Electrical Engineering · Transformer Maintenance
Which of the following maintenance activities is generally required once every two years for a power transformer?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Calibration of the Oil Temperature Indicator (OTI) and Winding Temperature Indicator (WTI)✓
- 2Checking for oil leakage from any point of the transformer
- 3Reading the Magnetic Oil Gauge (MOG) of the main tank
- 4Checking the color of silica gel in the breather
Correct answer
Calibration of the Oil Temperature Indicator (OTI) and Winding Temperature Indicator (WTI)
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