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Reply To: Grounding Riddle No.36 – Grounding Transformers

2021-08-03 at 11:08 am #3008
Hamid

    Ok, it seems the mentioned zero sequence current is grounding transformer no load current and must not mistake with fault zero sequence current. Indeed you can write: 1244 = 3R0.(266.7/2)2 R0=0.023 Ohm