Oil-immersed transformer overhaul and small maintains  What is a transformer? Transformer is a transmission and distribution system in an extremely important electrical equipment, but for various reasons, sometimes in operation will break down. According to the nature of maintenance work, transformer maintenance is divided into overhaul and repair. Oil-immersed transformer: any need to drain the oil lifting core (or lifting open bell) for overhaul is called overhaul; if you don’t need to drain the oil, not lifting core (lifting open bell), only in the external overhaul or make up the oil, oil treatment is called minor repair. Conventional transformer overhaul process 1 Clean the casing, check the porcelain sleeve has no discharge marks and damage phenomenon. 2 Check whether the top fastening bolt of casing

Xidian Western Transform’s 330kV Booster Station Main Transformer of Azerbaijan Put into Operation