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Over-current protection relay SEL-387three-phaseprogrammable
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Characteristics
- Measured/monitored value
- over-current
- Network
- three-phase
- Other characteristics
- programmable
Description
Current Differential and Overcurrent Relay
The SEL-387 Current Differential and Overcurrent Relay provides protection, control, and metering for transformers, buses, breakers, and feeders. Features include four three-phase current inputs with independent restrained and unrestrained differential protection, programmable single- or dual-slope differential characteristic, circuit breaker monitor, battery voltage monitor, and enhanced SELogic control equations.
Other Schweitzer Engineering Laboratories products
Substation Protection
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