
9.8.4.2 Undo forcing by using LHMI.................................................................................................. 60
9.8.4.3 Undo forcing by using PCM600............................................................................................ 60
Section 10 Testing functionality by secondary injection............................................... 63
10.1 Testing disturbance report............................................................................................................63
10.1.1 Introduction..................................................................................................................................63
10.1.2 Disturbance report settings......................................................................................................63
10.1.3 Disturbance recorder (DR).........................................................................................................63
10.1.4 Event recorder (ER) and Event list (EL)................................................................................... 64
10.2 Identifying the function to test in the technical reference manual ......................................64
10.3 Differential protection....................................................................................................................64
10.3.1 High impedance differential protection HZPDIF .................................................................64
10.3.1.1 Verifying the settings..............................................................................................................65
10.3.1.2 Completing the test................................................................................................................ 65
10.4 Impedance protection.................................................................................................................... 65
10.4.1 Distance protection zones, quadrilateral and mho characteristic ZMFPDIS.................. 65
10.4.1.1 Measuring the operating limit of set values.......................................................................68
10.4.1.2 Measuring the operating time of distance protection zones.........................................69
10.4.1.3 Completing the test................................................................................................................ 69
10.4.2 Automatic switch onto fault logic ZCVPSOF.........................................................................69
10.4.2.1 Activating ZCVPSOF externally..............................................................................................70
10.4.2.2 Initiating ZCVPSOF automatically and setting mode to impedance.............................70
10.4.2.3 Initiating ZCVPSOF automatically and setting mode to UILevel ...................................70
10.4.2.4 Completing the test.................................................................................................................70
10.5 Current protection...........................................................................................................................70
10.5.1 Instantaneous phase overcurrent protection 3-phase output PHPIOC .......................... 70
10.5.1.1 Measuring the operate limit of set values........................................................................... 71
10.5.1.2 Completing the test................................................................................................................. 71
10.5.2 Four step phase overcurrent protection 3-phase output OC4PTOC.................................71
10.5.2.1 Verifying the settings.............................................................................................................. 71
10.5.2.2 Completing the test.................................................................................................................72
10.5.3 Instantaneous residual overcurrent protection EFPIOC .....................................................72
10.5.3.1 Measuring the operate limit of set values...........................................................................72
10.5.3.2 Completing the test.................................................................................................................73
10.5.4 Four step residual overcurrent protection, (Zero sequence or negative sequence
directionality) EF4PTOC ............................................................................................................ 73
10.5.4.1 Four step directional earth fault protection.......................................................................73
10.5.4.2 Four step non-directional earth fault protection.............................................................. 73
10.5.4.3 Completing the test.................................................................................................................74
10.5.5 Breaker failure protection, phase segregated activation and output CCRBRF..............74
10.5.5.1 Checking the phase current operate value,
IP>
..................................................................74
10.5.5.2 Checking the residual (earth fault) current operate value
IN>
set below
IP>
.............. 74
10.5.5.3 Checking the re-trip and back-up times.............................................................................. 75
10.5.5.4 Verifying the re-trip mode...................................................................................................... 75
10.5.5.5 Verifying the back-up trip mode........................................................................................... 75
10.5.5.6 Verifying instantaneous back-up trip at CB faulty condition..........................................76
10.5.5.7 Verifying the case
RetripMode
=
Contact
........................................................................... 76
Table of contents
3
Commissioning manual