ABB REG650 User Manual

Section 2 Available functions
2.1 Main protection functions
IEC 61850 or
Function name
ANSI Function description Generator
REG650
REG650 (B01)
Gen diff
REG650 (B05)
Gen+Trafo diff
Differential protection
T3WPDIF 87T Transformer differential protection, three winding 0–1 1
REFPDIF 87N Restricted earth fault protection, low impedance 0–1
HZPDIF 87 1Ph High impedance differential protection 0–1 1 1
GENPDIF 87G Generator differential protection 0–1 1
Impedance protection
ZMRPSB 68 Power swing detection 0–1
ZGCPDIS 21G Underimpedance protection for generators and transformers 0–1 1 1
LEXPDIS 40 Loss of excitation 0–1 1 1
LEPDIS Load encroachment 0–1 1 1
2.2 Back-up protection functions
IEC 61850 or
Function name
ANSI Function description Generator
REG650
REG650 (B01) Gen diff REG650 (B05) Gen+Trafo diff
Current protection
OC4PTOC 51/67 Four step phase overcurrent protection, 3-phase output 0–2 2 2
EF4PTOC 51N/67N Four step residual overcurrent protection, zero/negative
sequence direction
0–2 2 2
SDEPSDE 67N Sensitive directional residual overcurrent and power
protection
0–1 1 1
TRPTTR 49 Thermal overload protection, two time constants 0–2 2 2
CCRBRF 50BF Breaker failure protection, 3–phase activation and output 0–1 1 1
CCRPLD 52PD Pole discordance protection 0–1 1 1
Table continues on next page
1MRK 502 048-UEN A Section 2
Available functions
37
Technical manual

ABB REG650 Specifications

General

Brand	ABB
Model	REG650
Category	Protection Device
Language	English