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Recent content by Pad82

  1. Pad82

    High Fault Currents, Low Ratio CTs

    Loads are sub distribution boards. Thanks for your help Slava!
  2. Pad82

    High Fault Currents, Low Ratio CTs

    The CT would be rated for 5VA burden, the distance between the CT and relay would be 3M 2.5mm^2, the relay would have max burden of 0.1VA. The minimum expected fault current is 14kA >750A. For this fault will the relay operate when the CT saturates, considering the Instantaneous protection is...
  3. Pad82

    High Fault Currents, Low Ratio CTs

    I have read from several different sources the severe implications that can result from the selection of protection CTs based on full load current rather than prospective fault currents. my question is as follows: A feeder circuit breaker with associated relay and protection CT (75/1A, 10P20)...

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