Companies / S / Schweitzer Engineering Laboratories (SEL)
Schweitzer Engineering Laboratories (SEL)
Supplier · Pullman, WA
About Schweitzer Engineering Laboratories (SEL)
Private employee-owned manufacturer of power system protection, automation, and control equipment, founded 1982 in Pullman, WA, with 7,000+ employees and products deployed in 170+ countries, best known for shipping the world's first digital protective relay. Protective relays, digital relays, protection and control systems, automation controllers, power system meters, phasor measurement units (PMUs), synchrophasors, GPS clocks, satellite clocks, timing receivers, network time protocol (NTP) servers, PTP clocks, SCADA systems, RTUs, industrial Ethernet switches, serial communications equipment, arc flash detection systems, electrical enclosures, power management systems
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