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  • Users: Pup7
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  1. Pup7

    Power Transformers

    We have two 6KV XFR that feed two individual 380V MCCs with an ATS that closes the Tie brkr between them whenever one of the XFR feeders fail. Last night one of the XFR feeders tripped on over current and we found the XFR that tripped is pulling five times (300amps) on the primary side then the...
  2. Pup7

    Control Transformer circuit

    How can I explain what actually happens when opening a CT circuit under load, which generates excessive high current and high transient voltages.

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