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  • Users: Pepwa33
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  1. Pepwa33

    Ungrounded Single Wye Cap Bank with Neutral VT

    Hi there, I have a 132/33kV Dyn Transformer (transformer neutral earthed via NER) supplying an Ungrounded Single Wye 8MVAr Cap Bank with a neutral VT (and various other feeders). The Ungrounded Cap Bank has a neutral VT for neutral overvoltage (59N) protection. I was hoping someone could help...
  2. Pepwa33

    High Impedance Bus Zone Protection understanding

    Hi there, I feel that I have a good grasp of the high impedance bus zone concept, however I am battling to understand one part of this. Why do we assume the worst case is for an external fault where the CT closest to the fault saturates? I understand why this CT saturates, as it will see the...

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