SEL-387 Current Differential & Overcurrent Relay | SEL - VOLTFORMER
SEL Transformer differential (up to 4 restraint inputs), restricted earth fault, thermal overload and breaker failure protection for utility substations
SEL-387 Current Differential & Overcurrent Relay
Transformer differential (up to 4 restraint inputs), restricted earth fault, thermal overload and breaker failure protection for utility substations
SEL-387 Current Differential & Overcurrent Relay
SEL
- ANSI functions
- 87T, REF/87N, 49, 50/51, 50N/51N, 50BF
- IEC 61850 edition
- Ed1
- Protocols
- DNP3, Modbus, SEL Fast Meter, Mirrored Bits
- Standards
- IEC 60255, IEEE C37.90