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Instruction manual

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AQ F3x0 Feeder protection IED

56 (162

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3.2.7

C

URRENT UNBALANCE

(60)

The current unbalance protection function can be applied to detect unexpected asymmetry in
current measurement.
The  applied  method  selects  maximum  and  minimum  phase  currents  (fundamental  Fourier
components). If the difference between them is above the setting limit, the function generates
a start signal.
Structure of the current unbalance protection function is presented in the figure below

Figure 3-32: Structure of the current unbalance protection algorithm.

The analogue signal processing principal scheme is presented in the figure below.

Figure 3-33: Analogue signal processing for the current unbalance function.

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Summary of Contents for AQ F3 0 Series

Page 1: ...INSTRUCTION MANUAL AQ F3x0 Feeder protection IED ...

Page 2: ...e description revised IRIG B information added Voltage Sag and swell function added Updated ordering information and type designation Technical data revised Revision 1 03 Date July 2012 Changes Synch check revised technical data revised order code updated Revision 1 04 Date 17 1 2014 Changes Added F390 full rack option Added F390 rack design Added F390 order code Revision 1 05 Date 11 2 2015 Chang...

Page 3: ...tion chapter Read these instructions carefully and inspect the equipment to become familiar with it before trying to install operate service or maintain it Electrical equipment should be installed operated serviced and maintained only by qualified personnel Local safety regulations should be followed No responsibility is assumed by Arcteq for any consequences arising out of the use of this materia...

Page 4: ...7 Current unbalance 60 56 3 2 8 Thermal overload T 49L 58 3 2 9 Over voltage U U 59 60 3 2 10 Under voltage U U 27 61 3 2 11 Residual over voltage U0 U0 59N 62 3 2 12 Over frequency f f f f 81O 63 3 2 13 Under frequency f f f f 81L 64 3 2 14 Rate of change of frequency df dt df dt df dt df dt 81R 65 3 2 15 Breaker failure protection function CBFP 50BF 66 3 2 16 Inrush current detection INR2 68 68 ...

Page 5: ...2 6 5 Binary output modules for signaling 143 6 6 Tripping module 144 6 7 Voltage measurement module 145 6 8 Current measurement module 146 6 9 Installation and dimensions 147 7 TECHNICAL DATA 151 7 1 Protection functions 151 7 1 1 Overcurrent protection functions 151 7 1 2 Directional Overcurrent protection functions 152 7 1 3 Voltage protection functions 153 7 1 4 Frequency protection functions ...

Page 6: ... manual AQ F3x0 Feeder protection IED 6 162 7 5 2 Voltage tests 159 7 5 3 Mechanical tests 159 7 5 4 Casing and package 159 7 5 5 Environmental conditions 160 8 ORDERING INFORMATION 161 9 REFERENCE INFORMATION 162 ...

Page 7: ...C Electromagnetic compatibility HMI Human Machine Interface HW Hardware IED Intelligent Electronic Device IO Input Output LED Light emitting diode LV Low voltage MV Medium voltage NC Normally closed NO Normally open RMS Root mean square SF System failure TMS Time multiplier setting TRMS True RMS VAC Voltage Alternating Current VDC Voltage Direct Current SW Software uP Microprocessor ...

Page 8: ...e available functions This manual describes the specific application of the AQ F3x0 feeder protection IED Arcteq protection IED can be ordered in two mechanical sizes The AQ F350 comes in half of 19 inch rack arrangement and the AQ F390 comes in full 19 inch rack arrangement allowing for larger quantity of IO cards The functionality is the same in both units The AQ F3x0 feeder protection IED is ap...

Page 9: ...esidual time overcurrent protection TOC67_low TOC67_high IDir IDir 67 Directional three phase overcurrent protection TOC67N_low TOC67N_high I0Dir I0Dir 67N Directional residual overcurrent protection INR2 I2h 68 Inrush detection and blocking VCB60 Iub 46 Current unbalance protection TTR49L T 49L Line thermal protection TOV59_low TOV59_high U U 59 Definite time overvoltage protection TUV27_low TUV2...

Page 10: ...r the sampled current values for disturbance recording perform the basic calculations o Fourier basic harmonic magnitude and angle o True RMS value provide the pre calculated current values to the subsequent software function blocks deliver the calculated Fourier basic component values for on line displaying The current input function block receives the sampled current values from the internal ope...

Page 11: ...ection into the I0 residual input Phase current CT CT primary 100A CT secondary 5A Ring core CT in Input I0 I0CT primary 100A I0CT secondary 5A Phase currents are connected to summing Holmgren connection into the I0 residual input The sampled values are available for further processing and for disturbance recording The performed basic calculation results the Fourier basic harmonic magnitude and an...

Page 12: ...able 3 2 Enumerated parameters of the current input function Table 3 3 Floating point parameters of the current input function Table 3 4 Online measurements of the current input function NOTE1 The scaling of the Fourier basic component is such that if pure sinusoid 1A RMS of the rated frequency is injected the displayed value is 1A The displayed value does not depend on the parameter setting value...

Page 13: ...er for synchro switching The role of the voltage input function block is to set the required parameters associated to the voltage inputs deliver the sampled voltage values for disturbance recording perform the basic calculations o Fourier basic harmonic magnitude and angle o True RMS value provide the pre calculated voltage values to the subsequent software modules deliver the calculated basic Fou...

Page 14: ...e 1 5 Un In this case the primary rated voltage of the VT must be the value of the rated PHASE TO NEUTRAL voltage Figure 3 3 Phase to neutral connection Connection U1 3 Ph N Voltage Rated Primary U1 3 11 55kV 20kv 3 Range Type 100 Residual voltage Rated Primary U4 11 54A If phase to phase voltage is connected to the VT input of the device then the Ph Ph option is to be selected Here the primary ra...

Page 15: ...setting the parameter Direction U1 3 This selection applies to each of the channels UL1 UL2 and UL3 The fourth voltage channel can be inverted by setting the parameter Direction U4 This inversion may be needed in protection functions such as distance protection or for any functions with directional decision or for checking the voltage vector positions These modified sampled values are available fo...

Page 16: ... input function Table 3 6 Integer parameters of the voltage input function Table 3 7 Float point parameters of the voltage input function NOTE The rated primary voltage of the channels is not needed for the voltage input function block itself These values are passed on to the subsequent function blocks ...

Page 17: ...former input function block and by the Current transformer input function block The pre processed values include the Fourier basic harmonic phasors of the voltages and currents and the true RMS values Additionally it is in these function blocks that parameters are set concerning the voltage ratio of the primary voltage transformers and current ratio of the current transformers Based on the pre pro...

Page 18: ...easurement function block The inputs of the line measurement function are the Fourier components and true RMS values of the measured voltages and currents frequency measurement parameters The outputs of the line measurement function are displayed measured values reports to the SCADA system NOTE the scaling values are entered as parameter setting for the Voltage transformer input function block and...

Page 19: ...idly grounded networks Another example is in figure where the measured values available are shown as on line information in a configuration for compensated networks Figure 3 5 Measured values in a configuration for compensated networks The available quantities are described in the configuration description documents ...

Page 20: ...he selection of the reporting mode items is explained in next chapters 3 1 3 5 Amplitude mode of reporting If the Amplitude mode is selected for reporting a report is generated if the measured value leaves the deadband around the previously reported value As an example Figure 1 2 shows that the current becomes higher than the value reported in report1 PLUS the Deadband value this results report2 e...

Page 21: ...Instruction manual AQ F3x0 Feeder protection IED 21 162 Table 3 11 The floating point parameters of the line measurement function ...

Page 22: ...d mode is selected for reporting a report is generated if the time integral of the measured value since the last report gets becomes larger in the positive or negative direction then the deadband 1sec area As an example Figure 1 3 shows that the integral of the current in time becomes higher than the Deadband value multiplied by 1sec this results report2 etc ...

Page 23: ...generated independently of the changes of the measured values when the defined time period elapses Table 3 12 The integer parameters of the line measurement function If the reporting time period is set to 0 then no periodic reporting is performed for this quantity All reports can be disabled for a quantity if the reporting mode is set to Off See Table 3 10 ...

Page 24: ...e parameter setting Figure 8 Operating characteristics of the instantaneous overcurrent protection function where tOP seconds Theoretical operating time if G GS without additional time delay G Measured peak value or Fourier base harmonic of the phase currents GS Pick up setting value The structure of the algorithm consists of following modules Fourier calculation module calculates the RMS values o...

Page 25: ...trip command without additional time delay based on the Fourier components of the phase currents or peak values of the phase currents in case if the user set pick up value is exceeded The operation of the function is phase wise and it allows each phase to be tripped separately Standard operation is three poles The function includes a blocking signal input which can be configured by user from eithe...

Page 26: ...t Setting step is 1 Default setting is 200 3 2 2 RESIDUAL INSTANTANEOUS OVERCURRENT I0 50N The residual instantaneous overcurrent protection function operates according to instantaneous characteristics using the residual current IN 3Io The setting value is a parameter and it can be doubled with dedicated input binary signal The basic calculation can be based on peak value selection or on Fourier b...

Page 27: ...he trip signal of the function Below is presented the structure of the instantaneous residual overcurrent algorithm Figure 11 Structure of the instantaneous residual overcurrent algorithm The algorithm generates a trip command without additional time delay based on the Fourier components of the phase currents or peak values of the phase currents in case if the user set pick up value is exceeded Th...

Page 28: ...on of the function Can be disabled operating based into measured current peak values or operating based into calculated current fundamental frequency RMS values Default setting is Peak value Start current 10 400 by step of 1 Pick up setting of the function Setting range is from 10 to 400 of the configured nominal secondary current Setting step is 1 Default setting is 200 ...

Page 29: ...signal of the function In the figure below is presented the structure of the time overcurrent algorithm Figure 3 12 Structure of the time overcurrent algorithm The algorithm generates a start signal based on the Fourier components of the phase currents or peak values of the phase currents in case if the user set pick up value is exceeded Trip signal is generated based into the selected definite ti...

Page 30: ... base harmonic of the phase currents GS Pick up setting value IDMT operating characteristics depend on the selected curve family and curve type All of the available IDMT characteristics follow Equation 3 1 IDMT characteristics equation t G seconds Theoretical operate time with constant value of G k c constants characterizing the selected curve α constant characterizing the selected curve G measure...

Page 31: ...lier The parameters and operating curve types follow corresponding standards presented in the table below Table 3 15 Parameters and operating curve types for the IDMT characteristics The end of the effective range of the dependent time characteristics GD is Above this value the theoretical operating time is definite ...

Page 32: ...d by the formula above The inverse characteristic is valid above GT 1 1 Gs Above this value the function is guaranteed to operate In following figures the characteristics of IDMT curves are presented with minimum and maximum pick up settings in respect of the IED measuring range Figure 3 14 IEC Normally Inverse operating curves with minimum and maximum pick up settings and TMS settings from 0 05 t...

Page 33: ...Instruction manual AQ F3x0 Feeder protection IED 33 162 Figure 3 15 IEC Very Inverse operating curves with minimum and maximum pick up settings and TMS settings from 0 05 to 20 ...

Page 34: ...Instruction manual AQ F3x0 Feeder protection IED 34 162 Figure 3 16 IEC Extremely Inverse operating curves with minimum and maximum pick up settings and TMS settings from 0 05 to 20 ...

Page 35: ...Instruction manual AQ F3x0 Feeder protection IED 35 162 Figure 3 17 IEC Long Time Inverse operating curves with minimum and maximum pick up settings and TMS settings from 0 05 to 20 ...

Page 36: ...Instruction manual AQ F3x0 Feeder protection IED 36 162 Figure 3 18 ANSI IEEE Normally Inverse operating curves with minimum and maximum pick up settings and TMS settings from 0 05 to 20 ...

Page 37: ...Instruction manual AQ F3x0 Feeder protection IED 37 162 Figure 3 19 ANSI IEEE Moderately Inverse operating curves with minimum and maximum pick up settings and TMS settings from 0 05 to 20 ...

Page 38: ...Instruction manual AQ F3x0 Feeder protection IED 38 162 Figure 3 20 ANSI IEEE Very Inverse operating curves with minimum and maximum pick up settings and TMS settings from 0 05 to 20 ...

Page 39: ...Instruction manual AQ F3x0 Feeder protection IED 39 162 Figure 3 21 ANSI IEEE Extremely Inverse operating curves with minimum and maximum pick up settings and TMS settings from 0 05 to 20 ...

Page 40: ...Instruction manual AQ F3x0 Feeder protection IED 40 162 Figure 3 22 ANSI IEEE Long Time Inverse operating curves with minimum and maximum pick up settings and TMS settings from 0 05 to 20 ...

Page 41: ...Instruction manual AQ F3x0 Feeder protection IED 41 162 Figure 3 23 ANSI IEEE Long Time Very Inverse operating curves with minimum and maximum pick up settings and TMS settings from 0 05 to 20 ...

Page 42: ...up settings and TMS settings from 0 05 to 20 Resetting characteristics for the function depends on the selected operating time characteristics For the IEC type IDMT characteristics the reset time is user settable and for the ANSI IEEE type characteristics the resetting time follows equation below Equation 3 2 Resetting characteristics for ANSI IEEE IDMT ...

Page 43: ... constants characterizing the selected curve G measured value of the Fourier base harmonic of the phase currents GS pick up setting TMS Time dial setting preset time multiplier The parameters and operating curve types follow corresponding standards presented in the table below Table 3 16 Parameters and operating curve types for the IDMT characteristics reset times ...

Page 44: ...Instruction manual AQ F3x0 Feeder protection IED 44 162 ...

Page 45: ...Minimum operating delay setting for the IDMT characteristics Additional delay setting is from 0 ms to 60000 ms with step of 1 ms Default setting is 100 ms Definite delay time 0 60000 ms by step of 1 ms Default 100 ms Definite time operating delay setting Setting range is from 0 ms to 60000 ms with step of 1 ms Default setting is 100 ms This parameter is not in use when IDMT characteristics is sele...

Page 46: ...ime overcurrent protection function tOP seconds Theoretical operating time if G GS without additional time delay G Measured value of the Fourier base harmonic of the residual current GS Pick up setting The structure of the algorithm consists of following modules Fourier calculation module calculates the RMS values of the Fourier components of the residual current Characteristics module compares th...

Page 47: ... start signal based on the Fourier components of the residual current in case if the user set pick up value is exceeded Trip signal is generated after the set definite time delay The function includes a blocking signal input which can be configured by user from either IED internal binary signals or IED binary inputs through the programmable logic ...

Page 48: ...erating delay setting for the IDMT characteristics Additional delay setting is from 0 ms to 60000 ms with step of 1 ms Default setting is 100 ms Definite delay time 0 60000 ms by step of 1 ms Default 100 ms Definite time operating delay setting Setting range is from 0 ms to 60000 ms with step of 1 ms Default setting is 100 ms This parameter is not in use when IDMT characteristics is selected for t...

Page 49: ...e the Fourier basic harmonic components of the three phase currents and those of the three phase voltages In the figure below is presented the structure of the directional overcurrent protection algorithm Figure 3 27 Structure of the directional overcurrent protection algorithm Based on the measured voltages and currents the function block selects the lowest calculated loop impedance of the six lo...

Page 50: ... values stored in the memory The input signals are the RMS values of the fundamental Fourier components of the three phase currents and three phase voltages and the three line to line voltages The internal output status signal for enabling the directional decision is true if both the three phase voltages and the three phase currents are above the setting limits The RMS voltage and current values o...

Page 51: ...ection of the function Can be disabled Definite time or IDMT operation based into IEC or ANSI IEEE standards Default setting is DefinitTime Start current 5 1000 by step of 1 Default 50 Pick up current setting of the function Setting range is from 5 of nominal current to 1000 with step of 1 Default setting is 50 of nominal current Min Delay 0 60000 ms by step of 1 ms Default 100 ms Minimum operatin...

Page 52: ...hose of the zero sequence voltage In the figure below is presented the structure of the residual directional overcurrent algorithm Figure 3 29 Structure of the residual directional overcurrent algorithm The block of the directional decision generates a signal of TRUE value if the UN 3Uo zero sequence voltage and the IN 3Io current is sufficient for directional decision and the angle difference bet...

Page 53: ...ic angle and R0A parameter is the operating angle In the figure FI parameter describes the measured residual current angle in relation to measured U0 signal and IN is the magnitude of the measured residual current In the figure described situation the measured residual current is inside of the set operating sector and the status of the function would be starting in Forward mode The protection func...

Page 54: ...r non directional operating angle mode wattmetric I0cos fi or varmetric I0sin fi mode Uo min 1 10 by step of 1 The threshold value for the 3Uo zero sequence voltage below this setting no directionality is possible of the rated voltage of the voltage transformer input Io min 1 50 by step of 1 The threshold value for the 3Io zero sequence current below this setting no operation is possible of the ra...

Page 55: ...lection of the function disabled and the timing characteristics Operation when enabled can be either Definite time or IDMT characteristic Start current 1 200 by step of 1 Pick up residual current Time Mult 0 05 999 by step of 0 01 Time dial multiplier setting used with IDMT operating time characteristics Min Time 0 60000 ms by step of 1 ms Minimum time delay for the inverse characteristics Def Tim...

Page 56: ... currents fundamental Fourier components If the difference between them is above the setting limit the function generates a start signal Structure of the current unbalance protection function is presented in the figure below Figure 3 32 Structure of the current unbalance protection algorithm The analogue signal processing principal scheme is presented in the figure below Figure 3 33 Analogue signa...

Page 57: ...ser The trip command is generated after the set defined time delay Table 3 21 Setting parameters of the current unbalance function Parameter Setting value range and step Description Operation On Off Selection for the function enabled or disabled Default setting is On which means function is enabled Start signal only Activated Deactivated Selection if the function issues either Start signal alone o...

Page 58: ... TOLF function includes total memory function of the load current conditions according to IEC 60255 The ambient temperature can be set manually If the calculated temperature calculated overtemperature ambient temperature is above the threshold values status signals are generated Alarm temperature Trip temperature and Unlock restart inhibit temperature Figure 3 34 The principal structure of the the...

Page 59: ... Activated Deactivated Selection if the function issues either Start signal alone or both Start and after set time delay Trip signal Default is that both signals are generated deactivated Start current 10 90 by step of 1 Pick up setting of the current unbalance Setting is the maximum allowed difference in between of the min and max phase currents Default setting is 50 Time delay 0 60000 ms by step...

Page 60: ...as elapsed Table 3 23 Setting parameters of the overvoltage function Parameter Setting value range and step Description Operation Off On Operating mode selection for the function Operation can be either enabled On or disabled Off Default setting is On Start voltage 30 130 by step of 1 Voltage pick up setting Default setting 63 Start signal only Activated Deactivated Selection if the function issue...

Page 61: ... can be either disabled Off or the operating mode can be selected to monitor single phase undervoltage two phases undervoltage or all phases undervoltage condition Default setting is 1 out of 3 which means that any phase under the setting limit will cause operation Start voltage 30 130 by step of 1 Voltage pick up setting Default setting is 90 Block voltage 0 20 by step of 1 Undervoltage blocking ...

Page 62: ...y has elapsed Table 3 25 Setting parameters of the residual overvoltage function Parameter Setting value range and step Description Operation Off On Operating mode selection for the function Operation can be either enabled On or disabled Off Default setting is On Start voltage 2 60 by step of 1 Voltage pick up setting Default setting 30 Start signal only Activated Deactivated Selection if the func...

Page 63: ...gh frequency can be an indication of island operation Accurate frequency measurement is also the criterion for the synchro check and synchro switch functions The frequency measurement is based on channel No 1 line voltage or channel No 4 busbar voltage of the voltage input module In some applications the frequency is measured based on the weighted sum of the phase voltages The accurate frequency m...

Page 64: ...equency is below the rated value The under frequency protection function is usually applied to increase generation or for load shedding to control the system frequency Another possible application is the detection of unintended island operation of distributed generation and some consumers In the island there is low probability that the power generated is the same as consumption accordingly the det...

Page 65: ...equency is below the rated value If the unbalance is large then the frequency changes rapidly The rate of change of frequency protection function is usually applied to reset the balance between generation and consumption to control the system frequency Another possible application is the detection of unintended island operation of distributed generation and some consumers In the island there is lo...

Page 66: ...setting is 200 ms 3 2 15 BREAKER FAILURE PROTECTION FUNCTION CBFP 50BF After a protection function generates a trip command it is expected that the circuit breaker opens and or the fault current drops below the pre defined normal level If not then an additional trip command must be generated for all backup circuit breakers to clear the fault At the same time if required a repeated trip command can...

Page 67: ...me Delay If repeated trip command is to be generated for the circuit breakers that are expected to open then the enumerated parameter Retrip must be set to On In this case at the end of the timer s the delay of which is set by the timer parameter Retrip Time Delay a repeated trip command is also generated The pulse duration of the trip command is shall the time defined by setting the parameter Pul...

Page 68: ... to disable the operation of the desired protection function s The inrush current detection function block analyses the second harmonic content of the current related to the fundamental harmonic If the content is high then the assigned status signal is set to true value If the duration of the active status is at least 25 ms then the resetting of the status signal is delayed by an additional 15 ms ...

Page 69: ...g is applied to the zero sequence current of the parallel line Full scheme faulty phase identification and directional signaling is provided Distance to fault evaluation is implemented Five independent distance protection zones are configured The operate decision is based on polygon shaped or MHO characteristics MHO or on offset circle characteristics configurable using AQtivate 300 software Load ...

Page 70: ...mpled values and Fourier components of three phase voltages Sampled values and Fourier components of three phase currents Sampled values and Fourier components of 3Iop the zero sequence current of the parallel line Binary inputs Setting parameters The outputs are Binary output status signals Measured values for displaying ...

Page 71: ...ion logic FAULT LOCATOR calculates the distance to fault after the trip command The following description explains the details of the individual components Principle of the impedance calculation The distance protection continuously measures the impedances in the six possible fault loops The calculation is performed in the phase to phase loops based on the line to line voltages and the difference o...

Page 72: ...on factor Equation presents the earth fault compensation factor Table above shows that the formula containing the complex earth fault compensation factor yields the correct impedance value in case of phase to earth faults only the other formula can be applied in case of phase to phase faults without ground In case of other kinds of faults three phase to earth phase to phase to earth both formulas ...

Page 73: ...of calculation of the impedances of the fault loops If the sampled values are suitable for the calculation after a zero crossing there are three sampled values above a defined limit 0 1In and the sum of the phase currents 3Io is above Iphase 4 then the numerical processes apply the following equations Figure 3 40 Equivalent circuit of the fault loop For the equivalent impedance elements of the fau...

Page 74: ... or cable section between the fault location and the relay location L1 is the faulty phase 3io iL1 iL2 iL3 is the sampled value of the zero sequence current of the protected line 3iop iL1p iL2p iL3p is the sampled value of the zero sequence current in parallel line And Rm is the real part of the mutual impedance between the protected and the parallel line Lm is the mutual inductance between the pr...

Page 75: ...ial equation is solved directly with sampled currents and voltages Under this method sections of the current wave where the form is not distorted by CT saturation are selected for the calculation The result of this calculation is matched to a quadrilateral characteristic which is 85 of the parameter setting value In case of CVT swing detection this calculation method has no effect on the operation...

Page 76: ...f the parallel line as measured in a dedicated input The three routines for the phase to phase loops get line to line voltages calculated from the sampled phase voltages and they get differences of the phase currents They do not need zero sequence currents for the calculation Table 3 32 Calculated values of the impedance module Measured value Dim Explanation RL1 j XL1 ohm Measured positive sequenc...

Page 77: ...arameter settings and additionally internal logic signals The explanation of these signals is as follows Table 3 33 Internal logic parameters of the impedance calculation Parameter Explanation P_nondir This logic parameter is true if no directionality is programmed i e the DIS21_Zn_EPar_ Operation Zone1 parameter where n 1 5 is set to NonDirectional for the individual zones ...

Page 78: ..._CALC module VOLT_OK_LOW The voltage can be applied for the calculation of the impedance if the three most recent sampled three values include a sample above the defined lower limit 5 of the nominal loop voltage but in this case the direction is to be decided using the voltage samples stored in the memory because the secondary swings of the capacitive voltage divider distort the sampled voltage va...

Page 79: ...efore during the first 35 ms the directional decision is based on healthy voltages R X f u i direction f Uhealthy i in the first 35 ms R X f u i direction f u i after 35 ms Calc F The currents are suitable but the voltages are too low there are no pre fault voltages stored in the memory but because of asymmetrical faults there are healthy voltages Therefore the directional decision is based on hea...

Page 80: ...lculated based on the actual currents and voltages but the direction of the fault the sign of R and X must be decided based on the voltage value stored in the memory 80 ms earlier The high voltage level setting assures that during the secondary swings of the voltage transformers no distorted signals are applied for the decision This procedure is possible only if there are stored values in the memo...

Page 81: ...2 the fault is in the forward direction The reverse direction is decided based on the compensated voltages added to the corresponding phase voltages If this resulting phase sequence is L1 L3 L2 the fault is in the backward direction If both phase sequences are L1 L2 L3 the direction of the fault is undefined Calculation method Calc F The currents are suitable but the voltages are too low there are...

Page 82: ...ase of a ground fault the positive sequence resistance of the tower grounding as well When testing the device using a network simulator the resistance of the fault location is to be applied to match the positive sequence setting values of the characteristic lines Figure 3 43 The characteristics of the distance protection in complex plane If a measured impedance point is inside the polygon the algo...

Page 83: ...esult is the setting of 6 x 5 status variables which indicate that the calculated impedance is within the processed MHO circle meaning that the impedance stage has started Polygon and MHO characteristics logic The calculated impedance values are compared one by one with the setting values of the corresponding characteristics This procedure is shown schematically in figures below The procedure is p...

Page 84: ...Instruction manual AQ F3x0 Feeder protection IED 84 162 Figure 3 45 Polygon characteristics logic ...

Page 85: ...mpedance in the fault loop L1N using parameters of the zones individually RL2 j XL2 1 5 Calculated impedance in the fault loop L2N using parameters of the zones individually RL3 j XL3 1 5 Calculated impedance in the fault loop L3N using parameters of the zones individually RL1L2 j XL1L2 1 5 Calculated impedance in the fault loop L1L2 using parameters of the zones individually RL2L3 j XL2L3 1 5 Cal...

Page 86: ...s of the distance protection function The distance protection function can operate only if the current is sufficient for impedance calculation Additionally a phase to ground fault is detected only if there is sufficient zero sequence current This function performs these preliminary decisions The current is considered to be sufficient for impedance calculation if it is above the level set by parame...

Page 87: ...Name Title Explanation DIS21_HTXkm_OLM_ Fault location Measured distance to fault in kilometers DIS21_HTXohm_OLM_ Fault react Measured reactance to fault DIS21_L1N_R_OLM_ L1N loop R Measured positive sequence resistance in L1N loop DIS21_L1N_X_OLM_ L1N loop X Measured positive sequence reactance in L1N loop DIS21_L2N_R_OLM_ L2N loop R Measured positive sequence resistance in L2N loop DIS21_L2N_X_O...

Page 88: ...e 1 ZL3 RL3 j XL3 ohm Measured positive sequence impedance in the L3N loop using the zero sequence current compensation factor for zone 1 ZL1L2 RL1L2 j XL1L2 ohm Measured positive sequence impedance in the L1L2 loop ZL2L3 RL2L3 j XL2L3 ohm Measured positive sequence impedance in the L2L3 loop ZL3L1 RL3L1 j XL3L1 ohm Measured positive sequence impedance in the L3L1 loop Fault location km Measured d...

Page 89: ...e protection function with MHO characteristic The binary input and output status signals of the dead line detection function are listed in tables below Table 3 41 The binary input signals of the distance protection function Table 3 42 The binary output status signals of the distance protection function ...

Page 90: ...AQ300 series devices have several LED s on the front panel The upper left LED indicates the state of the device Green means normal operation Yellow means WARNING state The device is booting while the protection functions are operable No time synchron signal is received There are some setting errors such as the rated frequency setting does not correspond to the measured frequency mismatch in vector...

Page 91: ...ed using the Common function block This additional signal is programmed by the user with the help of the graphic logic editor 3 The Local Remote state for generating command to or via the device The Local Remote state of the device can be toggled From the local front panel touch screen of the device The Local Remote selection can be extended using the Common function block There is possibility to ...

Page 92: ...Instruction manual AQ F3x0 Feeder protection IED 92 162 Figure 3 50 The function block of the Common function block Table 3 44 The binary input status of the common function block ...

Page 93: ... Source 0 0 means no external local remote setting is enabled the local LCD touch screen is the only source of toggling 3 3 2 TRIP LOGIC 94 The simple trip logic function operates according to the functionality required by the IEC 61850 standard for the Trip logic logical node This simplified software module can be applied if only three phase trip commands are required that is phase selectivity is...

Page 94: ...where two I TOC51 and I0 TOC51N trip signals are connected to two trip logic function blocks In this example we have a transformer protection supervising phase and residual currents on both sides of the transformer So in this case the protection function trips have been connected to their individual trip logic blocks for high voltage side and low voltage side After connecting the trip signals into...

Page 95: ...gnments can be modified or the same trip logic can activate multiple contacts by adding a new trip assignment Figure 3 4 Instructions on adding modifying trip assignment Trip contact connections for wirings can be found in Hardware configuration under Rack designer Preview or in Connection allocations During the parameter setting phase it should be taken care that the trip logic blocks are activat...

Page 96: ...nal indicating the dead or live state of the line Additional signals are generated to indicate if the phase voltages and phase currents are above the pre defined limits The task of the Dead Line Detection DLD function is to decide the Dead line Live line state Criteria of Dead line state all three phase voltages are below the voltage setting value AND all three currents are below the current setti...

Page 97: ...on is shown in figure bellow This block shows all binary input and output status signals that are applicable in the AQtivate 300 software Figure 3 52 The function of the dead line detection function The binary input and output status signals of the dead line detection function are listed in tables below Table 3 48 The binary input signal of the dead line detection function ...

Page 98: ...t threshold for detecting the dead line status If all the phase to ground voltages are under the setting Min operate voltage and also all the phase currents are under the Min operate current setting the line status is considered Dead Default setting is 10 3 3 4 VOLTAGE TRANSFORMER SUPERVISION VTS The voltage transformer supervision function generates a signal to indicate an error in the voltage tr...

Page 99: ...omponent I2 are below the preset current values The voltage transformer supervision function can be triggered if Live line status is detected for at least 200 ms The purpose of this delay is to avoid mal operation at line energizing if the poles of the circuit breaker make contact with a time delay The function is set to be inactive if Dead line status is detected If the conditions specified by th...

Page 100: ...tion logic of the voltage transformer supervision and dead line detection The voltage transformer supervision logic operates through decision logic presented in the following figure DLD_ DeadLine_ GrI_ DLD_StIL3_GrI _ DLD_StIL2_GrI _ DLD_StIL1_GrI _ DLD_StUL3_GrI _ DLD_StUL2_GrI _ DLD_StUL1_GrI _ DLD_ LineOK_GrI_ VTS_ Fail_GrI_ VTS_Fail_int_ NOT OR AND t 200 t 100 t 100 S R AND NOT NOT OR S R OR A...

Page 101: ...n is shown in figure below This block shows all binary input and output status signals that are applicable in the graphic equation editor Figure 3 55 The function block of the voltage transformer supervision function The binary input and output status signals of voltage transformer supervision function are listed in tables below Binary status signal Explanation VTS_Blk_GrO_ Output status defined b...

Page 102: ... 50 by step of 1 Negative sequence voltage setting limit Default setting is 10 Start INeg 10 50 by step of 1 Negative sequence current setting limit Default setting is 10 3 3 5 CURRENT TRANSFORMER SUPERVISION CTS The current transformer supervision function can be applied to detect unexpected asymmetry in current measurement The function block selects maximum and minimum phase currents fundamental...

Page 103: ...rs of the current transformer supervision function Parameter Setting value range and step Description Operation On Off Operating mode selection for the function Operation can be either disabled Off or enabled ON Default setting is enabled IPhase Diff 50 90 by step of 1 Phase current difference setting Default setting is 80 Time delay 100 60000ms CT supervision time delay Default setting is 1000ms ...

Page 104: ...sing are as follows The difference of the voltage magnitudes is below the set limit The difference of the frequencies is below the set limit The angle difference between the voltages on both sides of the circuit breaker is within the set limit The function processes both automatic reclosing and manual close commands The limits for automatic reclosing and manual close commands can be set independen...

Page 105: ...eived then synchronous switching is attempted within the set time out In this case the rotating vectors must fulfill the conditions for safe switching within the set waiting time at the moment the contacts of the circuit breaker are closed the voltage vectors must match each other with appropriate accuracy For this mode of operation the expected operating time of the circuit breaker must be set as...

Page 106: ...uation block duplicated for manual switching and for automatic switching The SYN25_Com block selects the appropriate voltages for processing and calculates the voltage difference the frequency difference and the phase angle difference between the selected voltages The magnitude of the selected voltages is passed for further evaluation These values are further processed by the evaluation software b...

Page 107: ...erated The processed line voltage is selected based on the preset parameter Voltage select The choice is L1 N L2 N L3 N L1 L2 L2 L3 or L3 L1 The parameter value must match the input voltages received from the bus sections The active bus section is selected by the input signal Bus select If this signal is logic TRUE then the voltage of Bus2 is selected for evaluation The software block SYN25_Eva is...

Page 108: ...tching is decided Dead bus Dead line Dead bus Live line Live bus Dead line or Live bus Live line The parameters for decision are U Live and U Dead The parameters Energizing Auto Manual enable the operation individually The choice is Off DeadBus LiveLine LiveBus DeadLine Any energ case In simple energizing modes no further checking is needed This mode selection is bypassed if the parameter Operatio...

Page 109: ...en the relative rotation of the voltage vectors is monitored The command is generated before the synchronous position taking the breaker closing time into consideration Breaker Time The pulse duration is defined by the parameter Close Pulse In case of slow rotation and if the vectors are for long time near opposite vector positions no switching is possible therefore the waiting time is limited by ...

Page 110: ...nal of the synchro check synchro switch function Binary status signal Title Explanation SYN25_RelA_GrI_ Release Auto Releasing the close command initiated by the automatic reclosing function SYN25_InProgA_GrI_ SynInProgr Auto Switching procedure is in progress initiated by the automatic reclosing function SYN25_UOKA_GrI_ Udiff OK Auto The voltage difference is appropriate for automatic closing com...

Page 111: ...e for automatic switching Selection can be automatic switching off on or bypassed If the Operation Auto is set to Off automatic switch checking is disabled If selection is ByPass Automatic switching is enabled with bypassing the bus and line energization status checking When the selection is On also the energization status of bus and line are checked before processing the command Default setting i...

Page 112: ...ng of the manual synchroswitch mode If the measured voltage difference is below this setting the condition applies Default setting is 10 MaxPhaseDiff Man 5 80 deg by step of 1 deg Phase difference checking of the manual synchroswitch mode If the measured phase difference is below this setting the condition applies Default setting is 20 deg FrDiff SynChk Man 0 02 0 50 Hz by step of 0 01 Hz Frequenc...

Page 113: ...ady for operation which is signaled via binary input CB Ready The preset parameter value CB Supervision time decides how long the automatic reclosing function is allowed to wait at the end of the dead time for this signal If the signal is not received during this dead time extension then the automatic reclosing function terminates and after a dynamic blocking time depending on the preset parameter...

Page 114: ...n signal is received The start of dead time counter of any reclosing cycle can be delayed The delay is activated if the value of the Dead Time St Delay status signal is TRUE This delay is defined by the timer parameter DeadTime Max Delay For all four reclosing cycles separate dead times can be defined for line to line faults and for earth faults The timer parameters for line to line faults are 1 D...

Page 115: ... case of relatively rotating voltage vectors for the circuit breaker to make contact at the synchronous state of the rotating vectors For this calculation the closing time of the circuit breaker must be defined This mode of operation is indicated by the output variable CloseRequ SynSwitch If no switching is possible during the running time of this timer then the automatic reclosing function enters...

Page 116: ...eter Dynamic Blocking time During this time no reclosing command is generated The conditions to start the dynamic blocked state are There is no trip command during the Action time The duration of the starting impulse for the MV automatic reclosing function is too long If no CB ready signal is received at the intended time of reclosing command The dead time is prolonged further then the preset para...

Page 117: ...abled Enable CB state monitoring for Not Ready state Default setting is Disabled Reclaim time 100 100000 ms by step of 10 ms Reclaim time setting Default setting is 2000 ms Close Command time 10 10000 ms by step of 10 ms Pulse duration setting for the CLOSE command from the IED to circuit breaker Default setting is 100 ms Dynamic Blocking time 0 100000 ms by step of 10 ms Setting of the dynamic bl...

Page 118: ...ation of the 2nd reclosing cycle trip command Default setting is Disabled Accelerate 3 Trip Enabled Disabled Acceleration of the 3rd reclosing cycle trip command Default setting is Disabled Accelerate 4 Trip Enabled Disabled Acceleration of the 4th reclosing cycle trip command Default setting is Disabled Accelerate final Trip Enabled Disabled Acceleration of the final trip command Default setting ...

Page 119: ...nSOTF is delayed by a timer SOTF Drop Delay set by the user The timer parameter is common for both the automatic and manual close command The operation of the switch onto fault detection function is shown in Figure below Figure 3 3 8 1 The scheme of the switch onto fault preparation The binary input signals of the switch onto fault detection function are CBClose Manual close command to the circuit...

Page 120: ...tion Table 3 61 The timer parameter of the switch onto fault detection function Table 3 62 The binary output status signals of the switch onto fault detection function Table 3 63 The binary input signals of the switch onto fault detection function Table 3 64 The timer parameter of the switch onto fault detection function ...

Page 121: ...sured voltage is below a level defined by a dedicated parameter and at the same time above a minimum level specified by another parameter setting For the evaluation the duration of the voltage sag should be between a minimum and a maximum time value defined by parameters Figure 3 3 Voltage sag Voltage swell when the RMS value of the measured voltage is above a level defined by a dedicated paramete...

Page 122: ...ed includes the duration and the minimum value A voltage swell is detected if any of the three phase to phase voltages increases to a value above the Swell limit setting In this state the binary output Swell signal is activated The signal resets if all of the three phase to phase voltages fall below the Swell limit or if the set time Maximum duration elapses If the voltage returns to normal state ...

Page 123: ...ction algorithm measures the duration of the short time voltage variation The last variation is displayed The sag and swell detection algorithm offers measured values status signals and counter values for displaying The duration of the latest detected short time voltage variation Binary signals o Swell o Sag o Interruption Timer values o Sag counter o Swell counter Figure 3 6 Sag and swell monitor...

Page 124: ... interruption is detected Default setting is 20 Minimum duration 30 60000ms by steps of 1ms Lower time limit default setting is 50ms Maximum duration 100 60000ms by step of 1ms Upper time limit default setting is 10000ms 3 3 10 DISTURBANCE RECORDER The disturbance recorder function can record analog signals and binary status signals These signals are user configurable The disturbance recorder func...

Page 125: ...ing condition must be reset for a new recording procedure to start The records are stored in standard COMTRADE format The configuration is defined by the file cfg The data are stored in the file dat Plain text comments can be written in the file inf The procedure for downloading the records includes a downloading of a single compressed zip file Downloading can be initiated from a web browser tool ...

Page 126: ...setting is 1000 ms 3 3 11 EVENT RECORDER The events of the device and those of the protection functions are recorded with a time stamp of 1 ms time resolution This information with indication of the generating function can be checked on the touch screen of the device in the Events page or using an Internet browser of a connected computer Table 3 69 List of events Event Explanation Voltage transfor...

Page 127: ...eral Start General Start General Trip General Trip Current unbalance protection function 2 Harm Restraint Second harmonic restraint Definite time overvoltage protection function TOV59 Low Start L1 Low setting stage start signal in phase L1 Low Start L2 Low setting stage start signal in phase L2 Low Start L3 Low setting stage start signal in phase L3 Low General Start Low setting stage general star...

Page 128: ...neral start signal High General Trip High setting stage general trip command Rate of change of frequency protection function FRC81 Low General Start Low setting stage general start signal Low General Trip Low setting stage general trip command High General Start High setting stage general start signal High General Trip High setting stage general trip command Breaker failure protection function BRF...

Page 129: ...l Status value Status of the circuit breaker Enable Close Close command is enabled Enable Open Open command is enabled Local Local mode of operation Operation counter Operation counter CB OPCap Disconnector Line Status value Status of the circuit breaker Enable Close Close command is enabled Enable Open Open command is enabled Local Local mode of operation Operation counter Operation counter DC OP...

Page 130: ...e Fourier fundamental harmonic voltage component in phase L3 Angle Ch U3 Phase angle of the Fourier fundamental harmonic voltage component in phase L3 Voltage Ch U4 RMS value of the Fourier fundamental harmonic voltage component in Channel U4 Angle Ch U4 Phase angle of the Fourier fundamental harmonic voltage component in Channel U4 CT4 module Current Ch I1 RMS value of the Fourier fundamental har...

Page 131: ...se L3 Voltage L1 True RMS value of the voltage in phase L1 Voltage L2 True RMS value of the voltage in phase L2 Voltage L3 True RMS value of the voltage in phase L3 Voltage L12 True RMS value of the voltage between phases L1 L2 Voltage L23 True RMS value of the voltage between phases L2 L3 Voltage L31 True RMS value of the voltage between phases L3 L1 Frequency Frequency 3 3 13 STATUS MONITORING T...

Page 132: ...ection functions OCN trip Trip command generated by the residual overcurrent protection functions Therm Trip Trip command of the line thermal protection function Unbal Trip Trip command of the current unbalance protection function Inrush Inrush current detected Voltage trip Trip command generated by the voltage related functions Frequ trip Trip command generated by the frequency related functions ...

Page 133: ...ia or the ports can be either serial fiber optic or RJ 45 or Ethernet fiber optic Communication ports are always in the CPU module of the device The AQ F3x0 feeder protection IED communicates using IEC 61850 IEC 101 IEC 103 IEC 104 Modbus RTU DNP3 0 and SPA protocols For details of each protocol refer to respective interoperability lists For IRIG B time synchronization binary input module O12 chan...

Page 134: ...Instruction manual AQ F3x0 Feeder protection IED 134 162 5 CONNECTIONS 5 1 BLOCK DIAGRAM AQ F350 EXAMPLE Figure 5 1 Block diagram of AQ F350 with a digital input card DI12 and a digital output card DO8 ...

Page 135: ...Instruction manual AQ F3x0 Feeder protection IED 135 162 5 2 BLOCK DIAGRAM AQ F350 ALL OPTIONS Figure 5 2 Block diagram of AQ F350 with all options installed ...

Page 136: ...Instruction manual AQ F3x0 Feeder protection IED 136 162 5 3 CONNECTION EXAMPLE Figure 5 3 Connection example of AQ F350 feeder protection IED ...

Page 137: ...hown in the figures below Visit https configurator arcteq fi to see all of the available options Figure 6 1 An example module arrangement configuration of the AQ F350 IED Table 6 1 Hardware modules description Position Module identifier Explanation A PS 2101 Power supply unit 85 265 VAC 88 300 VDC C CT 5151 Analog current input module D VT 2211 Analog voltage input module E TRIP 2101 Trip relay ou...

Page 138: ...Explanation A B PS 2101 Power supply unit 85 265 VAC 88 300 VDC D CT 5151 Analog current input module F VT 2211 Analog voltage input module H TRIP 1101 Trip relay output module 4 tripping contacts K O12 1101 Binary input module 12 inputs threshold 110 VDC O R8 00 Signaling output module 8 output contacts B U Spare See order codes chapter 8 for options J CPU 1201 Processor and communication module ...

Page 139: ...meters After power up the RDSP processor starts up with the previously saved configuration and parameters Generally the power up procedure for the RDSP and relay functions takes approx 1 sec That is to say it is ready to trip within this time CDSP s start up procedure is longer because its operating system needs time to build its file system initializing user applications such as HMI functions and...

Page 140: ...onsumption IED system fault contacts NC and NO device fault contact and also assignable to user functions All the three relay contact points NO NC COM are accessible to users 80V 300VDC input range AC power is also supported Redundant applications which require two independent power supply modules can be ordered optionally On board self supervisory circuits temperature and voltage monitors Short c...

Page 141: ...ut Dedicated synchronization input input channel 1 is used for this purpose The binary input modules are Rated input voltage 110 220Vdc Clamp voltage falling 0 75Un rising 0 78Un Digitally filtered per channel Current drain approx 2 mA per channel 12 inputs IRIG B timing and synchronization input No Name 1 BIn_F01 2 BIn_F02 3 BIn_F03 4 Opto 1 3 5 BIn_F04 6 BIn_F05 7 BIn_F06 8 Opto 4 6 9 BIn_F07 10...

Page 142: ...rmat of the internal circuits This module is also used as an external IRIG B synchronization input Dedicated synchronization input input channel 1 is used for this purpose The binary input modules are Rated input voltage 110 220Vdc Clamp voltage falling 0 64Un rising 0 8Un Digitally filtered per channel Current drain approx 2 mA per channel 16 inputs IRIG B timing and synchronization input ...

Page 143: ...ltage 250 V AC DC Continuous carry 8 A Breaking capacity L R 40ms at 220 V DC 0 2 A 8 contacts 7 NO and 1 NC No Name 1 BOut_H01 Common 2 BOut_H01 NO 3 BOut_H02 Common 4 BOut_H02 NO 5 BOut_H03 Common 6 BOut_H03 NO 7 BOut_H04 Common 8 BOut_H04 NO 9 BOut_H05 Common 10 BOut_H05 NO 11 BOut_H06 Common 12 BOut_H06 NC 13 BOut_H07 Common 14 BOut_H07 NO 15 BOut_H08 Common 16 BOut_H08 NC H R8 80 ...

Page 144: ...ntrolling The main characteristics of the trip module 4 independent tripping circuits High speed operation Rated voltage 110V 220V DC Continuous carry 8 A Making capacity 0 5s 30 A Breaking capacity L R 40ms at 220 VDC 4A Trip circuit supervision for each trip contact No Name 1 Trip1 2 Trip1 3 Trip1 NO 4 Trip 2 5 Trip 2 6 Trip 2 NO 7 Trip 3 8 Trip 3 9 Trip 3 NO 10 Trip 4 11 Trip 4 12 Trip 4 NO E T...

Page 145: ...reduced burden in channel VT4 In this module the burden is 50 mVA The main characteristics of the voltage measurement module Number of channels 4 Rated frequency 50Hz 60Hz Selectable rated voltage Un 100 3 100V 200 3 200V by parameter Voltage measuring range 0 05 Un 1 2 Un Continuous voltage withstand 250 V Power consumption of voltage input 1 VA at 200V with special CVT module the burden is 50 mV...

Page 146: ...tware parameter either 1 A or 5 A Table 6 3 Connector allocation of the current measurement module I Number of channels 4 Rated frequency 50Hz 60Hz Electronic iron core flux compensation Low consumption 0 1 VA at rated current Current measuring range 35 x In Selectable rated current 1A 5A by parameter Thermal withstand 20 A continuously o 500 A for 1 s o 1200 A for 10 ms Relative accuracy 0 5 Meas...

Page 147: ...Instruction manual AQ F3x0 Feeder protection IED 147 162 6 9 INSTALLATION AND DIMENSIONS Figure 6 2 Dimensions of the AQ 35x IED ...

Page 148: ...Instruction manual AQ F3x0 Feeder protection IED 148 162 Figure 6 3 Panel cut out and spacing of AQ 35x IED ...

Page 149: ...Instruction manual AQ F3x0 Feeder protection IED 149 162 Figure 6 4 Dimensions of the AQ 39x IED ...

Page 150: ...Instruction manual AQ F3x0 Feeder protection IED 150 162 Figure 6 5 Panel cut out and spacing of the AQ 39x IED ...

Page 151: ...p current inaccuracy 2 Reset ratio 0 95 Operate time at 2 In Peak value calculation Fourier calculation 15 ms 25 ms Reset time 16 25 ms Transient overreach Peak value calculation Fourier calculation 80 2 Three phase time overcurrent protection I I 50 51 Pick up current inaccuracy 2 Operation time inaccuracy 5 or 15ms Reset ratio 0 95 Minimum operating time with IDMT 35ms Reset time Approx 35ms Tra...

Page 152: ...2 Residual time overcurrent protection I0 I0 51N Pick up current inaccuracy 2 Operation time inaccuracy 5 or 15ms Reset ratio 0 95 Minimum operating time with IDMT 35ms Reset time Approx 35ms Transient overreach 2 Pickup time 25 30ms 7 1 2 DIRECTIONAL OVERCURRENT PROTECTION FUNCTIONS Three phase directional overcurrent protection function IDir IDir 67 Pick up current inaccuracy 2 Operation time in...

Page 153: ... Pickup time 25 30ms Angular inaccuracy 3 7 1 3 VOLTAGE PROTECTION FUNCTIONS Overvoltage protection function U U 59 Pick up starting inaccuracy 0 5 Reset time U Un U 0 50 ms 40 ms Operation time inaccuracy 15 ms Undervoltage protection function U U 27 Pick up starting inaccuracy 0 5 Reset time U Un U 0 50 ms 40 ms Operation time inaccuracy 15 ms Residual overvoltage protection function U0 U0 59N P...

Page 154: ...perating range inaccuracy 30mHz Effective range inaccuracy 2mHz Minimum operating time 100ms Operation time inaccuracy 10ms Reset ratio 0 99 Rate of change of frequency protection function df dt df dt df dt df dt 81R Effective operating range 5 5Hz sec Pick up inaccuracy 0 01Hz sec Minimum operating time 100 ms Operation time inaccuracy 15ms 7 1 5 OTHER PROTECTION FUNCTIONS Current unbalance prote...

Page 155: ...tive range 20 2000 of In Voltage effective range 2 110 of Un Operation inaccuracy current voltage 1 Impedance effective range 0 1 200 Ohm In 1A 0 1 40 Ohm In 5A Impedance operation inaccuracy 5 Zone static range 48 52Hz 49 5 50 5Hz Zone static inaccuracy 5 48 52Hz 2 49 5 50 5Hz Zone angular inaccuracy 3 Minimum operate time 20ms Typical operate time 25ms Operate time inaccuracy 3ms Reset time 16 2...

Page 156: ...ting value or 20ms Dead line detection DLD Pick up voltage inaccuracy 1 Operation time inaccuracy 20ms Reset ratio 0 95 Trip logic 94 Impulse time duration accuracy 3ms 7 3 CONTROL FUNCTIONS Synchrocheck function du df 25 Rated Voltage Un 100 200V setting parameter Voltage effective range 10 110 of Un Voltage inaccuracy 1 of Un Frequency effective range 47 5 52 5 Hz Frequency inaccuracy 10mHz Phas...

Page 157: ... power consumption 30W 7 4 1 CURRENT MEASUREMENT MODULE Nominal current 1 5A parameter settable 0 2A ordering option Number of channels per module 4 Rated frequency 50Hz 60Hz ordering option Burden 0 1VA at rated current Thermal withstand 20A continuous 500A for 1s 1200A for 10ms Current measurement range 0 50xIn Power consumption at rated current 0 01 VA with 1A rated current 0 25 VA with 5A rate...

Page 158: ...Ux 25 of rated voltage Phase angle accuracy 0 5 º at Ux 25 of rated voltage 7 4 3 HIGH SPEED TRIP MODULE Rated voltage Un 110 220VDC Max withstand voltage 242V DC Number of outputs per module 4 Continuous carry 8A Making capacity 30A 0 5s Breaking capacity 4A L R 40ms 220Vdc 7 4 4 BINARY OUTPUT MODULE Rated voltage Un 250Vac dc Number of outputs per module 7 NO 1 NC Continuous carry 8A Breaking ca...

Page 159: ...4kV 5 50ns other inputs and outputs 4kV 5 50ns Surge According to EN61000 4 5 09 96 level 4 Between wires 2 kV 1 2 50μs Between wire and earth 4 kV 1 2 50μs RF electromagnetic field test According to EN 61000 4 3 class III f 80 1000 MHz 10V m Conducted RF field According to EN 61000 4 6 class III f 150 kHz 80 MHz 10V 7 5 2 VOLTAGE TESTS Insulation test voltage acc to IEC 60255 5 2 kV 50Hz 1min Imp...

Page 160: ...Instruction manual AQ F3x0 Feeder protection IED 160 162 7 5 5 ENVIRONMENTAL CONDITIONS Specified ambient service temp range 10 55 C Transport and storage temp range 40 70 C ...

Page 161: ...Instruction manual AQ F3x0 Feeder protection IED 161 162 8 ORDERING INFORMATION Visit https configurator arcteq fi to build a hardware configuration define an ordering code and get a module layout image ...

Page 162: ...urer information Arcteq Ltd Finland Visiting and postal address Wolffintie 36 F 11 65200 Vaasa Finland Contacts Phone general and commercial issues office hours GMT 2 358 10 3221 370 Fax 358 10 3221 389 url www arcteq fi email sales sales arcteq fi email technical support support arcteq fi ...

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