Physics · Transformers
What does the Dissolved Gas Analysis (DGA) test on transformer oil primarily evaluate?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Primary to secondary turns ratio
- 2High-voltage insulation resistance
- 3Winding copper resistance
- 4Oil quality and internal fault development✓
Correct answer
Oil quality and internal fault development
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