
9.1.1 Introduction.................................................................................................................................. 61
9.1.2 Disturbance report settings...................................................................................................... 61
9.1.3 Disturbance recorder (DR)......................................................................................................... 61
9.1.4 Event recorder (ER) and Event list (EL)................................................................................... 62
9.2 Identifying the function to test in the technical reference manual ...................................... 62
9.3 Differential protection....................................................................................................................62
9.3.1 Line differential protection LT3CPDIF.................................................................................... 62
9.3.1.1 Verifying the settings..............................................................................................................63
9.3.1.2 Completing the test................................................................................................................ 64
9.4 Impedance protection.................................................................................................................... 64
9.4.1 Distance protection zones, quadrilateral and mho characteristic ZMFPDIS.................. 64
9.4.1.1 Measuring the operating limit of set values.......................................................................67
9.4.1.2 Measuring the operating time of distance protection zones.........................................68
9.4.1.3 Completing the test................................................................................................................ 68
9.4.2 Power swing detection ZMRPSB ............................................................................................. 68
9.4.2.1 Verifying the signal and settings..........................................................................................68
9.4.2.2 Completing the test.................................................................................................................74
9.4.3 Automatic switch onto fault logic ZCVPSOF......................................................................... 74
9.4.3.1 Activating ZCVPSOF externally..............................................................................................74
9.4.3.2 Initiating ZCVPSOF automatically and setting mode to impedance.............................75
9.4.3.3 Initiating ZCVPSOF automatically and setting mode to UILevel ...................................75
9.4.3.4 Completing the test.................................................................................................................75
9.5 Current protection...........................................................................................................................75
9.5.1 Instantaneous phase overcurrent protection 3-phase output PHPIOC .......................... 75
9.5.1.1 Measuring the operate limit of set values...........................................................................76
9.5.1.2 Completing the test.................................................................................................................76
9.5.2 Directional phase overcurrent protection, four steps OC4PTOC......................................76
9.5.2.1 Verifying the settings..............................................................................................................76
9.5.2.2 Completing the test.................................................................................................................77
9.5.3 Instantaneous residual overcurrent protection EFPIOC .....................................................77
9.5.3.1 Measuring the operate limit of set values...........................................................................78
9.5.3.2 Completing the test.................................................................................................................78
9.5.4 Four step residual overcurrent protection, (Zero sequence or negative sequence
directionality) EF4PTOC ............................................................................................................78
9.5.4.1 Four step directional earth fault protection.......................................................................78
9.5.4.2 Four step non-directional earth fault protection.............................................................. 79
9.5.4.3 Completing the test.................................................................................................................79
9.5.5 Thermal overload protection, one time constant, Celsius/Fahrenheit
LCPTTR/LFPTTR...........................................................................................................................79
9.5.5.1 Measuring the operate and time limit of set values......................................................... 79
9.5.5.2 Completing the test................................................................................................................ 80
9.5.6 Breaker failure protection, phase segregated activation and output CCRBRF..............80
9.5.6.1 Checking the phase current operate value,
IP>
................................................................. 80
9.5.6.2 Checking the residual (earth fault) current operate value
IN>
set below
IP>
.............. 81
9.5.6.3 Checking the re-trip and back-up times.............................................................................. 81
9.5.6.4 Verifying the re-trip mode...................................................................................................... 81
Table of contents
Line differential protection RED650 3
Commissioning manual
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