Debugging Work Before Transformer Operation

Debugging work before transformer operation

 

(1) Check the transformer ratio and connection group, and measure the DC resistance of the high and low voltage windings, and compare the measurement results with the factory data provided by the manufacturer.
(2) Detect the insulation resistance between the coils and the coil to the ground. If the insulation resistance is significantly lower than the factory measurement data, it may indicate that the transformer is damp. When the insulation resistance drops below 1000Ω/V (operating voltage), the transformer needs to be dried.

 

(3) The voltage of the withstand voltage test should meet the specified requirements. When conducting a low-voltage withstand voltage test, the temperature sensor TP100 needs to be removed and reset in time after the test.
(4) If the transformer is equipped with a fan, its operating status should be tested by powering on to ensure that the fan is working properly.