How to deal with embrittlement of power transformer?

Power transformers for power stations and substations, can not be lacking, but we must pay attention to many problems in the whole process of the application of power transformers. Below we will come together to understand how to maintain the power transformer.

1, oil sample test – pressure resistance, residue and other performance parameters are carried out once every three years, the transformer long-term overload or over-loading author can reduce the cycle time.

②, the high and bottom pressure grounding resistance is not less than 70% of the original factory value (10MΩ), the resistance measurement of the winding at the same temperature, the difference between the three-phase mean value should not exceed 2%, and the result of the last accurate measurement should not exceed 2%.

(3) The resistance value of the ground wire in the work of the transformer is accurately measured every two years.

(4) The cycle time of power failure cleaning and inspection is clear according to the surrounding environment and load conditions, generally half a year to once a year;

The specific contents include eliminating the shortcomings found in the inspection, cleaning the porcelain waterproof casing, removing or replacing the cracked or emaciated leather pad, checking and tightening of the node, oil deficiency and oil replacement, and silica gel inspection and replacement of the breathing mask.