ABB REG670 - Back-Up Protection Functions

2.3 Back-up protection functions
IEC 61850 or
function name
ANSI Function description Generator
REG670 (Customized)
REG670 (A20) REG670 (B30)
REG670 (C30)
Current protection
PHPIOC 50 Instantaneous phase overcurrent
protection
0-4 1 2 2
OC4PTOC
51_67
1)
Directional phase overcurrent
protection, four steps
0-6 4 4 4
EFPIOC 50N Instantaneous residual overcurrent
protection
0-2 1 2 2
EF4PTOC 51N
67N
2)
Directional residual overcurrent
protection, four steps
0-6 1 5 5
NS4PTOC 46I2 Four step directional negative
phase sequence overcurrent
protection
0-2
1-C41 2-C42 2-C42
SDEPSDE 67N Sensitive directional residual
overcurrent and power protection
0-2 1-C16 1-C16 1-C16
TRPTTR 49 Thermal overload protection, two
time constants
0-3 1 2 3
CCRBRF 50BF Breaker failure protection 0-4 2 4 4
CCPDSC 52PD Pole discordance protection 0-4 2 4 4
GUPPDUP 37 Directional underpower protection 0-4 2 4 4
GOPPDOP 32 Directional overpower protection 0-4 2 4 4
NS2PTOC 46I2 Negative sequence time
overcurrent protection for
machines
0-2
1 1 1
AEGPVOC 50AE Accidental energizing protection
for synchronous generator
0-2 1 1 1
VRPVOC 51V Voltage restrained overcurrent
protection
0-3 3-C36 3-C36 3-C36
GSPTTR 49S Stator overload protection 0-1 1 1 1
GRPTTR 49R Rotor overload protection 0-1 1-C38 1-C38 1-C38
Voltage protection
UV2PTUV 27 Two step undervoltage protection 0-2 2 2 2
OV2PTOV 59 Two step overvoltage protection 0-2 2 2 2
ROV2PTOV 59N Two step residual overvoltage
protection
0-3 3 3 3
OEXPVPH 24 Overexcitation protection 0-2 1 1 2
Table continues on next page
1MRK 502 071-UEN - Section 2
Application
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062 45
Application manual