The Zero-sequence current can flow from a line to the transformer bank if the windings are in – Power System Protection MCQ#20

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The Zero-sequence current can flow from a line to the transformer bank if the windings are in:

  1. Delta/Star
  2. Delta/Delta
  3. Star/Grounded star
  4. Grounded Star/Delta

Correct answer: 4. Grounded Star/Delta

The Zero-sequence current can flow from a line to the transformer bank if the windings are in Grounded Star/Delta configuration

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