Physics · Electrical Machines
The zero-sequence impedance of a three-phase transformer mainly depends on:
- 1Operating frequency and load current.
- 2Core losses and magnetising reactance.
- 3The type of winding connection (star or delta) and its grounding conditions.✓
- 4The transformer's voltage rating only.
Correct answer
The type of winding connection (star or delta) and its grounding conditions.
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