1MRK 502 048-UUS A
Section 2
2.1
IEC 61850 or
ANSI
Function description
Function name
Differential protection
T3WPDIF
87T
REFPDIF
87N
HZPDIF
87
GENPDIF
87G
Impedance protection
ZMRPSB
68
ZGCPDIS
21G
LEXPDIS
40
LEPDIS
2.2
IEC 61850 or
ANSI
Function name
Current protection
OC4PTOC
51/67
EF4PTOC
51N/67N
SDEPSDE
67N
Table continues on next page
Technical manual
Available functions
Main protection functions
Transformer differential protection, three winding
Restricted earth fault protection, low impedance
1Ph High impedance differential protection
Generator differential protection
Power swing detection
Underimpedance protection for generators and transformers
Loss of excitation
Load encroachment
Back-up protection functions
Function description
Four step phase overcurrent protection, 3-phase output
Four step residual overcurrent protection, zero/negative
sequence direction
Sensitive directional residual overcurrent and power protection
Section 2
Available functions
Generator
0–1
0–1
0–1
1
0–1
1
0–1
0–1
1
0–1
1
0–1
1
Generator
0–2
2
2
0–2
2
2
0–1
1
1
1
1
1
1
1
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