ABB RET650 2.1 IEC Commissioning Manual page 9

Transformer protection RET650 2.1 IEC
Commissioning manual
Enable forcing by using LHMI................................................ 59
Enable forcing using TESTMODE function block...................60
How to change binary input/output signals using forcing............ 60
Forcing by using LHMI........................................................... 60
Forcing by using PCM600...................................................... 62
How to undo forcing changes and return the IED to normal
operation......................................................................................64
Undo forcing by using TESTMODE component.....................64
Undo forcing by using LHMI................................................... 64
Undo forcing by using PCM600..............................................64
Section 10 Testing functionality by secondary injection................... 67
Testing disturbance report................................................................67
Introduction..................................................................................67
Disturbance report settings..........................................................67
Disturbance recorder (DR).......................................................... 67
Event recorder (ER) and Event list (EL)...................................... 68
Identifying the function to test in the technical reference manual ....69
Differential protection........................................................................69
Transformer differential protection T3WPDIF..............................69
Verifying the settings.............................................................. 69
Completing the test................................................................ 70
Restricted earth-fault protection, low impedance REFPDIF ....... 70
Verifying the settings.............................................................. 70
Completing the test................................................................ 71
Current protection.............................................................................71
Instantaneous phase overcurrent protection 3-phase output
PHPIOC ......................................................................................71
Measuring the operate limit of set values...............................71
Completing the test................................................................ 72
Four step phase overcurrent protection 3-phase output
OC4PTOC................................................................................... 72
Verifying the settings.............................................................. 72
Completing the test................................................................ 73
Instantaneous residual overcurrent protection EFPIOC ............. 73
Measuring the operate limit of set values...............................74
Completing the test................................................................ 74
Four step residual overcurrent protection, (Zero sequence or
negative sequence directionality) EF4PTOC ..............................74
Four step directional earth fault protection............................. 74
Four step non-directional earth fault protection......................75
Completing the test................................................................ 75
Thermal overload protection, two time constants TRPTTR ........75
Checking operate and reset values........................................75
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