Dismantling and troubleshooting method of an oil-immersed vertical current transformer

Abstract

The invention proposes and standardizes the dismantling steps of the oil-immersed vertical current transformer and its defect checking method. On the basis of sorting out defect information and carrying out diagnostic tests, the present invention relies on the structural characteristics of the oil-immersed vertical current transformer, and gradually carries out disassembly and investigation and analysis work. The samples taken during the dismantling process are supplemented by means of microscopic inspection and material performance inspection, which improves the defect troubleshooting process and is more conducive to the speculation and diagnosis of defect causes. The present invention can quickly disassemble the bulky oil-immersed upright current transformer, improves the disassembly efficiency, and avoids the risk of unsuccessful or unsuccessful investigation caused by improper disassembly; it is beneficial to solve practical problems in production, Accumulate defect troubleshooting experience. The implementation steps of the invention are clear, the technical guidance is stronger, and it is easier for technicians to master. Namely: the present invention has technical guiding value for dismantling and troubleshooting of standardized oil-immersed vertical current transformers.

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