What are the inspection tasks for dry-type transformers?

Check for abnormal sounds and vibrations.

Look for signs of local overheating, such as insulation surface tracking and discoloration caused by harmful gas corrosion and carbonization.

Verify if the transformer's air-cooling system is operating correctly.

Ensure that there is no overheating at high and low voltage connections and no leakage or tracking at cable heads.

Monitor the temperature rise of windings, ensuring it does not exceed specified limits based on the insulation material grade used in the transformer.

Inspect support insulators for cracks or signs of discharge.

Check for any loose winding clamps.

Ensure indoor ventilation and core air ducts are free from dust and debris, and there are no signs of rust or corrosion on the core.

LuShan, est. 1975, is a Chinese professional manufacturer specializing in power transformers and reactors for 49 years. Leading products are single-phase transformer, three-phase transformers, DC inductors, AC reactors, filtering reactor, expoxy resin high-voltage transformer and intermediate, high-frequency products. Our transformers and reactors are widely used in 10 application areas: rapid transit, construction machinery, renewable energy, intelligent manufacturing, medical equipment, coal mine explosion prevention , excitation system, vacuum sintering, central air conditioning.

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