Method for disassembling oil-immersed upright current transformer and checking defects of oil-immersed upright current transformer

Abstract

The invention provides and standardizes disassembling steps and a defect checking method of the oil-immersed upright current transformer. According to the invention, on the basis of carding defect information and carrying out a diagnosis test, disassembling and troubleshooting analysis are carried out step by step by virtue of structural characteristics of the oil-immersed upright current transformer. A sample taken in the disassembling process is subjected to microscopic detection, material performance detection and the like, the defect troubleshooting process is perfected, and defect cause speculation and diagnosis are better facilitated. According to the disassembling method, the cumbersome oil-immersed upright current transformer can be rapidly disassembled, the disassembling efficiency is improved, and the risk of unsuccessful troubleshooting or unsmooth troubleshooting caused by improper disassembling is avoided; the practical production problem is solved, and the defect troubleshooting experience is accumulated. The implementation steps of the method are clear, the technical guidance is stronger, and the method is easier to grasp by technicians. Therefore, the method has technical guidance value for standardized oil-immersed upright current transformer disassembly and defect troubleshooting work.

Description

technical field [0001] The invention belongs to the field of electrical engineering, and relates to a method for dismantling an oil-immersed upright current transformer and its defect troubleshooting method, which is used for dismantling the oil-immersed upright current transformer and checking abnormal phenomena during the disassembly process. It is used to speculate and diagnose the cause of defects in oil-immersed vertical current transformers. Background technique [0002] According to the test cycle required by the preventive test regulations or the state-of-the-art maintenance regulations, the current transformers in operation need to be regularly tested and inspected for capacitance, dielectric loss, and dissolved gas in insulating oil. Generally speaking, it is often difficult to infer the cause of defects of oil-immersed vertical current transformers based on the test and inspection results of capacitance, dielectric loss, and dissolved gas in oil. [0003] Dismant...

AI Technical Summary

Problems solved by technology

However, unfamiliarity with the equipment structure of oil-immersed vertical current transformers, lack of experience in dismantling, unstandardized dismantling steps, and insufficient dismantling methods often lead to no results in the defect investigation process based on dismantling, thus Unable to meet the needs of speculating and diagnosing the cause of defects in oil-immersed vertical current transformers

Images