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Back-up protection functions

GUID-A8D0852F-807F-4442-8730-E44808E194F0 v13

IEC 61850 or

function name

ANSI Function description Line Distance

REL650 (A11) REL650 (A12)

Current protection

PHPIOC 50 Instantaneous phase overcurrent protection 1 1

OC4PTOC

51_67

Directional phase overcurrent protection, four steps 1 1

EFPIOC 50N Instantaneous residual overcurrent protection 1 1

EF4PTOC 51N

67N

Directional residual overcurrent protection, four steps 1 1

NS4PTOC 46I2 Four step directional negative phase sequence overcurrent

protection

1 1

SDEPSDE 67N Sensitive directional residual overcurrent and power protection 1

LCPTTR 26 Thermal overload protection, one time constant, Celsius 1 1

LFPTTR 26 Thermal overload protection, one time constant, Fahrenheit 1 1

CCRBRF 50BF Breaker failure protection 1 1

CCPDSC 52PD Pole discordance protection 1 1

VRPVOC 51V Voltage restrained overcurrent protection 1

Voltage protection

UV2PTUV 27 Two step undervoltage protection 1 1

OV2PTOV 59 Two step overvoltage protection 1 1

ROV2PTOV 59N Two step residual overvoltage protection 1 1

Frequency protection

SAPTUF 81 Underfrequency protection 1 1

SAPTOF 81 Overfrequency protection 1 1

SAPFRC 81 Rate-of-change of frequency protection 1 1

1) 67 requires voltage

2) 67N requires voltage

1MRK 506 384-BEN A

Line distance protection REL650 2.2

Product version: 2.2.1

8 ABB

ABB REL650 Product Guide

Other manuals for ABB REL650