Current Protection; Overview; Breaker Failure Protection Ccrbrf; Broken Conductor Check Brcptoc - ABB REC670 Operator's Manual

Section 9
Read and change settings
9.3.3
9.3.3.1
9.3.3.2
9.3.3.3
9.3.3.4
9.3.3.5
9.3.3.6
54

Current protection

Overview

Under Current protection there are settings for Instantaneous phase overcurrent,
Phase overcurrent four step, Instantaneous residual overcurrent, Residual
overcurrent four step, Thermal overload with one time constant, Thermal overload
with two time constants, Stub protection, Pole discordance and Breaker failure.
There are several instances of each function with parameter settings for rated data,
operation and many others. The thermal overload functions have temperature
threshold settings as well as many others necessary for adapting the function to a
particular application.

Breaker failure protection CCRBRF

Main menu/Settings/Setting Group N/Current protection/
BreakerFailure(RBRF,50BF)/BFP
Displays some instances of CCRBRF with several settings per instance. Settings
include operation, base current, function mode, operation mode of retrip logic, time
delays and several others.

Broken conductor check BRCPTOC

Main menu/Settings/Setting Group N/Current protection/
BrokenCondCheck(PTOC,46)/BRC
Includes current and timer settings.

Directional over-power protection GOPPDOP

Main menu/Settings/Setting Group N/Current protection/
DirOverPowerProtection(PDOP,32)/GOP
Includes power, angle and calibration factor settings.

Directional under-power protection GUPPDUP

Main menu/Settings/Setting Group N/Current protection/
DirUnderPowerProtection(PDUP,37)/GUP
Includes power, angle and calibration factor settings.

Instantaneous phase overcurrent protection PHPIOC

Main menu/Settings/Setting Group N/Current protection/
InstPhaseOvercurrent(PIOC,50)/IOC
1MRK 511 188-UEN C
Operator's manual