ABB Relion REQ650, Applications Manual

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2.2 Available functions
2.2.1 Back-up protection functions
IEC 61850 or
Function name
ANSI Function description Breaker
REQ650
REQ650 (A01) 3Ph/1CB/1BB REQ650 (A11) 1Ph/1CB/1BB REQ650 (B11) 1Ph/1CB/2BB
Current protection
PHPIOC 50 Instantaneous phase overcurrent protection, 3–
phase output
0–1 1
SPTPIOC 50 Instantaneous phase overcurrent protection,
phase segregated output
0–1 1 1
OC4PTOC 51/67 Four step phase overcurrent protection, 3-phase
output
0–1 1
OC4SPTOC 51/67 Four step phase overcurrent protection, phase
segregated output
0–1 1 1
EFPIOC 50N Instantaneous residual overcurrent protection 0–1 1 1 1
EF4PTOC 51N/67N Four step residual overcurrent protection, zero/
negative sequence direction
0–1 1 1 1
SDEPSDE 67N Sensitive directional residual overcurrent and
power protection
0–1 1 1 1
LCPTTR 26 Thermal overload protection, one time constant,
Celsius
0–1 1 1 1
LFPTTR 26 Thermal overload protection, one time constant,
Fahrenheit
0–1 1 1 1
CCRBRF 50BF Breaker failure protection, 3–phase activation and
output
0–1 1
CSPRBRF 50BF Breaker failure protection, phase segregated
activation and output
0–1 1 1
STBPTOC 50STB Stub protection 0–1 1 1 1
CCRPLD 52PD Pole discordance protection 0–1 1 1 1
BRCPTOC 46 Broken conductor check 0–1 1 1 1
GUPPDUP 37 Directional underpower protection 0–1 1 1 1
GOPPDOP 32 Directional overpower protection 0–1 1 1 1
DNSPTOC 46 Negative sequence based overcurrent function 0–1 1 1 1
Voltage protection
UV2PTUV 27 Two step undervoltage protection 0–1 1 1 1
OV2PTOV 59 Two step overvoltage protection 0–1 1 1 1
ROV2PTOV 59N Two step residual overvoltage protection 0–1 1 1 1
LOVPTUV 27 Loss of voltage check 0–1 1 1 1
Frequency protection
Table continues on next page
1MRK 505 291-UEN A
Section 2
Application
25
Application manual