Return to List

What are the special inspection items for transformers?

2022-04-25

What are the special inspection items for transformers?

(1) Check for any loose debris near the transformer during strong winds to prevent it from being blown onto live parts, and pay attention to the swinging of the leads;

(2) Check for flashover or discharge phenomena on insulators during foggy days;

(3) Check for snow accumulation or icicles between the transformer top cover and the insulator connection on snowy days, and check if the oil level gauge, thermometer, and gas relay are covered with snow;

(4) After a thunderstorm, check the operation of the lightning arrester counters on each side of the transformer, and inspect the insulators for any damage, cracks, or discharge marks.

(5) During sudden temperature changes, check for changes in oil level and oil temperature.