Page 1 AQ-F205 Feeder protection IED Instruction manual ...
Page 2: Table Of Contents
5.1. Functions included in AQ-F205 ........
Page 3 7.1. Connections AQ-F205 ........
Page 5 Nothing contained in this document shall increase the liability or extend the warranty obligations of the manufacturer Arcteq Relays Ltd. The manufacturer expressly disclaims any and all liability for any damages and/or losses caused due to a failure to comply with the instructions contained herein or caused by persons who do not ful l the aforementioned requirements.
Page 7: Manual Revision Notes
- Added General-menu description. 1.2. Version 1 revision notes Revision 1.00 Date 8.4.2013 Changes - The rst revision for AQ-F205 IED. Revision 1.01 Date 22.11.2013 - Application example for ARON input connection added - Application example for trip circuit supervision.
Page 8 Changes - Order code revised - Non-standard inverse time delay curves added - Internal harmonic blocking parameter to I>,I0>,Idir>,I0dir> functions - RTD&mA card description improved Revision 1.09 Date 18.1.2019 Changes - HMI Display technical data added © Arcteq Relays Ltd...
Page 9: Abbreviations
RMS – Root mean square SF – System failure TMS – Time multiplier setting TRMS – True root mean square VAC – Voltage alternating current VDC – Voltage direct current SW – Software uP - Microprocessor © Arcteq Relays Ltd...
Page 10: General
Version: 2.00 3. General AQ-F205 Feeder Protection IED is a member of the AQ-200 product line. The AQ-200 protection product line in respect of hardware and software is a modular concept. The hardware modules are assembled and con gured according to the application IO requirements and the software determines the available functions.
Page 11: Ied User Interface
This can be either a hardware or software error. Start LED (yellow) and Trip LED (red) activation is user settable. Activation and color (green/yellow) of the 16 LEDs on the right side of the display are user settable. © Arcteq Relays Ltd...
Page 12: Mimic And Main Menu
All the settings in this IED type have been divided into main con guration menus. Main con guration menus are presented below. Available menus may vary according to IED type. Figure. 4.2.2. - 3. Main con guration menus. © Arcteq Relays Ltd...
Page 13: General Menu
Protection/Control/Monitor pro le: Displays the status of enabled functions. 4.4. Protection menu Protection menu includes Stage activation sub-menu and sub-menus for different protection functions like Overcurrent, Earthfault, Seq. and balance and Supporting. Valid protection functions vary according IED type. © Arcteq Relays Ltd...
Page 14 Activation of different protection stages is done in Stage activation –sub menu. Each protection stage and supporting function is disabled as standard. Activated menus will appear below the stage speci c sub-menu for example I> appears below Current –module, U< appears below Voltage-module etc. EXAMPLE PROTECTION STAGE © Arcteq Relays Ltd...
Page 15 AQ-F205 Instruction manual Version: 2.00 Figure. 4.4. - 7. Stage navigation and modi cation. Each protection stage and supportive function has ve stage menus Info, Settings, Registers, IO and Events. © Arcteq Relays Ltd...
Page 16 Info view has calculator for function starts, trips and blockings. It is possible to clear calculators by choosing Clear statistics and Clear. Measurements are visible in Info menu. Active setting group and its settings are all visible in Info menu. © Arcteq Relays Ltd...
Page 17 Stage settings vary according different protection functions. With factory settings only one group of eight is activated. To enable more groups go to Control menu and select Setting Groups. Figure. 4.4. - 10. Stage information is divided into two sections. © Arcteq Relays Ltd...
Page 18 Connection to outputs can be either latched |x| or non-latched x. Stage blocking is done in Blocking Input Control menu. Blocking can be done by using digital inputs, logical inputs or outputs, stage start- trip- or blocked information or by using object status information. © Arcteq Relays Ltd...
Page 19 Activation of different protection stages is done in Stage activation –sub menu. Each protection stage and supporting function is disabled as standard. Activated menus will appear below the stage speci c sub-menu for example I> appears below Current –module, U< appears below Voltage-module etc. © Arcteq Relays Ltd...
Page 20 AQ-F205 Instruction manual Version: 2.00 Example protection stage Figure. 4.4. - 14. Stage navigation and modi cation. Each protection stage and supportive function has ve stage menus Info, Settings, Registers, IO and Events. © Arcteq Relays Ltd...
Page 21 Info view has calculator for function starts, trips and blockings. It is possible to clear calculators by choosing Clear statistics and Clear. Measurements are visible in Info menu. Active setting group and its settings are all visible in Info menu. Other setting groups can be set in the Settings -menu. © Arcteq Relays Ltd...
Page 22 Figure. 4.4. - 16. All group speci c settings are done individually in Settings menu. Stage settings vary according different protection functions. With factory settings only one group of eight is activated. To enable more groups go to Control menu and select Setting Groups. © Arcteq Relays Ltd...
Page 23 Operation log can be cleared by choosing Clear registers → Clear . Events generated by the speci c stage can be checked by going to Stage event register. General events cannot be cleared. © Arcteq Relays Ltd...
Page 24 Connection to outputs can be either latched |x| or non-latched x. Stage blocking is done in Blocking Input Control menu. Blocking can be done by using digital inputs, logical inputs or outputs, stage start- trip- or blocked information or by using object status information. © Arcteq Relays Ltd...
Page 25: Control Menu
Control menu includes Controls Enabled sub-menu and sub-menus for different control functions like Setting Groups, Objects, Control Functions and Device IO. Valid control functions vary according IED type. Figure. 4.5. - 20. Control menu view. Functions vary according IED type. © Arcteq Relays Ltd...
Page 26 RTDs and object status information can be used. Event masking for setting groups (masks are off as default). Only masked events appear to event list. Events cannot be cleared. © Arcteq Relays Ltd...
Page 27 Figure. 4.5. - 23. Group changing with pulse control only or with pulses and static signal. Objects Figure. 4.5. - 24. Object controlling. Each activated object is visible in Objects -menu. As default all objects are disabled. Each active object has four setting menus, settings, application control, registers and events. © Arcteq Relays Ltd...
Page 28 Ready- and external Synchrocheck permission have status inputs as well. Digital inputs, Logical inputs or outputs, stage starting- tripping- or blocking, RTDs and object status information can be used to indicate the status. Object open- and close signals of an object are connected to physical output relays. © Arcteq Relays Ltd...
Page 29 LED. Connection to outputs can be either latched |x| or non-latched x. Object blocking is done in Blocking Input Control menu. Blocking can be done by using digital inputs, logical inputs or outputs, stage start- trip- or blocked information or by using object status information. © Arcteq Relays Ltd...
Page 30 Control functions Figure. 4.5. - 28. Stage navigation and modi cation. Each enabled control function is listed below Control Functions menu. Every function includes same sub-menus as protections stages including Info, Settings, Registers, IO and Events. © Arcteq Relays Ltd...
Page 31 (normal open or normal closed), activation (16…200 , step 0.1V) and release (10…200 V , step 0.1V) threshold voltage for each available input AC/DC AC/DC and activation delay (0…1800 s, step 1ms). Binary input statuses can be check from corresponding menu. © Arcteq Relays Ltd...
Page 32 IED via setting le. NOTE! Normal closed signal goes to default position (normal open) in case the relay loses the auxiliary voltage or during System full reset. Normally closed output signal does not open during Communication- or protections reset. © Arcteq Relays Ltd...
Page 33 Description Settings menu the label text of the LED can be modi ed. This label is visible in LEDs quick displays and matrixes. LED color can be chosen between green and yellow in LED Color Settings menu. As default the color is green. © Arcteq Relays Ltd...
Page 34 Programmable control switches (PCS) are switches that can be used to control signals in mimic view. These signals can be used in various situations (controlling logic program, function blocking etc.) You can give each switch a name and set access level to determine who can control the switch. © Arcteq Relays Ltd...
Page 35: Communication Menu
Connections menu. IEDs support following communication protocols: SNTP, IEC61850, ModbusTCP, ModbusRTU, IEC103, IEC101/104, SPA and ModbusIO as a standard. It is also possible to have additional protocols with special extra communication interface modules. © Arcteq Relays Ltd...
Page 36 ModbusTCP can be used at the same time with other Ethernet based protocols like SNTP and IEC61850. ModbusRTU / IEC103 / ModbusIO con guration menus. ModbusRTU like other serial protocols can be used only one at the time over one physical serial communication interface. © Arcteq Relays Ltd...
Page 37: Measurement Menu
It is possible to individually invert polarity of each phase current. Transformers menu also displays more information like scaling factors for CTs and per unit values. FREQUENCY © Arcteq Relays Ltd...
Page 38 Per-unit group has values for fundamental component, TRMS, amplitude- and power THD and peak- to peak values. Primary group has values for fundamental component and TRMS and same applies with Secondary group. Phase Angle group displays the angle of each measured component. © Arcteq Relays Ltd...
Page 39 Harmonics menu displays voltage and current harmonics from fundamental component up to 31th harmonic. It is possible to select whether each component is displayed as Absolute- or Percentage and as primary or secondary amps or per unit values. PHASORS © Arcteq Relays Ltd...
Page 40: Monitoring Menu
Monitoring menu includes Monitoring Enabled, Monitoring Functions, Disturbance REC and Device Diagnostics sub-menus. Valid Monitor functions vary according IED type. Figure. 4.8. - 44. Monitoring menu view. Monitor functions vary according IED type. MONITORS ENABLED Figure. 4.8. - 45. IED Monitors Enabled sub- menu. © Arcteq Relays Ltd...
Page 41 Activated menus will appear in the Monitor functions sub-menu. MONITOR FUNCTIONS Figure. 4.8. - 46. IED function modi cation. Con guring monitor functions is very similar to con guring protection stages. DISTURBANCE REC © Arcteq Relays Ltd...
Page 42 Recording mode is either First in First out or Keep Olds. Sample rate of analogue channels is 8/16/32/62 samples per cycle. Digital channel sample rate is xed 5 ms. Pre triggering time is selectable between 5…95%. © Arcteq Relays Ltd...
Page 43 Device Diagnostics gives detailed feedback of the IED condition generally and whether option cards are installed correctly without problems. In case anything abnormal is noticed in Device diagnostics menu and it cannot be reset please contact closest representative or manufacturer. © Arcteq Relays Ltd...
Page 44: User Level Password Con Guration
Con gurator: Can change most settings like basic protection pick-up levels or time delays, breaker control functions, signal descriptions etc. Can operate breakers or other equipment. Super user: Access to change any setting and can operate breakers or other equipment. © Arcteq Relays Ltd...
Page 45: Functions
Instruction manual Version: 2.00 5. Functions 5.1. Functions included in AQ-F205 This chapter presents the functions of AQ-F205 Feeder Protection relay. AQ-F205 includes following functions and amounts of instances of the functions. Table. 5.1. - 1. Protection functions of AQ-F205 Name...
Page 46: Measurements
Frequency protection (8 stages) f< f<< f<<< f<<<< ROCOF1 df/dt >/< (1…8) Rate of change of frequency (8 stages) Table. 5.1. - 2. Control functions of AQ-F205 Name ANSI Description Set group settings Object control 0 → 1 Autoreclosing function CLPU...
Page 47 0.2 A in some cases. In following chapter is an example for setting the scaling of the current measurements to the example current transformer and system load. © Arcteq Relays Ltd...
Page 48 CT primary value should be the base for per unitizing. If the per unit scaling is wanted to be according to the CT values then “Scale meas to In” is set to “CT nom p.u.” As presented in the gure below. © Arcteq Relays Ltd...
Page 49 If the settings would be wanted to be scaled to load nominal then the selection “Scale meas to In” would be set to “Object In p.u.” Figure. 5.2.1. - 52. Phase current transformer scalings to protected object nominal current. © Arcteq Relays Ltd...
Page 50 Figure. 5.2.1. - 54. Residual current I02 scaling to ring core CT input. If the scaling was made to CT primary or to object nominal current the measurements will look as follows with nominal current feeding: Figure. 5.2.1. - 55. Scalings to CT nominal. © Arcteq Relays Ltd...
Page 51 Figure. 5.2.1. - 57. If zero sequence current transformer is used it should be connected to I02 channel which has lower CT scaling ranges. Figure. 5.2.1. - 58. Setting example of zero sequence current transformer application. © Arcteq Relays Ltd...
Page 52 Phase unbalance protection trips immediately when it is activated. Earth fault protection trips immediately when it is activated. In following rows few most common cases are presented. © Arcteq Relays Ltd...
Page 53 I2: 0.67 xIn / 60.00 deg I0Calc: 0.67 xIn / -60.00 deg Resolution: - Change wires to opposite in CT module connectors 5 – 6 - Or from the Transformers, Phase CT scaling select IL3 polarity to “Invert”. © Arcteq Relays Ltd...
Page 54 IL3: 1.00 xIn / 240.00 deg Sequence currents I1: 0.00 xIn / 0.00 deg I2: 1.00 xIn / 0.00 deg I0Calc: 0.00 xIn / 0.00 deg Resolution: - Change wires to opposite in CT module connectors 1 - 5 © Arcteq Relays Ltd...
Page 55 P/S /secondary current ratio Table. 5.2.1. - 9. Settings of the residual I02 CT scaling. Name Range Step Default Description I02 CT 0.2… 0.00001A 100.0A Rated primary current of the CT in amperes. primary 25000.0A © Arcteq Relays Ltd...
Page 56 Per unit measurement from calculated I0 current fundamental frequency RMS Calculated I0 0.01xIn 1250.0xIn current. Per unit measurement from I01 residual current channel TRMS current Phase current I01 0.00… 0.01xIn TRMS 1250.0xIn including harmonics up to 31 © Arcteq Relays Ltd...
Page 57 Negative sequence current 0.00…1250.0xIn 0.01xIn Per unit measurement from calculated negative sequence current Zero sequence current 0.00…1250.0xIn 0.01xIn Per unit measurement from calculated zero sequence current Table. 5.2.1. - 19. Primary sequence current measurements. Name Range Step Description © Arcteq Relays Ltd...
Page 58: Power And Energy Calculation
Power is divided into three magnitudes, apparent power S, active power P and reactive power Q. Energy measurement is calculating magnitude for active and reactive energy. Energy can be flowing to forward (exported) or reverse (imported) direction. © Arcteq Relays Ltd...
Page 59 Below is presented formula for three phase reactive power (Q) calculation: Active power direction can be to forward or reverse direction. Active power direction can be indicated simply by using Cos (φ). Cosine phi is calculated according the following formula: © Arcteq Relays Ltd...
Page 60 Faulty power and energy measurement is normally related to same issues (wiring errors, wrong voltage measurement mode, faulty frequency settings etc.). Settings Table. 5.2.2. - 23. Power and Energy meas. settings Name Range Step Default Description 0:Disabled EP meas 3ph 0:Disabled Enable active energy measurement. 1:Enabled © Arcteq Relays Ltd...
Page 61 DC 1…4 Pulse 0…1800 0.005 Total length of control pulse. Length Table. 5.2.2. - 25. DC 1…4 Pulse out settings Name Range Step Default Description DC 1…4 Pulse out OUT1…OUTx None selected Controlled physical outputs selection. © Arcteq Relays Ltd...
Page 62 Phase L3 active power -1x10 …1x10 L3 Reactive power (Q) 0.01kVar Phase L3 reactive power -1x10 …1x10 kVar L3 Tan(phi) 0.0001 Phase L3 active power direction -1x10 …1x10 L3 Cos(phi) 0.0001 Phase L3 reactive power direction -1x10 …1x10 © Arcteq Relays Ltd...
Page 63 Phase L1 total imported reactive inductive energy kVarh/MVarh kVarh/MVarh L1 Exp/Imp 0.01 Sum of imported and exported phase L1 reactive -1x10 …1x10 React.Ind.E.bal.MVarh kVarh/MVarh inductive energy kVarh/MVarh Table. 5.2.2. - 32. Phase L2 energy calculation Name Range Step Description © Arcteq Relays Ltd...
Page 64 Example for power calculation is represented here. Both wiring methods line to line –and line to neutral are checked with same signal injection. Voltage scaling is set to 20000:100V and current scaling is set to 1000:5A. Voltages (Line to neutral): Currents: =40.825V, 45.00° =2.500V, 0.00° =61.481V, -159.90° =2.500V, -120.00° © Arcteq Relays Ltd...
Page 65 L2 Tan -0.83 L3 Tan 0.11 3PH Tan 0.00 L1 Cos 0.71 L2 Cos 0.77 L3 Cos 0.99 3PH Cos 0.87 Voltages (Line to line): Currents: =100.00V, 30.00° =2.500V, 0.00° =100.00V, -90.00° =2.500V, -120.00° =2.500V, 120.00° © Arcteq Relays Ltd...
Page 66: Frequency Tracking And Scaling
5% in the measured phase currents. From the gure can also be seen that when the frequency is tracked the measurement accuracy is about -0.2% - 0.1% error in the whole frequency range when the sampling is adjusted according to the detected system frequency. © Arcteq Relays Ltd...
Page 67 FFT calculation has always whole power cycle in the buffer. Further improvement for the achieved measurement accuracy is the Arcteq patented method of calibrating of the analog channels against 8 system frequency points for both, magnitude and angle. This frequency dependent correction compensates the used measurement hardware frequency dependencies.
Page 68: General Menu
When this parameter is enabled it is possible for the user to force Enable stage protection, control and monitoring functions to different statuses like 0:Disabled 0:Disabled forcing START/TRIP. This is done in the function’s info-page with Status force 1:Enabled to parameter. © Arcteq Relays Ltd...
Page 69: Protection Functions
CT saturation condition. The operational logic consists of input magnitude processing, input magnitude selection, saturation check, threshold comparator, block signal check, time delay characteristics and output processing. The basic design of the protection function is 3-pole operation. © Arcteq Relays Ltd...
Page 70 Selection of the used AI channel is made with a setting parameter. In all possible input channel variations pre-fault condition is presented with 20 ms averaged history value from -20 ms of Start or Trip event. © Arcteq Relays Ltd...
Page 71 If blocking signal is active when pick-up element activates a BLOCKED signal will be generated and the function shall not process the situation further. If START function has been activated before blocking signal it will reset and the release time characteristics are processed as in case of when pick-up signal is reset. © Arcteq Relays Ltd...
Page 72 1294 NOC1 Phase B Trip On 1295 NOC1 Phase B Trip Off 1296 NOC1 Phase C Trip On 1297 NOC1 Phase C Trip Off 1344 NOC2 Start ON 1345 NOC2 Start OFF 1346 NOC2 Trip ON © Arcteq Relays Ltd...
Page 73 1472 NOC4 Start ON 1473 NOC4 Start OFF 1474 NOC4 Trip ON 1475 NOC4 Trip OFF 1476 NOC4 Block ON 1477 NOC4 Block OFF 1478 NOC4 Phase A Start On 1479 NOC4 Phase A Start Off © Arcteq Relays Ltd...
Page 74: Non-Directional Earth Fault I0> (50N/51N)
ON/OFF events to the common event buffer from each of the three output signals. In instant operating mode the function outputs START and TRIP events simultaneously with equivalent time stamp. Time stamp resolution is 1ms. Function provides also cumulative counters for START, TRIP and BLOCKED events. © Arcteq Relays Ltd...
Page 75 Activating this parameter permits changing the pick-up level of the 1:Disabled 1:Disabled comm bus protection stage via SCADA 2:Allowed 1:RMS De nes which available measured magnitude is used by the 2:TRMS Measured magnitude 1:RMS function 3:Peak-to- peak © Arcteq Relays Ltd...
Page 76 Operating time characteristics for trip and reset This function supports de nite time delay (DT) and inverse de nite minimum time (IDMT) delay types. For detailed information on these delay types refer to chapter General properties of a protection function. © Arcteq Relays Ltd...
Page 77 Fault Prefault Trip time Used Date & Time code type current current current remaining dd.mm.yyyy 1664-1861 A-G-R… Start average Trip -20 ms Start -200 ms 0ms -1800s 1 - 8 hh:mm:ss.mss Descr. C-G-F current averages averages © Arcteq Relays Ltd...
Page 78: Directional Overcurrent Idir> (67)
1ms. Function provides also cumulative counters for START, TRIP and BLOCKED events. Simpli ed function block diagram of DOC function is presented in the gure below. Figure. 5.4.3. - 61. Simpli ed function block diagram of the DOC function. © Arcteq Relays Ltd...
Page 79 Table. 5.4.3. - 51. General settings of the function Name Description Range Step Default 1:RMS Measured De nes which available measured magnitude is used by the 2:TRMS 1:RMS magnitude function. 3:Peak-to- peak © Arcteq Relays Ltd...
Page 80 Pick-up center -180.0…180.0° 0.1° 0° Angle Pick-up area ±1.0…170.0° 0.1° ±88° The pick-up activation of the function is not directly equal to start-signal generation of the function. Start signal is allowed if blocking condition is not active. © Arcteq Relays Ltd...
Page 81 User settable variables are binary signals from the system. Blocking signal needs to reach the IED minimum of 5 ms before the set operating delay has passedfor blocking to be active in time. © Arcteq Relays Ltd...
Page 82 Voltage measurable, Blocking Off 4872 DOC2 Measuring live angle On 4873 DOC2 Measuring live angle Off 4874 DOC2 Using voltmem On 4875 DOC2 Using voltmem Off 4928 DOC3 Start ON 4929 DOC3 Start OFF 4930 DOC3 Trip ON © Arcteq Relays Ltd...
Page 83 4800-4997 Descr. Fault type L1-G...L1-L2-L3 Trigger current Start average current Fault current Trip -20ms averages Prefault current Start -200ms averages Trip time remaining 0 s ... 1800 s Used SG 1...8 Setting group Operating angle 0...250 deg © Arcteq Relays Ltd...
Page 84: Directional Earth Fault I0Dir> (67N)
START and TRIP events simultaneously with equivalent time stamp. Time stamp resolution is 1ms. Function provides also cumulative counters for START, TRIP and BLOCKED events. Simpli ed function block diagram of the DEF function is presented in the gure below. © Arcteq Relays Ltd...
Page 85 Selection of the used AI channel is made with a setting parameter. In all possible input channel variations pre-fault condition is presented with 20 ms averaged history value from -20 ms of Start or Trip event. © Arcteq Relays Ltd...
Page 86 I0Cos&I0Sin Broadrange mode ±45.0… Angle Trip area size (Grounded network) 0.1° ±88° 135.0° Angle offset Protection area direction (Grounded network) 0.0…360.0° 0.1° 0.0° Angle blinder Io angle blinder (Petersen coil grounded) -90.0…0.0° 0.1° -90° © Arcteq Relays Ltd...
Page 87 There are many bene ts with Petersen coil grounded network. Amount of automatic reclosing is highly decreased and therefore maintenance of breakers is diminished. Arc faults die on their own and cables and equipment suffer less damage. In emergency situations line with earth fault can be used for certain time. © Arcteq Relays Ltd...
Page 88 –or over compensated. Directly or small impedance grounded network Figure. 5.4.4. - 66. Angle tracking of DEF function in grounded network model. © Arcteq Relays Ltd...
Page 89 Lastly, in a compensated network protection, the relay with traditional algorithms may sporadically detect an earth-fault in a long healthy feeder due to CT errors. For all these reasons, Arcteq has developed an improved alternative to these traditional directional earth fault protections.
Page 90 The measured voltage in the chosen voltage channel. Expected operating time Displays the expected operating time in case a fault occurs Time remaining to trip When the relay has picked up and is counting time towards pick-up © Arcteq Relays Ltd...
Page 91 Table. 5.4.4. - 62. Event codes of the DEF-function instances. Event Number Event channel Event block name Event Code Description 5184 DEF1 Start ON 5185 DEF1 Start OFF 5186 DEF1 Trip ON 5187 DEF1 Trip OFF 5188 DEF1 Block ON 5189 DEF1 Block OFF © Arcteq Relays Ltd...
Page 92 DEF function register content. This information is available in 12 last recorded events for all provided instances separately. Table. 5.4.4. - 63. Register content Column name Content description Event Code dd.mm.yyyy hh:mm:ss.mss © Arcteq Relays Ltd...
Page 93: Harmonic Overcurrent Ih> (50H/51H/68H)
START and TRIP events simultaneously with equivalent time stamp. Time stamp resolution is 1ms. Function provides also cumulative counters for START, TRIP and BLOCKED events. In the following gure is presented the simpli ed function block diagram of the HOC function. © Arcteq Relays Ltd...
Page 94 Selection of the used AI channel and monitored harmonic as well as per unit monitoring or percentage of fundamental monitoring is made with a setting parameter. In all possible input channel variations pre-fault condition is presented with 20 ms averaged history value from -20 ms of Start or Trip event. © Arcteq Relays Ltd...
Page 95 Pick-up setting Ih/IL 5.00…200.00 % 0.01 % 20.00 % (percentage monitoring) The pick-up activation of the function is not directly equal to start-signal generation of the function. Start signal is allowed if blocking condition is not active. © Arcteq Relays Ltd...
Page 96 2372 HOC1 Block ON 2373 HOC1 Block OFF 2432 HOC2 Start ON 2433 HOC2 Start OFF 2434 HOC2 Trip ON 2435 HOC2 Trip OFF 2436 HOC2 Block ON 2437 HOC2 Block OFF 2496 HOC3 Start ON © Arcteq Relays Ltd...
Page 97: Circuit Breaker Failure Protection Cbfp (50Bf)
ON/OFF events to the common event buffer from each of the two output signal. Time stamp resolution is 1ms. Function provides also cumulative counters for RETRIP, CBFP, CBFP START and BLOCKED events. © Arcteq Relays Ltd...
Page 98 Reset ratio of 97 % is inbuilt in the function and is always related to the settingvalue. The setting value is common for all measured phases and single-, dual- or all phases Im exceed of the Iset value will cause pick-up operation of the function. © Arcteq Relays Ltd...
Page 99 User settable variables are binary signals from the system. Blocking signal needs to reach the IED minimum of 5 ms before the set operating delay has passedfor blocking to be active in time. © Arcteq Relays Ltd...
Page 100 CBFP start timer, this setting de nes how long the starting condition has to last CBFP 0.005s 0.200s 1800.000s before CBFP signal is activated. A few typical cased of CBFP are presented in the following gures. © Arcteq Relays Ltd...
Page 101 Retrip is wired in parallel from its own output contact in the IED to the second tripping coil of the circuit breaker. CBFP signal to upstream is wired normally from its output contact in the IED to the upstream / incomer breaker. In following are few operational cases presented regarding to the different applications. © Arcteq Relays Ltd...
Page 102 CBFP will be issued to upstream breaker. If the primary protection function clears the fault e.g. the circuit breaker operates normally the counters for retrip and CBFP are reset immediately the current is measured below the threshold settings. © Arcteq Relays Ltd...
Page 103 This con guration allows the CBFP to be controlled on current based functions only and other function trips can be excluded from the CBFP functionality. © Arcteq Relays Ltd...
Page 104 This con guration allows the CBFP to be controlled on current based functions with added security from the current monitoring of the CBFP function and other function trips can be also included to the CBFP functionality. © Arcteq Relays Ltd...
Page 105 Probably the most common application is the case where the circuit breaker trip coil is controlled with the IED trip output and CBFP is controlled with one dedicated CBFP contact. In following are few operational cases presented regarding to the different applications and settings of the CBFP function. © Arcteq Relays Ltd...
Page 106 CBFP will be issued to upstream breaker. If the primary protection function clears the fault e.g. the circuit breaker operates normally the counter for CBFP are reset immediately the current is measured below the threshold settings. © Arcteq Relays Ltd...
Page 107 This con guration allows the CBFP to be controlled on current based functions only and other function trips can be excluded from the CBFP functionality. © Arcteq Relays Ltd...
Page 108 This con guration allows the CBFP to be controlled on current based functions with added security from the current monitoring of the CBFP function and other function trips can be also included to the CBFP functionality. © Arcteq Relays Ltd...
Page 109 CBFP for the upstream breaker tripping. In this example no retripping is utilized and CBFP signal is used for the incomer trip from the outgoing breaker trip signal. The trip signal can be transported in between of the IED:s also by using GOOSE messages if so wanted. © Arcteq Relays Ltd...
Page 110 Table. 5.4.6. - 73. Event codes of the CBFP function instance Event Number Event channel Event block name Event Code Description 2816 CBF1 Start ON 2817 CBF1 Start OFF 2818 CBF1 Retrip ON 2819 CBF1 Retrip OFF 2820 CBF1 CBFP ON © Arcteq Relays Ltd...
Page 111: Restricted Earth Fault / Cable End Differential (Ref) I0D> (87N)
ON/OFF events to the common event buffer from each of the two output signals. Time stamp resolution is 1ms. Function provides cumulative counters for REF Trip and BLOCKED events. In the following gure is presented the simpli ed function block diagram of the REF function. © Arcteq Relays Ltd...
Page 112 The following general settings de ne the general behavior of the function. These settings are static i.e. it is not possible change them with setting group switching. Table. 5.4.7. - 76. General settings of the REF stage (not SG selectable) Name Range Step Default Description © Arcteq Relays Ltd...
Page 113 The pick-up activation of the function is not directly equal to trip-signal generation of the function. Trip signal is allowed if blocking condition is not active. In the following gure is presented the differential characteristics with default settings. Figure. 5.4.7. - 82. Differential characteristics for REF function with default settings. © Arcteq Relays Ltd...
Page 114 User settable variables are binary signals from the system. Blocking signal needs to reach the IED minimum of 5 ms before the set operating delay has passedfor blocking to be active in time. typical applications for this function are presented in the following gures. © Arcteq Relays Ltd...
Page 115 In case of outside earth fault the circulating residual current in the faulty phase winding is not causing tripping because the comparison of measured starpoint current and calculated residual current differential is close to zero. © Arcteq Relays Ltd...
Page 116 To main event buffer it is possible to select status “On” or “Off” messages. 12 last registers are available in the function where the triggering event of the function (Trip activated or blocked) is recorded with time stamp and process data values. © Arcteq Relays Ltd...
Page 117: Overvoltage U
START and TRIP events simultaneously with equivalent time stamp. Time stamp resolution is 1ms. Function provides also cumulative counters for START, TRIP and BLOCKED events. In the following gure is presented the simpli ed function block diagram of the OV function. © Arcteq Relays Ltd...
Page 118 Selection of the used AI channel is made with a setting parameter. In all possible input channel variations pre-fault condition is presented with 20 ms averaged history value from -20 ms of Start or Trip event. © Arcteq Relays Ltd...
Page 119 Version: 2.00 Figure. 5.4.8. - 88. Selectable measurement magnitudes with 3LN+U4 VT connection. Figure. 5.4.8. - 89. Selectable measurement magnitudes with 3LL+U4 VT connection. If no residual voltage is connected phase- to-earth voltages are not available. © Arcteq Relays Ltd...
Page 120 Primary voltage required for tripping. The displayed pick-up voltage level depends on the pick- U< Pick-up setting V up setting and the voltage transformer settings. Expected Displays the expected operating time in case a fault occurs operating time © Arcteq Relays Ltd...
Page 121 Table. 5.4.8. - 83. Operating time characteristics setting parameters. Name Range Step Default Description Selection of the delay type time counter. Selection possibilities are dependent Delay Type (IDMT, Inverse De nite Minimum Time) and independent (DT, De nite Time) IDMT characteristics. © Arcteq Relays Ltd...
Page 122 Table. 5.4.8. - 85. Event codes of the OV function instance 1 – 4. Event Number Event channel Event block name Event Code Description 5440 Start ON 5441 Start OFF 5442 Trip ON 5443 Trip OFF 5444 Block ON 5445 Block OFF 5504 Start ON © Arcteq Relays Ltd...
Page 123: Undervoltage U
The function can operate on instant or time delayed mode. In time delayed mode the operation can be selected for de nite time or IDMT. The operational logic consists of input magnitude processing, input magnitude selection, threshold comparator, two block signal check, time delay characteristics and output processing. © Arcteq Relays Ltd...
Page 124 0: P-P Voltages 1: P-E Measured Selection of P-P or P-E voltages. Additionally U3 or U4 input can be 0: P-P Voltages magnitude assigned as the voltage channel to be supervised. Voltages 2: U3Input (2LL-U3SS) 3: U4InputSS © Arcteq Relays Ltd...
Page 125 20 ms averaged history value from -20 ms of Start or Trip event. Figure. 5.4.9. - 92. Selectable measurement magnitudes with 3LN+U4 VT connection. Figure. 5.4.9. - 93. Selectable measurement magnitudes with 3LL+U4 VT connection. If no residual voltage is connected, phase-to-earth voltages are not available. © Arcteq Relays Ltd...
Page 126 If the measured voltage has dropped below the Block setting the blocking will persist until all of the line voltages have risen over the U< pick-up setting. Please see the image for a visualization of this function. © Arcteq Relays Ltd...
Page 127 Blocking signal can be tested also in the commissioning phase of the stage by software switch signal when relay common and global testing mode is activated. © Arcteq Relays Ltd...
Page 128 Resetting characteristics selection either time delayed or instant after pick- Delayed Pick- up element is released. If activated the start signal is reset after set release up release time delay. © Arcteq Relays Ltd...
Page 129 Trip ON 5763 Trip OFF 5764 Block ON 5765 Block OFF 5766 Undervoltage Block On 5767 Undervoltage Block Off 5824 Start ON 5825 Start OFF 5826 Trip ON 5827 Trip OFF 5828 Block ON 5829 Block OFF © Arcteq Relays Ltd...
Page 130: Neutral Voltage U0> (59N)
100/√3 V = 57.74 V. Below is presented the formula for symmetric component calculation and therefore to zero sequence voltage calculation. See zero sequence calculation examples below. Figure. 5.4.10. - 96. Normal situation © Arcteq Relays Ltd...
Page 131 START and TRIP events simultaneously with equivalent time stamp. Time stamp resolution is 1ms. Function provides also cumulative counters for START, TRIP and BLOCKED events. In the following gure is presented the simpli ed function block diagram of the NOV function. © Arcteq Relays Ltd...
Page 132 Ratio between measured/calculated neutral voltage and the pick-up value. moment General settings The following general settings de ne the general behavior of the function. These settings are static i.e. it is not possible change them with setting group switching. © Arcteq Relays Ltd...
Page 133 Uset value and thus pick-up element is active (independent time characteristics). Inverse de nite minimum time (IDMT) will give the trip signal in time which is in relation of the set pick-up voltage Uset and measured voltage Um (dependent time characteristics). IDMT function delay follows this formula: © Arcteq Relays Ltd...
Page 134 The NOV function generates events and registers from the status changes of start, trip and blocked. To main event buffer is possible to select status “On” or “Off” messages. The NOV function offers four independent instances which events are segregated for each instance operation. © Arcteq Relays Ltd...
Page 135 Trigger Fault Prefault Trip time Used Date & Time code type voltage voltage voltage remaining dd.mm.yyyy 5952-6149 L1-G…L1- Start average Trip -20ms Start -200 ms 0ms -1800s 1 - 8 hh:mm:ss.mss Descr. L2-L3 voltage averages averages © Arcteq Relays Ltd...
Page 136: Sequence Voltage U1/U2>/<(59P/27P/47)
Below is presented the formula for symmetric component calculation and therefore to VUB positive sequence calculation. See positive sequence calculation examples below. Figure. 5.4.11. - 100. Positive sequence component vector examples. Earth fault in isolated network. © Arcteq Relays Ltd...
Page 137 Close distance short circuit between phases 1 and 3. Negative sequence calculation Below is presented the formula for symmetric component calculation and therefore to NSV calculation. See negative sequence calculation examples below. Figure. 5.4.11. - 101. Negative sequence component vector examples. © Arcteq Relays Ltd...
Page 138 Figure. 5.4.11. - 102. Simpli ed function block diagram of the sequence voltage function. Measured input values The function block uses analog voltage measurement values. Function block always utilizes fundamental frequency RMS values. -20 ms averaged value of the selected magnitude is used for the pre-fault data registering. © Arcteq Relays Ltd...
Page 139 Under block setting Ublk the blocking will persist until all of the line voltages have risen over the U< pick-up setting. Please see the image for a visualization of this function. If block level is set to zero, blocking is not in use. © Arcteq Relays Ltd...
Page 140 From blocking of the function a HMI display event as well as time stamped blocking event with information of the startup voltage values and fault type is issued. © Arcteq Relays Ltd...
Page 141 8450 VUB3 Trip ON 8451 VUB3 Trip OFF 8452 VUB3 Block ON 8453 VUB3 Block OFF 8512 VUB4 Start ON 8513 VUB4 Start OFF 8514 VUB4 Trip ON 8515 VUB4 Trip OFF 8516 VUB4 Block ON © Arcteq Relays Ltd...
Page 142: Over- And Underfrequency F>/< (81O/81U)
START and TRIP events simultaneously with equivalent time stamp. Time stamp resolution is 1ms. Function provides also cumulative counters for START, TRIP and BLOCKED events. In the following gure is presented the simpli ed function block diagram of the FRQV function. © Arcteq Relays Ltd...
Page 143 Reset ratio of 97 % is inbuilt in the function and is always related to the pick-up value. Table. 5.4.12. - 108. Pick-up characteristics setting Name Description Range Step Default fset> fset>> Pick-up setting 10.00…80.00Hz 0.01Hz 51Hz fset>>> fset>>>> © Arcteq Relays Ltd...
Page 144 Trip ON 6339 FRQV1 f> Trip OFF 6340 FRQV1 f>> Start ON 6341 FRQV1 f>> Start OFF 6342 FRQV1 f>> Trip ON 6343 FRQV1 f>> Trip OFF 6344 FRQV1 f>>> Start ON 6345 FRQV1 f>>> Start OFF © Arcteq Relays Ltd...
Page 145 FRQV1 f<<< Block OFF 6382 FRQV1 f<<<< Block ON 6383 FRQV1 f<<<< Block OFF In the table below is presented the structure of FSP function register content. This information is available in 12 last recorded events. © Arcteq Relays Ltd...
Page 146: Rate-Of-Change Of Frequency Protection Df/Dt (81R)
Frequency protection utilizes total of eight separate setting groups which can be selected from one common source. The function can operate on instant or time delayed mode. © Arcteq Relays Ltd...
Page 147 The f>/< limit value is used to block the operation of the function near the nominal frequency. Table. 5.4.13. - 112. Pick-up characteristics setting Name Description Range Step Default df/dt>/<(1…8)pick-up Pick-up setting 0.01…10.00Hz/s 0.01Hz/s 0.2 Hz/s © Arcteq Relays Ltd...
Page 148 </> (2) Start ON 6597 DFT1 df/dt </> (2) Start OFF 6598 DFT1 df/dt </> (2) Trip ON 6599 DFT1 df/dt </> (2) Trip OFF 6600 DFT1 df/dt </> (3) Start ON 6601 DFT1 df/dt </> (3) Start OFF © Arcteq Relays Ltd...
Page 149 6638 DFT1 df/dt </> (8) Block ON 6639 DFT1 df/dt </> (8) Block OFF In the table below is presented the structure of FSP function register content. This information is available in 12 last recorded events. © Arcteq Relays Ltd...
Page 150: Over Power P> (32O)
Three phase active power value is used for the function block. For pre-fault data registering -20ms averaged value is used. If the protection relay has more than one CT module parameter Measured side determines which current measurement is used for the power measurement. © Arcteq Relays Ltd...
Page 151 In the function is available 12 last registers where the triggering event of the function (start, trip or blocked) is recorded with time stamp and process data values. © Arcteq Relays Ltd...
Page 152: Under Power P< (32U)
START and TRIP events simultaneously with equivalent time stamp. Time stamp resolution is 1ms. Function provides also cumulative counters for START, TRIP and BLOCKED events. In the following gure is presented the simpli ed function block diagram of the UPW function. © Arcteq Relays Ltd...
Page 153 Pset< and measured magnitude (Pm). Reset ratio of 97 % is inbuilt in the function and is always related to the Pset< value. Figure. 5.4.15. - 109. Activation and deactivation characteristics of the Under Power functions Low Power Blocking. © Arcteq Relays Ltd...
Page 154 Table. 5.4.15. - 121. Event codes of the UPW function. Event Number Event channel Event block name Event Code Description 6464 UPW1 Start ON 6465 UPW1 Start OFF 6466 UPW1 Trip ON 6467 UPW1 Trip OFF © Arcteq Relays Ltd...
Page 155: Reverse Power Pr (32R)
1ms. Function provides also cumulative counters for START, TRIP and BLOCKED events. In the following gure is presented the simpli ed function block diagram of the RPW function. Figure. 5.4.16. - 110. Simpli ed function block diagram of the RPW function. © Arcteq Relays Ltd...
Page 156 5 ms before the set operating delay has passedfor blocking to be active in time. Operating time characteristics for trip and reset This function supports de nite time delay (DT). For detailed information on this delay type refer to chapter General properties of a protection function. © Arcteq Relays Ltd...
Page 157: Line Thermal Overload Protection Tf> (49F)
“memory” since it is integral function which tells apart this function from normal overcurrent function operating principle for the overload protection applications. Thermal image for the TOLF function is calculated according to equation described below: , where © Arcteq Relays Ltd...
Page 158 100% but never exceeds it. With a single time constant model cooling of the object follows this same behavior reversible to the heating when the current feeding is completely zero. © Arcteq Relays Ltd...
Page 159 Ambient temperature compensation takes into account the set minimum and maximum temperature and load capacity of the protected object and measured or set ambient temperature. The calculated coef cient is linear correction factor which is presented with following formulas: © Arcteq Relays Ltd...
Page 160 = Ambient temperature reference (can be set in ̊ C or ̊ F , the temperature in which the given manufacturer presumptions apply and the temperature correction factor is 1.0) Figure. 5.4.17. - 112. Ambient temperature coef cient calculation examples when reference temperature is +15 C with 3 point linear approximation and settable correction curve. © Arcteq Relays Ltd...
Page 161 In the manufacturer given data the temperature coef cient may be informed as in gure above. Figure. 5.4.17. - 114. Settings of the TOLF function ambient temperature coef cient curve. Temperature and coef cient pairs are set to the TOLF function settable curve. © Arcteq Relays Ltd...
Page 162 For cable the initial data may be as follows (example data from Prysmian cables datasheet). Figure. 5.4.17. - 115. Initial data of the cable temperature characteristics and current ratings with different installations and copper or aluminium conductors. © Arcteq Relays Ltd...
Page 163 Figure. 5.4.17. - 116. General presumptions of the high voltage cables. If the installation conditions vary from the presumption conditions, manufacturers may give additional information of how the current carrying capacity should be corrected in order to match changed conditions. © Arcteq Relays Ltd...
Page 164 AQ-F205 Instruction manual Version: 2.00 Figure. 5.4.17. - 117. Correction coef cients for the current carrying capacity given by the manufacturer (Prysmian). © Arcteq Relays Ltd...
Page 165 Rest of the settings are found from the initial data for the cable: In = 680 A, Tmax = 90 ̊ C , Tamb = 15 ̊ C , Tref = 15 ̊ C and k = 1.0 © Arcteq Relays Ltd...
Page 166 68.35 ̊ C is reached. This represents 71 % of the thermal capacity used. According to the data sheet with this current temperature should be around 65 ̊ C and can be seen that the model is now 3 degrees overprotecting. © Arcteq Relays Ltd...
Page 167 15 ̊ C . Cable thermal time constant is 183.8 min. From these given initial data also the k correction factor can be calculated by multiplying them together (k factor related information in red color): © Arcteq Relays Ltd...
Page 168 If in this case the k factor would not been set the thermal image would show about 68 ̊ C temperature when it in reality would be 96 ̊ C . © Arcteq Relays Ltd...
Page 169 550A current instead of the initial data given current of 680A. Estimating trip time Calculated effective nominal current: × tamb × I , where fact fact is the service factor fact tamb is the ambient temperature factor fact © Arcteq Relays Ltd...
Page 170 ON/OFF events to the common event buffer from each of the two output signal. Time stamp resolution is 1ms. Function provides also cumulative counters for TOLF Trip, Alarm 1, Alarm 2, Inhibit and BLOCKED events. In the following gure is presented the simpli ed function block diagram of the TOLF function. © Arcteq Relays Ltd...
Page 171 Time constant setting. This time constant is used for 0.1… tau (t const) 0.1min 10.0min heating and cooling of the protected object. Setting is 500.0min visible if Set or estimate tau setting is selected to “Set”. © Arcteq Relays Ltd...
Page 172 “Linear est.” 0.01… Temperature correction factor for minimum ambient temperature k at min amb temp 0.01xIn 1.00xIn 5.00xIn setting. Setting is visible if Ambient lin. or curve is set to “Linear est.” © Arcteq Relays Ltd...
Page 173 If the blocking signal is not activated when the pick-up element activates, a Trip signal is generated and the function proceeds to the time characteristics calculation. © Arcteq Relays Ltd...
Page 174 - TF> Alarm 2 time to rel.: Time to theta to reach under Alarm 2 limit when cooling - TF> Inhibit time to rel.: Time to theta to reach under Inhibit limit when cooling Table. 5.4.17. - 135. Counters Name Description / values © Arcteq Relays Ltd...
Page 175: Voltage Memory Function
The determination is made by comparing the angle between the operating quantity (zone/trip area) to actual measured quantity. The function will produce an output in case required terms are met. © Arcteq Relays Ltd...
Page 176 5 ms IL3RMS Fundamental RMS measurement of phase L3/C current 5 ms Fundamental RMS measurement of voltage U 5 ms Fundamental RMS measurement of voltage U 5 ms Fundamental RMS measurement of voltage U 5 ms © Arcteq Relays Ltd...
Page 177 50/60Hz, there could be an error in current magnitude and angle measurement. To minimize errors, it is preferable that while voltages are gone, it is better to measure frequency, and to also perform protection-based sampling from the current. © Arcteq Relays Ltd...
Page 178: Control Functions
If setting group is not activated but is tried to control on with SGS an event of failed setting group change is issued. In the following gure is presented the simpli ed function block diagram of the SGS function. © Arcteq Relays Ltd...
Page 179 1 shall not be automatically selected and the logic needs separate control to set the active setting group back to group 1. Figure. 5.5.1. - 127. Group changing example sequence with pulse control only or with pulses and static signal. © Arcteq Relays Ltd...
Page 180 Setting group 3 selection, third highest priority input for setting group control. Can be Setting 0:Not active controlled with pulse or steady state signals. If steady state signal is applied no lower group3 active 1:Active priority than SG1 and SG2 requests shall be processed. © Arcteq Relays Ltd...
Page 181 SG8 Enabled 4173 SG8 Disabled 4174 SG1 Request On 4175 SG1 Request Off 4176 SG2 Request On 4177 SG2 Request Off 4178 SG3 Request On 4179 SG3 Request Off 4180 SG4 Request On 4181 SG4 Request Off © Arcteq Relays Ltd...
Page 182 SG7 Active On 4215 SG7 Active Off 4216 SG8 Active On 4217 SG8 Active Off Example applications for setting group control In this chapter are presented some of most common applications for setting group changing requirements. © Arcteq Relays Ltd...
Page 183 1 wire control. By that way single wire loss will not effect to the correct setting group selection. Figure. 5.5.1. - 130. Setting group control with 2 wire connection from Petersen coil status. © Arcteq Relays Ltd...
Page 184 SG while with “On” signal would be controlled higher priority SG1. By this way after the automatic control is over SG would return automatically to SG2. Figure. 5.5.1. - 133. Example of setting default SG constant signal. © Arcteq Relays Ltd...
Page 185: Object Control And Monitoring (Obj)
The signals can be divided into Monitor, Command and Control signals based on how they are dealt in the function. These input signals are also setting parameters for the function. The amount of needed control and setting parameters depend of the selected object type. © Arcteq Relays Ltd...
Page 186 Remote Close signal from communication protocols. Signal Objectx Remote Open Pre-assigned Remote Open signal from communication protocols. Signal Objectx Local Close Local Close signal from HMI, either select-execute from the mimic SLD or direct Pre-assigned Signal from the local panel pushbutton. © Arcteq Relays Ltd...
Page 187 CB, WD cart in or out and if object ready is in use (MC) or just monitoring of status (E.switch). Disconnector (NC) Selection if synchrocheck condition is in use for circuit breaker close Synchrocheck command. © Arcteq Relays Ltd...
Page 188 For each controllable object can be set interlocking and blocking conditions for open and close separately. Blocking and interlocking can be based on other object statuses, software function or binary input. For example, interlocking can be set for object close based on earthing disconnector position. © Arcteq Relays Ltd...
Page 189 OBJ 1...5 Object Open OBJ 1...5 Object Close OBJ 1...5 Object Bad OBJ 1...5 WD Intermediate OBJ 1...5 WD Out OBJ 1...5 WD in OBJ 1...5 WD Bad OBJ 1...5 Open Request On OBJ 1...5 Open Fail © Arcteq Relays Ltd...
Page 190: Indicator Object Monitoring (Cin)
Events can be enabled or disabled according to the application requirements. Events The indicator function generates events and registers from the status changes of monitored signals. To main event buffer is possible to select status “On” or “Off” messages. © Arcteq Relays Ltd...
Page 191: Auto-Reclosing 0
In this category faults the autorecloser should be aware of fault location before autoreclosing is applied to the faulty line. © Arcteq Relays Ltd...
Page 192 Also typically medium voltage overhead line consists of only consumers and no power generation which leads to that the most stable supply continuity is the main objective. © Arcteq Relays Ltd...
Page 193 Figure. 5.5.4. - 137. Example of signals assignment for autoreclosing sequences Figure. 5.5.4. - 138. Autoreclosing shot settings, two requests and two shots are initialized. © Arcteq Relays Ltd...
Page 194 Autorecloser therefore only monitors the status of the directional earth fault stage tripping before initiating request and shots. © Arcteq Relays Ltd...
Page 195 Shot for this request. For this scheme is not anymore available shots so autorecloser initializes Final Trip state and drops AR Running, Shot2 Running and REQ2 Running signals. Autorecloser enters to Lock-out state preventing further requests for reclosing. © Arcteq Relays Ltd...
Page 196 AR running, AR2 Requested and Shot1 Running signals are activated. 3. Circuit breaker is opened and I0Dir> Trip signal is released and simultaneously REQ2 signal for autorecloser is released. Recloser starts to calculate the Shot1 Dead Time for closing the breaker. © Arcteq Relays Ltd...
Page 197 In this example fault is cleared by the high speed autoreclosing. Figure. 5.5.4. - 143. Settings for earth fault reclosing with two shots. This type of sequence represents 75-85% of all the faults in the medium voltage overhead line network. © Arcteq Relays Ltd...
Page 198 In this scheme the rst start time is set to longer than in the unsuccessful reclose shots arcing time if the fault persists then the allowed towards fault time is reduced. © Arcteq Relays Ltd...
Page 199 5. Circuit breaker is closed and since fault is not cleared by the Shot1 given non-energized time, pick-up of I> is detected. Close command is drop off after the breaker closed indication is received and the autorecloser starts to calculate Reclaim time for Shot1 simultaneously with the arcing time. © Arcteq Relays Ltd...
Page 200 In this example fault persist for the high speed autoreclosing but is cleared by time delayed autoreclosing. Figure. 5.5.4. - 147. Settings for overcurrent reclosing with two shots. This type of sequence represents 10-15% of all the faults in the medium voltage overhead line network. © Arcteq Relays Ltd...
Page 201 0 when they are not needed. Recloser function will skip all timers set to 0. Also is possible to set the AR Reclaim not to be used after successful reclosing cycle. © Arcteq Relays Ltd...
Page 202 Recloser starts to calculate the Shot1 Dead Time for closing the breaker. 4. Dead Time for Shot1 is exceeded and autorecloser sends close request for the Object breaker, the close conditions are met and the breaker close command is sent to breaker close coil. © Arcteq Relays Ltd...
Page 203 This same principle should apply for any ring or meshed network where in the same line power can be fed from more than one direction. For typical consumer radial network this problem does not exist. © Arcteq Relays Ltd...
Page 204 Autorecloser function can be divided into starter, shot selector state machine, sorter and shot blocks which operate dynamically during the reclosing cycles based on the given settings and input signals monitoring. Autorecloser behavior can be changed dynamically even during the cycle based on programmed reclosing scheme and active requests. © Arcteq Relays Ltd...
Page 205 Input for dynamically block the autoreclosing. When input is activated the recloser will halt its binary spontaneous operation and refuses any further requests. When signal is released recloser will continue its signal in blocking operation as were before receiving this signal. the IED © Arcteq Relays Ltd...
Page 206 AR Running well as into communication protocols. When autorecloser is executing shot requested by AR1 priority this signal is activated. Signal can be AR1 Request On connected to any relay IO as well as into communication protocols. © Arcteq Relays Ltd...
Page 207 Selection of the monitored / controlled breaker object. This selection de nes the Object the 2:Object 3 autorecloser monitoring and control signals are issued. This selection can be changed Object 3:Object 4 dynamically by setting group selection in real time in the IED. Default setting is Object 1. 4:Object 5 © Arcteq Relays Ltd...
Page 208 0.000s Arcing or Discrimination time is disabled in the autoreclosing scheme. This 1,2,3,4,5 step of 0.005s selection can be changed dynamically by setting group selection in real time in the Action time IED. Default setting 0.000s. © Arcteq Relays Ltd...
Page 209 60 second dead time. If AR4 or 5 requests are activated, from the corresponding rows from left to right and from up to down can be seen the autoreclosing schemes for each request. © Arcteq Relays Ltd...
Page 210 The AR function generates events and registers from the status changes of monitored signals as well as control command fails and operations. To main event buffer it is possible to select status “On” or “Off” messages. © Arcteq Relays Ltd...
Page 211 AR5 Request On 4060 AR5 Request Off 4061 Critical Request On 4062 Critical Request Off 4063 AR Running On 4064 AR Running Off 4065 Shot 1 Execute On 4066 Shot 1 Execute Off 4067 Shot 2 Execute On © Arcteq Relays Ltd...
Page 212 AR Status:, AR is ready, AR is not running, AR2 Requested, Executing Shot1 dd.mm.yyyy hh:mm:ss.mss AR Timers: No timers running 0.000 s AR Status:, AR is ready, AR is not running, Start time counting, AR2 Requested, Executing Shot1 dd.mm.yyyy hh:mm:ss.mss AR Timers: Start Delay 0.000 s © Arcteq Relays Ltd...
Page 213 OBJ1 Close Command On dd.mm.yyyy hh:mm:ss.mss 2962 OBJ1 Status Change On dd.mm.yyyy hh:mm:ss.mss 2944 OBJ1 Object Intermediate dd.mm.yyyy hh:mm:ss.mss 2946 OBJ1 Object Close dd.mm.yyyy hh:mm:ss.mss 2961 OBJ1 Close Command Off dd.mm.yyyy hh:mm:ss.mss 4087 AR1 Shot Reclaim Time On © Arcteq Relays Ltd...
Page 214: Cold Load Pick-Up (Clpu)
Outputs of the function are CLPU act and Blocked signals. Setting parameters are static inputs for the function which are changed only by user input in the setup phase of the function. CLPU function utilizes total of eight separate setting groups which can be selected from one common source. © Arcteq Relays Ltd...
Page 215 (Im) per all three phases. Reset ratio of 97 % is inbuilt in the function and is always related to the settingvalue. The setting value is common for all measured phases and single-, dual- or all phases Im exceed of the Iset value will cause pick-up operation of the function. © Arcteq Relays Ltd...
Page 216 Also this parameter operates as “reclaim” time for the CLPU function in case the inrush current is not immediately initiated in the start-up sequence. Few typical cases of CLPU situations are presented in the gures below. © Arcteq Relays Ltd...
Page 217 Tmax time. When the measured current is in between of ILow and IHigh the start-up condition is considered to be over. The CLPU signal can be prolonged over this time by setting Tmin to higher value than 0.000s. © Arcteq Relays Ltd...
Page 218 CLPU signal is issued. If the CLPU is wanted to be activated in shorter time or directly when the measured current is below the ILow setting the Tset parameter can be set to lower value and even to 0.000s delay for immediate operation. © Arcteq Relays Ltd...
Page 219 CLPU activates after current has been under ILow setting for time Tset . When current exceed the IHigh setting the maximum allowed CLPU timer start to count until Tmax time. In this example the measured current is exceeding the IOver setting during the startup situation and causes the CLPU signal immediate release. © Arcteq Relays Ltd...
Page 220 IHigh setting the maximum allowed CLPU timer start to count until Tmax time. In this example the measured current is over the set IHigh setting until Tmax time and causes the release of the CLPU signal. © Arcteq Relays Ltd...
Page 221 CLPU activates after current has been under ILow setting for time Tset. When current exceed the ILow setting but not IHigh the CLPU signal is active until the Tmin time. If no inrush is noticed during the Tmin time the CLPU signal is released. © Arcteq Relays Ltd...
Page 222 Table. 5.5.5. - 160. Event codes of the CLPU function Event Number Event channel Event block name Event Code Description 2688 CLP1 LowStart ON 2689 CLP1 LowStart OFF 2690 CLP1 HighStart ON 2691 CLP1 HighStart OFF 2692 CLP1 LoadNormal ON © Arcteq Relays Ltd...
Page 223: Switch On To Fault (Sotf)
In the following gure is presented the simpli ed function block diagram of the SOTF function. Figure. 5.5.6. - 161. Simpli ed function block diagram of the SOTF function. © Arcteq Relays Ltd...
Page 224 SOTF Init On 3905 SOF1 SOTF Init Off 3906 SOF1 SOTF Block On 3907 SOF1 SOTF Block Off 3908 SOF1 SOTF Active On 3909 SOF1 SOTF Active Off 3910 SOF1 SOTF Trip On 3911 SOF1 SOTF Trip Off © Arcteq Relays Ltd...
Page 225: Synchrocheck Function Δv/Δa/Δf
SYN3 supervises the synchronization condition between U3 and U4 channels. Figure. 5.5.7. - 162. Example connection of synchrocheck function in 3LN+U4 mode when the SYN1 stage is in use and UL1 is the reference voltage. © Arcteq Relays Ltd...
Page 226 Figure. 5.5.7. - 163. Example connection of synchrocheck function in 2LL+U3+U0 mode when the SYN2 stage is in use and UL12 is the reference voltage. Figure. 5.5.7. - 164. Example connection of synchrocheck function in 2LL+U3+U4 mode when the SYN3 stage is in use and UL12 is the reference voltage. © Arcteq Relays Ltd...
Page 227 AQ-F205 Instruction manual Version: 2.00 Figure. 5.5.7. - 165. Example application of synchrocheck over one breaker in 3LL and 3LN VT connection situations. © Arcteq Relays Ltd...
Page 228 AQ-F205 Instruction manual Version: 2.00 Figure. 5.5.7. - 166. Example application of synchrocheck over one breaker with 2LL VT connection. © Arcteq Relays Ltd...
Page 229 AQ-F205 Instruction manual Version: 2.00 Figure. 5.5.7. - 167. Example application of synchrocheck over two breakers in 2LL+U3+U4 mode. Reference of the U3 or U4 voltages may be U12, U23 or U31. © Arcteq Relays Ltd...
Page 230 U live > and U dead < parameters. Parameter Syn U conditions is used to determine which conditions have to be met in addition to the previously mentioned three aspects to consider the systems synchronized. © Arcteq Relays Ltd...
Page 231 If SYN OK function has been activated before blocking signal it will reset. From blocking of the function a HMI display event as well as time stamped blocking event with information of the startup voltage values and fault type is issued. © Arcteq Relays Ltd...
Page 232 The synchrocheck function generates events and registers from the status changes like syn ok, bypass and blocked. To main event buffer is possible to select status “On” or “Off” messages. The synchrocheck function offers three independent instances which events are segregated for each instance operation. © Arcteq Relays Ltd...
Page 233 SYN3 Blocked Off 2910 SYN1 SYN3 Ok On 2911 SYN1 SYN3 Ok Off 2912 SYN1 SYN3 Bypass On 2913 SYN1 SYN3 Bypass Off 2914 SYN1 SYN3 Volt condition OK 2915 SYN1 SYN3 Volt cond not match © Arcteq Relays Ltd...
Page 234: Programmable Control Switch
Table. 5.5.8. - 170. Event codes of the PCS function Event Number Event channel Event block name Event Code Description Switch1 On Switch1 Off Switch2 On Switch2 Off Switch3 On Switch3 Off Switch4 On Switch4 Off Switch5 On Switch5 Off © Arcteq Relays Ltd...
Page 235: Monitoring Functions
ON/OFF events to the common event buffer from each of the two output signal. Time stamp resolution is 1ms. Function provides also cumulative counters for CTS alarm and BLOCKED events. Simpli ed function block diagram of CTS functionIn is presented in the following gure . © Arcteq Relays Ltd...
Page 236 Fundamental angle of phase L2/B current 5 ms IL3 Ang Fundamental angle of phase L3/C current 5 ms I01 Ang Fundamental angle of residual input I01 5 ms I02 Ang Fundamental angle of residual input I02 5 ms © Arcteq Relays Ltd...
Page 237 If blocking signal is active when pick-up element activates a BLOCKED signal will be generated and the function shall not process the situation further. If START function has been activated before blocking signal it will reset and the release time characteristics are processed as in case of when pick-up signal is reset. © Arcteq Relays Ltd...
Page 238 General properties of a protection function. Typical CTS cases In following gures are presented few typical cases of CTS situations and setting effects. Figure. 5.6.1. - 171. System in case when all is working properly and no fault is present. © Arcteq Relays Ltd...
Page 239 CTS conditions and as well as in the secondary circuit fault the CTS will issue alarm if this state continues until the set time has been spent. This means that the CTS do not supervise only the secondary circuit but also the primary circuit. © Arcteq Relays Ltd...
Page 240 By adjusting the Iset Highlimit and Iset Lowlimit setting parameters according to the application normal behavior, the operation of the CTS can be set to very sensitive for broken circuit/conductor faults. © Arcteq Relays Ltd...
Page 241 Figure. 5.6.1. - 177. System in case when secondary phase current wiring is broken. When phase current wire is broken all of the conditions are met in the CTS and alarm shall be issued in case if the situation continues until the set alarming time is met. © Arcteq Relays Ltd...
Page 242 Function includes 12 last registers where the triggering event of the function (ALARM activated or blocked) is recorded with time stamp and process data values. Table. 5.6.1. - 174. Event codes of the CTS function instance Event Number Event channel Event block name Event Code Description © Arcteq Relays Ltd...
Page 243: Fuse Failure Vts (60)
Fundamental RMS measurement of voltage U 5 ms Positive sequence voltage 5 ms Negative sequence voltage 5 ms Zero sequence voltage 5 ms Fundamental angle of U voltage 5 ms Fundamental angle of U voltage 5 ms © Arcteq Relays Ltd...
Page 244 If the blocking signal is not activated when the pick-up element activates, a START signal is generated and the function proceeds to the time characteristics calculation. © Arcteq Relays Ltd...
Page 245 VTS function register content. This information is available in 12 last recorded events for all provided instances separately. Table. 5.6.2. - 179. Register content. Event Volt 1,2,3 Input A,B,C Trip time Used Date & Time System status status angle diff remaining code © Arcteq Relays Ltd...
Page 246: Disturbance Recorder (Dr)
U 8/16/32/64s/c 1(2) Line to neutral U or line to line voltage U 8/16/32/64s/c 2(3) Line to neutral U ,line to line voltage U , zero sequence voltage U or synchrocheck voltage 8/16/32/64s/c 3(1) © Arcteq Relays Ltd...
Page 247 Maximum amount of recordings possible to store in the memory of IED. 0…2 recordings Max length 0…1800 s 0.001 Maximum settable length of a single recording, recording Recordings How many recordings stored in the memory of IED. 0…2 in memory © Arcteq Relays Ltd...
Page 248 200ms is recorded before “I> TRIP” and 800ms is recorder after. 4. Sample of each recorder analog signal is taken 64 times in a cycle. With 50Hz system frequency it means that sample is taken every 312.5µs. Digital channels are tracked every 5 milliseconds. © Arcteq Relays Ltd...
Page 249 Though if needed it is also possible to con rm the length by using the following calculation. Please note that the following calculation assumes that DR doesn’t share the 64MB space with any other les in the FTP. © Arcteq Relays Ltd...
Page 250 Recordings are packed comtrade les. Zip- le includes *.cfg and *.dat. AQviewer is capable to open original packed zip les directly or comtrade les as they are as far as both *.cfg and *.dat are located in same directory. Figure. 5.6.3. - 181. Open stored recordings. © Arcteq Relays Ltd...
Page 251 -text appears when moving mouse cursor is on top of the icon. In this example line to neutral voltages UL1, Ul2 and UL3 are selected and moved to the right side. Con rm plotter by pressing OK –key. © Arcteq Relays Ltd...
Page 252 The DR function generates events from the status changes of the function. To main event buffer is possible to select status “On” or “Off” messages. Table. 5.6.3. - 182. Event codes of DR function. Event Number Event channel Event block name Event Code Description 4096 Recorder triggered On © Arcteq Relays Ltd...
Page 253: Measurement Recorder
Record le location can be changed by editing the “Path”- eld. File name can be changed from the “File Name”- eld. Hitting the red “Record”-button will start the recorder. Closing the measurement recorder-dialog will not stop the recording. To stop the recording, blue “Stop”-button must be pressed. © Arcteq Relays Ltd...
Page 254 Res.Curr.I01 TRMS Pri U1Volt Pri L2 Imp.React.Cap.E.kvarh Res.Curr.I02 TRMS Pri U2Volt Pri L2 Exp/Imp React.Cap.E.bal.Mvarh Sec.Pha.Curr.IL1 U3Volt Pri L2 Exp/Imp React.Cap.E.bal.kvarh Sec.Pha.Curr.IL2 U4Volt Pri L2 Exp.React.Ind.E.Mvarh Sec.Pha.Curr.IL3 U1Volt Pri TRMS L2 Exp.React.Ind.E.kvarh Sec.Res.Curr.I01 U2Volt Pri TRMS L2 Imp.React.Ind.E.Mvarh © Arcteq Relays Ltd...
Page 255 P-P Curr.I01 System Volt UL23 mag (kV) Exp/Imp React.Ind.E.bal.Mvarh P-P Curr.I02 System Volt UL31 mag Exp/Imp React.Ind.E.bal.kvarh Pha.angle IL1 System Volt UL31 mag (kV) Other measurements Pha.angle IL2 System Volt UL1 mag TM> Trip expect mode © Arcteq Relays Ltd...
Page 256 Pha.Curr.I”L2 L2 Cos(phi) L1 Char current Pha.Curr.I”L3 L3 Apparent Power (S) L2 Bias current Res.Curr.I”01 L3 Active Power (P) L2 Diff current Res.Curr.I”02 L3 Reactive Power (Q) L2 Char current Calc.I”0 L3 Tan(phi) L3 Bias current © Arcteq Relays Ltd...
Page 257: Circuit Breaker Wear-Monitor (Cbw)
CBW function is integrated into the controllable object function and can be enabled and set under object function. CBW function is independent function and initializes as separate independent instance which has own events and settings not related to the object it is linked © Arcteq Relays Ltd...
Page 258 Alarm 1 and Alarm 2 events. Operations left for each phase can be monitored also in the function. In the following gure the simpli ed function block diagram of the CBW function is presented. Figure. 5.6.5. - 186. Simpli ed function block diagram of the CBW function. © Arcteq Relays Ltd...
Page 259 0 … 200000 Pick-up threshold for remaining operations. When the remaining 100 op operations operation operations is below this setting Alarm 2 signal is activated. Setting example Setting example: Tavrida ISM/TEL-24-16 / 800 – 057 circuit breaker © Arcteq Relays Ltd...
Page 260 Value Current 1 (Inom) 0.80 kA Operation 1 (Inom) 30000 Op Current 2 (Imax) 16.00 kA Operations 2 (Imax) 100 Op Enable Alarm 1 1: Enabled Alarm 1 Set 1000 operations Enable Alarm 2 1: Enabled © Arcteq Relays Ltd...
Page 261: Fault Locator (21Fl) X → Km
Time stamp resolution is 1ms. Function provides also cumulative counter for fault locator triggering events. Measured input values Function block uses analog current and voltage measurements and calculated phase-to-phase loop impedances. © Arcteq Relays Ltd...
Page 262 From blocking of the function a HMI display event as well as time stamped blocking event with information of the startup voltage values and fault type is issued. © Arcteq Relays Ltd...
Page 263: Total Harmonic Distortion Monitor (Thd)
User has possibility to set also the alarming limits for each measured channels if required by the application. THD of the measured signals can be selected either amplitude- or power ratio THD. The difference is in the calculation formula: © Arcteq Relays Ltd...
Page 264 THD Start and Alarm act and BLOCKED events. In the following gure is presented the simpli ed function block diagram of the THD function. Figure. 5.6.7. - 188. Simpli ed function block diagram of the THD function. © Arcteq Relays Ltd...
Page 265 Pick-up setting for THD alarm element from the phase currents. The measured THD 0.10 … IsetPh 0.01% 20.00% value has to be over this setting on at least one of the measured phases to activate 200.00% the alarm signal. © Arcteq Relays Ltd...
Page 266 In the function is available 12 last registers where the triggering event of the function (THD start, alarm or blocked) is recorded with time stamp and process data values. Table. 5.6.7. - 198. Event codes of the THD function Event Number Event channel Event block name Event Code Description © Arcteq Relays Ltd...
Page 267: Measurement Value Recorder
Up to 8 magnitudes can be set to be recorded when function is triggered. Overcurrent fault type, voltage fault type and tripped stage can be recorded and reported forward to SCADA. © Arcteq Relays Ltd...
Page 268 Positive sequence resistance, reactance and impedance values and angles RseqAng, XseqAng, ZseqAng GL1, GL2, GL3, G0 BL1, BL2, BL3, B0 Conductances, susceptances and admittances YL1, YL2, YL3, Y0 YL1angle, YL2angle, YL3angle Admittance angles Y0angle Others Description © Arcteq Relays Ltd...
Page 269 VREC function generates events from function triggering. To main event buffer it is possible to select “On” or “Off” status messages. Table. 5.6.8. - 201. Event codes of the VREC function. Event Number Event channel Event block name Event Code Description © Arcteq Relays Ltd...
Page 270 AQ-F205 Instruction manual Version: 2.00 9984 VREC1 Recorder triggered On 9985 VREC1 Recorder triggered Off © Arcteq Relays Ltd...
Page 271: System Integration
Following Modbus function types are supported: Read Holding Register, 3 Write Single Register, 6 Write Multiple Registers, 16 Read/Write Multiple Registers, 23 Following data can be accessed using both Modbus TCP and Modbus RTU Device measurements Device I/O Commands Events Time © Arcteq Relays Ltd...
Page 272: Modbusio
Channel selection for the module. For each of the 8 channels of the IO module connected thermocouple can be selected. T.C. type [+-20mA,Type J, Type K, Type T, Type E, Type R, Type S] Thermocouple type setting. © Arcteq Relays Ltd...
Page 273: Iec 103
(slave). The IEC 103 protocol can be selected for the available serial ports of the device. A master or primary station can communicate with the Arcteq device and receive information by polling from the slave device. Disturbance recordings transfer is not supported.
Page 274: Spa Protocol
, harmonic 9 , harmonic 11 , harmonic 13 , harmonic h., 15 h., 17 h., 19 , harmonic 17 , harmonic 19 harmonic current. I1,I2,I0Z Positive sequence current, negative sequence current and zero sequence current © Arcteq Relays Ltd...
Page 275 System f. Used tracking frequency at the moment Ref f1 Reference frequency 1 Ref f2 Reference frequency 1 M thermal T Motor thermal temperature F thermal T Feeder thermal temperature T thermal T Transformer thermal temperature © Arcteq Relays Ltd...
Page 276 Scale current values to primary 1:Yes values 0:Currents; 1:Voltages; 2:Powers; Slot 1…8 Magnitude selection Selection of slots measured magnitude category 3:Imp.(ZRX).Adm. (YGB); 4:Others; Described in table Selection of the magnitude in the previously selected Slot 1…8 Magnitude (x) above category © Arcteq Relays Ltd...
Page 277: Applications And Connection Examples
AQ-F205 Instruction manual Version: 2.00 7. Applications and connection examples 7.1. Connections AQ-F205 Figure. 7.1. - 189. AQ-F205 connections. AQ-F205 has xed hardware with binary input and output cards always included. © Arcteq Relays Ltd...
Page 278: Example Feeder Application Connection
AQ-F205 Instruction manual Version: 2.00 Figure. 7.1. - 190. AQ-F205 application example with function block diagram. 7.2. Example feeder application connection Connection example application with three lines to neutral voltages and zero sequence voltage connected. Three phase currents and residual current are connected as well. Binary inputs are connected for breaker status indication.
Page 279: 3-Phase, 3-Wire Aron Input Connection
7.3. 3-phase, 3-wire ARON input connection This chapter presents a connection example of an application with protection current transformers for just two phases. Connection is suitable for both motor –and feeder applications. Figure. 7.3. - 192. 3-phase, 3-wire ARON input connection. © Arcteq Relays Ltd...
Page 280: Trip Circuit Supervision (95)
Basically, activation delay just a bit longer than the operation time of circuit breaker would be long enough. When CB failure protection is used it might be good to add the CBFP operation time to the digital input activation time (t ). See attached picture below. IEDrelease CBFP © Arcteq Relays Ltd...
Page 281 The main difference between non-lathed and latched control in trip circuit supervision is that when latched control is used it is not possible to monitor the trip circuit in open state due the digital input is shorted by the trip output of the IED. © Arcteq Relays Ltd...
Page 282 While the breaker is open the logic is blocked. Logical output can be used in output matrix or in SCADA as pleased. Figure. 7.4. - 197. TCS block scheme when non-latched trip output is not used. © Arcteq Relays Ltd...
Page 283: Construction And Installation
8. Construction and installation 8.1. Construction and installation Even though AQ-F205 is a member of modular and scalable AQ-2xx series it does not have optional modules and the construction and content of the relays hardware are xed. The relay includes CPU, IO, Power supply module, one ve channel current measurement module, one four channel voltage measurement module, one 8DI module and one 5DO module.
Page 284: Cpu, Io And Power Supply Module
16 & 18 are closed when unit is powered on and no system fault is present. X 19:20 Power supply in, Either 85 – 265 VAC/DC (model H) or 18 – 75 DC (model L), Positive side (+) to pin X1:20 © Arcteq Relays Ltd...
Page 285 In case the binary input is connected directly to binary output (T1…Tx) it takes additional third 5 millisecond round. When binary input is controlling internally binary output it takes 0…15 milliseconds in theory and 2…13 milliseconds in practice. This delay excludes the mechanical delay of the relay. © Arcteq Relays Ltd...
Page 286: Current Measurement Module
Quantization of the measurement signal is applied with 18 bit AD converters and the sample rate of the signal shall be 64 samples / power cycle in system frequency range of 6 Hz to 75 Hz. For further details refer to the “Technical data” section of this document. © Arcteq Relays Ltd...
Page 287: Voltage Measurement Module
Quantization of the measurement signal is applied with 18 bit AD converters and the sample rate of the signal shall be 64 samples / power cycle in system frequency range of 6 Hz to 75 Hz. For further details refer to the “Technical data” section of this document. © Arcteq Relays Ltd...
Page 288: Binary Input Module (Di8) (Option)
NO/NC (normally open/-closed) selection. Naming convention of the binary inputs provided by this module is presented in the chapter 6 Construction and installation. For technical details refer to the “Technical data” section of this document © Arcteq Relays Ltd...
Page 289 User settable normal state (normally open/normally closed) de nes if the digital input is considered activated when the digital input channel is energized. Figure. 8.5. - 203. Digital input state when energizing and de-energizing the digital input channels. © Arcteq Relays Ltd...
Page 290: Binary Output Module (Do5) (Option)
All output contacts are mechanical type. Rated voltage of the NO/CO outputs is 250VAC/DC. Naming convention of the binary outputs provided by this module is presented in the chapter Construction and installation. For further details refer to the “Technical data” section of this document. © Arcteq Relays Ltd...
Page 291: Installation Dimensioning
When installing to rack, the device will take ¼ of the rack width and total of four devices can be installed to same rack in parallel. Device panel installation and cut-outs are described below. Figure. 8.7. - 205. Dimensions of the IED. © Arcteq Relays Ltd...
Page 293 AQ-F205 Instruction manual Version: 2.00 Figure. 8.7. - 207. Panel cut-out and spacing of the IED. © Arcteq Relays Ltd...
Page 294: Technical Data
10xIn…150xIn < ±0.5% < ±0.2 ° (I > 0.05A) Angle measurement inaccuracy < ±1.0 ° (I ≤ 0.05A) Burden (50Hz/60Hz) <0.1VA Transient overreach <5% Fine residual current input (I02) Rated current In 0.2A (con gurable 0.2A…10A) © Arcteq Relays Ltd...
Page 295: Voltage Measurement
Input impedance 24.5-24.6 Ohm Burder (50Hz/60Hz) <0.02 VA 630V continuous Thermal withstand Note: Voltage measurement accuracy has been veri ed with 50Hz/60Hz. Amplitude difference is 0.2% -and angle difference 0.5 degrees higher at 16.67Hz and other frequencies. © Arcteq Relays Ltd...
Page 296: Frequency Measurement
Table. 9.1.2.2. - 216. Front panel local communication port Port Port media Copper Ethernet RJ-45 Number of ports 1pcs Port protocols PC-protocols, FTP, Telnet Features Data transfer rate 100 MB System integration Cannot be used for system protocols, only for local programming © Arcteq Relays Ltd...
Page 297: Cpu Binary Inputs
Scanning rate 5 ms Settings Pick-up delay Software settable: 0…1800s Polarity Software settable: Normally On / Normally Off Current drain 2 mA Terminal block connection Solid or stranded wire Maximum wire diameter: Phoenix Contact MSTB2,5-5,08 2.5mm © Arcteq Relays Ltd...
Page 298: Cpu Binary Outputs
Phoenix Contact MSTB2,5-5,08 2.5mm 9.1.3. Display Table. 9.1.3. - 222. HMI LCD display technical data Dimensions and resolution Number of dots / resolution 320 x 160 Size 84.78mm × 49.90mm Display Type of display Color Monochrome © Arcteq Relays Ltd...
Page 299: Functions
Instant reset time and start-up reset <50 ms Note! Release delay does not apply on phase speci c tripping. 9.2.1.2. Non-directional earth fault (50N/51N) I0> Table. 9.2.1.2. - 224. Non-directional earth-fault (50N/51N) technical data Input signals © Arcteq Relays Ltd...
Page 300: Directional Overcurrent (67) Idir
Table. 9.2.1.3. - 225. Directional overcurrent (67) technical data Input signals Phase current fundamental freq RMS Phase current TRMS Phase current peak-to-peak Input magnitudes P-P +U voltage fundamental frequency RMS P-E voltage fundamental frequency RMS Pick-up Characteristic direction Directional, Non-directional © Arcteq Relays Ltd...
Page 301: Directional Earth Fault(67N) Iodir
Measured residual current I02 (0.2 A) Calculated residual current I0Calc (5 A) Measured zero sequence voltage U0 Used voltage magnitude Calculated zero sequence voltage U0 Unearthed (Varmetric 90°) Characteristic direction Petersen coil GND (Wattmetric 180°) Grounded (Adjustable sector) © Arcteq Relays Ltd...
Page 302: Current Unbalance (46/46R/46L) I2
Minimum phase current (least 1 phase above) 0.01…2.00 x In, setting step 0.01 x In Inaccuracy ±1.0 %-unit or ±100 mA (0.10…4.0 x I -Starting I2pu -Starting I2/I1 ±1.0 %-unit or ±100 mA (0.10…4.0 x I Operating time © Arcteq Relays Ltd...
Page 303: Harmonic Overcurrent (50H/51H, 68) Ih
A IDMT Constant 0…250.0000 step 0.0001 B IDMT Constant 0…5.0000 step 0.0001 C IDMT Constant 0…250.0000 step 0.0001 Inaccuracy -IDMT operating time ±1.5 % or ±20 ms -IDMT minimum operating time; 20 ms ±20 ms Instant operation time © Arcteq Relays Ltd...
Page 304: Circuit Breaker Failure Protection (50Bf/52Bf) Cbfp
9.2.1.8. Restricted earth fault / Cable end differential (87N) Iod> Table. 9.2.1.8. - 230. Restricted earth fault / Cable end differential (87N) technical data Input signals Phase currents, I01, I02 fundamental frequency RMS Input magnitudes Calculated bias and residual differential currents Pick-up © Arcteq Relays Ltd...
Page 305: Overvoltage (59) U
<50 ms Reset Reset ratio 97 % of pick-up voltage setting Reset time setting 0.010 … 10.000 s, step 0.005 s Inaccuracy: Reset time ±1.0 % or ±45 ms Instant reset time and start-up reset <50 ms © Arcteq Relays Ltd...
Page 306: Undervoltage (27) U
LV block is not in use when set to 0 %. Undervoltage is on trip stage if LV block is disabled and IED is without voltage injection. After blocking condition, under voltage stage won’t trip unless voltage is higher than pick-up setting rst. © Arcteq Relays Ltd...
Page 307: Neutral Overvoltage (59N) U0
or ±30 mV -Voltage Low voltage block Pick-up setting 1.00…80.00 %Un, setting step 0.01 %Un Inaccuracy ±1.5 %U or ±30 mV -Voltage Operation time De nite time function operating time setting 0.00…1800.00 s, setting step 0.005 s © Arcteq Relays Ltd...
Page 308: Over-/Under Frequency (81O/81U) F
0.020 Hz Instant reset time and start-up reset (Im/Iset ratio +/- 50mHz) FIXED mode <110 ms (max step size 100mHz) (Im/Iset ratio +/- 50mHz) TRACKING mode <3 cycles or <70 ms (max step size 100mHz) Note! © Arcteq Relays Ltd...
Page 309: Rate-Of-Change-Of-Frequency (81R) Df/Dt
Table. 9.2.1.15. - 237. Line thermal overload (49L) technical data Inputs Input current magnitude Phase current TRMS max (31 harmonic) Settings Time constants τ Time constant value 0.0…500.00 min by step of 0.1 min Service factor (max overloading) 0.01…5.00 by step of 0.01 x In © Arcteq Relays Ltd...
Page 310: Over/Under/Reverse Power Protection (32/37) P>, P<, Prev
When low power block is set to zero it is not in use. Also power measurement below 1.00 kW is forced to zero (P< blocked). 9.2.1.17. Resistance temperature detector alarm (49RTD) T> Table. 9.2.1.17. - 239. Resistance temperature detector alarm (49RTD) technical data Inputs © Arcteq Relays Ltd...
Page 311: Control Functions
±0.5 % or ±10 ms Breaker control operation time External object control time <75ms Object control during Autoreclosing See Autoreclosing technical sheet 9.2.2.3. Autoreclosing function (79) 0 → 1 Table. 9.2.2.3. - 242. Autoreclosing function (79) technical data Input signals © Arcteq Relays Ltd...
Page 312: Cold Load Pick-Up (Clp)
±1.0 % or ±45 ms Instant operation time CLPU activation and release <45 ms (measured from trip contact) Note! One phase current IL1, IL2 or IL3 is enough to prolong blocking or to release blocking during overcurrent condition. © Arcteq Relays Ltd...
Page 313: Switch On To Fault (Sotf)
Note! Voltage is scaled to primary amplitude. Therefore different sized PT secondary are possible. Minimum voltage for direction and frequency solving is 20.0 %Un. U dead limit is not in use when set to 0 %Un. © Arcteq Relays Ltd...
Page 314: Monitoring Functions
External line/bus side pickup (optional) 0 → 1 Time delay for alarm De nite time function operating time setting 0.00…1800.00 s, setting step 0.005 s Inaccuracy -De nite Time (Um/Uset ratio > 1.05 / 0.95) ±1.0 % or ±35 ms © Arcteq Relays Ltd...
Page 315: Disturbance Recorder (Dr)
0.1xIn > I < 2 xIn ±0.2% of measured current, rest 0.5% - Operation counter ±0.5% of operations deducted 9.2.3.5. Total harmonic distortion (THD) Table. 9.2.3.5. - 250. Total harmonic distortion (THD) technical data Input signals © Arcteq Relays Ltd...
Page 316: Fault Locator (21Fl) X → Km
P-E voltage fundamental frequency RMS Phase current fundamental freq RMS / (back-up frequency) Pick-up Pick-up voltage setting 2.00…50.00 %Un, setting step 0.01 x %Un Pick-up current setting (optional) 0.01…50.00 x In, setting step 0.01 x In © Arcteq Relays Ltd...
Page 317: Tests And Environmental
= 150 kHz….80 MHz 10V EN 60255-26, IEC 61000-4-6 Table. 9.3. - 254. Voltage tests Dielectric voltage test EN 60255-27, IEC 60255-5, EN 60255-1 2 kV, 50Hz, 1min Impulse voltage test: EN 60255-27, IEC 60255-5 5 kV, 1.2/50us, 0.5J © Arcteq Relays Ltd...
Page 318 Device dimensions (W x H x D mm) Casing height 4U, width ¼ rack, depth 210 mm Device weight 1.5kg With package Package dimensions (W x H x D mm) 245(w) x 170(h) x 223(d) mm Weight © Arcteq Relays Ltd...
Page 319: Ordering Information
Description Note Manufacturer AQ-ACC-ADAM4016 ADAM-4016 RTD 6 ch RTD module with Modbus Requires external Advanced Co. Ltd. (Pt100/1000, Balco500, Ni) power module AQ-01A Light point sensor unit (8000 Lux threshold) Max. cable length 200m Arcteq Ltd. © Arcteq Relays Ltd...
Page 320: Contact And Reference Information
Wolf ntie 36 F 12 65200 Vaasa, Finland Contacts Phone: +358 10 3221 370 Fax: +358 10 3221 389 URL: url: www.arcteq. email sales: sales@arcteq. Technical support site: https://arcteq. /support-landing/ Technical support: +358 10 3221 388 (EET 8:00 – 16:00) © Arcteq Relays Ltd...

Arcteq AQ-F205 Instruction Manual

1 Manual Revision Notes

2 Abbreviations

3 General

4 IED User Interface

5 Functions

6 System Integration

7 Applications and Connection Examples

8 Construction and Installation

9 Technical Data

10 Ordering Information

11 Contact and Reference Information

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