Relay Lowers Costs While Replacing Older Schemes

Jan. 24, 2000
According to its manufacturer, the SEL-351S Protection and Breaker Control Relay lowers operating costs and increases automation capabilities by replacing older electromechanical relay schemes, control switches, and metering devices in outdoor...

According to its manufacturer, the SEL-351S Protection and Breaker Control Relay lowers operating costs and increases automation capabilities by replacing older electromechanical relay schemes, control switches, and metering devices in outdoor breaker-control enclosures. It also provides a sensitive, secure combination of phase, negative-sequence, residual-ground, and neutral-ground overcurrent elements (including directional control), and programmable US and IEC time-current curves for complete distribution system protection. A large front-panel keyboard with local display panel and programmable operator-control interface pushbuttons replaces unnecessary control switches, indicating lamps, and wiring at the breaker-control panel. Power elements, voltage sag, swell, and interruption records are optional. The SEL-351S is available now. Pricing depends on model options and quantity ordered. For further information, contact the manufacturer.

Schweitzer Engineering Laboratories, 2350 N.E. Hopkins Ct., Pullman, WA 99163-5603; (509) 332-1890; fax (509) 332-7990; www.selinc.com.

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