Because electromagnetic vibration causes vibration welding crack, resulting in leakage

Mainly poor weld quality, there Weld, Desoldering, weld pinholes exist, trachoma and other defects, power transformer factory due to flux and paint coverage will be exposed  electric transformer  risks, in addition to the electromagnetic vibrations cause welding vibration crack, resulting in leakage. For leakage phenomenon has emerged, first  electric meter  leakage points, can not be missed. Severe leakage can be used for parts or sharp punch flat shovel and other metal tools leakage points riveting die, after  Electric energy meter  leakage control surface is clean, the current use of polymer composites curing, curing can achieve long-term leakage control purposes. Seals leaking oil: seal bad reasons, usually along with the lid sealed box is the use of oil and rubber truncheon or rubber gasket seal, if not handled properly it can cause joints oil leakage fault.