 48 14 non directional undercurrent protection I 37 mechanical jam protection Im 51M The motor s nominal current in amperes Nominal starting current 0 1 40 0xIn 0 1xI...

Страница 245: ...the automatic curve selection and the control only short time constant stall are in use Max locked rotor current 0 1 40 0xIn 0 1xIn 7 5xIn motor status monitoring machine thermal overload protection...

Страница 246: ...s no load current This setting defines the Stopped condition when the current is below this setting value Also when the current is below this value the undercurrent protection stage is locked No load...

Страница 247: ...is setting value is used for the cold thermal stall curve selection in automatic control This parameter is also used in the motor start up and the number of starts calculations Safe stall time hot 0 1...

Страница 248: ...cally this time constant is about 2 5 3 5 times the heating time constant Short heat T const cold 0 500 0min 1 0min 10 0min The setting for short heating time constant for cold motor status This time...

Страница 249: ...n 0 1min 30 0min The estimated setting for how long the short cooling time constant is used when the motor is stopped The cooling is typically faster right after the motor has stopped This setting val...

Страница 250: ...points for 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 th...

Страница 251: ...tivates 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 ti...

Страница 252: ...e been set wrong and actually used setting is 1 0 Visible only when there is a setting fault TM Setting alarm 0 Nominal current calc ok 1 Nominal current set fault Override to 1 0 Indicates if nominal...

Страница 253: ...number of times the function has activated the Alarm 2 output Restart inhibits The number of times the function has activated the Restart inhibit output Trips The number of times the function has tri...

Страница 254: ...es of motors generators and ambient temperatures Typically an RTD is a thermocouple or of type PT100 Up to three 3 separate RTD modules based on an external Modbus are supported each can hold up to ei...

Страница 255: ...set for each of the measurement channels Once these settings are done the RTDs are ready for other functions Figure 5 3 24 139 RTD alarm setup Function can be set to monitor the measurement data from...

Страница 256: ...C Dec F 0 Deg C 1 Deg F 0 Deg C Selects the measurement temperature scale Celsius or Fahrenheit S1 S16 Measurement Displays the measurement value in the selected temperature scale S1 S16 Sensor 0 Ok...

Страница 257: ...unction offers sixteen 16 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 The fun...

Страница 258: ...Alarm2 OFF RTD1 S11 Alarm1 ON RTD1 S11 Alarm1 OFF RTD1 S11 Alarm2 ON RTD1 S11 Alarm2 OFF RTD1 S12 Alarm1 ON RTD1 S12 Alarm1 OFF RTD1 S12 Alarm2 ON RTD1 S12 Alarm2 OFF RTD1 S13 Alarm1 ON RTD1 S13 Alarm...

Страница 259: ...Meas Invalid RTD2 S7 Meas Ok RTD2 S7 Meas Invalid RTD2 S8 Meas Ok RTD2 S8 Meas Invalid RTD2 S9 Meas Ok RTD2 S9 Meas Invalid RTD2 S10 Meas Ok RTD2 S10 Meas Invalid RTD2 S11 Meas Ok RTD2 S11 Meas Inval...

Страница 260: ...lay can be avoided by using arc protection The arc protection card has a high speed output to trip signals faster as well as to extend the speed of arc protection Figure 5 3 25 140 IED equipped with a...

Страница 261: ...pping the zone are met light OR light and current but the tripping is blocked by an input I I0 Arc S1 Sensor fault I I0 Arc S2 Sensor fault I I0 Arc S3 Sensor fault I I0 Arc S4 Sensor fault The detect...

Страница 262: ...e which sensor channels are sensing which zones in this case sensor channels S1 and S2 are protecting Zone 1 Enable Light 1 of Zone 1 as well as Light 2 of Zone 2 The sensor channel S3 deals with Zone...

Страница 263: ...be enabled as there are sensors connected to both Zone 2 and 3 starts Sensors connected to the channel S3 are in Zone 2 Then enable Light 3 of Zone 2 The sensor connected to the channel S2 is in Zone...

Страница 264: ...nsors Defines the number of sensors connected to the channel channels 1 2 3 4 Channel 2 sensors Channel 3 sensors Channel 4 sensors Channel 1 sensor status 0 Sensors OK 1 Configuration fault state Dis...

Страница 265: ...channel 1 trips the zone 0 Disabled 1 Enabled 0 Disabled Zone1 2 3 4 Pres 2 Enabled Pressure detected in sensor channel 2 trips the zone 0 Disabled 1 Enabled 0 Disabled Zone1 2 3 4 Pres 3 Enabled Pres...

Страница 266: ...up element activates a TRIP signal is generated 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 furth...

Страница 267: ...1 Phase current Blocked OFF ARC1 Phase current Start ON ARC1 Phase current Start OFF ARC1 Residual current Blocked ON ARC1 Residual current Blocked OFF ARC1 Residual current Start ON ARC1 Residual cur...

Страница 268: ...99 The programmable stage is a stage that the user can program to create more advanced applications either as an individual stage or together with programmable logic The relay has ten programmable sta...

Страница 269: ...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 26 209 General settings of the function Name Range Default Desc...

Страница 270: ...easier to set although it is also possible to just use the scaling factor of 1 0 and set the desired pick up limit as the primary voltage Similaryly any chosen measurement value can be scaled to the...

Страница 271: ...the measured signals fulfills the comparison condition Similarly the user can set up a comparison of three values The table below presents the available modes for a three signal comparison Mode Descri...

Страница 272: ...l has their own pick up setting The image below is an example of setting an analog comparison with three signals The stage will trip if Signal 1 or Signal 2 as well as Signal 3 fulfill the pick up con...

Страница 273: ...in 20 ms in either direction the comparison condition is fulfilled The condition is not dependent on direction 6 Delta measval C Change o hange ov ver time er time If the measured signal changes more...

Страница 274: ...9th h IL2 19th harmonic value in p u IL3 Description IL3 ff p u IL3 Fundamental frequency RMS value in p u IL3 2nd h IL3 2nd harmonic value in p u IL3 3rd h IL3 3rd harmonic value in p u IL3 4th h IL3...

Страница 275: ...u I02 9th h I02 9th harmonic value in p u I02 11th h I02 11th harmonic value in p u I02 13th h I02 13th harmonic value in p u I02 15th h I02 15th harmonic value in p u I02 17th h I02 17th harmonic val...

Страница 276: ...ages Description UL12Mag UL12 Primary voltage V UL23Mag UL23 Primary voltage V UL31Mag UL31 Primary voltage V Phase to neutral voltages Description UL1Mag UL1 Primary voltage V UL2Mag UL2 Primary volt...

Страница 277: ...power L3 P kW QL3 Reactive power L3 Q kVar tanfiL3 Phase active power direction L3 cosfiL3 Phase reactive power direction L3 Impedance and admit Impedance and admittance Z tance ZR RX Y X YGB GB Name...

Страница 278: ...e X L3 secondary Z1Pri Impedance Z L1 primary Z2Pri Impedance Z L2 primary Z3Pri Impedance Z L3 primary Z1Sec Impedance Z L1 secondary Z2Sec Impedance Z L2 secondary Z3Sec Impedance Z L3 secondary Z1A...

Страница 279: ...Admittance Y L2 angle YL3Angle Admittance Y L3 angle G0Pri Conductance G0 primary mS B0Pri Susceptance B0 primary mS G0Sec Conductance G0 secondary mS B0Sec Susceptance B0 secondary mS Y0Pri Admittan...

Страница 280: ...Step Default PS Pick up setting Mag calc Pick up magnitude 5 000 000 0000 5 000 000 0000 0 0001 0 01 PS Setting hysteresis Mag Setting hysteresis 0 0000 50 0000 0 0001 3 Definite operating time delay...

Страница 281: ...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 buffer ON OFF or both The events triggered by the...

Страница 282: ...OFF PGS1 PS7 Trip ON PGS1 PS7 Trip OFF PGS1 PS7 Block ON PGS1 PS7 Block OFF PGS1 PS8 Start ON PGS1 PS8 Start OFF PGS1 PS8 Trip ON PGS1 PS8 Trip OFF PGS1 PS8 Block ON PGS1 PS8 Block OFF PGS1 PS9 Start...

Страница 283: ...lose to nothing In such cases when the measured voltage is absent the fault direction cannot be solved As backup non directional protection can be used for tripping but in such cases the selectivity o...

Страница 284: ...actual measured phase current angle takes place While voltage memory is used the angle of phase currents drifts approximately one degree for each passing second see the graph below Figure 5 3 27 144 V...

Страница 285: ...5 1 0 s When the operating time passes and voltage memory is no longer used directional overcurrent and or distance protection goes to the unidirectional mode to secure a safe tripping The memory use...

Страница 286: ...N M1VT1 Using Voltage memory OFF M1VT1 Voltage memory blocked ON M1VT1 Voltage memory blocked OFF 5 4 Control functions 5 4 1 Setting group selection All relay types support up to eight 8 separate set...

Страница 287: ...ge 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 set...

Страница 288: ...led 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 se...

Страница 289: ...ed 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...

Страница 290: ...ate 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 whethe...

Страница 291: ...Figure 5 4 1 149 Setting group control two wire connection from Petersen coil status A AQ Q M255 M255 Instruction manual Version 2 06 Arcteq Relays Ltd IM00020 289...

Страница 292: ...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 ap...

Страница 293: ...s the inverted signal NOT as well as the use of logics in 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 th...

Страница 294: ...SGS SG8 Request ON SGS SG8 Request OFF SGS Remote Change SG Reqeuest ON SGS Remote Change SG Request OFF SGS Local Change SG Request ON SGS Local Change SG Request OFF SGS Force Change SG ON SGS Force...

Страница 295: ...control can be done by local control or by 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 contro...

Страница 296: ...ide the open and close commands while device is in Remote status The remote controls cannot override the open and close commands while device is in Local status OBJ LN mode 1 On 2 Blocked 3 Test 4 Tes...

Страница 297: ...be able to close circuit breaker Synchrocheck status can be either an internal signal generated by synchrocheck function or digital input activation with an external synchrocheck device Use Object rea...

Страница 298: ...s pulled out If IEC 61850 is enabled GOOSE signals can be used for status indication Object Ready Objectx Ready status In A link to a physical digital input Indicates that status of the monitored obje...

Страница 299: ...perator 2 Configurator 3 Super user Defines what level of access is required for MIMIC control The default is the Configurator level Objectx LOCAL Close control input Digital input or other logical si...

Страница 300: ...nerates 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 O...

Страница 301: ...Close Request OFF OBJ1 Close Command ON OBJ1 Close Command OFF OBJ1 Open Blocked ON OBJ1 Open Blocked OFF OBJ1 Close Blocked ON OBJ1 Close Blocked OFF OBJ1 Object Ready OBJ1 Object Not Ready OBJ1 Syn...

Страница 302: ...k OBJ2 Open Command Fail OBJ2 Close Command Fail OBJ2 Final trip ON OBJ2 Final trip OFF OBJ3 Object Intermediate OBJ3 Object Open OBJ3 Object Close OBJ3 Object Bad OBJ3 WD Intermediate OBJ3 WD Out OBJ...

Страница 303: ...WD Bad OBJ4 Open Request ON OBJ4 Open Request OFF OBJ4 Open Command ON OBJ4 Open Command OFF OBJ4 Close Request ON OBJ4 Close Request OFF OBJ4 Close Command ON OBJ4 Close Command OFF OBJ4 Open Blocke...

Страница 304: ...5 Open Blocked ON OBJ5 Open Blocked OFF OBJ5 Close Blocked ON OBJ5 Close Blocked OFF OBJ5 Object Ready OBJ5 Object Not Ready OBJ5 Sync Ok OBJ5 Sync Not Ok OBJ5 Open Command Fail OBJ5 Close Command Fai...

Страница 305: ...d Fail OBJ6 Final trip ON OBJ6 Final trip OFF OBJ7 Object Intermediate OBJ7 Object Open OBJ7 Object Close OBJ7 Object Bad OBJ7 WD Intermediate OBJ7 WD Out OBJ7 WD In OBJ7 WD Bad OBJ7 Open Request ON O...

Страница 306: ...Request OFF OBJ8 Open Command ON OBJ8 Open Command OFF OBJ8 Close Request ON OBJ8 Close Request OFF OBJ8 Close Command ON OBJ8 Close Command OFF OBJ8 Open Blocked ON OBJ8 Open Blocked OFF OBJ8 Close...

Страница 307: ...lose Blocked ON OBJ9 Close Blocked OFF OBJ9 Object Ready OBJ9 Object Not Ready OBJ9 Sync Ok OBJ9 Sync Not Ok OBJ9 Open Command Fail OBJ9 Close Command Fail OBJ9 Final trip ON OBJ9 Final trip OFF OBJ10...

Страница 308: ...command s failure Close fail The cause of a Close command s failure Open command The source of an Open command Close command The source of an Open command General status The general status of the func...

Страница 309: ...f the status conditions open and close are active Table 5 4 3 226 Indicator I O Signal Range Description IndicatorX Open input Ind X Open Status In Digital input or other logical signal selected by th...

Страница 310: ...ermediate CIN5 Open CIN5 Close CIN5 Bad CIN6 Intermediate CIN6 Open CIN6 Close CIN6 Bad CIN7 Intermediate CIN7 Open CIN7 Close CIN7 Bad CIN8 Intermediate CIN8 Open CIN8 Close CIN8 Bad CIN9 Intermediat...

Страница 311: ...at Control Device IO mA outputs The outputs are activated in groups of two channels 1 and 2 are activated together as are channels 3 and 4 see the image below Figure 5 4 4 154 Activating mA output ch...

Страница 312: ...ut value 2 0 0000 24 0000mA 0 0001mA 0mA The mA output value when the measured value is equal to or greater than Input value 2 Figure 5 4 4 155 Example of the effects of mA output channel settings Tab...

Страница 313: ...state see the image below The switch cannot be controlled by an auxiliary input such as digital inputs or logic signals it can only be controlled locally mimic or remotely RTU Settings These settings...

Страница 314: ...alog input scaling 0 Disabled 1 Activated 0 Disabled Enables and disables the input Scaling curve 1 4 0 Disabled 1 Activated 0 Disabled Enables and disables the scaling curve and the input measurement...

Страница 315: ...process signal For example the value for the filter time constant is 2 seconds for a 1 second period time of a disturbance oscillation When the curve signal is out of range it activates the ASC1 4 inp...

Страница 316: ...pere 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...

Страница 317: ...can be controlled with a virtual switch built in the mimic and from a SCADA system IEC 61850 Modbus IEC 101 etc Logical inputs are volatile signals their status will always return to 0 when the AQ 200...

Страница 318: ...ult Description User editable description LIx 1 31 characters Logical input x Description of the logical input This description is used in several menu types for easier identification 5 5 Monitoring f...

Страница 319: ...de processing threshold comparator block signal check time delay characteristics output processing The following conditions have to met simultaneously for the function alarm to activate None of the th...

Страница 320: ...The following figure presents a simplified function block diagram of the current transformer supervision function Figure 5 5 1 160 Simplified function block diagram of the CTS function Measured input...

Страница 321: ...eral behavior of the function These settings are static i e it is not possible to change them by editing the setting group Table 5 5 1 239 General settings of the function Name Range Default Descripti...

Страница 322: ...n the minimum and maximum values of the phase current This condition has to be met for the function to activate I2 I1 ratio 0 01 100 00 0 01 49 00 Determines the pick up ratio threshold for the negati...

Страница 323: ...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 START function has been activated before t...

Страница 324: ...cuit 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...

Страница 325: ...e has passed the function issues an alarm This means that the function supervises both the primary and the secondary circuit Figure 5 5 1 164 No wiring fault but heavy unbalance If any of the phases e...

Страница 326: ...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 1 166 Normal situation res...

Страница 327: ...ll be issued in case if the situation continues until the set alarming time is met Figure 5 5 1 168 Broken primary phase current wiring In this example all other condition are met except the residual...

Страница 328: ...om the status changes in ALARM 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 record...

Страница 329: ...function can be changed via setting group selection The operational logic consists of the following input magnitude processing threshold comparator block signal check time delay characteristics output...

Страница 330: ...surement 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...

Страница 331: ...5 2 246 Pick up settings Name Range Step Default Description Voltage low pickup 0 05 0 50 Un 0 01 Un 0 05 Un If one the measured voltages is below low pickup value and two of the measured voltages ex...

Страница 332: ...EQ Rev 3 Bus Live VTS Ok SEQ Undef 4 Bus Live VTS problem Displays the status of bus voltages Expected operating time 0 000 1800 000s 0 005s Displays the expected operating time when a fault occurs Ti...

Страница 333: ...gered by the function are recorded with a time stamp and with process data values Table 5 5 2 248 Event messages Event block name Event names VTS1 Bus VT fail Start ON VTS1 Bus VT fail Start OFF VTS1...

Страница 334: ...ons for each phase is calculated from these currents The value is cumulatively deducted from the starting operations starting value The user can set up two separate alarm levels which are activated wh...

Страница 335: ...ching the setting group Table 5 5 3 251 General settings Name Range Default Description CBW LN mode 1 On 2 Blocked 3 Test 4 Test Blocked 5 Off 1 On Set mode of CBW block This parameter is visible only...

Страница 336: ...d 0 Disabled Enable and disable the Alarm 1 stage Alarm 1 Set 0 200 000 1 1 000 Defines the pick up threshold for remaining operations When the number of remaining operations is below this setting the...

Страница 337: ...ations Enable Alarm 2 1 Enabled Alarm 2 Set 100 operations With these settings Alarm 1 is issued when the cumulative interruption counter for any of the three phases dips below the set 1000 remaining...

Страница 338: ...r phase L1 L2 Operations left Operations left for phase L2 L3 Operations left Operations left for phase L3 Events and registers The circuit breaker wear function abbreviated CBW in event block names g...

Страница 339: ...available for the mimic and the measurement views in the HMI carousel The user can also set the alarming limits for each measured channel if the application so requires The monitoring of the measured...

Страница 340: ...of the whole harmonic specter of 32 components from each measured current channel From these measurements the function calculates either the amplitude ratio or the power ratio A 20 ms averaged value o...

Страница 341: ...bles the THD alarm function from phase currents Enable I01 THD alarm 0 Enabled 1 Disabled 0 Enabled Enables and disables the THD alarm function from residual current input I01 Enable I02 THD alarm 0 E...

Страница 342: ...splay 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 soft...

Страница 343: ...ocked ON THD1 Blocked OFF The function registers its operation into the last twelve 12 time stamped registers The register of the function records the ON event process data for ACTIVATED BLOCKED etc T...

Страница 344: ...ent I02 fine IL1 Phase current IL1 CT card 2 IL2 Phase current IL2 CT card 2 IL3 Phase current IL3 CT card 2 I01 c Residual current I01 coarse CT card 2 I01 f Residual current I01 fine CT card 2 I02 c...

Страница 345: ...ing channels Measurements Signal Description Signal Description Currents Pri Pha curr ILx Primary phase current ILx IL1 IL2 IL3 Pha curr ILx TRMS Pri Primary phase current TRMS IL1 IL2 IL3 Pha angle I...

Страница 346: ...system voltage U0 in percentages Ux Angle Ux angle U1 U2 U3 U4 System volt U0 ang Angle of the system voltage U0 Pos Neg Zero Seq volt Angle Positive Negative Zero sequence voltage angle Ux Angle diff...

Страница 347: ...Display when not measurable is 0 Hz Frequency at the moment If the frequency is not measurable this will show 0 Hz Neutral susceptance B Pri Primary neutral susceptance f meas qlty Quality of tracked...

Страница 348: ...ually or automatically by using the dedicated triggers Every signal listed in Digital recording channels can be selected to trigger the recorder The device has a maximum limit of 100 for the number of...

Страница 349: ...checking the boxes enable the selected triggers Table 5 5 5 270 Recorder settings Name Range Step Default Description Recording length 0 100 1800 000s 0 01s 1s Sets the length of a recording Recording...

Страница 350: ...than zero At least one trigger input has to be selected in the Recorder Trigger setting to fulfill this term Estimating the maximum length of total recording time Once the disturbance recorder s sett...

Страница 351: ...o be made according to the following specifications the recording length is 6 0 s the sample rate is 64 s c therefore with a 50 Hz system frequency a sample is taken every 312 5 s the analog channels...

Страница 352: ...File Open see the image below The recordings are packed COMTRADE files a zip file includes cfg and dat files AQviewer can open both original packed zip files and COMTRADE files directly as they are a...

Страница 353: ...he cursor to create the area you want to zoom in You can also zoom in and out by using the horizontal and vertical magnifying glass and icons numbered 3 in the image below If you want to reset the zoo...

Страница 354: ...read to SCADA Table 5 5 6 272 Parameter descriptions Name Range Step Description Activate counter input Any binary input Counter runs whenever input set here is active Running hours hh mm ss Indicates...

Страница 355: ...ments 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 r...

Страница 356: ...RMS 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 Cu...

Страница 357: ...S 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...

Страница 358: ...ero 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...

Страница 359: ...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...

Страница 360: ...IL1Ang 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 T...

Страница 361: ...ence 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...

Страница 362: ...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...

Страница 363: ...1 8 0 000 1800 000 A V p u 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...

Страница 364: ...lays the status of the NTP time synchronization at the moment NO NOTE TE This indication is not valid if another time synchronization method is used external serial NTP processed message count 0 232 1...

Страница 365: ...ings for measurement update interval Name Range Step Default Description Current measurement update interval 500 10 000ms 5ms 2 000ms Defines the measurement update interval of all current related mea...

Страница 366: ...d with the IEC 61850 tool in AQtivate Report Control Blocks both buffered and unbuffered reporting Control Direct operate with normal security Select before operate with normal security Direct with en...

Страница 367: ...1 5 0deg 0 1deg 1deg Determines the data reporting deadband settings for this measurement Integration time 0 10 000ms 1ms 0ms Defines the integration time of the protocol If this parameter is set to 0...

Страница 368: ...x Description of the GOOSE input This description is used in several menu types for easier identification Setting the publisher The configuration of the GOOSE publisher is done using the IEC 61850 too...

Страница 369: ...d 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 coun...

Страница 370: ...eadband 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 setti...

Страница 371: ...5 534 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 info...

Страница 372: ...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 r...

Страница 373: ...ugh a communication protocol if one is in use The following table presents the setting parameters available for the 12 channels Table 6 2 293 Fault register settings Name Range Step Default Descriptio...

Страница 374: ...0CalcMag 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...

Страница 375: ...8 ADAM module Settings Table 6 3 295 Settings Name Range Step Default Description Measurement value recorder mode 0 Disabled 1 Activated 0 Disabled Activates and disables the real time signals to com...

Страница 376: ...7 Connections and application examples 7 1 Connections of AQ M255 Figure 7 1 180 AQ M255 variant without add on modules A AQ Q M255 M255 Instruction manual Version 2 06 374 Arcteq Relays Ltd IM00020...

Страница 377: ...Figure 7 1 181 AQ M255 variant with digital input and output modules A AQ Q M255 M255 Instruction manual Version 2 06 Arcteq Relays Ltd IM00020 375...

Страница 378: ...example with function block diagram 7 2 Application example and its connections This chapter presents an application example for the motor protection IED A AQ Q M255 M255 Instruction manual Version 2...

Страница 379: ...status while the digital outputs are used for breaker control Figure 7 2 183 Application example and its connections 7 3 Two phase three wire ARON input connection This chapter presents the two phase...

Страница 380: ...ugh 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 digi...

Страница 381: ...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 op...

Страница 382: ...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...

Страница 383: ...losed 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 inp...

Страница 384: ...Figure 7 4 189 Example block scheme A AQ Q M255 M255 Instruction manual Version 2 06 382 Arcteq Relays Ltd IM00020...

Страница 385: ...number of inputs and outputs and the power supply as well as one separate voltage measurement module and one separate current measurement module The images below present the modules of both the non op...

Страница 386: ...d from Arcteq Relays Ltd or its representative who can then provide the module with its corresponding unlocking code to allow the device to operate correctly once the hardware configuration has been u...

Страница 387: ...the code and the modules do not match the device issues and alarm An alarm is also issued if the device expects to find a module here but does not find one 5 Scan Scans Slot D and finds the five chan...

Страница 388: ...ee DI1 DI3 in the CPU module and the rest in Slots C H in groups of eight It also has a total of 10 digital output channels available five DO1 DO5 in the CPU module and five DO6 DO10 in Slot I Additio...

Страница 389: ...with software The digital output controls are also set by the user with software By default the digital outputs are controlled in 5 ms program cycles All output contacts are mechanical The rated volt...

Страница 390: ...ng lug terminals Connector Description CTM 1 2 Phase current measurement for phase L1 A CTM 3 4 Phase current measurement for phase L2 B CTM 5 6 Phase current measurement for phase L3 C CTM 7 8 Coarse...

Страница 391: ...able voltage measurement input U4 A basic voltage measurement module with four channels includes four voltage measurement inputs that can be configured freely The voltage measurement module is connect...

Страница 392: ...n be upgraded in the field after the device s original installation when required The properties of the inputs in this module are the same as those of the inputs in the main processor module The curre...

Страница 393: ...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 Disa...

Страница 394: ...DIx 1 31 characters DIx Description of the digital input This description is used in several menu types for easier identification Digital input voltage measurements Digital input option card channels...

Страница 395: ...l digital outputs are scanned in 5 ms program cycles and their contacts are mechanical in type The rated voltage of the NO NC outputs is 250 VAC DC For the naming convention of the digital inputs prov...

Страница 396: ...p to three 3 light sensors serially connected to it The user can choose how many of the channels are in use The high speed outputs HSO1 and HSO2 operate only with a DC power supply The battery s posit...

Страница 397: ...HSO control 8 8 RTD input module optional Figure 8 8 200 RTD input module connectors The RTD input module is an add on module with eight 8 RTD input channels Each input supports 2 wire 3 wire and 4 wi...

Страница 398: ...2 module connectors Connector Name Description COM E Serial fiber GG PP GP PG Serial based communications Wavelength 660 nm Compatible with 50 125 m 62 5 125 m 100 140 m and 200 m Plastic Clad Silica...

Страница 399: ...munications COM F Pin 8 RS 232 RX Serial based communications COM F Pin 9 COM F Pin 10 3 3 V output spare Spare power source for external equipment 45 mA COM F Pin 11 COM F Pin 12 The option card incl...

Страница 400: ...tors 10BASE T and 100BASE TX Both cards support both HSR and PRP protocols 8 11 Double ST 100 Mbps Ethernet communication module optional Figure 8 11 204 Double ST 100 Mbps Ethernet communication modu...

Страница 401: ...dundancy options please refer to the option card LC 100 Mbps Ethernet communication module The images below present two example configurations the first displays a ring configuration note how the thir...

Страница 402: ...le RJ45 10 100 Mbps Ethernet communication module optional Figure 8 12 207 Double RJ 45 10 100 Mbps Ethernet communication module Connector Description Two pin connector IRIG B input A AQ Q M255 M255...

Страница 403: ...igurations For other redundancy options please refer to the option card LC 100 Mbps Ethernet communication module Figure 8 12 208 Example of a multidrop configuration 8 13 Milliampere mA I O module op...

Страница 404: ...n the factory or it can be upgraded in the field after the device s original installation when required The user sets the mA I O with the mA outputs control function This can be done at Control Device...

Страница 405: ...Figure 8 14 211 Device installation A AQ Q M255 M255 Instruction manual Version 2 06 Arcteq Relays Ltd IM00020 403...

Страница 406: ...Figure 8 14 212 Panel cut out and spacing of the IED A AQ Q M255 M255 Instruction manual Version 2 06 404 Arcteq Relays Ltd IM00020...

Страница 407: ...quency 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...

Страница 408: ...each 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 H...

Страница 409: ...wer and energy measurement accuracy Power measurement P Q S Frequency range 6 75 Hz Inaccuracy 0 3 1 2 IN or 3 VA secondary 1 0 1 2 IN or 3 VA secondary Energy measurement Frequency range 6 75 Hz Ener...

Страница 410: ...rminal block Phoenix Contact MSTB 2 5 5 ST 5 08 Solid or stranded wire Maximum wire diameter 2 5 mm2 Other Minimum recommended fuse rating MCB C2 9 1 2 2 CPU communication ports Table 9 1 2 2 308 Fron...

Страница 411: ...Table 9 1 2 3 311 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...

Страница 412: ...313 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...

Страница 413: ...king 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 Phoen...

Страница 414: ...es Voltage withstand 265 VDC Nominal voltage Pick up threshold Release threshold 24 VDC 16 VDC 15 VDC Scanning rate 5 ms Polarity Normally Off Current drain 3 mA Terminal block connection Terminal blo...

Страница 415: ...ata for the RTD input module Channels 1 8 2 3 4 wire RTD Pt100 or Pt1000 9 1 3 6 RS 232 serial fiber communication module Table 9 1 3 6 321 Technical data for the RS 232 serial fiber communication mod...

Страница 416: ...ep 0 01 Ifund Inaccuracy Current 2nd harmonic blocking 0 5 Iset or 15 mA 0 10 4 0 Iset 1 0 unit of the 2nd harmonic setting Operation time Definite time function operating time setting 0 00 1800 00 s...

Страница 417: ...0001 In Inaccuracy Starting I01 1 A Starting I02 0 2 A Starting I0Calc 5 A 0 5 I0set or 3 mA 0 005 10 0 Iset 1 5 I0set or 1 0 mA 0 005 25 0 Iset 1 0 I0set or 15 mA 0 005 4 0 Iset Operating time Defin...

Страница 418: ...setting step 0 10 deg Pick up current setting 0 10 40 00 In setting step 0 01 In Inaccuracy Current U1 I1 angle U 15 V U1 I1 angle U 1 15 V 0 5 Iset or 15 mA 0 10 4 0 Iset 0 20 1 5 Operation time Defi...

Страница 419: ...Petersen coil GND Wattmetric 180 Earthed Adjustable sector When the earthed mode is active Tripping area center Tripping area size 0 00 360 00 deg setting step 0 10 deg 45 00 135 00 deg setting step...

Страница 420: ...00 setting step 0 01 I2 I1 Minimum phase current at least one phase above 0 01 2 00 In setting step 0 01 In Inaccuracy Starting I2pu Starting I2 I1 1 0 unit or 100 mA 0 10 4 0 In 1 0 unit or 100 mA 0...

Страница 421: ...0000 step 0 0001 Inaccuracy IDMT operating time IDMT minimum operating time 1 5 or 20 ms 20 ms Instant operation time Start time and instant operation time trip IM ISET ratio 1 05 50 ms Reset Reset ra...

Страница 422: ...p 0 005 s Inaccuracy Current criteria IM ISET ratio 1 05 DO or DI only 1 0 or 55 ms 15 ms Reset Reset ratio 97 of the pick up current setting Reset time 50 ms 9 2 1 8 Low impedance or high impedance r...

Страница 423: ...ers 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...

Страница 424: ...tardation time overshoot 30 ms Reset Reset ratio 103 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 re...

Страница 425: ...the pick up voltage setting Reset time setting Inaccuracy Reset time 0 000 150 000 s step 0 005 s 1 0 or 50 ms Instant reset time and start up reset 50 ms 9 2 1 12 Sequence voltage protection U1 U2 47...

Страница 426: ...1IL3 CT2IL3 VT1U3 VT2U3 Pick up f pick up setting f pick up setting 10 00 70 00 Hz setting step 0 01 Hz 7 00 65 00 Hz setting step 0 01 Hz Inaccuracy sampling mode Fixed Tracking 20 mHz 50 60 Hz fixed...

Страница 427: ...acy df dt 5 0 ISET or 20 mHz s frequency 15 mHz U 30 V secondary 20 mHz I 30 of rated secondary Operation time Definite time function operating time setting 0 00 1800 00 s setting step 0 005 s Inaccur...

Страница 428: ...eration time Definite time function operating time setting 0 0 3600 0 s setting step 0 1 s Inaccuracy Pick up and reset 1 0 or 500 ms Environmental settings Thermal replica temperature estimates Selec...

Страница 429: ...Current inputs Phase current inputs IL1 A IL2 B IL3 C Current input magnitudes RMS phase currents Pick up Pick up current setting 0 10 40 00 IN setting step 0 10 IN Inaccuracy Current 0 5 ISET or 15...

Страница 430: ...accuracy Starting 3 of the set pick up value 0 5 IN setting 5 mA 0 5 IN setting from the motor start locked rotor monitoring function Definite time operating time 0 5 or 10 ms of the counter deduct 9...

Страница 431: ...and instant operation time trip IM ISET ratio 1 05 50 ms Reset Reset ratio 97 of the pick up current setting Reset time setting Inaccuracy Reset time 0 010 150 000 s step 0 005 s 1 0 or 35 ms Instant...

Страница 432: ...0 V secondary and the minimum current is 0 1 A secondary 9 2 1 23 Arc fault protection IArc I0Arc 50Arc 50NArc optional Table 9 2 1 23 346 Technical data for the arc fault protection function Measure...

Страница 433: ...age inputs UL1 UL2 UL3 UL12 UL23 UL31 U0 Current inputs back up frequency Phase current inputs IL1 A IL2 B IL3 C Pick up Pick up voltage setting Pick up current setting optional 2 00 50 00 UN setting...

Страница 434: ...Digital inputs Software signals Output signals Close command output Open command output Operation time Breaker traverse time setting 0 02 500 00 s setting step 0 02 s Max close open command pulse len...

Страница 435: ...in differential protection relays 9 2 3 2 Voltage transformer supervision 60 Table 9 2 3 2 351 Technical data for the voltage transformer supervision function Measurement inputs Voltage inputs UL1 UL2...

Страница 436: ...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 4 353 Technical data for the total harmonic distortion function Inp...

Страница 437: ...st 0 040 s of stage operation time required 9 2 3 6 Disturbance recorder Table 9 2 3 6 355 Technical data for the disturbance recorder function Recorded values Recorder analog channels 0 20 channels F...

Страница 438: ...50 s Between wire and earth 4 kV 1 2 50 s Radiated RF electromagnetic field EN 60255 26 IEC 61000 4 3 f 80 1 000 MHz 10 V m Conducted RF field EN 60255 26 IEC 61000 4 6 f 150 kHz 80 MHz 10 V RMS Table...

Страница 439: ...e temperature range 35 70 C Transport and storage temperature range 40 70 C Other Altitude 2000 m Overvoltage category III Pollution degree 2 Casing and package Table 9 3 362 Dimensions and weight Wit...

Страница 440: ...l 6 channel 2 or 3 wires RTD Input module pre configured Requires an external power module Advanced Co Ltd ADAM 4018 BE External 8 ch Thermocouple mA Input module pre configured Requires an external p...

Страница 441: ...Light point sensor unit 50 000 lux threshold Max cable length 200 m Arcteq Ltd AQ 02A Pressure and light point sensor unit 8 000 lux threshold Max cable length 200 m Arcteq Ltd AQ 02B Pressure and li...

Страница 442: ...d 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...

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