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arc flash hazards Applications

  • Trapped Key Interlocks for Substation Switchgear

    Trapped key interlocks have a number of functions in substation switchgear applications. For example, preventing the paralleling of two energy sources, preventing particular operations until a breaker is locked open or closed, preventing disconnecting of breakers under load, and minimizing the possibility of a hazardous arc flash. These are often part of a larger trapped key interlock system.

    By Kirk Key Interlock Company based in North Canton, OHIO (USA).

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