31. Functions, codes and symbols
Table 233. Functions included in the relay
Function IEC 61850 IEC 60617 ANSI
Protection
Distance protection DSTPDIS Z< 21P,21N
Local acceleration logic DSTPLAL LAL 21LAL
Scheme communication logic DSOCPSCH CL 85 21SCHLGC
Current reversal and weak-end infeed logic CRWPSCH CLCRW 85 21CREV,WEI
Communication logic for residual overcurrent RESCPSCH CLN 85 67G/N SCHLGC
Current reversal and weak-end infeed logic for residual
overcurrent
RCRWPSCH CLCRWN 85 67G/N CREV,WEI
Line differential protection with inzone power
transformer
LNPLDF 3Id/I> 87L
Binary signal transfer BSTGAPC BST BST
Switch-onto-fault protection CVPSOF CVPSOF SOTF
Three-phase non-directional overcurrent protection,
low stage
PHLPTOC 3I> 51P-1
Three-phase non-directional overcurrent protection,
high stage
PHHPTOC 3I>> 51P-2
Three-phase non-directional overcurrent protection,
instantaneous stage
PHIPTOC 3I>>> 50P
Three-phase directional overcurrent protection, low
stage
DPHLPDOC 3I> -> 67P/51P-1
Three-phase directional overcurrent protection, high
stage
DPHHPDOC 3I>> -> 67P/51P-2
Non-directional earth-fault protection, low stage EFLPTOC Io> 51G/51N-1
Non-directional earth-fault protection, high stage EFHPTOC Io>> 51G/51N-2
Non-directional earth-fault protection, instantaneous
stage
EFIPTOC Io>>> 50G/50N
Directional earth-fault protection, low stage DEFLPDEF Io> -> 67G/N-1 51G/N-1
Directional earth-fault protection, high stage DEFHPDEF Io>> -> 67G/N-1 51G/N-2
Three-phase power directional element DPSRDIR I1 -> 67P-TC
Neutral power directional element DNZSRDIR I2 ->, Io -> 67N-TC
Admittance-based earth-fault protection EFPADM Yo> -> 21NY
Multifrequency admittance-based earth-fault
protection
MFADPSDE Io> -> Y 67NYH
Wattmetric-based earth-fault protection WPWDE Po> -> 32N
Transient/intermittent earth-fault protection INTRPTEF Io> -> IEF 67NTEF/NIEF
Harmonics-based earth-fault protection HAEFPTOC Io>HA 51NH
Negative-sequence overcurrent protection NSPTOC I2>M 46M
Phase discontinuity protection PDNSPTOC I2/I1> 46PD
Residual overvoltage protection ROVPTOV Uo> 59G/59N
Three-phase undervoltage protection PHPTUV 3U< 27
1MRS759144 A