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Arc-Flash Detection Relay From SEL
Arc-flash detection (AFD) capability in the SEL-751A Feeder Protection Relay, from SEL, provides fully automatic protection against dangerous arc-flash events. Without AFD, the arc flash can cause severe personal injury, extensive equipment damage, and lengthy system outages. The SEL-751A AFD solution uses fiber-optic, arc-flash light sensors to detect the light produced by an arc-flash event. To prevent false tripping, the SEL-751A looks for an overcurrent that coincides with the light flash. When both conditions are met, the SEL-751A sends a trip signal to the circuit breaker in as fast as 2 ms.
Company Information
Phone: 1-509/332-1890
Fax: 1-509/332-7990
email: info@selinc.com
Website: www.selinc.com/Arc-Flash/
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