Back-Up Protection Functions - ABB Relion 670 Series Applications Manual

1MRK 511 401-UUS F
2.3

Back-up protection functions

IEC 61850 or ANSI
function name
Current protection
PHPIOC 50
OC4PTOC
1)
51_67
EFPIOC 50N
EF4PTOC 51N
2)
67N
NS4PTOC 46I2
SDEPSDE 67N
LCPTTR 26
LFPTTR 26
TRPTTR 49
CCRBRF 50BF
STBPTOC 50STB
CCPDSC 52PD
GUPPDUP 37
GOPPDOP 32
BRCPTOC 46
CBPGAPC
VRPVOC 51V
Voltage protection
UV2PTUV 27
OV2PTOV 59
ROV2PTOV 59N
VDCPTOV 60
LOVPTUV 27
Frequency protection
SAPTUF 81
SAPTOF 81
SAPFRC 81
Table continues on next page
Bay control REC670
Application manual
Function description
Instantaneous phase overcurrent protection
Directional phase overcurrent protection, four steps
Instantaneous residual overcurrent protection
Directional residual overcurrent protection, four steps
Four step directional negative phase sequence overcurrent
protection
Sensitive directional residual overcurrent and power
protection
Thermal overload protection, one time constant, Celsius
Thermal overload protection, one time constant, Fahrenheit
Thermal overload protection, two time constants
Breaker failure protection
Stub protection
Pole discordance protection
Directional underpower protection
Directional overpower protection
Broken conductor check
Capacitor bank protection
Voltage restrained overcurrent protection
Two step undervoltage protection
Two step overvoltage protection
Two step residual overvoltage protection
Voltage differential protection
Loss of voltage check
Underfrequency protection
Overfrequency protection
Rate-of-change of frequency protection
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GUID-A8D0852F-807F-4442-8730-E44808E194F0 v15
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Section 2
Application
35