IEC 61850 or
function name
ANSI Function description Bay control
REC670 (Customized)
Differential protection
HZPDIF 87 High impedance differential protection, single phase 0-6
2.3 Back-up protection functions
GUID-A8D0852F-807F-4442-8730-E44808E194F0 v13
IEC 61850 or
function name
ANSI Function description
REC670 (Customized)
Current protection
PHPIOC 50 Instantaneous phase overcurrent protection 0-6
OC4PTOC
51_67
1)
Directional phase overcurrent protection, four steps 0-6
EFPIOC 50N Instantaneous residual overcurrent protection 0-6
EF4PTOC 51N
67N
2)
Directional residual overcurrent protection, four steps 0-6
NS4PTOC 46I2 Four step directional negative phase sequence overcurrent
protection
0-6
SDEPSDE 67N Sensitive directional residual overcurrent and power protection 0-6
LCPTTR 26 Thermal overload protection, one time constant, Celsius 0-6
LFPTTR 26 Thermal overload protection, one time constant, Fahrenheit 0-6
TRPTTR 49 Thermal overload protection, two time constants 0-6
CCRBRF 50BF Breaker failure protection 0-6
STBPTOC 50STB Stub protection 0-6
CCPDSC 52PD Pole discordance protection 0-6
GUPPDUP 37 Directional underpower protection 0-2
GOPPDOP 32 Directional overpower protection 0-2
BRCPTOC 46 Broken conductor check 0-1
CBPGAPC Capacitor bank protection 0-3
VRPVOC 51V Voltage restrained overcurrent protection 0-3
Voltage protection
UV2PTUV 27 Two step undervoltage protection 0-2
Table continues on next page
1MRK 511 401-UUS A Section 2
Application
Bay control REC670 2.2 ANSI 39
Application manual