Transformer operation which should be regular inspections and maintenance work

Transformer in normal operation and maintenance inspections are carried out is the discovery of faulty equipment to ensure the safe operation of the key approaches is to prevent accidents and expansion of effective measures. Inspection and maintenance of the main items are:
(1) the sound are normal. Normal operation, the transformer even given a slight hum. If the sound high and uneven, and even burst the sound may be occurring inside the transformer discharge so chun. Should be immediately stopped to repair.
(2) The oil level and oil color are normal. After a long journey transformers, transformer oil preserves normal color was red, or black, if the oil color deepened, indicating oil quality has been bad; if the oil level below the target limit, indicating there is leakage. At this point should be a timely manner. Should pay attention to the oil level above the vent blocking the table would create false oil level.
(3) temperature are normal.
(4) The transformer insulating sleeve is clean, with or without damage, cracks and discharge traces.
(5) The transformer grounding device is good. If it is found loose joints, rust, broken playing time stock status and other museum repaired.
(6) Oil pillow set period of availability of water pollution and debris. Regularly open set of sewage pollution device placed on the screws, the release of sewage and other items.
(7) High and low voltage fuse is intact. If the fuse blew to analyze the cause of the accident, only after troubleshooting for access fuse. It should be noted, for then when you must use insulated high-voltage fuse sticks, can not be a direct hand in order to avoid personal accident.
(8) transformer in the vicinity if there is firewood pile of flammable debris, if housing construction will not prevent safe operation of the transformer stage whether there are obstacles.
(9) once a year insulation resistance, grounding resistance measurement and transformer oil testing.