ABB RED650, Technical Manual, Page: 48 / 926

2.2 Back-up protection functions
GUID-A8D0852F-807F-4442-8730-E44808E194F0 v13
IEC 61850 or
function name
ANSI Function description Line Differential
RED650 (A11)
Current protection
PHPIOC 50 Instantaneous phase overcurrent protection 1
OC4PTOC
51_67
1)
Directional phase overcurrent protection, four steps 1
EFPIOC 50N Instantaneous residual overcurrent protection 1
EF4PTOC 51N
67N
2)
Directional residual overcurrent protection, four steps 1
LCPTTR 26 Thermal overload protection, one time constant, Celsius 1
LFPTTR 26 Thermal overload protection, one time constant, Fahrenheit 1
CCRBRF 50BF Breaker failure protection 1
CCPDSC 52PD Pole discordance protection 1
Voltage protection
UV2PTUV 27 Two step undervoltage protection 1
OV2PTOV 59 Two step overvoltage protection 1
ROV2PTOV 59N Two step residual overvoltage protection 1
Frequency protection
SAPTUF 81 Underfrequency protection 1
SAPTOF 81 Overfrequency protection 1
SAPFRC 81 Rate-of-change of frequency protection 1
1) 67 requires voltage
2) 67N requires voltage
2.3 Control and monitoring functions
GUID-E3777F16-0B76-4157-A3BF-0B6B978863DE v15
IEC 61850 or
function name
ANSI Function description Line differential
RED650 (A11)
Control
SESRSYN 25 Synchrocheck, energizing check and synchronizing 1
SMBRREC 79 Autorecloser 1
QCBAY Bay control 1
LOCREM Handling of LR-switch positions 1
LOCREMCTRL LHMI control of PSTO 1
Table continues on next page
Section 2
1MRK 505 394-UEN A
Available functions
42 Line differential protection RED650 2.2 IEC
Technical manual