1.4.3 Functions, codes and symbols
Table 1: 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 overcur-
rent
RCRWPSCH CLCRWN 85 67G/N
CREV,WEI
Power swing detection DSTRPSB Zpsb 68
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, instanta-
neous 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>> 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>-> 21YN
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
Touch voltage based earth-fault current protection IFPTOC IF>/UT> 46SNQ/59N
Negative-sequence overcurrent protection NSPTOC I2>M 46M
Table continues on the next page
Introduction 1MRS759142 F
34 REX640
Technical Manual