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Arcteq AQ F3 0 Series Instruction Manual

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INSTRUCTION MANUAL
AQ F3x0 – Feeder protection IED

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  • Page 1 INSTRUCTION MANUAL AQ F3x0 – Feeder protection IED...
  • Page 2 Instruction manual –AQ F3x0 Feeder protection IED 2 (162 Revision 1.00 Date November 2010 Changes The first revision. Revision 1.01 Date January 2011 Changes HW construction and application drawings revised Revision 1.02 Date February 2011 Changes Directional earthfault function (67N) revised Synchrocheck chapter revised Voltage measurement module revised CPU module description added...
  • Page 3 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 material. We reserve right to changes without further notice.

  • Page 4: Table Of Contents

    Instruction manual –AQ F3x0 Feeder protection IED 4 (162 TABLE OF CONTENTS 1 ABBREVIATIONS ......................7 2 GENERAL ......................... 8 3 SOFTWARE SETUP OF THE IED ..................9 Measurements ..................... 10 3.1.1 Current measurements and scaling ............10 3.1.2 Voltage measurements and scaling ............13 3.1.3 Line measurement ..................
  • Page 5 Instruction manual –AQ F3x0 Feeder protection IED 5 (162 3.3.10 Disturbance recorder ................124 3.3.11 Event recorder ..................126 3.3.12 Measured values ..................130 3.3.13 Status monitoring the switching devices ............ 131 3.3.14 Trip circuit supervision ................131 3.3.15 LED assignment ..................132 4 SYSTEM INTEGRATION ....................
  • Page 6 Instruction 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: Abbreviations

    Instruction manual –AQ F3x0 Feeder protection IED 7 (162 BBREVIATIONS CB – Circuit breaker CBFP – Circuit breaker failure protection CT – Current transformer CPU – Central Processing Unit EMC – Electromagnetic compatibility HMI – Human Machine Interface HW – Hardware IED –...

  • Page 8: General

    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.

  • Page 9: Software Setup Of The Ied

    Instruction manual –AQ F3x0 Feeder protection IED 9 (162 OFTWARE SETUP OF THE In this chapter are presented the protection and control functions as well as the monitoring functions. The implemented protection functions are listed in Table 3-1. The function blocks are described in details in following chapters.

  • Page 10: Measurements

    Instruction manual –AQ F3x0 Feeder protection IED 10 (162 3.1 M EASUREMENTS 3.1.1 C URRENT MEASUREMENTS AND SCALING If the factory configuration includes a current transformer hardware module, the current input function block is automatically configured among the software function blocks. Separate current input function blocks are assigned to each current transformer hardware module.
  • Page 11 Instruction manual –AQ F3x0 Feeder protection IED 11 (162 Figure 3-1 Example connection Phase current CT: Ring core CT in Input I0: CT primary 100A I0CT primary 10A CT secondary 5A I0CT secondary 1A Phase current CT secondary currents starpoint is towards the line. Figure 3-2 Example connection with phase currents connected into summing “Holmgren”...
  • Page 12 Instruction manual –AQ F3x0 Feeder protection IED 12 (162 The function block also provides parameters for setting the primary rated currents of the main current transformer (Rated Primary I1-3 and Rated Primary I4). This function block does not need that parameter settings. These values are passed on to function blocks such as displaying primary measured values, primary power calculation, etc.

  • Page 13: Voltage Measurements And Scaling

    Instruction manual –AQ F3x0 Feeder protection IED 13 (162 the vector calculated for the first voltage input channel of the first applied voltage input module. If no voltage input module is configured, then the reference vector (vector with angle 0 degree) is the vector calculated for the first current input channel of the first applied current input module.
  • Page 14 Instruction manual –AQ F3x0 Feeder protection IED 14 (162 The connection of the first three VT secondary windings must be set to reflect actual physical connection of the main VTs. The associated parameter is “Connection U1-3“. The selection can be: Ph-N, Ph-Ph or Ph-N-Isolated. The Ph-N option is applied in solidly grounded networks, where the measured phase voltage is never above 1.5-Un.
  • Page 15 Instruction manual –AQ F3x0 Feeder protection IED 15 (162 Figure 3-4 Phase-to-phase connection. Ph-N Voltage: Residual voltage: Rated Primary U1-3: 20kV Rated Primary U4: 11.54kV Range: Type 100 (=20kv/√3) The fourth input is reserved for zero sequence voltage or for a voltage from the other side of the circuit breaker for synchron switching.
  • Page 16 Instruction manual –AQ F3x0 Feeder protection IED 16 (162 Table 3-5 Enumerated parameters of the voltage 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.

  • Page 17: Line Measurement

    Instruction manual –AQ F3x0 Feeder protection IED 17 (162 Table 3-8 On-line measured analogue values of the voltage input function NOTE1: The scaling of the Fourier basic component is such if pure sinusoid 57V RMS of the rated frequency is injected, the displayed value is 57V. The displayed value does not depend on the parameter setting values “Rated Secondary”.
  • Page 18 Instruction manual –AQ F3x0 Feeder protection IED 18 (162 3.1.3.1 Reporting the measured values and the changes It is usual for the SCADA systems that they sample the measured and calculated values in regular time periods and additionally they receive the changed values as reports at the moment when any significant change is detected in the primary system.
  • Page 19 Instruction manual –AQ F3x0 Feeder protection IED 19 (162 Table 3-9 Example: Measured values in a configuration for solidly 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 Instruction manual –AQ F3x0 Feeder protection IED 20 (162 3.1.3.4 Reporting the measured values and the changes For reporting, additional information is needed, which is defined in parameter setting. As an example, in a configuration for solidly grounded networks the following parameters are available: Table 3-10 The enumerated parameters of the line measurement function.
  • 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 Instruction manual –AQ F3x0 Feeder protection IED 22 (162 Figure 3-6 Reporting if “Amplitude” mode is selected 3.1.3.6 “Integral” mode of reporting If the “Integrated” 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.
  • Page 23 Instruction manual –AQ F3x0 Feeder protection IED 23 (162 Figure 3-7 Reporting if “Integrated” mode is selected 3.1.3.7 Periodic reporting Periodic reporting is 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.

  • Page 24: Protection Functions

    Instruction manual –AQ F3x0 Feeder protection IED 24 (162 3.2 P ROTECTION FUNCTIONS 3.2.1 T I>>> (50) HREE PHASE INSTANTANEOUS OVERCURRENT The instantaneous overcurrent protection function operates according to instantaneous characteristics, using the three sampled phase currents. The setting value is a parameter, and it can be doubled with dedicated input binary signal.
  • Page 25 Instruction manual –AQ F3x0 Feeder protection IED 25 (162 harmonic components of the phase currents into the setting value. Decision logic module generates the trip signal of the function. In the figure below. is presented the structure of the instantaneous overcurrent algorithm. Figure 9: Structure of the instantaneous overcurrent algorithm.

  • Page 26: Residual Instantaneous Overcurrent I0>>> (50N)

    Instruction manual –AQ F3x0 Feeder protection IED 26 (162 Parameter Setting value, range Description and step Operation Operating mode selection of the function. Can be disabled, Peak value operating based into measured current peak values or operating Fundamental value based into calculated current fundamental frequency RMS values.
  • Page 27 Instruction manual –AQ F3x0 Feeder protection IED 27 (162 Pick-up setting value The structure of the algorithm consists of following modules. Fourier calculation module calculates the RMS values of the Fourier components of the residual current. Peak selection module is an alternative for the Fourier calculation module and the peak selection module selects the peak values of the residual currents individually.
  • Page 28 Instruction manual –AQ F3x0 Feeder protection IED 28 (162 Parameter Setting value, range Description and step Operation Operating mode selection of the function. Can be disabled, Peak value operating based into measured current peak values or Fundamental value operating based into calculated current...

  • Page 29: Three-Phase Time Overcurrent I>, I>> (50/51)

    Instruction manual –AQ F3x0 Feeder protection IED 29 (162 3.2.3 T I>, I>> (50/51) HREE PHASE TIME OVERCURRENT Three phase time overcurrent function includes the definite time and IDMT characteristics according to the IEC and IEEE standards. The function measures the fundamental Fourier components of the measured three phase currents.
  • Page 30 Instruction manual –AQ F3x0 Feeder protection IED 30 (162 Figure 3-13 Operating characteristics of the definite time overcurrent protection function. tOP (seconds) Theoretical operating time if G> GS (without additional time delay), Measured peak value or Fourier base harmonic of the phase currents Pick-up setting value IDMT operating characteristics depend on the selected curve family and curve type.
  • Page 31 Instruction manual –AQ F3x0 Feeder protection IED 31 (162 pick-up setting time dial setting / preset time multiplier 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 Instruction manual –AQ F3x0 Feeder protection IED 32 (162 Additionally a minimum time delay can be defined by parameter TOC51_MinDel_TPar_ (Min Time Delay). This delay is valid if it is longer than t(G), defined by the formula above. The inverse characteristic is valid above G =1,1* G .
  • 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 Instruction manual –AQ F3x0 Feeder protection IED 42 (162 Figure 3-24: ANSI/IEEE Long Time Extremely Inverse operating curves with minimum and maximum pick up settings and TMS settings from 0.05 to 20. Resetting characteristics for the function depends on the selected operating time characteristics.
  • Page 43 Instruction manual –AQ F3x0 Feeder protection IED 43 (162 tr(G)(seconds) Theoretical reset time with constant value of G constants characterizing the selected curve α constants characterizing the selected curve measured value of the Fourier base harmonic of the phase currents pick-up setting TMS Time dial setting / preset time multiplier The parameters and operating curve types follow corresponding standards presented in the...
  • Page 44 Instruction manual –AQ F3x0 Feeder protection IED 44 (162...
  • Page 45 Instruction manual –AQ F3x0 Feeder protection IED 45 (162 Error! Not a valid filename. Table 3-17: Setting parameters of the time overcurrent function Parameter Setting value, range Description and step Operation Operating mode selection of the function. Can be disabled, DefinitTime Definite time or IDMT operation based into IEC or ANSI/IEEE IEC Inv...

  • Page 46: Residual Time Overcurrent I0>, I0>> (51N)

    Instruction manual –AQ F3x0 Feeder protection IED 46 (162 3.2.4 R I0>, I0>> (51N) ESIDUAL TIME OVERCURRENT The residual definite time overcurrent protection function operates with definite time characteristics, using the RMS values of the fundamental Fourier component of the neutral or residual current (IN=3Io).
  • Page 47 Instruction manual –AQ F3x0 Feeder protection IED 47 (162 Figure 3-26: Structure of the residual time overcurrent algorithm. The algorithm generates a 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.
  • Page 48 Instruction manual –AQ F3x0 Feeder protection IED 48 (162 Table 3-18: Setting parameters of the residual time overcurrent function Parameter Setting value, range Description and step Operation Operating mode selection of the function. Can be disabled, DefinitTime Definite time or IDMT operation based into IEC or IEC Inv ANSI/IEEE standards.

  • Page 49: Three-Phase Directional Overcurrent Idir>, Idir>> (67)

    Instruction manual –AQ F3x0 Feeder protection IED 49 (162 3.2.5 T >, ID >> (67) HREE PHASE DIRECTIONAL OVERCURRENT The directional three-phase overcurrent protection function can be applied on networks where the overcurrent protection must be supplemented with a directional decision. The inputs of the function are the Fourier basic harmonic components of the three phase currents and those of the three phase voltages.
  • Page 50 Instruction manual –AQ F3x0 Feeder protection IED 50 (162 decision is “Forward” if the voltage and the current is sufficient for directional decision, and the angle difference between the vectors is inside the set operating characteristics. If the angle difference between the vectors is outside of the set characteristics the directional decision is “Backward”.
  • Page 51 Instruction manual –AQ F3x0 Feeder protection IED 51 (162 Operating time of the function can be definite time or IDMT based on user selection. Operating characteristics of the IDMT function are presented in the chapter 3.1.2 Three-phase time overcurrent protection I>, I>> (50/51). Table 3-19: Setting parameters of the directional overcurrent function Parameter Setting value, range...

  • Page 52: Residual Directional Overcurrent I0Dir >, I0Dir>> (67N)

    Instruction manual –AQ F3x0 Feeder protection IED 52 (162 3.2.6 R >, I0D >> (67N) ESIDUAL DIRECTIONAL OVERCURRENT The main application area of the directional residual overcurrent protection function is earth- fault protection in all types of networks. The inputs of the function are the Fourier basic harmonic components of the zero sequence current and those of the zero sequence voltage.
  • Page 53 Instruction manual –AQ F3x0 Feeder protection IED 53 (162 Figure 3-30: Directional decision characteristics of operating angle mode. In the figure above is presented the directional decision characteristics. Measured U0 signal is the reference for measured -I0 signal. RCA setting is the characteristic angle and R0A parameter is the operating angle.
  • Page 54 Instruction manual –AQ F3x0 Feeder protection IED 54 (162 Figure 3-31: Wattmetric and varmetric operating characteristics. In the in the figure above are presented the characteristics of the wattmetric and varmetric operating principles in forward direction. For reverse operating direction the operating vectors are turned 180 degrees.
  • Page 55 Instruction manual –AQ F3x0 Feeder protection IED 55 (162 Characteristic -180…180 deg by The base angle of the operating characteristics. Angle step of 1 deg Operation Selection of the function disabled and the timing Definit time characteristics. Operation when enabled can be either IEC Inv Definite time or IDMT characteristic.

  • Page 56: Current Unbalance (60)

    Instruction manual –AQ F3x0 Feeder protection IED 56 (162 3.2.7 C (60) URRENT UNBALANCE 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).
  • Page 57 Instruction manual –AQ F3x0 Feeder protection IED 57 (162 The signal processing compares the difference between measured current magnitudes. If the measured relative difference between the minimum and maximum current is higher than the setting value the function generates a trip command. For stage to be operational the measured current level has to be in range of 10 % to 150 % of the nominal current.

  • Page 58: Thermal Overload T>, (49L)

    Instruction manual –AQ F3x0 Feeder protection IED 58 (162 3.2.8 T T>, (49L) HERMAL OVERLOAD The line thermal protection measures basically the three sampled phase currents. TRMS values of each phase currents are calculated including harmonic components up to 10 harmonic, and the temperature calculation is based on the highest TRMS value of the compared three phase currents.
  • Page 59 Instruction manual –AQ F3x0 Feeder protection IED 59 (162 Table 3-22: Setting parameters of the current unbalance function Parameter Setting value, range Description and step Operation Selection for the function enabled or disabled. Default setting is “On” which means function is enabled. Start signal Activated Selection if the function issues either “Start”...

  • Page 60: Over Voltage U>, U>> (59)

    Instruction manual –AQ F3x0 Feeder protection IED 60 (162 3.2.9 O U>, U>> (59) VER VOLTAGE The overvoltage protection function measures three phase to ground voltages. If any of the measured voltages is above the pick-up setting, a start signal is generated for the phases individually.

  • Page 61: Under Voltage U<, U<< (27)

    Instruction manual –AQ F3x0 Feeder protection IED 61 (162 3.2.10 U<, U<< (27) NDER VOLTAGE The undervoltage protection function measures three voltages. If any of them is below the set pick-up value and above the defined minimum level, then a start signal is generated for the phases individually.

  • Page 62: Residual Over Voltage U0>, U0>> (59N)

    Instruction manual –AQ F3x0 Feeder protection IED 62 (162 3.2.11 U0>, U0>> (59N) ESIDUAL OVER VOLTAGE The residual definite time overvoltage protection function operates according to definite time characteristics, using the RMS values of the fundamental Fourier component of the zero sequence voltage (UN=3Uo).

  • Page 63: Over Frequency F>, F>>, F>>>, F>>>> (81O)

    Instruction manual –AQ F3x0 Feeder protection IED 63 (162 3.2.12 >, >>, >>>, >>>> (81O) VER FREQUENCY F The deviation of the frequency from the rated system frequency indicates unbalance between the generated power and the load demand. If the available generation is large compared to the consumption by the load connected to the power system, then the system frequency is above the rated value.

  • Page 64: Under Frequency F<, F<<, F<<<, F<<<< (81L)

    Instruction manual –AQ F3x0 Feeder protection IED 64 (162 Table 3-26 Setting parameters of the over frequency protection function Parameter Setting value, range Description and step Operation Operating mode selection for the function. Operation can be either disabled “Off” or enabled “On”. Default setting is enabled.

  • Page 65: Rate Of Change Of Frequency Df/Dt>, Df/Dt>>, Df/Dt>>>, Df/Dt>>>> (81R)

    Instruction manual –AQ F3x0 Feeder protection IED 65 (162 Table 3-27: Setting parameters of the under-frequency function Parameter Setting value, range Description and step Operation Operating mode selection for the function. Operation can be either disabled “Off” or enabled “On”. Default setting is enabled.

  • Page 66: Breaker Failure Protection Function Cbfp, (50Bf)

    Instruction manual –AQ F3x0 Feeder protection IED 66 (162 30% of the rated voltage value. The rate of change of frequency protection function generates a start signal if the df/dt value is above the setting vale. The rate of change of frequency is calculated as the difference of the frequency at the present sampling and at three cycles earlier.
  • Page 67 Instruction manual –AQ F3x0 Feeder protection IED 67 (162 The breaker failure protection function resets only if all conditions for faultless state are fulfilled. If at the end of the running time of the backup timer the currents do not drop below the pre-defined level, and/or the monitored circuit breaker is still in closed position, then a backup trip command is generated in the phase(s) where the timer(s) run off.

  • Page 68: Inrush Current Detection (Inr2), (68)

    Instruction manual –AQ F3x0 Feeder protection IED 68 (162 Table 3-29: Setting parameters of the CBFP function Parameter Setting value, range Description and step Operation Operating mode selection for the function. Operation can be Current either disabled “Off” or monitoring either measured current or Contact contact status or both current and contact status.

  • Page 69: Distance Protection Z< (21) (Option)

    Instruction manual –AQ F3x0 Feeder protection IED 69 (162 3.2.17 Z< (21) (O ISTANCE PROTECTION PTION The AQ 300 series distance protection can be configured to function either on polygon characteristics or MHO characteristics. The default configuration is based on polygon characteristics and if the MHO is required the corresponding function block needs to be added into configuration using AQtivate 300 software.
  • Page 70 Instruction manual –AQ F3x0 Feeder protection IED 70 (162 Figure 3-39: Structure of the distance protection The inputs are: Sampled 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 •...
  • Page 71 Instruction manual –AQ F3x0 Feeder protection IED 71 (162 The software modules of the distance protection function are as follows: Z_CALC calculates the impedances (R+jX) of the six measuring current loops: • three phase-phase loops, ▪ three phase-ground loops. ▪ POLY compares the calculated impedances with the setting values of the five •...
  • Page 72 Instruction manual –AQ F3x0 Feeder protection IED 72 (162 Table 3-31 Impedance calculation formulas The central column of table contains the formula for calculation. The formulas referred to in the right-hand-side column yield the same impedance value. Equation 3-4 Earth fault compensation factor Equation presents the earth fault compensation factor.
  • Page 73 Instruction manual –AQ F3x0 Feeder protection IED 73 (162 The separation of the two types of equation is based on the presence or absence of the earth (zero sequence) current. In case of a fault involving the earth (on a solidly grounded complex network), and if the earth current is over a certain level, the formula containing the earth fault compensation factor will be applied to calculate the correct impedance, which is...
  • Page 74 Instruction manual –AQ F3x0 Feeder protection IED 74 (162 In case of a phase-to-earth fault, the sampled phase voltage and the phase current modified by the zero sequence current have to be substituted: Where is the positive sequence resistance of the line or cable section between the fault location and the relay location is the positive sequence inductance of the line or cable section between the fault location and the relay location...
  • Page 75 Instruction manual –AQ F3x0 Feeder protection IED 75 (162 The applied numerical method is solving the differential equation of the faulty loop, based on three consecutive samples. The calculation for Zone1 is performed using two different methods in parallel: To achieve a better filtering effect, Fourier basic harmonic components are •...
  • Page 76 Instruction manual –AQ F3x0 Feeder protection IED 76 (162 The binary inputs influencing the operation of the distance protection function can be selected by the user. The outputs are the calculated positive-sequence impedances (R+jX) of the six measuring current loops and, as different zero sequence current compensation factors can be set for the individual zones, the impedances are calculated for each zone separately: Impedances of the three phase-phase loops, •...
  • Page 77 Instruction manual –AQ F3x0 Feeder protection IED 77 (162 Internal logic of the impedance calculation Figure 3-42: Impedance calculation internal logic. The decision needs logic parameter settings and, additionally, internal logic signals. The explanation of these signals is as follows: Table 3-33 Internal logic parameters of the impedance calculation.
  • Page 78 Instruction manual –AQ F3x0 Feeder protection IED 78 (162 Table 3-34 Binary input signals for the impedance calculation. Input status signal Explanation CURRENT_OK The current is suitable for impedance calculation in the processed loop if, after a zero crossing, there are three sampled values above a defined limit (~0.1In). For a phase-ground loop calculation, it is also required that the sum of the phase current (3Io) should be above Iphase/4.
  • Page 79 Instruction manual –AQ F3x0 Feeder protection IED 79 (162 Table 3-35 Calculation methods applied in the impedance calculation module Calculation Explanation method Calc(A) No current is available, the impedances are supposed to be higher than the possible maximum setting values R=1000000 mohm, X=1000000 mohm Calc(B) The currents and voltages are suitable for the correct impedance calculation and directional decision R, X=f(u, i)
  • Page 80 Instruction manual –AQ F3x0 Feeder protection IED 80 (162 Calculation method Calc(B): If the CURRENT_OK status signal is true and the VOLT_OK_HIGH status signal is true as well, then the current is suitable for calculation and the voltage is sufficient for the directionality decision.
  • Page 81 Instruction manual –AQ F3x0 Feeder protection IED 81 (162 Calculation method Calc(E): The currents are suitable but the voltages are in the range of the CVT swings, there are no pre-fault voltages stored in the memory but because of asymmetrical faults, there are healthy phase voltages.
  • Page 82 Instruction manual –AQ F3x0 Feeder protection IED 82 (162 R=1000500, X=1000500 Polygon characteristics The calculated co-ordinate values define six points on the complex impedance plane for the six possible measuring loops. These impedances are the positive sequence impedances. The protection compares these points with the „polygon” characteristics of the distance protection.
  • Page 83 Instruction manual –AQ F3x0 Feeder protection IED 83 (162 Zone Z -R Load R Load Load Angle Zone ZRev Note: For Zone 1: Zone 1 ZRev=0 Figure 3-44: The MHO characteristics of the distance protection function on the complex plane If a measured impedance point is inside the MHO circle, the algorithm generates the true value of the related output binary signal.
  • Page 84 Instruction manual –AQ F3x0 Feeder protection IED 84 (162 Figure 3-45: Polygon characteristics logic...
  • Page 85 Instruction manual –AQ F3x0 Feeder protection IED 85 (162 III. RL1+j XL1 RL2+j XL2 RL3+j XL3 ZL1_n ZL2_n ZL3_n ZL1L2_n ZL2L3_n ZL3L1_n RL1L2+j XL1L2 RL2L3+j XL2L3 RL3L1+j XL3L1 Parameters Figure 3-46: MHO characteristics Logic Table 3-36 Input impedances for the characteristics logic. Input values Zones Explanation...
  • Page 86 Instruction manual –AQ F3x0 Feeder protection IED 86 (162 Table 3-37 Output signals of the characteristics logic. Output values Zones Explanation ZL1_n 1…5 The impedance in the fault loop L1N is inside the characteristics ZL2_n 1…5 The impedance in the fault loop L2N is inside the characteristics ZL3_n 1…5 The impedance in the fault loop L3N is inside the characteristics...
  • Page 87 Instruction manual –AQ F3x0 Feeder protection IED 87 (162 The distance-to-fault calculation The distance protection function selects the faulty loop impedance (its positive sequence component) and calculates the distance to fault based on the measured positive sequence reactance and the total reactance of the line. This reference value is given as a parameter setting DIS21_LReact_FPar_.
  • Page 88 Instruction manual –AQ F3x0 Feeder protection IED 88 (162 Table 3-40 Calculated analogue values of the distance protection function. Measured value Dim. Explanation ZL1 = RL1+j XL1 Measured positive sequence impedance in the L1N loop, using the zero sequence current compensation factor for zone 1 ZL2 = RL2+j XL2 Measured positive sequence impedance in the L2N loop,...
  • Page 89 Instruction manual –AQ F3x0 Feeder protection IED 89 (162 Figure 3-49: The function block of the distance 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: Control And Monitoring Functions

    Instruction manual –AQ F3x0 Feeder protection IED 90 (162 3.3 C ONTROL AND MONITORING FUNCTIONS Table 3-43 Available control and monitoring functions Name ANSI Description TRC94 Phase-selective trip logic Dead line detection Voltage transformer supervision SYN25 SYNC Synchro-check function Δf, ΔU, Δφ REC79MV 0 ->...
  • Page 91 Instruction manual –AQ F3x0 Feeder protection IED 91 (162 The list of the sources of the WARNING state can be extended using the Common function block. This additional signal is programmed by the user with the help of the graphic logic editor.
  • 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: binary input status common function block...

  • Page 93: Trip Logic (94)

    Instruction manual –AQ F3x0 Feeder protection IED 93 (162 Table 3-45: The binary input status of the common function block The Common function block has a single Boolean parameter. The role of this parameter is to enable or disable the external setting of the Local/Remote state. Table 3-46: Setting parameters of the Common function Parameter Setting value, range...
  • Page 94 Instruction manual –AQ F3x0 Feeder protection IED 94 (162 Figure 3-1 Operation logic of the trip logic function. The trip requirements can be programmed by the user. The aim of the decision logic is to define a minimal impulse duration even if the protection functions detect a very short-time fault.
  • Page 95 Instruction manual –AQ F3x0 Feeder protection IED 95 (162 Figure 3-3 Trip logic block #1 has been assigned as HV side trip to activate trip contact E02. Trip logic block #2 has been assigned as MV side trip to activate trip contact E04. The trip contact assignments can be modified or the same trip logic can activate multiple contacts by adding a new trip assignment.

  • Page 96: Dead Line Detection

    Instruction manual –AQ F3x0 Feeder protection IED 96 (162 Table 3-47 Setting parameters of the trip logic function Parameter Setting value, range Description and step Operation Operating mode selection for the function. Operation can be either disabled “Off” or enabled “On”. Default setting is enabled. Min pulse 50…60000 ms by Minimum duration of the generated tripping impulse.
  • Page 97 Instruction manual –AQ F3x0 Feeder protection IED 97 (162 Figure 3-51: Principal scheme of the dead line detection function The function block of the dead line detection function is shown in figure bellow. This block shows all binary input and output status signals that are applicable in the AQtivate 300 software.

  • Page 98: Voltage Transformer Supervision (Vts)

    Instruction manual –AQ F3x0 Feeder protection IED 98 (162 Table 3-49: The binary output status signals of the dead line detection function Table 3-50Setting parameters of the dead line detection function Parameter Setting value, range Description and step Operation Operating mode selection for the function. Operation can be either disabled “Off”...
  • Page 99 Instruction manual –AQ F3x0 Feeder protection IED 99 (162 secondary circuit. The voltage transformer supervision function can be used for either tripping or alarming purposes. The voltage transformer supervision function can be used in three different modes of application: Zero sequence detection (for typical applications in systems with grounded neutral): “VT failure”...
  • Page 100 Instruction manual –AQ F3x0 Feeder protection IED 100 (162 Preparation Negative Sequence Fourier Zero Sequence Parameters Status signals Algorithm Decision Dead Line Logic Detection Negative Sequence Fourier Zero Sequence Status signals Figure 3-53: Operation logic of the voltage transformer supervision and dead line detection. The voltage transformer supervision logic operates through decision logic presented in the following figure.
  • Page 101 Instruction manual –AQ F3x0 Feeder protection IED 101 (162 NOTE: For the operation of the voltage transformer supervision function the “ Dead line detection function” must be operable as well: it must be enabled by binary parameter The symbol of the function block in the AQtivate 300 software The function block of voltage transformer supervision function is shown in figure below.

  • Page 102: Current Transformer Supervision (Cts)

    Instruction manual –AQ F3x0 Feeder protection IED 102 (162 Binary output signals Signal title Explanation VTS_Fail_GrI VT Failure Failure status signal of the VTS function Table 3-52: The binary output signal of the voltage transformer supervision function Table 3-53Setting parameters of the voltage transformer supervision function Parameter Setting value, range Description...

  • Page 103: Synchrocheck Function Du/Df (25)

    Instruction manual –AQ F3x0 Feeder protection IED 103 (162 Figure 3-56: The function block of the current transformer supervision function The binary input and output status signals of the dead line detection function are listed in tables below. Binary status signal Title Explanation CTSuperV_Blk_GrO_...
  • Page 104 Instruction manual –AQ F3x0 Feeder protection IED 104 (162 To prevent such problems, this function checks if the systems to be interconnected are operating synchronously. If yes, then the close command is transmitted to the circuit breaker. In case of asynchronous operation, the close command is delayed to wait for the appropriate vector position of the voltage vectors on both sides of the circuit breaker.
  • Page 105 Instruction manual –AQ F3x0 Feeder protection IED 105 (162 The synchrocheck function monitors three modes of conditions: • Energizing check: • Dead bus, live line, • Live bus, dead line, • Any Energizing case (including Dead bus, dead line). • Synchro check (Live line, live bus) •...
  • Page 106 Instruction manual –AQ F3x0 Feeder protection IED 106 (162 RelA SwStA SYN25_Eva CancelA (aut) SynSWA InProgA UlineFour(3ph) UOKA FrOKA Ubus1Four AngOKA Ubus2Four SYN25_Com Bus Sel VTS Blk RelM Bus1 VTS Blk Bus2 VTS Blk SYN25_Eva (man) SynSWM InProgM SwStM UOKM CancelM FrOKM AngOKM...
  • Page 107 Instruction manual –AQ F3x0 Feeder protection IED 107 (162 SYN25_Com -U_diff UlineFour (3ph) Calc -f_diff Ubus1Four U_bus -fi_ diff Ubus2Four -U_bus -U_line BusSel 1000ms VTS Blk Bus1 VTS Blk U_bus Bus2 VTS Blk Parameters Figure 3-58: Synchrocheck common difference calculation function structure. If the active bus section changes the function is dynamically blocked for 1000ms and no release signal or switching command is generated.
  • Page 108 Instruction manual –AQ F3x0 Feeder protection IED 108 (162 SYN25- Oper=ByP EnOper U_lin chck AngO U_bus U_diff -f_diff fi_diff Paramet SynS t pulse SWOper=O Oper=Off SwSt Cance time InProg Figure 3-59: Synchrocheck evaluation function structure. This evaluation software block is used for two purposes: for the automatic reclosing command (the signal names have the suffix “A”) and for the manual close request (the signal names have the suffix “M”).
  • Page 109 Instruction manual –AQ F3x0 Feeder protection IED 109 (162 If the conditions for synchro check operation are not fulfilled and a close request is received as the input signal (SySwitch Auto/Manual), then synchro switching is attempted. This is possible if: the voltage difference is within the defined limits (Udiff SynSW Auto /Manual)) the frequency difference is within the defined limits (FrDiff SynSW Auto).
  • Page 110 Instruction manual –AQ F3x0 Feeder protection IED 110 (162 Binary status signal Title Explanation SYN25_BusSel_GrO_ Bus select If this signal is logic TRUE, then the voltage of Bus2 is selected for evaluation SYN25_VTSBlk_GrO_ VTS Block Blocking signal voltage transformer supervision function evaluating the line voltage SYN25_Bus1VTSBlk_GrO_...
  • Page 111 Instruction manual –AQ F3x0 Feeder protection IED 111 (162 Table 3-59 Setting parameters of the synchro check / synchro switch function Parameter Setting value, range Description and step Voltage select L1-N Reference voltage selection. The function will monitor the L2-N selected voltage for magnitude, frequency and angle L3-N differences.

  • Page 112: Autoreclosing (79)

    Instruction manual –AQ F3x0 Feeder protection IED 112 (162 FrDiff SynSW 0.10…1.00 Hz by Frequency difference checking of the automatic synchroswitch Auto step of 0.01 Hz mode. If the measured phase difference is below this setting the condition applies. Default setting is 0.2 Hz. Operation Man Operation mode for manual switching.
  • Page 113 Instruction manual –AQ F3x0 Feeder protection IED 113 (162 close command. If the fault still exist or reappears, then within the "Reclaim time” (according to parameter setting, started at the close command) the auto-reclose function picks up again and the subsequent cycle is started. If no pickup is detected within this time, then the automatic reclosing function resets and a new fault will start the procedure with the first cycle again.
  • Page 114 Instruction manual –AQ F3x0 Feeder protection IED 114 (162 Disabled No automatic reclosing is selected, 1. Enabled Only one automatic reclosing cycle is selected, 1.2. Enabled Two automatic reclosing cycles are activated, 1.2.3. Enabled Three automatic reclosing cycles are activated, 1.2.3.4.
  • Page 115 Instruction manual –AQ F3x0 Feeder protection IED 115 (162 signal (EarthFaultTrip NoPhF). (This signal is TRUE in case of an earth fault.) The subsequent cycles do not change this decision. If the circuit breaker is not ready, the controller function waits for a pre-programmed time for this state.
  • Page 116 Instruction manual –AQ F3x0 Feeder protection IED 116 (162 command is received during the running time of any of the cycles, then the automatic reclosing function enters into “Dynamic blocked” state and resets. If the fault still exists at the end of the last cycle, the automatic reclosing function trips and generates the signal for final trip: (Final Trip).
  • Page 117 Instruction manual –AQ F3x0 Feeder protection IED 117 (162 • If the parameter (CB State Monitoring) is set to TRUE and the circuit breaker is in Open state, i.e., the value of the (CB OPEN position) status variable gets TRUE. •...

  • Page 118: Switch On To Fault Logic

    Instruction manual –AQ F3x0 Feeder protection IED 118 (162 2.Dead Time Ph 10...100000 ms by Dead time setting for the second reclosing cycle for line-to-line step of 10 ms fault. Default setting is 600 ms. 3.Dead Time Ph 10...100000 ms by Dead time setting for the third reclosing cycle for line-to-line step of 10 ms fault.
  • Page 119 Instruction manual –AQ F3x0 Feeder protection IED 119 (162 The function receives the “Dead line” status signal from the DLD (dead line detection) function block. After dead line detection, the binary output signal AutoSOTF is delayed by a timer with a constant 200 ms time delay. After voltage detection (resetting of the dead line detection input signal), the drop-off of this output signal is delayed by a timer (SOTF Drop Delay) set by the user.
  • Page 120 Instruction manual –AQ F3x0 Feeder protection IED 120 (162 Figure 3.3.8-2 The function block of the switch onto fault function. 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: Voltage Sag And Swell (Voltage Variation)

    Instruction manual –AQ F3x0 Feeder protection IED 121 (162 Table 3-65 The timer parameter of the switch-onto-fault detection function 3.3.9 V OLTAGE SAG AND SWELL OLTAGE VARIATION Short duration voltage variations have an important role in the evaluation of power quality. Short duration voltage variations can be: Voltage sag, when the RMS value of the measured voltage is below a level defined by a •...
  • Page 122 Instruction manual –AQ F3x0 Feeder protection IED 122 (162 Voltage interruption, when the RMS value of the measured voltage is below a minimum • level specified by a parameter. For the evaluation, the duration of the voltage interruption should be between a minimum and a maximum time value defined by parameters. Figure 3-5 Voltage interruption Sag and swell detection Voltage sag is detected if any of the three phase-to-phase voltages falls to a value between...
  • Page 123 Instruction manual –AQ F3x0 Feeder protection IED 123 (162 The outputs of the sag and swell detection function are: Sag detection • Swell detection • Interruption detection • Counters • NOTE: if all three phase-to-phase voltages do not fall below the specified “Interruption Limit” value, then the event is classified as “sag”...

  • Page 124: Disturbance Recorder

    Instruction manual –AQ F3x0 Feeder protection IED 124 (162 Figure 3-7: Example sag and swell events. Table 3-66: Sag and swell function setting parameters Parameter Setting value, range Description and step Operation Disabling or enabling the operation of the function, Default setting is Off Swell limit 50...150% ms by step...
  • Page 125 This procedure assures that the three component files (.cfg, .dat and .inf) are stored in the same location. The evaluation can be performed using any COMTRADE evaluator software, e.g. Arcteq’s AQview software. Consult your nearest Arcteq representative for availability. The symbol of the function block in the AQtivate 300 software The function block of the disturbance recorder function is shown in figure bellow.

  • Page 126: Event Recorder

    Instruction manual –AQ F3x0 Feeder protection IED 126 (162 Table 3-67 The binary input signal of the disturbance recorder function Binary status signal Explanation Output status of a graphic equation defined by the user to start DRE_Start_GrO_ the disturbance recorder function. Table 3-68Setting parameters of the disturbance recorder function Parameter Setting value, range...
  • Page 127 Instruction manual –AQ F3x0 Feeder protection IED 127 (162 Start L2 Start signal in phase L2 Start L3 Start signal in phase L3 Start Start signal Trip Trip command Directional overcurrent protection function (TOC67) high setting stage Start L1 Start signal in phase L1 Start L2 Start signal in phase L2 Start L3...
  • Page 128 Instruction manual –AQ F3x0 Feeder protection IED 128 (162 Low General Start Low setting stage general start signal Low General Trip Low setting stage general trip command High Start L1 High setting stage start signal in phase L1 High Start L2 High setting stage start signal in phase L2 High Start L3 High setting stage start signal in phase L3...
  • Page 129 Instruction manual –AQ F3x0 Feeder protection IED 129 (162 Final Trip Definite trip command at the end of the automatic reclosing cycles Measurement function (MXU) Current L1 Current violation in phase L1 Current L2 Current violation in phase L2 Current L3 Current violation in phase L3 Voltage L12 Voltage violation in loop L1-L2...

  • Page 130: Measured Values

    Instruction manual –AQ F3x0 Feeder protection IED 130 (162 Operation counter Operation counter DC OPCap 3.3.12 EASURED VALUES The measured values can be checked on the touch-screen of the device in the “On-line functions” page, or using an Internet browser of a connected computer. The displayed values are secondary voltages and currents, except the block “Line measurement”.

  • Page 131: Status Monitoring The Switching Devices

    Instruction manual –AQ F3x0 Feeder protection IED 131 (162 L12 loop X Reactance of loop L1L2 L23 loop R Resistance of loop L2L3 L23 loop X Reactance of loop L2L3 L31 loop R Resistance of loop L3L1 L31 loop X Reactance of loop L3L1 Line thermal protection Calc.

  • Page 132: Led Assignment

    Instruction manual –AQ F3x0 Feeder protection IED 132 (162 3.3.15 ASSIGNMENT On the front panel of the device there is “User LED”-s with the “Changeable LED description label”. Some LED-s are factory assigned, some are free to be defined by the user. Table below shows the LED assignment of the AQ-F350 factory configuration.

  • Page 133: System Integration

    Instruction manual –AQ F3x0 Feeder protection IED 133 (162 YSTEM INTEGRATION The AQ F3x0 contains two ports for communicating to upper level supervisory system and one for process bus communication. The physical media or the ports can be either serial fiber optic or RJ 45 or Ethernet fiber optic.

  • Page 134: Connections

    Instruction manual –AQ F3x0 Feeder protection IED 134 (162 ONNECTIONS 5.1 B AQ-F350 LOCK DIAGRAM EXAMPLE Figure 5-1 Block diagram of AQ-F350 with a digital input card (DI12) and a digital output card (DO8).

  • Page 135: Block Diagram Aq-F350 All Options

    Instruction manual –AQ F3x0 Feeder protection IED 135 (162 5.2 B AQ-F350 LOCK DIAGRAM ALL OPTIONS Figure 5-2 Block diagram of AQ-F350 with all options installed.

  • Page 136: Connection Example

    Instruction manual –AQ F3x0 Feeder protection IED 136 (162 5.3 C ONNECTION EXAMPLE Figure 5-3 Connection example of AQ-F350 feeder protection IED.

  • Page 137: Construction And Installation

    137 (162 ONSTRUCTION AND INSTALLATION The Arcteq AQ-F3x0 feeder protection IED consists of hardware modules. Due to modular structure optional positions for the slots can be user defined in the ordering of the IED to include I/O modules and other types of additional modules. An example module arrangement configuration of the AQ-F350 and AQ-F390 is shown in the figures below.
  • Page 138 Instruction manual –AQ F3x0 Feeder protection IED 138 (162 Figure 6-2. An example module arrangement configuration of the AQ-F390 IED. Table 6-2. Hardware modules description. Position Module identifier Explanation PS+ 2101 Power supply unit, 85-265 VAC, 88-300 VDC CT + 5151 Analog current input module VT+ 2211 Analog voltage input module...

  • Page 139: Cpu Module

    Instruction manual –AQ F3x0 Feeder protection IED 139 (162 6.1 CPU MODULE The CPU module contains all the protection, control and communication functions of the AQ 3xx device. Dual 500 MHz high- performance Analog Devices Blackfin processors separates relay functions (RDSP) from communication and HMI functions (CDSP). Reliable communication between processors is performed via high- speed synchronous serial internal bus (SPORT).

  • Page 140: Power Supply Module

    Instruction manual –AQ F3x0 Feeder protection IED 140 (162 6.2 P OWER SUPPLY MODULE The power supply module converts primary AC and/or DC voltage to required system voltages. Redundant power supply cards extend system availability in case of the outage of any power source and can be ordered separately if required Figure 6-1 Connector allocation of the 30W power supply unit "A"...

  • Page 141: Binary Input Module (Di12)

    Instruction manual –AQ F3x0 Feeder protection IED 141 (162 6.3 B (DI12) INARY INPUT MODULE The inputs are galvanic isolated and the module converts high-voltage signals to the voltage level and format of the internal circuits. This module is also used as an external IRIG-B synchronization input.

  • Page 142: Binary Input Module (Di16)

    Instruction manual –AQ F3x0 Feeder protection IED 142 (162 6.4 B (DI16) INARY INPUT MODULE The inputs are galvanic isolated and the module converts high-voltage signals to the voltage level and format of the internal circuits. This module is also used as an external IRIG-B synchronization input.

  • Page 143: Binary Output Modules For Signaling

    Instruction manual –AQ F3x0 Feeder protection IED 143 (162 6.5 B INARY OUTPUT MODULES FOR SIGNALING The signaling output modules can be ordered as 8 relay outputs with dry contacts. "H" R8+/80 No. Name 1 BOut_H01 Common 2 BOut_H01 NO 3 BOut_H02 Common 4 BOut_H02 NO 5 BOut_H03 Common...

  • Page 144: Tripping Module

    Instruction manual –AQ F3x0 Feeder protection IED 144 (162 6.6 T RIPPING MODULE The tripping module applies direct control of a circuit breaker. The module provides fast operation rated heavy duty controlling. "E" TRIP+/2101 No. Name 1 Trip1 + 2 Trip1 - 3 Trip1 NO 4 Trip 2 + 5 Trip 2 -...

  • Page 145: Voltage Measurement Module

    Instruction manual –AQ F3x0 Feeder protection IED 145 (162 6.7 V OLTAGE MEASUREMENT MODULE For voltage related functions (over- /under -voltage, directional functions, distance function, power functions) or disturbance recorder functionality this module is needed. This module also has capability for frequency measurement. For capacitive voltage measurement of the synchrocheck reference, the voltage measurement module can be ordered with reduced burden in channel VT4.

  • Page 146: Current Measurement Module

    Instruction manual –AQ F3x0 Feeder protection IED 146 (162 6.8 C URRENT MEASUREMENT MODULE Current measurement module is used for measuring current transformer output current. Module includes three phase current inputs and one zero sequence current input. The nominal rated current of the input can be selected with a software parameter either 1 A or 5 A.

  • Page 147: Installation And Dimensions

    Instruction manual –AQ F3x0 Feeder protection IED 147 (162 6.9 I NSTALLATION 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: Technical Data

    Instruction manual –AQ F3x0 Feeder protection IED 151 (162 ECHNICAL DATA 7.1 P ROTECTION FUNCTIONS 7.1.1 O VERCURRENT PROTECTION FUNCTIONS Three-phase instantaneous overcurrent protection I>>> (50) Operating characteristic Instantaneous Pick-up current inaccuracy <2% Reset ratio 0.95 Operate time at 2*In Peak value calculation <15 ms Fourier calculation...

  • Page 152: Directional Overcurrent Protection Functions

    Instruction manual –AQ F3x0 Feeder protection IED 152 (162 Residual instantaneous overcurrent protection I0>>> (50N) Operating characteristic Instantaneous Picku-up current inaccuracy <2% Reset ratio 0.95 Operate time at 2*In Peak value calculation <15 ms Fourier calculation <25 ms Reset time 16 –...

  • Page 153: Voltage Protection Functions

    Instruction manual –AQ F3x0 Feeder protection IED 153 (162 Residual directional overcurrent protection function I0Dir>, I0Dir>> (67N) 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 Pickup time 25 –...

  • Page 154: Frequency Protection Functions

    Instruction manual –AQ F3x0 Feeder protection IED 154 (162 7.1.4 F REQUENCY PROTECTION FUNCTIONS Overfrequency protection function f>, f>>, f>>>, f>>>> (81O) Operating range 40 - 70 Hz Operating range inaccuracy 30mHz Effective range inaccuracy 2mHz Minimum operating time 100ms Operation time inaccuracy + 10ms Reset ratio...

  • Page 155: Monitoring Functions

    Instruction manual –AQ F3x0 Feeder protection IED 155 (162 Breaker failure protection function CBFP, (50BF) Current inaccuracy <2 % Re-trip time Approx. 15ms Operation time inaccuracy + 5ms Current reset time 20ms Inrush current detection function INR2, (68) Current inaccuracy <2 % Reset ratio 0,95...

  • Page 156: Control Functions

    Instruction manual –AQ F3x0 Feeder protection IED 156 (162 Current transformer supervision function CTS Pick-up starting inaccuracy at In <2% Minimum operation time 70ms Reset ratio 0.95 Sag and swell (Voltage variation) Voltage measurement inaccuracy ±1% of Un ±2% of setting value or Timer inaccuracy ±20ms Dead line detection DLD...

  • Page 157: Hardware

    Instruction manual –AQ F3x0 Feeder protection IED 157 (162 Autoreclosing function, (79) ±1% of setting value or Operating time inaccuracy ±30ms Switch on to fault logic ±5% or ±15ms, whichever Timer accuracy is greater 7.4 H ARDWARE OWER SUPPLY MODULE 80-255VAC Input voltage 90-300VDC...

  • Page 158: Voltage Measurement Module

    Instruction manual –AQ F3x0 Feeder protection IED 158 (162 7.4.2 V OLTAGE MEASUREMENT MODULE Rated voltage Un 100/√3, 100V, 200/√3, 200V (parameter settable) Number of channels per module Rated frequency 50Hz 60Hz (ordering option) Burden <1VA at 200V Voltage withstand 250V (continuous) 275VAC/350VDC (1s) Voltage measurement range...

  • Page 159: Tests And Environmental Conditions

    Instruction manual –AQ F3x0 Feeder protection IED 159 (162 7.5 T ESTS AND ENVIRONMENTAL CONDITIONS 7.5.1 D ISTURBANCE TESTS CE approved and tested EMC test according to EN 50081-2, EN 50082-2 Emission 0.15 - 30MHz - Conducted (EN 55011 class A) 30 - 1 000MHz - Emitted (EN 55011 class A) Immunity...

  • Page 160: Environmental Conditions

    Instruction manual –AQ F3x0 Feeder protection IED 160 (162 7.5.5 E NVIRONMENTAL CONDITIONS Specified ambient service temp. range -10…+55°C Transport and storage temp. range -40…+70°C...

  • Page 161: Ordering Information

    Instruction manual –AQ F3x0 Feeder protection IED 161 (162 RDERING INFORMATION Visit https://configurator.arcteq.fi/ to build a hardware configuration, define an ordering code and get a module layout image.

  • Page 162: Reference Information

    Instruction manual –AQ F3x0 Feeder protection IED 162 (162 EFERENCE INFORMATION Manufacturer 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...

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