ABB REL650 series, Applications Manual

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Calculating settings for phase selection with load encroachment
FDPSPDIS (21)................................................................................. 55
Faulty phase identification with load encroachment for mho
FMPSPDIS........................................................................................ 57
Calculating settings for scheme communication logic with delta
based blocking scheme signal transmit ZCPSCH (85)......................57
Principles for over-reach permissive communication logic...........58
Principles for under-reach permissive communication logic.........59
Principle for blocking scheme.......................................................60
Principle for delta blocking scheme..............................................62
Calculating setting for current reversal and weak end infeed logic
for distance protection ZCRWPSCH (85).......................................... 64
Calculating setting for switch into fault logic voltage and current
based ZCVPSOF...............................................................................65
Calculating settings for four step phase overcurrent protection 3-
phase output OC4PTOC 51_67.........................................................66
Calculating general settings......................................................... 67
Calculating settings for step 1...................................................... 68
Calculating settings for step 2...................................................... 68
Calculating settings for step 3...................................................... 69
Calculating settings for four step residual overcurrent protection,
zero or negative sequence direction EF4PTOC(51N_67N)...............70
Calculating general settings......................................................... 72
Calculating settings for step 1...................................................... 72
Calculating settings for step 2...................................................... 73
Calculating settings for step 4...................................................... 74
Calculating settings for scheme communication for residual
overcurrent protection ECPSCH (85)................................................ 74
Over-reach permissive logic ........................................................75
Under-reach permissive logic ......................................................76
Blocking scheme.......................................................................... 78
Calculating settings for current reversal and weak-end infeed
logic for residual overcurrent protection ECRWPSCH (85)............... 79
Calculating settings for breaker failure protection 3-phase
activation and output CCRBRF (50BF)............................................. 81
Setting example for a two-ended over-head transmission line in a
high impedance network.........................................................................82
Calculating settings for phase preference logic PPLPHIZ.................83
Calculating settings for sensitive directional residual overcurrent
protection SDEPSDE 67N................................................................. 85
Section 4 Analog inputs.......................................................................89
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