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Application Guide

P12y/EN AP/D32

MiCOM P125/P126 & P127

Page 9/74

Forward
tripping zone

RCA

Iph

Uph-ph

Backward
tripping zone

Tripping zone is settable from:
±10˚ to ±170˚ in step of 1˚ with reference
to RCA (Torque angle)
RCA (Torque angle) is settable from
0˚ to 359˚ in step of 1˚

P0079ENa

This is achieved by means of the relay
characteristic angle (RCA) setting (also
referred to as torque angle). RCA
defines the angle by which the current
applied to the relay must be displaced
from the voltage applied to the relay to
obtain maximum relay sensitivity.

A programmable tripping zone with
reference to relay characteristic angle
(RCA) or torque angle is available.

U [V]

I [In]

0.1

0.2

0.3

0.4

0.5

1

1.5

Non measurable angle zone

P0080ENa

The calculation of the angle between
phase voltage and phase current
depends on the values for voltage and
current.

The close figure shows the calculation
zone.

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Summary of Contents for MiCOM P125

Page 1: ...MiCOM P125 P126 P127 Directional Non directional Relay Technical Guide P12Y EN T E32...

Page 2: ......

Page 3: ...SS B11 Getting Started P12y EN GS D32 Handling Installation and Case Dimensions P12y EN IN C22 User Guide P12y EN FT D32 Technical Data and Curve Characteristics P12y EN TD D32 Application Guide P12y...

Page 4: ...P12y EN T E32 Technical Guide Page 2 2 MiCOM P125 P126 P127 BLANK PAGE...

Page 5: ...Pxxxx EN SS B11 SAFETY SECTION...

Page 6: ......

Page 7: ...4 3 2 Labels 4 4 INSTALLING COMMISSIONING AND SERVICING 4 5 DECOMMISSIONING AND DISPOSAL 7 6 EQUIPMENT WHICH INCLUDES ELECTROMECHANICAL ELEMENTS 7 7 TECHNICAL SPECIFICATIONS FOR SAFETY 7 7 1 Protectiv...

Page 8: ...Pxxxx EN SS B11 Page 2 10 Safety Section BLANK PAGE...

Page 9: ...pment is in operation dangerous voltages will be present in certain parts of the equipment Failure to observe warning notices incorrect use or improper use may endanger personnel and equipment and cau...

Page 10: ...ndertaking installation commissioning or servicing work for this equipment should be aware of the correct working procedures to ensure safety The equipment documentation should be consulted before ins...

Page 11: ...ge and current rating of external wiring applicable to the application Equipment Use If the equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may...

Page 12: ...energised This is to avoid possible shock or damage hazards Hazardous live voltages may be accessible on the extender card Insertion and withdrawal of integral heavy current test plugs It is possible...

Page 13: ...removed before making any change to avoid the risk of electric shock Exposure of live parts Removal of the cover may expose hazardous live parts such as relay contacts these should not be touched befo...

Page 14: ...tibility Directive EMC 89 336 EEC amended by 93 68 EEC The following Product Specific Standard was used to establish conformity EN 50263 2000 Compliance demonstrated via the Technical Construction Fil...

Page 15: ...RICA CSA Canadian Standards Association UL Underwriters Laboratory of America UL Recognized to UL USA requirements UL Recognized to UL USA and CSA Canada requirements UL Listed to UL USA requirements...

Page 16: ...Pxxxx EN SS B11 Page 10 10 Safety Section BLANK PAGE...

Page 17: ...Getting Started P12y EN GS D32 MiCOM P125 P126 P127 GETTING STARTED...

Page 18: ......

Page 19: ...1 MiCOM P125 P126 P127 7 9 RELAY DESCRIPTION 8 9 1 Relay Overview 8 9 2 Front Panel Description 9 9 2 1 Relay Identification 10 9 2 2 Battery and Communication Port 11 9 3 Withdrawing Module from Case...

Page 20: ...Block for P125 38 14 2 Description Rear Terminal Block for P126 P127 39 15 LOCAL CONNECTION TO A PC 40 15 1 Configuration 40 16 REMOTE CONNECTION 40 17 WIRING DIAGRAMS FOR P125 P126 P127 43 17 1 P125...

Page 21: ...ges The electronic circuits are well protected by the metal case and the internal module should not be withdrawn unnecessarily When handling the module outside its case care should be taken to avoid c...

Page 22: ...ed circuit board Avoid touching the electronic components printed circuit tracks or connectors 3 Do not pass the module to another person without first ensuring you are both at the same electrostatic...

Page 23: ...ll lit to facilitate inspection Relays removed from their cases should not be left in dusty or damp situations This applies especially to such installation sites that are undergoing construction work...

Page 24: ...components within MiCOM are P range protection relays C range control products M range measurement products for accurate metering and monitoring S range versatile PC support and substation control pac...

Page 25: ...s and 8 LEDs to display the status of the MiCOM P125 P126 P127 A dedicated AREVA setting software package is available that allows the user to read initialise and change the relay parameter settings v...

Page 26: ...ght Depth Width Type P125 4U 177mm 230mm 20 TE Type P126 P127 4U 177mm 230mm 30 TE The hinged covers at the top and bottom of the relay are shown closed Extra physical protection for the front panel c...

Page 27: ...e front panel The LED labels are in English by default Trip LED Red LED L1 labelled Trip indicates when a trip command has been issued by the relay to the cut off element circuit breaker protection tr...

Page 28: ...selects the information he wishes to see associates with each LED from the menu element Logic OR Each LED illuminates when the associated information is valid The extinguishing of each LED is linked...

Page 29: ...APPLIED BETWEEN THE POSITIVE TERMINAL OF THE BATTERY AND THE RELEVANT CONTACT TO MAKE THE BATTERY OPERATIVE To MiCOM RS 232 Battery box MiCOM E1 Input for external supply 12Vcc 24Vcc P0252ENa FIGURE...

Page 30: ...rewdriver into a hole situated under the upper hinged cover above the LCD and turning the lock pin 90 to the left Then the screwdriver is inserted into a second hole situated under the lower hinged co...

Page 31: ...ase sequence overcurrent 46 o o Thermal overload 49 o o Undervoltage 27 o Overvoltage 59 o Residual overvoltage 59N o o o Auto reclose 4 shots with TOR 79 o o Circuit breaker failure 50BF o o Circuit...

Page 32: ...f 1 Forward tripping zone Torque Angle Reverse tripping zone P0066ENa The directional earth fault protection also provides a non sensitive area to avoid instability due to small dissymetries and unbal...

Page 33: ...or AC according to nominal supply rating Ua voltage power supply POSITIVE Vaux TO TERMINAL 33 NEGATIVE Vaux TO TERMINAL 34 DO NOT FORGET TO CONNECT THE EARTH REFERENCE TO TERMINAL 29 Turn on the auxi...

Page 34: ...the upper and lower hinged covers and remove the transparent cover over the front panel When the keypad is exposed it provides full access to the menu options of the relay The relevant information is...

Page 35: ...ess to enter the following character At the end press to validate the password If the password is correct the following message is displayed on the LCD PASSWORD OK As soon as the password has been ent...

Page 36: ...XXXXXX R Date N A XX XX XX XX XX XX R W 01 31 01 12 00 99 Time N A XX XX XX XX XX XX R W 00 23 00 59 00 59 CONFIGURATION General Options VT Connection N A N A 2Vpp Vr R W 3Vpn or 2Vpp Vr or 2Vpn Vr De...

Page 37: ...No Yes Yes No tI2 N A No No R W No Yes Yes No Thermal Trip N A No No R W No Yes Yes No I N A No No R W No Yes Yes No tI N A No No R W No Yes Yes No U N A N A No R W No Yes Yes No tU N A N A No R W No...

Page 38: ...s No Pe IeCos No No No R W No Yes Yes No tPe IeCos No No No R W No Yes Yes No Pe IeCos No No No R W No Yes Yes No tPe IeCos No No No R W No Yes Yes No I2 N A No No R W No Yes Yes No tI2 N A No No R W...

Page 39: ...o R W No Yes Yes No tI N A No No R W No Yes Yes No tIA N A No No R W No Yes Yes No tIB N A No No R W No Yes Yes No tIC N A No No R W No Yes Yes No Ie No No No R W No Yes Yes No tIe No No No R W No Yes...

Page 40: ...No R W No Yes Yes No Recl Blocked N A No No R W No Yes Yes No tAux1 N A No No R W No Yes Yes No tAux2 N A No No R W No Yes Yes No t SOTF N A No No R W No Yes Yes No Led 8 R W I N A No No R W No Yes Y...

Page 41: ...Yes No Input2 No No No R W No Yes Yes No Input3 No No No R W No Yes Yes No Input4 No No No R W No Yes Yes No Input5 N A No No R W No Yes Yes No Input6 N A No No R W No Yes Yes No Input7 N A No No R W...

Page 42: ...1 In Delay Type N A N A DMT R W DMT or IDMT IEC_STI IEC_SI IEC_VI IEC_EI IEC_LTI C02 C08 IEEE_MI IIEEE_VI IEEE_EI RI RECT curve tI N A N A 0s R W 0 s 150s 0 01s I TMS N A N A 1 R W 0 025 1 5 0 025 K N...

Page 43: ...N A R W No or Yes or DIR I N A 40 In N A R W 0 5 In 40 In 0 01 In Delay Type N A DMT N A R W DMT or IDMT IEC_STI IEC_SI IEC_VI IEC_EI IEC_LTI C02 C08 IEEE_MI IIEEE_VI IEEE_EI RI RECT curve tI N A 0 N...

Page 44: ...0 0 R W 0 359 1 Ie Trip zone 85 85 85 R W 10 170 1 57 130V Input voltage Cortec code P12 XAX X Ue 260V 260V 260V R W 1 V 260 V 0 1 V 220 480V Input voltage Cortec code P12 XBX X Ue 960V 960V 960V R W...

Page 45: ...y Current input from 0 01 to 8 Ien 57 130V Input voltage Cortec code P12 BAX X Pe 160 x K W 160 x K W 160 x K W R W 1 x K W 160 x K W 0 1 x K W Pe 160 x K W 160 x K W 160 x K W R W 1 x K W 160 x K W 0...

Page 46: ...C08 IEEE_MI IIEEE_VI IEEE_EI RI RECT curve tIeCos 0s 0s 0s R W 0 s 150s 0 01s IeCos TMS 1 1 1 R W 0 025 1 5 0 025 IeCos Reset Delay Type DMT DMT DMT R W DMT or IDMT IeCos RTMS 0 025 0 025 0 025 R W 0...

Page 47: ...80V Input voltage Cortec code P127 BX X U N A N A 720V R W 10 V 720 V 0 5 V tU N A N A 0 s R W 0 s 600 s 0 01 s U N A N A No R W No or AND or OR 57 130V Input voltage Cortec code P127 AX X U N A N A 2...

Page 48: ...A 0 01 s 0 01 s R W 0 01 s 300 s 0 01 s td2 N A 0 01 s 0 01 s R W 0 01 s 300 s 0 01 s td3 N A 0 01 s 0 01 s R W 0 01 s 600 s 0 01 s td4 N A 0 01 s 0 01 s R W 0 01 s 600 s 0 01 s Reclaim Time N A tR N...

Page 49: ...Yes No Trip SOTF N A No No R W No Yes Yes No Ctrl Trip N A No No R W No Yes Yes No Equation A N A No No R W No Yes Yes No Equation B N A No No R W No Yes Yes No Equation C N A No No R W No Yes Yes No...

Page 50: ...s Output Relays 65432 8765432 8765432 Trip 00000 0000000 0000000 R W 0 1 1 I N A 0000000 0000000 R W 0 1 1 tI N A 0000000 0000000 R W 0 1 1 I_R N A 0000000 0000000 R W 0 1 1 I N A 0000000 0000000 R W...

Page 51: ...rm N A 0000000 0000000 R W 0 1 1 52 Fail N A 0000000 0000000 R W 0 1 1 CB Fail N A 0000000 0000000 R W 0 1 1 CB Close N A 0000000 0000000 R W 0 1 1 tAux1 00000 0000000 0000000 R W 0 1 1 tAux2 00000 00...

Page 52: ...e None R W None Unlatch Blk Log 1 Blk Log 2 52 a 52 b Aux 1 Aux 2 Aux 3 Aux 4 CB FLT Reset Change set Log Sel 2 Log Sel 1 Cold L PU Strt Dist Block_79 Trip Circ Start t BF Maint M Man Close Local Inpu...

Page 53: ...n NB N A 0 0 R W 0 50000 1 Amps n N A No No R W No Yes Yes No Amps n N A 0 0 R W 0 Exp6 A 4000 Exp6 A 1 Exp6 A n N A 1 1 R W 1 2 1 tOpen Pulse 0 1 s 0 1 s 0 1 s R W 0 1 s 5 s 0 01 s tClose Pulse 0 1 s...

Page 54: ...1 1 Brkn Cond N A 0000 0000 R W 0 1 1 79 Trip N A 0000 0000 R W 0 1 1 tAux1 N A 0000 0000 R W 0 1 1 tAux2 N A 0000 0000 R W 0 1 1 tAux3 N A 0000 0000 R W 0 1 1 tAux4 N A 0000 0000 R W 0 1 1 AND LOGIC...

Page 55: ...p Time Peak Value N A Time Window N A 5 mn 5 mn R W 5 mn 10 mn 15mn 30mn 60mn Please note The Pe thresholds are displayed in the format x Ien W The threshold value is in Watt W secondary If Ien 1A the...

Page 56: ...9 30 Terminal RS485 Common output 5 3 4 Output 1 NC RS485 terminal 31 32 RS485 Output 6 5 6 Output1 NO Vaux terminal 33 34 Vaux terminal Common output 6 7 8 Common output 2 Relay failed WD 35 36 Commo...

Page 57: ...C Relay healthy WD 37 38 67 68 Output 7 11 12 Output 2 NO 39 40 Voltage input VA 69 70 Voltage input VA Common output 8 13 14 Output 3 Current input IA 5A 41 42 Current input IA 5A Voltage input VB 71...

Page 58: ...etween a PC and the relay a serial cable with metallic shield should be used The wiring of the RS232 cable must be as shown in the following drawing RS232 PC PORT 9 pin male connector MiCOM P125 6 7 e...

Page 59: ...of each product with screw 2 The pin number 29 of each terminal block must be connected to the case earth connection of each product with screw 3 The communication cable shield must be connected to th...

Page 60: ...case earth connection of each product with screw 2 The communication cable shield must be connected to the pin number 29 of each product 3 The pin number 29 has to be connected to the case earth conne...

Page 61: ...33 34 Auxiliary Voltage MiCOM P125 39 40 5A 48 47 29 30 Case earth connection Communication cable shield Terminal RS485 31 32 RS485 Communication Port _ Watch Dog Programmable input L1 Programmable i...

Page 62: ...e input L5 Programmable input L6 Programmable input L7 49 51 50 A B C 1A 1A 1A 52 53 54 WD RL1 RL2 RL RL4 RL6 RL5 RL7 RL8 35 37 36 4 6 2 10 12 8 14 16 18 20 3 1 7 5 9 11 13 15 22 24 26 28 17 19 21 23...

Page 63: ...ction Communication cable shield Terminal RS485 31 32 RS485 Communication _ MiCOM P127 TCS A B C Phase rotation Programmable input L1 Programmable input L2 Programmable input L3 Programmable input L4...

Page 64: ...P12y EN GS D32 Getting Started Page 46 48 MiCOM P125 P126 P127 18 CASE DIMENSIONS 18 1 P126 P127 Case Dimension P0077ENa 18 2 P125 Case Dimension P0078ENa...

Page 65: ...umbers are documented under the upper hinged cover on the front of the relay For more precise information refer to the section Relay Identification in this chapter PLEASE GIVE THE FOLLOWING DATA WHEN...

Page 66: ...P12y EN GS D32 Getting Started Page 48 48 MiCOM P125 P126 P127 BLANK PAGE...

Page 67: ...Handling Installation and Case Dimensions P12y EN IN C22 MiCOM P125 P126 P127 HANDLING INSTALLATION AND CASE DIMENSIONS...

Page 68: ......

Page 69: ...M P125 P126 P127 Page 1 10 CONTENT 1 GENERAL CONSIDERATIONS 3 1 1 Receipt of relays 3 1 2 Electrostatic discharge ESD 3 2 HANDLING OF ELECTRONIC EQUIPMENT 4 3 RELAY MOUNTING 5 4 UNPACKING 6 5 STORAGE...

Page 70: ...P12y EN IN C22 Handling Installation and Case Dimensions Page 2 10 MiCOM P125 P126 P127 BLANK PAGE...

Page 71: ...sensitive to electrostatic discharges The electronic circuits are well protected by the metal case and the internal module should not be withdrawn unnecessarily When handling the module outside its ca...

Page 72: ...y its front plate frame or edges of the printed circuit board Avoid touching the electronic components printed circuit track or connectors 3 Do not pass the module to another person without first ensu...

Page 73: ...el rack assembly If an MMLG test block is to be included it should be positioned at the right hand side of the assembly viewed from the front Modules should remain protected by their metal case during...

Page 74: ...Relays must only be handled by skilled persons The installation should be clean dry and reasonably free from dust and excessive vibration The site should be well lit to facilitate inspection Relays t...

Page 75: ...the packing they should be retained The action of the de humidifier crystals will be impaired if the bag has been exposed to ambient conditions and may be restored by gently heating the bag for about...

Page 76: ...P12y EN IN C22 Handling Installation and Case Dimensions Page 8 10 MiCOM P125 P126 P127 6 CASE DIMENSIONS MiCOM P125 P126 and P127 relays are available in a 4U metal case for panel or flush mounting...

Page 77: ...Handling Installation and Case Dimensions P12y EN IN C22 MiCOM P125 P126 P127 Page 9 10 6 1 MiCOM P126 P127 P0077ENb 6 2 MiCOM P125 P0078ENb...

Page 78: ...P12y EN IN C22 Handling Installation and Case Dimensions Page 10 10 MiCOM P125 P126 P127 BLANK PAGE...

Page 79: ...User Guide P12y EN FT D32 MiCOM P125 P126 P127 USER GUIDE...

Page 80: ......

Page 81: ...5 4 2 4 Example Setting LED 5 for P126 18 4 2 5 Submenu Logic Inputs Choice Active High Low P125 21 4 2 6 Submenu Logic Inputs Choice Active High Low P126 P127 21 4 2 7 Submenu Output Relay 1 in Fail...

Page 82: ...UTORECLOSE P126 P127 54 4 7 Menu AUTOMAT CTRL 56 4 7 1 Submenu Trip Commands 56 4 7 2 Submenu Latch Relays 59 4 7 3 Submenu Blocking Logic 60 4 7 4 Submenu Logic Select 62 4 7 5 Submenu Outputs Relays...

Page 83: ...ith the keys it is possible to move in the direction indicated to the various levels of the menus The key validates the settings modification The two keys and are dedicated to acknowledging clearing a...

Page 84: ...menu If no key is pressed inside of 5 minutes the password is deactivated A new password request is associated with any subsequent parameter modification 2 3 Changing the Password To change an active...

Page 85: ...ftware or hardware fault of the MiCOM relay generates a hardware software alarm that is stored in memory as a Hardware Alarm If several hardware alarms are acquired they are all stored in their order...

Page 86: ...G ERROR alarm is still displayed please contact AREVA After Sales Services for advice and assistance Possible software alarm messages are I instantaneous 1st threshold directional non directional over...

Page 87: ...nt tI2 3rd trip threshold negative sequence current Brkn Cond broken conductor signal I2 I1 element threshold exceeded for longer than tBC tBC is settable in the AUTOMAT CTRL Broken Conductor menu U 1...

Page 88: ...red before expiry of the reclaim time Recloser Blocked re close blocking signal Generated by external breaker failure signal ex SF6 low signal provided via logic input assigned to the CB Fail function...

Page 89: ...On the MiCOM P125 relays rear terminals there is one current input rated 1A and one current input rated 5A available and one voltage input On the MiCOM P126 relay rear terminals there are four curren...

Page 90: ...P126 P127 relays have a standard RS485 port available The user can choose by ordering the communication protocol ModBus RTU IEC 60870 5 103 Courier when available or DNP3 when available Using the com...

Page 91: ...AMETERS To gain access to the OP PARAMETERS menu from the default display press OP PARAMETERS Heading of OP PARAMETERS menu To gain access to the menu content press Password Entry of the password to b...

Page 92: ...lays the status of the logic Inputs The logic inputs are numbered from 1 to 4 for P125 and 1 to 7 for P126 and P127 reading from the right When the indicated status is 0 the logic input is inactive wh...

Page 93: ...e The polarisation of the digital inputs by voltage present or lacking The possibility to have the trip relay normally ON or OFF The choice to enable alarms functionality as well as battery alarm self...

Page 94: ...sfo Ratio submenu press and until the submenu is reached Transfo Ratio Heading of Transfo Ratio submenu To navigate within submenu points press To modify setting press Use to scroll and set available...

Page 95: ...d is reached To reach the LED configuration submenu press for Led 5 Press to reach Led 6 again to reach Led 7 and again to reach Led 8 The following table lists the protection functions that can be as...

Page 96: ...tric tPe IeCos X X X 2nd trip threshold earth fault overpower IeCos wattmetric Negative phase sequence overcurrent protection TEXT P125 P126 P127 Information I2 X X 1st alarm threshold negative sequen...

Page 97: ...e status of logic input no 1 Input2 X X X Copy of the status of logic input no 2 Input3 X X X Copy of the status of logic input no 3 Input4 X X X Copy of the status of logic input no 4 Input5 X X Copy...

Page 98: ...up when Ie threshold is exceeded Setting choice No No operation when Ie threshold is exceeded Led 5 tIe No Setting choice Yes LED 5 lights up when tIe delay time has elapsed Setting choice No No oper...

Page 99: ...es LED 5 lights up when Brkn Cond is detected Setting choice No No operation when Brkn Cond is detected Led 5 Therm Trip No Setting choice Yes LED 5 lights up when Thermal Trip occurs Setting choice N...

Page 100: ...ogic input 7 Setting choice No No operation with signal present at logic input 7 Led 5 Recloser Run No Setting choice Yes LED 5 lights up when Recloser Run cycle is active Setting choice No No operati...

Page 101: ...nfirm the setting Start Stop tAUX3 By Input LEVEL To modify press and using keys to select if the control of the timer is on the change of the LEVEL of the relevant input or on the EDGE of the relevan...

Page 102: ...em for rising edge or high level depends of the application of the digital inputs Example a digital input configured blocking logic will operate on level on the other hand a digital input configured C...

Page 103: ...tion Group P125 P126 P127 CONFIGURATION Heading of CONFIGURATION menu To gain access to the Group Select menu press and until the submenu is reached Group Select Heading Group Select submenu To gain a...

Page 104: ...RELAYS MAINTENANCE sub menu To gain access to the sub menu content press Rel Maintenance Mode Yes Displays the MAINTENANCE MODE of the MiCOM relay If the user chooses Yes the protection and automation...

Page 105: ...he three voltage phases is used to be compared to the Ue The earth Overvoltage Protection function threshold This voltage at C input is considered as Ur and it is displayed in the measurement menu as...

Page 106: ...the measurements menu for the P125 P126 P127 relays 4 4 4 Menu MEASUREMENTS for P125 MEASUREMENTS Heading of MEASUREMENTS menu To gain access to the submenu contents press Frequency 50 00 Hz Displays...

Page 107: ...0 00 A Displays the positive sequence component I2 0 00 A Displays the negative sequence component RATIO I2 I1 0 Displays the ratio of I2 I1 This derived measurement is used by the Broken Conductor de...

Page 108: ...clear the rolling average values of the 3 currents ROLLING AVERAGE IA Rms 600 00 A Display the IA average value demand The value is the true RMS average value on a number of subperiod set in Record m...

Page 109: ...ntal value of the line voltage UBC vector calculus UCA 100 00 V Displays the calculated fondamental value of the line voltage UCA vector calculus UN 0 00 V Displays the calculated neutral voltage valu...

Page 110: ...ys the calculated fondamental value of the line voltage UAB vector calculus UBC 100 00 V Displays the calculated fondamental value of the line voltage UBC vector calculus UCA 100 00 V Displays the cal...

Page 111: ...d value displayed is 9999MW If the measured value is above 9999MW this display remains on the LCD Q 0 10 kVAR Displays the positive negative reactive power only the negative sign is shown The maximum...

Page 112: ...s the parity in the ModBus data frame Select parity Even Odd or None Data Bits 8 Displays the number of data bits in the ModBus data frame Select 7 or 8 bit data frame Stop Bits 1 Displays the number...

Page 113: ...ble for the MiCOM P125 P126 P127 relays By opening the PROTECTION menu the user can program the parameters of various protection functions and settings thresholds time delay logic associated with each...

Page 114: ...ection of the first alarm threshold function for phase OC I Setting choice No Yes DIR If the user selects DIR the following window is shown If the user selects No the next window will show the thresho...

Page 115: ...ser selects IEC curve the following menu is displayed TMS 1 000 Displays TMS value for the curve The setting range is from 0 025 o 1 5 in steps of 0 025 tReset 0 10 s Displays setting value for the re...

Page 116: ...ed with the IDMT reset time choice The setting range is from 0 025 to 3 200 in steps of 0 025 I Interlock Yes Interlock of first threshold by the second and third thresholds but only if first threshol...

Page 117: ...d menu I 4 6 1 8 Threshold Menu I I Yes Selection of the third threshold function for phase OC I Setting choice No Yes PEAK DIR If the user selects Yes the following window is shown and I threshold op...

Page 118: ...e alarm threshold Three earth fault current ranges are available from 0 002 to 1 Ien in steps of 0 001 Ien Cortec code C from 0 01 to 8 Ien in steps of 0 005 Ien Cortec code B from 0 1 to 25 Ien in st...

Page 119: ...election of K value for the RI curve The setting range is from 0 100 to 10 in steps of 0 005 tReset 0 10 s Displays setting value for the reset time The setting range is from 0 to 100 s in steps of 10...

Page 120: ...me curve IEC XX CO2 CO8 IEEE XX inverse time delay curve If the user selects IEEE ANSI curve the following menu is displayed TMS 1 000 Displays TMS value for the curve The setting range is from 0 025...

Page 121: ...arth fault current Ie Setting choice No Yes DIR If the user selects DIR the following window is shown If the user selects Yes the non directional choice window is shown If the user selects No the next...

Page 122: ...of the third threshold function for earth fault current Ie Setting choice No Yes DIR If the user selects DIR the following window is shown If the user selects Yes the non directional choice window is...

Page 123: ...ype Setting choices are DMT definite time RI for the electromechanical inverse time curve IEC XX CO2 CO8 IEEE XX inverse time delay curve and RECT curve If the user selects DMT the following menu is d...

Page 124: ...5 in steps of 0 025 tReset 0 10 s Displays setting value for the reset time The setting range is from 0 to 100 s in steps of 10ms I Interlock Yes Interlock of first threshold by the second and third t...

Page 125: ...selects Yes the following window is shown If the user selects No the next window will show the threshold menu I I 10 00 In Displays setting value of the alarm threshold The threshold setting range is...

Page 126: ...0V The setting range is from 0 2 to 20 x Ien W in steps of 0 02 x Ien W Input voltage range 220 480V The setting range is from 1 to 80 x Ien W in steps of 0 1 x Ien W The setting range for IeCos is fr...

Page 127: ...is from 0 025 to 1 5 in steps of 0 025 tReset 0 04 s Displays setting value for the reset time The setting range is from 0 to 100 s in steps of 10ms By pushing the next window will display the Pe 4 6...

Page 128: ...he submenu 32N Earth Wattmetric Pe 20 x 1 W Displays setting values for the alarm threshold Pe High sensitivity current 0 001 to 1 In Input voltage range 57 130V The setting range is from 0 2 to 20 x...

Page 129: ...the alarm threshold The threshold setting range is from 0 1to 25 In in steps of 0 01 In Delay Type DMT Displays threshold delay time type Setting choices are DMT for definite delay time IDMT for Inve...

Page 130: ...finite delay time curves tReset 0 00 s Displays setting value for the reset time The setting range is from 0 to 100 s in steps of 10 ms By pushing the next window will display the I2 Reset Delay Type...

Page 131: ...to confirm choice Therm OL Yes Selection of the thermal overload alarm function Setting choice No Yes If the user selects Yes the following window is shown If the user selects No no new window will b...

Page 132: ...n menu To gain access to menu press and until the submenu is reached 59 Phase Over Voltage Heading of 59 submenu To navigate within submenu points press To modify setting press Use to scroll and set a...

Page 133: ...in steps of 10ms U Yes Selection of the second alarm threshold function for phase undervoltage U Setting choice No Yes If the user selects Yes the following window is shown If the user selects No next...

Page 134: ...ose Setting choice No Yes If the user selects Yes the following window is shown If the user selects No next window will show the submenu Ext Block Ext CB Fail Time 1 00 s Displays the external CB fail...

Page 135: ...closer definitive trip 1 trip on tI pick up followed by reclosing cycle 2 no trip on tI pick up CYCLES 4321 tIe 1101 0 no action on autorecloser definitive trip 1 trip on tIe pick up followed by reclo...

Page 136: ...is submenu makes it possible to assign some or all the selected thresholds to the trip logic output RL1 4 7 1 1 Submenu Trip Commands for P125 AUTOMAT CTRL Heading of AUTOMAT CTRL menu To gain access...

Page 137: ...hreshold to output relay RL1 Setting choice Yes No Trip tI No Assigning the third three phase OC trip threshold to output relay RL1 Setting choice Yes No Trip tIe No Assigning the first earth fault ov...

Page 138: ...to the trip output RL1 Setting choice Yes No Ctrl Trip No Assigning the control by remote to the trip output RL1 Setting choice Yes No EQUATION A No Assigning the Boolean AND logic equation A result t...

Page 139: ...will be active the relay will remain active if the relevant command will reset The active latched output relays can be reset by a logic input assigned to this function Further the active latched outpu...

Page 140: ...l logic state 1 of logic input Blk Log Setting choice Yes No Block tIe No Enables disables Blocking Logic of the second trip threshold for earth overcurrent from locking on the level logic state 1 of...

Page 141: ...1 of logic input Blk Log Setting choice Yes No Block1 tI2 No Enables disables Blocking Logic 1 of the third trip threshold for Negative Sequence overcurrent from locking on the level logic state 1 of...

Page 142: ...confirm choice Sel1 tI No Enables disables Logic Select 1 of the second trip threshold for phase overcurrent tI Setting choice Yes No Sel1 tI No Enables disables Logic Select 1 of the third trip thres...

Page 143: ...ut relays i e to output 3 RL3 Setting choice 1 assigns the output relay 0 no assignment Ie_R 65432 00010 Assigning second trip threshold for directional earth fault overcurrent from the inverse trip z...

Page 144: ...tput Relays submenu press and until the submenu is reached Output Relays Heading of Output Relays submenu To navigate within submenu points press To modify setting press Use to scroll and set availabl...

Page 145: ...arth fault overcurrent tIe to other output relays i e to output 3 RL3 Setting choice 1 assigns the output relay 0 no assignment Ie_R 8765432 0000010 Assigning first trip threshold for directional eart...

Page 146: ...e to output 3 7 RL3 RL7 Setting choice 1 assigns the output relay 0 no assignment tI2 8765432 0100010 Assigning second trip threshold for negative sequence overcurrent I2 to the output relays i e to...

Page 147: ...0 no assignment tAau2 8765432 1100010 Assigning delayed auxiliary input Aux 2 to the output relays i e to output 3 7 8 RL3 RL7 RL8 Setting choice 1 assigns the output relay 0 no assignment tAUX3 87654...

Page 148: ...8765432 0000010 Assigning first trip threshold for overvoltage tU to the output relays i e to output 3 RL3 Setting choice 1 assigns the output relay 0 no assignment U 8765432 0100010 Assigning second...

Page 149: ...put Aux1 X X X Aux 2 Assigning external information to input Aux2 X X X Aux 3 Assigning external information to input Aux3 X X X Aux 4 Assigning external information to input Aux4 X X X CB FLT Externa...

Page 150: ...igning label Log Sel 1 to logic input 5 To modify see above windows Input 6 Block_79 Assigning label Block_79 to logic input 6 To modify see above windows Input 7 Cold L PU Assigning label Cold L PU t...

Page 151: ...ciated settings AUTOMAT CTRL Heading of AUTOMAT CTRL menu To gain access to the Cold Load Pick Up submenu press and until the submenu is reached Cold Load PU Heading of Cold Load PU submenu To navigat...

Page 152: ...eps of 100ms 4 7 10 Submenu Circuit Breaker Fail P126 P127 With the CB Fail submenu circuit breaker failure can be detected and associated parameters can be set This protection feature is only availab...

Page 153: ...e S vision CB Open Time 0 05 s Displays monitoring time for CB open operations Setting range from 0 05 to 1 0 s in steps of 10 ms CB Close S vision No Selection of the time monitoring function of CB c...

Page 154: ...r setting tSotf for Sotf function The setting range for tSotf is from 0 to 500 ms in steps of 10 ms I No Selection if the Sotf function is triggered from I Setting choice Yes No I No Selection if the...

Page 155: ...rrent tIe to one or more of the logic equations A B C and D Setting choice 1 assigns the logic equation 0 no assignment Ie DCBA 0000 Assigning third alarm threshold for earth fault overcurrent Ie to o...

Page 156: ...no assignment tI2 DCBA 0000 Assigning third trip threshold for negative sequence overcurrent tI2 to one or more of the equations A B C and D Setting choice 1 assigns the logic equation 0 no assignmen...

Page 157: ...B C and D Setting choice 1 assigns the logic equation 0 no assignment tAux1 DCBA 0000 Assigning delayed auxiliary input Aux 1 to one or more of the equations A B C and D Setting choice 1 assigns the l...

Page 158: ...ssigning second trip threshold for overvoltage tU to one or more of the equations A B C and D Setting choice 1 assigns the logic equation 0 no assignment U DCBA 0000 Assigning first alarm threshold fo...

Page 159: ...steps of 10ms EQU B Toperat 600 00 s Displays setting value of operating delay time Toperat for logic equation B Setting range is from 0 to 600s in steps of 10ms EQU B Treset 600 00 s Displays settin...

Page 160: ...Displays the circuit breaker opening time CB Closing Time 0 05 s Displays the circuit breaker closing time CB Operations RST C 0 Displays the number of opening commands executed by the circuit breake...

Page 161: ...12th 2001 Active Set Group 1 Displays the active setting group 1 or 2 Faulted Phase PHASE A Displays the phase where a fault occurred for the chosen fault record NONE PHASE A B C EARTH Threshold Displ...

Page 162: ...e cannot be measured 4 8 1 2 INSTANTANEOUS sub menu available in the P126 P127 The instantaneous sub menu makes possible to read the various parameters for each of the last five starting information N...

Page 163: ...submenu makes it possible to set parameters associated to this function Peak and average values displayed in the Measurements menu RECORD Heading of RECORD menu Time Peak Value Heading of Time Peak Va...

Page 164: ...odel The relays have programmable opto isolated logic inputs which may be assigned to any available label or function Logic inputs for each relay model Model P125 P126 P127 Logic outputs 4 7 7 The vol...

Page 165: ...5 5 2 RS232 Front Communication Port MiCOM P125 P126 P127 relays provide the user with a RS232 communication port on the front panel This link is dedicated to MiCOM setting software The cable between...

Page 166: ...P12y EN FT D32 User Guide Page 86 86 MiCOM P125 P126 P127 BLANK PAGE...

Page 167: ...Technical Data P12y EN TD D32 MiCOM P125 P126 P127 TECHNICAL DATA AND CHARACTERISTIC CURVES...

Page 168: ......

Page 169: ...nt P127 9 8 1 1 Synchronous Polarisation 9 8 1 2 Protection Setting Ranges P127 9 8 2 50 51 Phase Overcurrent Protection P126 10 8 2 1 Protection Setting Ranges P126 10 8 3 67N 50N 51N Dir Non Dir Ear...

Page 170: ...4 Circuit Breaker Failure P126 P127 21 9 4 1 CB Fail Setting Ranges 21 9 5 Trip Circuit Supervision P126 P127 22 9 5 1 Trip Circuit Supervision Setting Ranges 22 9 6 Circuit Breaker Control and Monito...

Page 171: ...AC Max 5W DC or 12VA AC Burden P126 Stand by 3W DC or 8VA AC Max 6W DC or 14VA AC Burden P127 Stand by 3W DC or 8VA AC Max 6W DC or 14VA AC 1 2 Frequency Frequency protection functions From 45 to 65Hz...

Page 172: ...th a DC voltage excepted the M auxiliary voltage range which acccepts both DC and AC voltage as logic input control voltage Logic input electrical functionality Ordering Code Cortec Relay ausiliary po...

Page 173: ...me 7ms Durability Loaded contact 10000 operation minimum Unloaded contact 100000 operation minimum 2 HIGH VOLTAGE WITHSTAND Dielectric withstand IEC 60 255 5 2 kV common mode 1 kV differential mode Im...

Page 174: ...eration 25 C to 55 C Humidity IEC 600 68 2 3 56 days at 93 RH and 40 C Enclosure protection IEC 60 529 IP 52 IK 07 Sinusoidal Vibrations IEC 60 255 21 1 Response and endurance class 2 Shocks IEC 60 25...

Page 175: ...uracy IDMT 1 1Pes accuracy 0 95 Pes accuracy 1 05 Pes accuracy 2 30 50ms 5 30 50ms Wattmetric earth fault elements Pe Pe 220 to 480V 1 to 80W 4 to 640W 40 to 3200W 4 error on cos DT Pes accuracy IDMT...

Page 176: ...0 40ms Derived residual overvoltage Ue Ue Ue Ue 220 to 480V 4 to 960V 5 to 960V 2 or 1V DT Urs 2 0 95 Urs 2 2 20 40ms 6 DEVIATION OF AUTOMATION FUNCTIONS TIMERS Autoreclose timers tDs tR tI 2 10 30ms...

Page 177: ...ve the maximum setting recommended should be 2In 8 1 2 Protection Setting Ranges P127 Setting Range 67 Phase OC Min Max Step I No or Yes or DIR I 0 1 In 25 In 0 01 In Delay type DT or IDMT IEC_STI IEC...

Page 178: ...126 Setting Range 51 Phase OC Min Max Step I No or Yes I 0 1 In 25 In 0 01 In Delay type DT or IDMT IEC_STI IEC_SI IEC_VI IEC_EI IEC_LTI C02 C08 IEEE_MI IIEEE_VI IEEE_EI RI RECT curve tI 0 s 150 s 0 0...

Page 179: ...ep High sensitivity current set Cortec code P12 C X X Ie 0 002 Ien 1 Ien 0 001 Ien Ie 0 002 Ien 1 Ien 0 001 Ien Ie 0 002 Ien 1 Ien 0 001 Ien Med sensitivity current set Cortec code P12 B X X Ie 0 01 I...

Page 180: ...0 01 s Input residual voltage with range from 57 to 130V Ue 1 V 260 V 0 1 V Input residual voltage with range from 220 to 480V Ue 4 V 960 V 0 5 V Ie No or Yes or DIR or Peak tIe 0 s 150 s 0 01 s Ie To...

Page 181: ...THE THREE PHASE TO NEUTRAL VOLTAGES 3VPN IN THIS CASE THE Ue IS CALCULATED AS UC UB UA x 3 1 Ue THE SETTING OF THE Ue THRESHOLDS MUST TAKE THE ABOVE FORMULA IN ACCOUNT 8 4 Earth Wattmetric Protection...

Page 182: ...ltage Cortec code P12 BAX X Pe 1 x k W 160 x k W 0 1 x k W Pe 1 x k W 160 x k W 0 1 x k W 220 480V Input voltage Cortec code P12 BBX X Pe 4 x k W 640 x k W 0 5 x k W Pe 4 x k W 640 x k W 0 5 x k W Low...

Page 183: ...IEC_STI IEC_SI IEC_VI IEC_EI IEC_LTI C02 C08 IEEE_MI IIEEE_VI IEEE_EI RI RECT curve tIeCos 0 s 150 s 0 01 s IeCos TMS 0 025 1 5 0 025 IeCos Reset Delay Type DT or IDMT IeCos RTMS 0 025 1 5 0 025 IeCo...

Page 184: ...al only NOTE When I2 is associated to an IDMT curve the maximum setting recommended should be 2In 8 7 1 Protection Setting Ranges Setting ranges 46 Neg Seq OC Min Max Step I2 No or Yes I2 0 1 In 25 In...

Page 185: ...ltage Protection P127 Phase or phase to phase voltage Fundamental only Thresholds selection mode AND or OR 8 9 1 Protection Setting Ranges P127 Setting ranges 27 Phase Undervoltage Min Max Step 57 130...

Page 186: ...ax Step 57 130V Input voltage Cortec code P127 AX X U No or AND or OR U 2 V 260 V 0 1 V tU 0 s 260 s 0 01 s U No or AND or OR U 2 V 260 V 0 1 V tU 0 s 600 s 0 01 s 220 480V Input voltage Cortec code P...

Page 187: ...THE Ve INPUT CAN BE SET DIRECTLY FROM A VT I E FROM A DELTA VT OR CAN BE DERIVED FROM THE MEASUREMENT OF THE THREE PHASE TO NEUTRAL VOLTAGES 3VPN IN THIS CASE THE Ue IS CALCULATED AS UC UB UA x 3 1 Ue...

Page 188: ...1 1 1 1 0 or 1 or 2 tI 1 1 1 1 0 or 1 or 2 tIe 1 1 1 1 0 or 1 or 2 tIe 1 1 1 1 0 or 1 or 2 tIe 1 1 1 1 0 or 1 or 2 tPe Iecos 1 1 1 1 0 or 1 or 2 tPe Iecos 1 1 1 1 0 or 1 or 2 tAux1 1 1 1 1 0 or 1 or 2...

Page 189: ...s 0 01 s tAux2 0 200 s 0 01 s tAux3 0 200 s 0 01 s tAux4 0 200 s 0 01 s 9 3 Broken Conductor Detection P126 P127 Principle used I2 I1 Functionality available for IA or IB or IC 10 In 9 3 1 Broken Con...

Page 190: ...Min Max Step CB Open S vision Yes or No CB Open time 0 05 s 1 s 0 01 s CB Close S vision Yes or No CB Close time 0 05 s 1 s 0 01 s CB Open Alarm Yes or No CB Open NB 0 50000 1 Amps n Yes or No Amps n...

Page 191: ...uation a setting value 0 shows no assignment of a logic output to the equation 9 8 1 Timer Setting Ranges Setting range AND logic equat T delay Min Max Step EQU A Toperat 0 s 600 s 0 01 s EQU A Treset...

Page 192: ...order Capacity 5 starting informations instantaneous Time tag 1 millisecond Triggers Any selected protection alarm and threshold Data date hour origin any protection alarm length duration of the insta...

Page 193: ...Data Rate Protocol RS485 Rear port Screened twister pair Screws or snap on 300 to 38400 baud programmable ModBus RTU Courier IEC60870 5 103 DNP3 RS232 Front port Screened twister pair Sub D 9 pin fem...

Page 194: ...stics available The mathematical formula applicable to the first ten curves is L I I K T t S 1 Where t Operation time K Factor see table I Value of measured current Is Value of the programmed threshol...

Page 195: ...in a cable with plastic insulation In this application it is possible that the fault energy melts the cable insulation which then reseals after clearance thereby eliminating the cause for the fault Th...

Page 196: ...he overload was applied from hot or cold Curves of the thermal overload time characteristic are given in Technical Data The mathematical formula applicable to MiCOM Relays is the following trip K K In...

Page 197: ...Application Guide P12y EN AP D32 MiCOM P125 P126 P127 APPLICATION GUIDE...

Page 198: ......

Page 199: ...ection applications 17 2 4 Directional Earth Fault Protection P125 P126 P127 19 2 4 1 General Setting Guidelines 20 2 4 2 An application of 67N in an Insulated Systems 21 2 4 3 Wattmetric Pe Character...

Page 200: ...2 11 Fuse application 46 5 AUTOMATIC CONTROL FUNCTIONS 48 5 1 Trip Commands 48 5 2 Latch relays 48 5 3 Broken Conductor Detection P126 P127 48 5 3 1 Setting Guidelines 48 5 3 2 Example Setting 49 5 4...

Page 201: ...6 RECORDS P126 P127 65 6 1 Event Records 65 6 2 Fault Records 65 6 3 Instantaneous Recorder 65 6 4 Disturbance Records 65 7 ROLLING AND PEAK VALUE DEMANDS P126 P127 66 7 1 Rolling demand 66 7 2 Peak v...

Page 202: ...P12y EN AP D32 Application Guide Page 4 74 MiCOM P125 P126 P127 BLANK PAGE...

Page 203: ...s most of faults are transient or semi permanent in nature In order to increase system availability multi shot autoreclose cycles are commonly used in conjunction with instantaneous tripping elements...

Page 204: ...There are 3 available separate models P125 P126 and P127 Since they cover a wide range of applications they optimise installation costs The protection and additional features of each model are summar...

Page 205: ...coil in insulated system and in system with neutral earthed The protection functions can be used in conjunction with blocking so as to optimise the performance of the protection schemes thus reducing...

Page 206: ...fault current can flow in both directions through a relay location it is necessary to add directionality to the overcurrent relays in order to obtain correct co ordination Typical systems that require...

Page 207: ...RCA setting also referred to as torque angle RCA defines the angle by which the current applied to the relay must be displaced from the voltage applied to the relay to obtain maximum relay sensitivit...

Page 208: ...eters are shown in the Technical Data of this Technical Guide The third threshold can be set as definite delay time only but can be set to work on the peak of the current measured in non directional w...

Page 209: ...I Rev Inst I Fwd Trip I Fwd forward Rev reverse The following figures show the windows where the first phase trip forward and instantaneous reverse trip can be assigned to an output relay The same one...

Page 210: ...age under this value the synchronous polarisation stored vector is used The synchronous polarisation is maintained up to the restoration of an input voltage value If the input voltage loss continues l...

Page 211: ...it is possible for load current to flow in either direction through the point where the relay is located Consequently the current setting must be above the maximum load current as in a standard non d...

Page 212: ...the 11kV busbar Consequently with this system configuration it is necessary to apply directional relays at these locations set to look into their respective upstream transformers These relays should c...

Page 213: ...system The normal grading procedure for overcurrent relays protecting a ring main circuit is to open the ring at the supply point and to grade the relays first clockwise and then counter clockwise Th...

Page 214: ...d below 2 3 1 Instantaneous Function 50 51 As soon as a phase threshold is running the instantaneous output associated with this threshold is activated This output indicates that the protection elemen...

Page 215: ...e blocking logic and selective functions so an overcurrent application will be shown in the part of this TG regarding the blocking logic and selective function The following diagrams show the function...

Page 216: ...P12y EN AP D32 Application Guide Page 18 74 MiCOM P125 P126 P127 P0362ENa Lock the timer IA DT LOGIC OF THE THIRD THRESHOLD I FOR THE 50 51 PROTECTION IB IC Blocking Logic Inst I Trip I...

Page 217: ...each tripping threshold and a settable angle from 0 to 359 in steps of 1 named torque RCA angle Ie Ue which can be separately set for each tripping threshold and The same threshold can be set as non d...

Page 218: ...when the VT connection option 2Vpp Vr two phase to phase or 2Vpn Vr two phase to neutral is set The P125 and P126 measures this voltage directly from a broken delta or single VT 2 4 1 General Setting...

Page 219: ...ver it is still essential that detection of the earth fault condition is achieved This is not possible if standard current operated earth fault protection equipment is used One possibility for earth f...

Page 220: ...hown to be leading the resultant A phase voltage by 90 Likewise the IB phase charging current leads the resultant voltage Vb by 90 The unbalance current detected by a core balance current transformer...

Page 221: ...ode The following figure shows the characteristic tripping zone for the wattmetric protection Pe Pe IeCos IeCos Pe IeCos Q IeSin 5 5 Tripping zone P0365ENa In the following formula the power threshold...

Page 222: ...itivity current measuring 0 001 to 1 In For input range 57 130V from 0 2 to 20 x Ien W in steps of 0 02 x Ien W For input range 220 480V from 1 to 80 x Ien W in steps of 0 1 The IeCos setting range is...

Page 223: ...The setting of the RCA follows the above listed table 2 4 6 Where use Iecos and where use Pe The wattmetric protection Pe Iecos is almost used in the Petersen Coil systems In a Petersen Coil scheme du...

Page 224: ...s balanced with heat dissipated by radiation etc Over temperature conditions therefore occur when currents in excess of rating are allowed to flow for a certain period of time It can be shown that tem...

Page 225: ...tings of these parameters are available in the various menus The calculation of the thermal state is given by the following formula e e T t T t 2 eq 1 e e 1 I k I being calculated every 100ms 2 5 3 Se...

Page 226: ...rm can be raised on reaching a thermal state corresponding to a percentage of the trip threshold A typical setting might be Thermal Trip 70 of thermal capacity 2 6 Undercurrent Protection P126 P127 Th...

Page 227: ...rent This is a dangerous condition for the motor due to the heating effects of negative phase sequence current at double frequency A negative phase sequence overcurrent element may be applied to provi...

Page 228: ...nger than the operating time of any other protective device at minimum fault level on the system which may respond to unbalanced faults such as Phase overcurrent protection elements Earth fault protec...

Page 229: ...oltage phases is used to be compared to the Ue The earth Overvoltage Protection function threshold This voltage at C input is considered as Ur and it is displayed in the measurement menu as UN Moreove...

Page 230: ...o sequence voltage are considered a single voltage and because it is not possible to modify the label in the display we have used the following terminology Ue for the thresholds UN for the measurement...

Page 231: ...order to achieve sufficient discrimination Complete loss of bus bar voltage This may occur due to fault conditions present on the incomer or busbar itself resulting in total isolation of the incoming...

Page 232: ...phase voltages Ideally the system should be designed to withstand such over voltages for a defined period of time Normally there will be a relay with a primary protection element employed to detect th...

Page 233: ...and non permanent faults are prevalent On HV and MV distribution networks the autoreclose function is applied mainly to radial feeders where system stability problems do not generally arise The main...

Page 234: ...n one instantaneous trip before the instantaneous protection is blocked Some schemes allow a number of re closings and time graded trips after the first instantaneous trip which may result in the burn...

Page 235: ...000 01 sec 600 00 sec 0 01 sec tD4 000 01 sec 600 00 sec 0 01 sec Reclaim Time tR 000 02 sec 600 00 sec 0 01 sec Inhibit Time tI 000 02 sec 600 00 sec 0 01 sec Phase Cycles 0 4 1 E Gnd Cycles 0 4 1 Cy...

Page 236: ...reclose by an external command If you set this item to Yes to make it active you have to assign to a digital input the function Block 79 by the inputs submenu in Automatic control function With the Ex...

Page 237: ...er will move the ARC in the lock status The setting value of the Inhibit Time tI can be used to prevent autoreclose being initiated when the CB is manually closed onto a fault 7 Phase and earth fault...

Page 238: ...The autoreclose is ready for a new cycles sequence It can occur that instead of 0 1 or 2 reading the setting on the LCD we find the symbol It means that the download setting regarding the configurati...

Page 239: ...With the above setting we will have two autoreclose cycles The third will be executed without any trip command and when the tR will be elapsed a Recloser Successful message will be provided on the LC...

Page 240: ...local S1 or by remote 4 2 4 Inputs setting For the configuration the only involved digital input is the CB status 52a This setting is necessary for the ARC functionality The lacking of this setting ge...

Page 241: ...oreclose Setting Guidelines Below there are listed the fundamental settings to enable the ARC to operate Again it is important to consider the congruence between the number of programmed cycles and th...

Page 242: ...y capable of tolerating extremely short interruptions of supply without loss of synchronism In practice it is desirable to disconnect the motor from the supply in the event of a fault The dead time sh...

Page 243: ...to a fault For high speed autoreclose instantaneous reset of protection is required Typical 11 33kV dead time settings in the UK are as follows 1st dead time 5 10 seconds 2nd dead time 30 seconds 3rd...

Page 244: ...ice to block autoreclose by operation of sensitive earth fault protection and lockout the circuit breaker Where motor wound spring closed circuit breakers are used the reclaim time must be at least as...

Page 245: ...gress 4 tD1 is expired 5 Closing of the CB and start of the tR Due to the setting of the ARC the I will start but won t generate a trip During the delay trip time of the I the fault will be cleared fo...

Page 246: ...urrent on the system and hence are not easily detectable by standard overcurrent protection elements available with common relays However they will produce an unbalance and an important level of negat...

Page 247: ...ormance during starting Cold Load Pick up CLP setting is described in the Technical Data TD the CLP menu in the User Guide FT The timer tCL in the CLP menu controls the time for which the relevant pro...

Page 248: ...the residually connected earth fault element For this reason it is normal to either apply a nominal time delay to the element or to utilise a series stabilising resistor The CLP logic may be used to...

Page 249: ...ities than the blocked overcurrent arrangement A B C P0024ENa TYPICAL SELECTIVE SCHEME LOGIC The SOL function temporarily increases the time delay settings of the second and third stages of phase over...

Page 250: ...m relay C the start output from relay C will block operation of relay B the start output of relay B will block operation of relay A All the 3 relays could have the same time and current threshold sett...

Page 251: ...sment of the circuit breaker condition to be determined These CB condition monitoring features are discussed in the following section 5 10 Circuit Breaker Condition Monitoring Features P126 P127 For e...

Page 252: ...enance threshold will allow an alarm to be raised indicating when preventative maintenance is due Should maintenance not be carried out the relay can be set to lockout the autoreclose function on reac...

Page 253: ...relays monitor the current signal of each phase and they compare each phase current signal with the undercurrent I BF threshold settable its menu If the undercurrent I BF is FALSE Ia Ib Ic FALSE when...

Page 254: ...ccording to one of the typical application diagrams shown in the following example The method of connecting the logic input to provide TC supervision is shown later When the function TC Supervision is...

Page 255: ...In this example both 52a and 52b auxiliary contacts are available the MiCOM P126 and P127 relays monitor the complete trip circuit when the CB is closed and a part of the trip circuit when the CB is o...

Page 256: ...lete trip circuit whatever the CB status CB open or CB closed In this case it is necessary to insert a R1 if either the output RL1 trip is latched or it stays involuntarily closed or a long time trip...

Page 257: ...8 x Ua 38 0 0022 The R1 resistor withstand value in Watt is defined below W 1 R U 2 1 2 P 2 a 1 R 2 Case of example no 3 The R1 resistor maximum value in Ohm is defined by the following formula Ohm R...

Page 258: ...e I and I is provided to initiate the Sotf function 5 13 2 SOTF TOR description The SOTF TOR function can be initiated by a local manual control close CB detected by the digital input Man Close or by...

Page 259: ...gate within submenu points press To modify setting press Use to scroll and set available selections Press to confirm choice Sotf No Selection of the Sotf function Setting choice Yes No If Yes is selec...

Page 260: ...ility to assign independently to the trip and auxiliary relays these informations 5 14 1 Local remote conditioning by logical input One logic input named LOCAL MODE is dedicated to this feature If thi...

Page 261: ...ns the output relay 0 no assignment AUTOMATIC CTRL INPUTS Input 1 7 Local Assigning the Local mode condition to choose digital input from 1 to 7 If the choose input is active any remote operation invo...

Page 262: ...ormation to one or more of the equations A B C and D set the value 0 or 1 under the choice letter t U DCBA 0001 To allocate tU trip information to one or more of the equations A B C and D set the valu...

Page 263: ...is logged some time after the actual fault record is generated The fault records are available for viewing either on the display or via the front panel EIA RS232 port or remotely via the rear EIA RS48...

Page 264: ...ndow values on the number of Num of Sub Periods periods The setting of the number of Sub Period Num of Sub Periods in the RECORDS Rolling Demand Num of Sub Per menu Setting range from 1 to 24 Display...

Page 265: ...is new value is lower than the previous value already stored then the previous value is kept stored In this way a average peak vale will be refreshed each Sub Period There is no dedicated setting for...

Page 266: ...oup 2 8 1 1 Setting group change by digital input It is possible to configure the change of the setting group by a digital input either on falling edge low level or on rising edge high level The choic...

Page 267: ...Q QA QB QC 2Vpp Vr Aron insertion The value for energy is calculated by multiplying the calculated power value by time The calculated energy value is stored in a non volatile memory E PROM every secon...

Page 268: ...asured value displayed is 9999MVAr If the measured value is above 9999MVAr this display remains on the LCD Cos Phi 1 00 Displays the three phases power factor Energy CLR C Header for energy measuremen...

Page 269: ...ssible to select the relay with the digital inputs with EA approval regulation See the technical data for further information The setting menu for this functionality is in the CONFIGURATION menu For m...

Page 270: ...e Mode YES When activating this menu YES the Alarm led will start flashing and an alarm message will appear MAINTENANCE MODE In this case all output contacts are blocked no operation will take place o...

Page 271: ...s 12 1 Definite time IDMT overcurrent earth fault protection Time delayed Phase overcurrent elements VK Icp 2 RCT RL Rrp Time delayed Earth Fault overcurrent elements VK Icn 2 RCT 2RL Rrp Rrn 12 2 Ins...

Page 272: ...rospective secondary earth fault current or 31 times I setting whichever is lower amps Icp Maximum prospective secondary phase fault current or 31 times I setting whichever is lower amps Isn Stage 2 3...

Page 273: ...Commissioning and Maintenance P12y EN CM C22 MiCOM P125 P126 P127 COMMISSIONING AND MAINTENANCE GUIDE...

Page 274: ......

Page 275: ...on 6 3 4 Earthing 6 3 5 Current transformers CT s 6 3 6 Use of a Core Balance CT for earth faults 7 3 6 1 Cable shields and core CT 7 3 6 2 Core CT polarity 7 3 7 Auxiliary supply 8 3 8 Logic inputs 8...

Page 276: ...5 1 3 Hardware and software faults 20 5 2 Method of repair 21 5 2 1 Replacing the active part 21 5 2 2 Replacing the complete relay 21 5 2 3 Changing the battery MiCOM P126 P127 only 21 5 3 Problem s...

Page 277: ...y It is considered unnecessary to tests every function of the relay if the settings have been verified by one of the following method Extracting the settings applied to the relay using the appropriate...

Page 278: ...P127 relays Thus the following descriptions indicate how to conduct the commissioning tests with a single phase injection test set However for certain commissioning tests the three phase wiring diagr...

Page 279: ...The presentation of the Commissioning test sheets follows the description of the tests of this chapter The contents of these Commissioning test sheets enable you to log The name of the relay station...

Page 280: ...corresponds to the appropriate relay diagram or the assembly diagram The reference number of the relay diagram is indicated on a label situated under the upper flap of the front panel When the relay i...

Page 281: ...hrough the core CT This cancels the currents carried by the cable shields through the core CT S1 S2 P1 P2 Electrical cables directed to the busbar Screen shields Other ends of electrical cables P0041E...

Page 282: ...127 have 7 logic opto isolated inputs The opto inputs should be energised a time The status of the input can be viewed using menu OP PARAMETERS Input Status a 1 indicating an energised input and a 0 i...

Page 283: ...lue WD Relay Terminals 35 37 P125 P126 and P127 Normal close RL 1 Change over type Terminals 2 Common 4 NC 6 NO P125 P126 and P127 00000001 RL 2 Change over type Terminals 8 Common 10 NC 12 NO P125 P1...

Page 284: ...ed timers 4 1 Settings Log the settings on the commissioning test sheets 4 2 Measurements The MiCOM P125 P126 P127 relays measure phase and earth currents phase phase to phase voltage zero sequence vo...

Page 285: ...nu as 2Vph ph Vr VT connection mode See User Guide chapter P12y EN FT of this Technical Guide Note the select phase and earth CTs ratio phase voltage VTs ratio and neutral voltage VTs ratio Energise t...

Page 286: ...current to terminals as in wiring diagrams in chapter P12y EN CO of this Technical Guide The applied current and voltage must be great than setting value 4 3 2 MiCOM P125 Settings Configuration Menu...

Page 287: ...A E Gnd CT Sec 1 A E Gnd VT primary 0 100 kV E Gnd VT Sec 100 0 V Protection Menu G1 I Yes I 1 In tI DT or IDMT or RI tI if DT 10 s Curve if IDMT IEC VI or IEEE VI TMS value if IDMT 1 K value if RI 1...

Page 288: ...rimary 0 100 kV Line VT Sec 100 0 V E Gnd VT primary 0 100 kV E Gnd VT Sec 100 0 V Protection Menu G1 I Yes I 1 In tI DT or IDMT or RI tI if DT 10 s Curve if IDMT IEC VI or IEEE VI TMS value if IDMT 1...

Page 289: ...t up to the value of the Ie threshold If the time delay tIe is long inject 0 95 x I threshold and check that there is no tripping Then inject 1 1 x Ie threshold and check the trip Gradually decreases...

Page 290: ...08 0 07 0 09 MI 3 8 3 4 4 2 1 2 1 08 1 32 I 2 2 1 9 2 4 0 3 0 27 0 33 VI 7 2 6 5 8 0 7 0 63 0 77 EI 9 5 8 5 10 5 0 4 0 36 0 44 Checks Ie Alarm message on the LCD display Alarm LED flashes Trip LED on...

Page 291: ...on after that the setting trip delay time is expired I threshold LED on if programmed after that the setting trip delay time is expired Trip output closes after that the setting trip delay time is ex...

Page 292: ...ues found with the theoretical values calculated according to the formula of the curves NOTE Equations of IEC IEEE ANSI and RI curves are given in chapter P12y EN TD of this Technical Guide Checks I A...

Page 293: ...ds etc If it is necessary to disconnect any of the external wiring from the relay in order to perform the wiring verification tests it should be ensured that all connections are replace in accordance...

Page 294: ...P125 P126 and P127 protection and automation modules are not affected Message COMM ERROR Communication fault Cause Hardware or software failure of the communication module Action Withdraw the active...

Page 295: ...rth connection from the rear of the relay Remove the screws used to fasten the relay to the panel rack etc These are the screws with the larger diameter heads that are accessible when the upper and lo...

Page 296: ...y and remotely Problem The measurements noted remotely and locally via RS485 communication differ Cause The values accessible on the front face via the Measurement menu are refreshed every second Thos...

Page 297: ...The communication between the relay and the PC is correct but the relay does not accept any remote command or file downloading Cause Generally this is due to the fact that the relay is in programming...

Page 298: ...P12y EN CM C22 Commissioning and Maintenance Page 24 24 MiCOM P125 P126 P127 BLANK PAGE...

Page 299: ...Connections and Wiring Diagrams P12y EN CO C22 MiCOM P125 P126 P127 CONNECTIONS AND WIRING DIAGRAMS...

Page 300: ......

Page 301: ...NT 1 P125 REAR DESCRIPTION 3 1 1 P125 wiring diagram 4 2 P126 P127 REAR DESCRIPTION 5 2 1 Scheme representing MiCOM P126 6 2 2 Scheme representing MiCOM P127 7 3 P126 P127 CURRENT INSERTION SCHEMES 8...

Page 302: ...P12y EN CO C22 Connections and Wiring Diagrams Page 2 10 MiCOM P125 P126 P127 BLANK PAGE...

Page 303: ...1 Case earth connection 29 30 Terminal RS485 Common output 5 3 4 Output 1 NC RS485 31 32 RS485 Output 6 5 6 Output1 NO Vaux 33 34 Vaux Common output 6 7 8 Common output 2 Relay faulty 35 36 Common Wa...

Page 304: ...3 _ 33 34 Auxiliary Voltage MiCOM P125 39 40 5A 48 47 29 30 Case earth connection Communication cable shield Terminal RS485 31 32 RS485 Communication Port _ Watch Dog Programmable input L1 Programmabl...

Page 305: ...7 9 10 Output 2 NC Relay healthy 37 38 67 68 Output 7 11 12 Output 2 NO 39 40 Voltage input VA 69 70 Voltage input VA Common output 8 13 14 Output 3 Current input IA 5A 41 42 Current input IA 5A Volt...

Page 306: ...mmable input L4 Programmable input L5 Programmable input L6 Programmable input L7 49 51 50 A B C 1A 1A 1A 52 53 54 WD RL1 RL2 RL RL4 RL6 RL5 RL7 RL8 35 37 36 4 6 2 10 12 8 14 16 18 20 3 1 7 5 9 11 13...

Page 307: ...e 34 29 30 Case earth connection Communication cable shield Terminal RS485 31 32 RS485 Communication _ MiCOM P127 TCS A B C Phase rotation Programmable input L1 Programmable input L2 Programmable inpu...

Page 308: ...iagrams Page 8 10 MiCOM P125 P126 P127 3 P126 P127 CURRENT INSERTION SCHEMES 3 1 P126 P127 Holmgreen CT s insertion Phase rotation Auxiliary voltage MiCOM P126 P127 Three phases CTs IA IB IC residual...

Page 309: ...and Wiring Diagrams P12y EN CO C22 MiCOM P125 P126 P127 Page 9 10 3 2 P126 P127 Two phases CT s insertion Phase rotation Auxiliary voltage MiCOM P126 P127 Two phases CTs IA IC residual current inserti...

Page 310: ...P12y EN CO C22 Connections and Wiring Diagrams Page 10 10 MiCOM P125 P126 P127 BLANK PAGE...

Page 311: ...Commissioning Test and Record Sheet P12y EN RS D32 MiCOM P125 P126 P127 COMMISSIONING TEST AND RECORD SHEET...

Page 312: ......

Page 313: ...1 13 2 ARC test procedure with tIe 11 2 COMMISSIONING RECORD SHEET 12 3 P126 P127 FURTHER TESTS 37 3 1 Introduction 37 3 2 Test equipment 37 3 3 Type used relay 37 3 4 Test configuration 37 3 5 Connec...

Page 314: ...1 Under voltage 44 3 8 2 Phase to neutral under voltage element 45 3 8 3 Over voltage 45 3 8 4 Phase to neutral over voltage element 45 3 8 5 Residual over voltage 45 3 9 Automatic control functions 4...

Page 315: ...cation protocol Language 1 2 Commissioning test record write OK or No after each checked stage where there is Serial number check All current transformer shorting switches closed Wiring checked agains...

Page 316: ...tage Applied Measured value Phase A UA Phase B UB Residual Voltage Applied Measured value Residual Voltage UN NOTE The measured values are displayed in the Measurement submenu of the involved relay 1...

Page 317: ...n I 0 5x I 1s Type and setting threshold in In Value applied in In Delay Time Setting Measured Trip Delay time Drop value in In I 2 5x I 1s Type and setting threshold in In Value applied in In Delay T...

Page 318: ...e 1s Type and setting threshold in Ien Value applied in Ien Delay Time Setting Measured Trip Delay time Drop value in In Ie 2 x Ie 1s Type and setting threshold in Ien Value applied in Ien Delay Time...

Page 319: ...Torque angle and trip zone Ie 2 x Ie Ue 10V 80V Torque angle 0 0 Trip Zone 90 85 1s 1 10 Earth Fault Wattmetric protection test The earth fault wattmetric protection can be tested but as above needs...

Page 320: ...t U 2 x U 1s Type and setting threshold in Volt Value applied in Volt Delay Time Setting Trip value in Volt Drop value in Volt U 0 2 x U 1s Type and setting threshold in Volt Value applied in Volt Del...

Page 321: ...g table and the test procedure is listed MENU TEXT SET FOR THE TEST PROTECTION G1 67 Phase OC I Yes I 1 In Delay type DMT tI 1 sec I Yes I 2 In Delay DMT tI 1 sec I No 67N E GND Ie Yes Ie 1 In Delay t...

Page 322: ...indicating setting are those used for internal test In the output relay none other functionality can be assigned to the relay CB Close AUTOMATIC CTRL MENU SET FOR THE TEST Output relay CB Close relay...

Page 323: ...art tR After 1 sec The CB open and td 2 start When we are to the td 4 when the CB close and after 1 sec the tI trip the 79 trip and Recl Blocked will be actived 4 shots was done 1 13 2 ARC test proced...

Page 324: ...N A 3Vpn or 2Vpp Vr or 2Vpn Vr Default Display N A IA or IB or IC or IN Transfo Ratio Line CT primary N A 1A 9999A 1A Line CT sec N A 1A 5A 1A E Gnd CT primary 1A 9999A 1A E Gnd CT sec 1A 5A 1 5 57 13...

Page 325: ...es No I2 N A Yes No tI2 N A Yes No I2 N A Yes Yes tI2 N A Yes No Ther Trip N A Yes No I N A Yes No tI N A Yes No U N A N A Yes No tU N A N A Yes No U N A N A Yes No tU N A N A Yes No U N A N A Yes No...

Page 326: ...No tI N A Yes No tIA N A Yes No tIB N A Yes No tIC N A Yes No Ie Yes No tIe Yes No Ie Yes No tIe Yes No Ie Yes No tIe Yes No Pe IeCos Yes No tPe IeCos Yes No Pe IeCos Yes No tPe IeCos Yes No I2 N A Ye...

Page 327: ...No Input 4 Yes No Input 5 N A Yes No Input 6 N A Yes No Input 7 N A Yes No Recloser Run N A Yes No Recl Blocked N A Yes No tAux1 Yes No tAux2 Yes No tSOTF N A Yes No Led 7 I N A Yes No tI N A Yes No...

Page 328: ...U N A N A Yes No tU N A N A Yes No U N A N A Yes No tU N A N A Yes No U N A N A Yes No tU N A N A Yes No Ue Yes No tUe Yes No Brkn Cond N A Yes No CB Fail N A Yes No Input 1 Yes No Input 2 Yes No Inp...

Page 329: ...No tPe IeCos Yes No I2 N A Yes No tI2 N A Yes No I2 N A Yes No tI2 N A Yes No I2 N A Yes Yes tI2 N A Yes No Ther Trip N A Yes No I N A Yes No tI N A Yes No U N A N A Yes No tU N A N A Yes No U N A N...

Page 330: ...active High Input 7 N A Active Low or active High Voltage Input DC AC Start Stop tAux1 by LEVEL EDGE Start Stop tAux2 by LEVEL EDGE Start Stop tAux3 by LEVEL EDGE Start Stop tAux4 by LEVEL EDGE RL1 O...

Page 331: ...et N A N A 0 00 s 100 s 0 01 s Interlock I I I N A N A No or Yes I R C A Torque Angle N A N A N A N A 0 359 1 I Trip zone N A N A N A N A 10 170 1 I N A N A No Yes or DIR in P127 No Yes in P126 I N A...

Page 332: ...Interlock Ie Ie Ie No or Yes Ie R C A Torque Angle 0 359 1 Ie Trip zone 10 170 1 57 130V Input voltage Cortec code P127CAX X Ue 1 V 260 V 0 1 V 220 480V Input voltage Cortec code P127CBX X Ue 4 V 960...

Page 333: ...or Yes or DIR Ie 0 01 Ien 1 Ien 0 005 Ien Delay type DT or IDMT IEC_STI IEC_SI IEC_VI IEC_EI IEC_LTI C02 C08 IEEE_MI IIEEE_VI IEEE_EI RI RECT curve Ie Trip delay time 0 s 150s 0 01s Ie TMS 0 025 1 5 0...

Page 334: ...put voltage Cortec code P127BAX X Ue 1 V 260 V 0 1 V 220 480V Input voltage Cortec code P127BBX X Ue 4 V 960 V 0 5 V Low sensitivity Current input from 0 1to 40 Ien Cortec code P12 A X X Ie No or Yes...

Page 335: ...V 0 5 V Ie No or Yes or DIR or Peak Ie 0 5 Ien 40 Ien 0 01 Ien Ie Trip delay time 0 s 150s 0 01s Ie tReset 0 00 s 100 s 0 01 s Ie R C A Torque Angle 0 359 1 Ie Trip zone 10 170 1 57 130V Input voltag...

Page 336: ...DMT Pe RTMS 0 025 1 5 0 025 Pe tReset 0 00 s 100 s 0 01 s Pe No or Yes Pe 1 x K W 80 x K W 0 1 x K W tPe Trip delay time 0 s 150s 0 01s Pe tReset 0 00 s 100 s 0 01 s Pe IeCos Angle 0 359 1 Med sensiti...

Page 337: ...0 00 s 100 s 0 01 s Pe IeCos Angle 0 359 1 Low sensitivity Current input from 0 1 to 40 Ien 57 130V Input voltage Cortec code P12 AAX X Pe No or Yes Pe 10 x K W 800 x K W 1 x K W Delay type DT or IDM...

Page 338: ..._MI IIEEE_VI IEEE_EI RI RECT curve IeCos Trip delay time 0 s 150s 0 01s k 0 10 0 001 IeCos TMS 0 025 1 5 0 025 IeCos Reset char DT or IDMT IeCos RTMS 0 025 1 5 0 025 IeCos tReset 0 00 s 100 s 0 01 s I...

Page 339: ...5 IeCos tReset 0 00 s 100 s 0 01 s IeCos Yes or No IeCos 0 5 Ien 40 Ien 0 01 Ien IeCos Trip delay time 0 s 150s 0 01s IeCos tReset 0 00 s 100 s 0 01 s Pe IeCos Angle 0 359 1 46 Neg Seq OC I2 N A N A N...

Page 340: ...Cortec code P127 BX X U N A N A N A N A 10 V 960 V 0 5 V tU N A N A N A N A 0 s 600 s 0 01 s U N A N A N A N A No or AND or OR 57 130V Input voltage Cortec code P127 AX X U N A N A N A N A 2 V 260V 0...

Page 341: ...01 s td2 Dead time 2 N A N A 0 01 s 300 s 0 01 s td3 Dead time 3 N A N A 0 01 s 600 s 0 01 s td4 Dead time 4 N A N A 0 01 s 600 s 0 01 s tR Reclain time N A N A 0 02 s 600 s 0 01 s Inhib Time tI N A N...

Page 342: ...2 N A Yes No Trip tI2 N A Yes No Thermal Trip N A Yes No Trip tI N A Yes No Trip tU N A N A Yes No Trip tU N A N A Yes No Trip tU N A N A Yes No Trip tU N A N A Yes No Trip tUe N A N A Yes No Trip Brk...

Page 343: ...lock tI2 N A N A Yes No Thermal Block N A N A Yes No Block tI N A N A Yes No Block tU N A N A N A N A Yes No Block tU N A N A N A N A Yes No Block tU N A N A N A N A Yes No Block tU N A N A N A N A Ye...

Page 344: ...1 1 tIe 0 1 1 Ie _R 0 1 1 Ie 0 1 1 tIe 0 1 1 Ie _R 0 1 1 Ie 0 1 1 tIe 0 1 1 Ie _R 0 1 1 Pe IeCos 0 1 1 tPe IeCos 0 1 1 Pe IeCos 0 1 1 tPe IeCos 0 1 1 I2 N A 0 1 1 tI2 N A 0 1 1 I2 N A 0 1 1 tI2 N A 0...

Page 345: ...ux 1 Aux 2 Aux 3 Aux 4 CB FLT Reset Change set Log Sel 2 Log Sel 1 Cold L PU Strt Dist Block 79 Trip Circ Start tBF Maint M Man Close Local Input 3 None Unlatch 52 a 52 b Blk Log 1 Blk Log 2 Aux 1 Aux...

Page 346: ...Cold Load PU N A Yes No Cold Load PU tI N A Yes No Cold Load PU tI N A Yes No Cold Load PU tI N A Yes No Cold Load PU tIe N A Yes No Cold Load PU tIe N A Yes No Cold Load PU tIe N A Yes No Cold Load...

Page 347: ...s I N A Yes No I N A Yes No AND LOGIC EQUAT A B C D A B C D I N A 0 1 1 tI N A 0 1 1 I N A 0 1 1 tI N A 0 1 1 I N A 0 1 1 tI N A 0 1 1 Ie N A 0 1 1 tIe N A 0 1 1 Ie N A 0 1 1 tIe N A 0 1 1 Ie N A 0 1...

Page 348: ...600 s 0 01 s EQU A Treset N A 0 s 600 s 0 01 s EQU B Toperator N A 0 s 600 s 0 01 s EQU B Treset N A 0 s 600 s 0 01 s EQU C Toperator N A 0 s 600 s 0 01 s EQU C Treset N A 0 s 600 s 0 01 s EQU D Toper...

Page 349: ...ent The test procedure has been written on the assumption that an Omicron or equivalent test set will be used Auxiliary supplies of adequate rating will also be required 3 3 Type used relay The follow...

Page 350: ...n I after on I 3 7 1 1 Pass Criteria For the relay to pass it shall operate as detailed below Delay trip IDMT inverse time only for I Pick up should occur at 1 1Is 2 Reset should occur at 1 04Is 2 Del...

Page 351: ...ust then be reduced in the same manner until the protection resets Repeat the above test for all stages of Earth fault protection delay type is DT 3 7 3 2 Pass Criteria For the relay to pass it shall...

Page 352: ...nts The Ie current is the output common of the phase current inputs Test with the following relay settings E GND Primary 5A E GND Secondary 5A Ie 0 2 Ien Characteristic IDMT Curve IEC_SI Standard Inve...

Page 353: ...ion to be determined by start contacts Is 0 2 Ien Torque Angle RCA 180 Boundary trip zone 45 Enable stage and configure the test set applying Ua 50V Ub 57 70V Uc 57 70V Apply A phase current of twice...

Page 354: ...first stage 3 7 8 1 Pass Criteria For the relay to pass it shall operate as detailed below DT operating time 1 0s 2 IDMT operating time 10 07s 2 at 2 Ies 2 999s 2 at 10 Ies 3 7 9 Directionaloperating...

Page 355: ...y type IDMT IEC SI CURVE Reset time 0 04s Torque angle 180 Inject Ua 57 7V Ub 57 7V Uc 57 7V with these values the Ue is equal to 0 Inject the Ia phase current with displacement 0 with Ua to have the...

Page 356: ...l overload starts and trips applied to the relay operate correctly Test with the following relay settings Thermal trip current I 0 5 In Thermal alarm No Time Constant Te 1 min K 1 Trip 100 Configure t...

Page 357: ...100V Enable stage 1 and apply three phase voltages 50V per phase to the relay After 1s increase the phase A voltage and phase B voltage to 60V Measure the operating times of the relay start and trip...

Page 358: ...CB Monitoring TCS ON and Input menu Assign Trip Circ to input 1 Assign an output relay to the 52 Fail Procedure Supply the input and verify that the led and the relay are OFF Remove the supply from th...

Page 359: ...me Delay 2s Directionality Non directional Reset time delay 0s Is I 1In Inputs Input 1 Cold L PU Apply three phase currents to the relay at a magnitude of 1 5 In and supply the input 1 Verify after 8...

Page 360: ...P12y EN RS D32 Commissioning Test and Record Sheet Page 48 48 MiCOM P125 P126 P127 BLANK PAGE...

Page 361: ......

Page 362: ...AREVA T D s Automation Information Systems Business www areva td com T D Worldwide Contact Centre online 24 hours a day 44 0 1785 25 00 70 http www areva td com contactcentre Publication P12Y EN T E32...

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