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Because Everyone Needs Safe, Reliable, Economical Electric Power
Schweitzer Engineering Laboratories invented the world’s first digital distance relay 25 years ago, improving how the power system provided you with electric power. Today, we offer a complete range of solutions for virtually any electric power system used in utilities, industry, and commerce. SEL innovations help solve today’s power system challenges, from integrating renewable energy resources to finding economical ways of improving reliability and efficiency. Our mission is simple—make electric power safer, more reliable, and more economical.
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