3. Available functions
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
OOSPPAM
78
Out-of-step protection
0–1
1
1
LEPDIS
Load encroachment
0–1
1
1
Generator protection REG650
1MRK 502 050-BEN B
Product version: 1.3
6
ABB
Содержание REG650 ANSI
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