High-voltage electrical equipment plugging method with pressure and without power outage

Abstract

The invention relates to a plugging method of high-voltage electrical equipment, in particular to a high-voltage electrical equipment plugging method with pressure and without power outage. The method is characterized in that gap are filled by hitting materials around leakage points of leaked high-voltage electrical equipment (pneumatic or oil-filled equipment); a high frequency air-hammer serves as a caulking tool, the pressure is adjusted and high-frequency hitting frequency is controlled, and the leakage point plugging is realized by using original material of the equipment. According to the method, the original usage of the high-frequency hammer is changed, blockage clearing is replaced by leakage filling, the original operating manner of voltage decreasing, power outage and leakage filling is changed by the high-frequency caulking method, the high-voltage electrical equipment plugging with the pressure and without power outage is realized, equipment power outage is avoided, and the equipment is guaranteed to operate reliably; the gaps are filled by hitting material around the leakage points, addition material is omitted, and the problem of leakage point filling material is solved; material is saved, and repairing risks resulting from welding repair are avoided.

Description

technical field [0001] The invention relates to a leak-stopping method for high-voltage electrical equipment, in particular to a leak-stopping method for high-voltage electrical equipment under pressure without power failure. Background technique [0002] For power supply companies, improving the reliability of power supply to users, ensuring the safe and reliable operation of equipment, and reducing the probability of power outages to users have always been the goals that companies are constantly pursuing. However, because the equipment in operation still has insufficient manufacturing level and technological level, some equipment has problems such as running, popping, dripping, and leaking in the equipment under pressure due to trachoma leakage. The small leakage of the shell of electric live equipment is called "trachoma". The transformer oil or SF6 gas inside the equipment will leak from the sand hole, and the oil storage inside the power equipment is relatively large, a...

AI Technical Summary

Problems solved by technology

For example: a GIS air chamber casing has trachoma leakage. If the trachoma is repaired by conventional operation methods, more than two bottles of SF6 gas will be consumed, and the GIS will be powered off for at least two days at intervals. The project cost is about 50,000 yuan. The power loss caused by the

For a 110kV transformer with trachoma leakage, if conventional operation methods are used to repair the trachoma by electric welding, it will not only affect the appearance of the equipment, but also in the process of electric welding, the transformer oil is easily decomposed by heat, producing acetylene, total hydrocarbons and other gases that affect the judgment of equipment status , and the decomposed gas is not easy to filter out in a short period of time. If it needs to be filtered out, it needs to be treated with charged oil filter, which takes at least three days and costs about 80,000 yuan

If treated under pressure, it may cause re-leakage or abnormal oil chromatography