Physics · Electrical Protection
Malfunctioning of the Buchholz relay in a power transformer may be caused by:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1excessive overheating of the transformer.
- 2improper breathing action.
- 3heavy external short circuit.
- 4dropping of the oil level below the relay level due to leakage during operation.✓
Correct answer
dropping of the oil level below the relay level due to leakage during operation.
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