Physics · Electrical Machines - Transformer Protection

Which of the following methods is commonly used to protect large power transformers from overheating?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1Installation of isolators on the low-voltage side only
2Placement of thermocouples or Resistance Temperature Detectors (RTDs) near transformer windings✓
3Periodic manual inspection of winding temperature
4Installation of circuit breakers on the low-voltage side only

Correct answer

Placement of thermocouples or Resistance Temperature Detectors (RTDs) near transformer windings

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