Table of contents
2
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
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
phase output OC4PTOC 51_67.........................................................66
Calculating general settings......................................................... 67
Calculating settings for four step residual overcurrent protection,
zero or negative sequence direction EF4PTOC(51N_67N)...............70
Calculating settings for step 1...................................................... 72
Calculating settings for step 2...................................................... 73
Calculating settings for scheme communication for residual
overcurrent protection ECPSCH (85)................................................ 74
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 sensitive directional residual overcurrent
protection SDEPSDE 67N................................................................. 85
Application manual