Method for cleaning high-voltage electric power equipment in electrified insulating manner

Abstract

The invention relates to a method for cleaning high-voltage electric power equipment in an electrified insulating manner. The method can effectively achieve the purposes that the high-voltage electric power equipment is cleaned in an electrified manner, and safe operation of the electric power equipment is guaranteed. The method includes the steps that the electric power equipment is cleaned with a high-voltage insulating cleaning agent and brushed in cooperation with an electric sweeping brush in an insulating manner, and the electric power equipment is cleaned in an external insulating manner; the cleaning agent comprises, by weight percentage, 40%-50% of transformer oil, 40%-50% of naphtha, 7%-11% of light solvent oil and 0.5%-1.5% of a penetrating agent, 100% of the raw materials are put into a stainless steel reaction stirring kettle, a reaction is carried out for 1.5 hours to 2.5 hours at the temperature of 10 DEG C to 20 DEG C under the one atmospheric pressure, and the cleaning agent is obtained; and the rock resistivity is larger than 1*1010 omega / cm. The cleaning step includes the processes that under the environment with the relative humidity being not larger than 90%, the cleaning agent is put into a liquid storage tank and is connected with a spray gun through a liquid guide pipe and a hydraulic pump, the spray gun cleans the high-voltage electric power equipment in the electrified insulating manner under the pressure of 0.5 MPa to 1 MPa. The cleaning method is simple, effective, safe and feasible and has good economic and social benefits.

Description

technical field [0001] The invention relates to the field of electrical appliances, in particular to a method for cleaning live insulation of high-voltage electric equipment. Background technique [0002] At present, pollution flashover accidents and fires of power equipment in my country occur from time to time. From February 10 to February 28, 1990, large-scale pollution flashover power grids occurred in Beijing-Tianjin-Tang Power Grid, Hebei Nan Power Grid, and Western and Northern Henan Power Grids; from the end of 1996 to In February 1997, large-scale pollution flashover accidents occurred in East China, Central China, North China, and Shandong power grids; in early 1998, large-scale pollution flashover accidents occurred in East China, North China, and Shandong power grids; A large area of ​​pollution flashover occurred in Shenyang power grid. Each pollution flashover has caused hundreds of millions or even billions of dollars in economic losses. The cause of pollution...

AI Technical Summary

Problems solved by technology

[0003] In view of the above situation, in order to overcome the deficiencies of the current technology, the purpose of the present invention is to provide a live insulation cleaning method for medium and high voltage power equipment, which can effectively solve the problem of live cleaning of high voltage power equipment and ensure the safe operation of power equipment. The technical solution is: As we all know, most of the power supply and transformation equipment used in the power system use air as the external insulation medium. If there is no influence of external pollutants, these equipment can operate safely in the air, and there will be no short circuit between phases or short circuit to ground.