Spraying coating process for preventing interphase short circuit of reactor

Abstract

The invention discloses a spraying coating process for preventing the interphase short circuit of a reactor. The invention has the technical scheme that the process comprises the following steps: firstly, carrying out conventional trimming work procedure on the reactor; spraying zinc chromate primer and polyurethane ash paint; then, carrying out grinding and cleaning; completely covering a coil and a wiring teminal of the reactor; using a special spray gun for carrying out spraying coating on the exposed metal part of the reactor under the condition of the pressure of 0.6 + / - 0.1 MPa; carrying out secondary spraying coating after the primary spraying coating is completed and the glue liquid surface is vulcanized; and carrying out repeated spraying coating until the coating layer thickness reaches 2.5 + / - 0.5 mm. At the same time, brushing coating enhancing treatment is carried out at corner angles and turning corners with relatively thin spraying coating thickness. The reactor carrying out the spraying coating by the process can effectively avoid the interphase short circuit accidents caused by bird and beast climbing. The invention can be used for the production of the reactor, and can also be used for reforming the reactors operating in a transformer station, the reformation can be completed without large-scale equipment such as a crane and the like, in addition, the operation is convenient, and the implementation is easy.

Description

technical field [0001] The invention relates to a reactor production process, in particular to a spraying process for preventing phase-to-phase short circuit of the reactor. Background technique [0002] With the acceleration of my country's power grid construction and the expansion of scale, the number of substations is also increasing. In recent years, outdoor stacked air-core series reactors and current-limiting reactors operating in substations frequently have small animals such as weasels and cats enter and climb, causing equipment accidents such as phase-to-phase short-circuits and inter-turn short-circuits of series reactors and current-limiting reactors. It has seriously affected the safe operation of the power grid and caused unnecessary economic losses to the power sector and the majority of power users. However, in the prior art, there is generally no better solution for this, and only a layer of insulating varnish is applied to the outer wall of the reactor. How...

AI Technical Summary

Problems solved by technology

In recent years, outdoor stacked air-core series reactors and current-limiting reactors operating in substations frequently have small animals such as weasels and cats enter and climb, causing equipment accidents such as phase-to-phase short-circuits and inter-turn short-circuits of series reactors and current-limiting reactors. occurred, seriously affected the safe operation of the power grid, and caused unnecessary economic losses to the power sector and the majority of power users.

However, in the prior art, there is generally no better solution for this, and only a layer of insulating varnish is applied to the outer wall of the reactor. However, this method still cannot prevent the series reactor, limiting The occurrence of equipment accidents such as phase-to-phase short circuit and inter-turn short circuit of flow reactor