ABB RET615 - Functions, Codes and Symbols

27. Functions, codes and symbols
Table 68. RET615 functions, codes and symbols
Function IEC 61850 IEC 60617 IEC-ANSI
Protection
Three-phase non-directional overcurrent protection, low
stage
PHLPTOC1 3I> (1) 51P-1 (1)
PHLPTOC2 3I> (2) 51P-1 (2)
Three-phase non-directional overcurrent protection,
high stage
PHHPTOC1 3I>> (1) 51P-2 (1)
PHHPTOC2 3I>> (2) 51P-2 (2)
Three-phase non-directional overcurrent protection,
instantaneous stage
PHIPTOC1 3I>>> (1) 50P/51P (1)
PHIPTOC2 3I>>> (2) 50P/51P (2)
Non-directional earth-fault protection, low stage EFLPTOC1 Io> (1) 51N-1 (1)
EFLPTOC2 Io> (2) 51N-1 (2)
Non-directional earth-fault protection, high stage EFHPTOC1 Io>> (1) 51N-2 (1)
EFHPTOC2 Io>> (2) 51N-2 (2)
Negative-sequence overcurrent protection NSPTOC1 I2> (1) 46 (1)
NSPTOC2 I2> (2) 46 (2)
Residual overvoltage protection ROVPTOV1 Uo> (1) 59G (1)
ROVPTOV2 Uo> (2) 59G (2)
Three-phase undervoltage protection PHPTUV1 3U< (1) 27 (1)
PHPTUV2 3U< (2) 27 (2)
Three-phase overvoltage protection PHPTOV1 3U> (1) 59 (1)
PHPTOV2 3U> (2) 59 (2)
Three-phase thermal overload protection for power
transformers, two time constants
T2PTTR1 3Ith>T 49T
Stabilized and instantaneous differential protection for
2W transformers
TR2PTDF1 3dI>T 87T
Numerical stabilized low impedance restricted earth-
fault protection
LREFPNDF1 dIoLo> 87NL
High impedance based restricted earth-fault protection HREFPDIF1 dIoHi> 87NH
Circuit breaker failure protection CCBRBRF1 3I>/Io>BF 51BF/51NBF
Master trip TRPPTRC1 Master Trip (1) 94/86 (1)
TRPPTRC2 Master Trip (2) 94/86 (2)
Arc protection ARCSARC1 ARC (1) 50L/50NL (1)
ARCSARC2 ARC (2) 50L/50NL (2)
ARCSARC3 ARC (3) 50L/50NL (3)
Transformer Protection and Control 1MRS756891 F
RET615
Product version: 4.0
62 ABB