LECTURE FOR OPERATION AND MAINTENANCE OF POWER TRANSFORMER
5Operation of power transformers involves such processes as external inspection, measuring oil temperature and load, phasing, oil testing, corrective and preventive maintenance, overhauls etc.
Inspection is performed once every six months. It includes checking the level of oil, checking for leaks and inspecting insulators.
Each transformer should be equipped with a thermometer measuring the temperature of the insulation liquid. This parameter should also be recorded into a special logbook.
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