
9.8.4.2 Undo forcing by using LHMI.................................................................................................. 56
9.8.4.3 Undo forcing by using PCM600............................................................................................ 56
Section 10 Testing functionality by secondary injection............................................... 59
10.1 Testing disturbance report............................................................................................................59
10.1.1 Introduction..................................................................................................................................59
10.1.2 Disturbance report settings......................................................................................................59
10.1.3 Disturbance recorder (DR).........................................................................................................59
10.1.4 Event recorder (ER) and Event list (EL)...................................................................................60
10.2 Identifying the function to test in the technical reference manual ......................................60
10.3 Differential protection....................................................................................................................60
10.3.1 Transformer differential protection T3WPDIF...................................................................... 60
10.3.1.1 Verifying the settings.............................................................................................................. 61
10.3.1.2 Completing the test.................................................................................................................61
10.3.2 High impedance differential protection HZPDIF ................................................................. 61
10.3.2.1 Verifying the settings.............................................................................................................. 61
10.3.2.2 Completing the test.................................................................................................................62
10.3.3 Restricted earth-fault protection, low impedance REFPDIF ..............................................62
10.3.3.1 Verifying the settings..............................................................................................................62
10.3.3.2 Completing the test.................................................................................................................63
10.4 Current protection...........................................................................................................................63
10.4.1 Instantaneous phase overcurrent protection 3-phase output PHPIOC .......................... 63
10.4.1.1 Measuring the operate limit of set values.......................................................................... 63
10.4.1.2 Completing the test................................................................................................................ 64
10.4.2 Four step phase overcurrent protection 3-phase output OC4PTOC................................64
10.4.2.1 Verifying the settings..............................................................................................................64
10.4.2.2 Completing the test................................................................................................................ 65
10.4.3 Instantaneous residual overcurrent protection EFPIOC .................................................... 65
10.4.3.1 Measuring the operate limit of set values.......................................................................... 65
10.4.3.2 Completing the test................................................................................................................ 65
10.4.4 Four step residual overcurrent protection, (Zero sequence or negative sequence
directionality) EF4PTOC ............................................................................................................65
10.4.4.1 Four step directional earth fault protection...................................................................... 66
10.4.4.2 Four step non-directional earth fault protection..............................................................66
10.4.4.3 Completing the test................................................................................................................ 66
10.4.5 Thermal overload protection, one time constant, Celsius/Fahrenheit
LCPTTR/LFPTTR.......................................................................................................................... 66
10.4.5.1 Measuring the operate and time limit of set values......................................................... 66
10.4.5.2 Completing the test.................................................................................................................67
10.4.6 Thermal overload protection, two time constants TRPTTR ...............................................67
10.4.6.1 Checking operate and reset values...................................................................................... 67
10.4.6.2 Completing the test................................................................................................................ 68
10.4.7 Breaker failure protection, phase segregated activation and output CCRBRF..............68
10.4.7.1 Checking the phase current operate value,
IP>
................................................................. 68
10.4.7.2 Checking the residual (earth fault) current operate value
IN>
set below
IP>
..............68
10.4.7.3 Checking the re-trip and back-up times..............................................................................68
10.4.7.4 Verifying the re-trip mode......................................................................................................69
Table of contents
3
Commissioning manual