How to undo forcing changes and return the IED to normal
operation......................................................................................65
Undo forcing by using TESTMODE component.....................65
Undo forcing by using LHMI................................................... 65
Undo forcing by using PCM600..............................................65
Section 9 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
Current protection.............................................................................69
Instantaneous phase overcurrent protection 3-phase output
PHPIOC ......................................................................................69
Measuring the operate limit of set values...............................69
Completing the test................................................................ 70
Directional phase overcurrent protection, four steps
OC4PTOC................................................................................... 70
Verifying the settings.............................................................. 70
Completing the test................................................................ 72
Instantaneous residual overcurrent protection EFPIOC ............. 72
Measuring the operate limit of set values...............................72
Completing the test................................................................ 73
Four step residual overcurrent protection, (Zero sequence
or negative sequence directionality) EF4PTOC ......................... 73
Four step directional earth fault protection............................. 73
Four step non-directional earth fault protection......................74
Completing the test................................................................ 74
Four step negative sequence overcurrent protection
NS4PTOC ...................................................................................74
Completing the test................................................................ 75
Breaker failure protection, phase segregated activation and
output CCRBRF...........................................................................75
Checking the phase current operate value,
IP>
..................... 76
Checking the residual (earth fault) current operate value
IN>
set below
IP>
................................................................... 76
Checking the re-trip and back-up times..................................76
Verifying the re-trip mode....................................................... 76
Verifying the back-up trip mode..............................................77
Verifying instantaneous back-up trip at CB faulty condition... 78
Verifying the function mode
Current/Contact
......................... 79
Completing the test................................................................ 79
Stub protection STBPTOC.......................................................... 79
Table of contents
Breaker protection REQ650 2.2 IEC 3
Commissioning manual