Voltage transformer installation inspection steps:
1. Check whether the porcelain casing is cracked, whether the edge is rough or damaged, whether the glue between the porcelain pipe and the upper cover is firm, gently pull the casing by hand, and the casing shall not move.
2, check the voltage transformer oil level indicator, should be no blockage and oil leakage phenomenon. The oil level should reach the standard height. If the oil level is too high, greater pressure will be generated in the closed transformer. If the oil level is too low, the transformer will overheat or damage the insulating material. The height of the oil surface is generally 5mm from the oil tank cap 10.
3. Check the outer shell of the voltage transformer for oil leakage. If such phenomenon is found, lift the iron core out and repair the oil after it is released. Turn the valve on the oil tank by hand. The valve should rotate flexibly.
voltage transformer:
Voltage transformer is generally installed directly on the concrete pier, and the concrete pier shall have a certain strength before installation. Voltage transformers are sometimes installed in a complete set of switchgear. Only the wiring needs to be checked for this kind of voltage transformer. Attention should be paid to: when handling the voltage transformer, its inclination angle should not exceed 15 degrees to avoid internal insulation damage; The busbar connected to the bushing should not be pulled to avoid damage to the bushing. The casing of the voltage transformer must be properly grounded. In addition, the voltage transformer must be connected to the test before it can be put into operation.
