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General| Brand | Schweitzer Engineering Laboratories |
|---|---|
| Model | SEL-387E |
| Category | Relays |
| Language | English |
Details the various protection and monitoring functions offered by the SEL-387E Relay.
Lists the detailed technical specifications for the SEL-387E Relay, including electrical and physical characteristics.
Provides instructions for mounting the SEL-387E Relay in rack or panel configurations.
Explains the connection options for wiring the relay rear panel, including terminal blocks and connectorized types.
Describes the application, operating characteristics, and setting descriptions for differential protection.
Explains the REF function for sensitive detection of ground faults in wye-connected transformer windings.
Details the various overcurrent elements, their application, and operating characteristics.
Describes the overvoltage and undervoltage elements for protection, indication, and control functions.
Explains the six levels of under-/overfrequency elements for system frequency measurements.
Covers instantaneous, demand, peak demand, differential, phasor, harmonic, and energy metering functions.
Provides a summary of all available commands, organized by access level.
Provides an overview of the SEL-387E Relay's front-panel interface, including LCD, LEDs, and pushbuttons.
Details the standard 15-, 29-, or 60-cycle event reports and their triggering conditions.
Discusses testing philosophies, methods, tools, and relay features that assist in testing.
Covers testing procedures for metering, overcurrent, differential, and other protection elements.
Provides troubleshooting procedures for common relay issues, including front-panel LEDs and communication problems.
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