Moisture-proof and dehumidification method for high-voltage switch system

Abstract

The invention discloses a high voltage switch system moisture-proof and dehumidification method, and belongs to the technical field of electric power equipment. The method comprises the following steps that (1) the insulation part of the high voltage switch cabinet of a high voltage switch system is cleaned by acetone and anti-pollution flashover coating material is coated on the insulation part, and a cable inlet is plugged by fireproof daub and the joint part is plugged by glass cement; (2) a start temperature threshold, a stop temperature threshold, a start humidity threshold and a stop humidity threshold are arranged on a control device; (3) the control device starts a high ventilation dehumidification device and a heating device; (5) the heating device is enabled to heat the gas in the high voltage switch cabinet, the heated gas is enabled to be exhausted to the ventilation dehumidification device and the gas is condensed and heated so as to obtain dry gas, and the dry gas is transported to the high voltage switch cabinet through the ventilation dehumidification device; and (6) the step (5) is repeated until the temperature and / or the humidity detected by a temperature and humidity sensing device reaches the stop threshold, and the control devices stops the ventilation dehumidification device and the heating device.

Description

technical field [0001] The invention relates to the technical field of electric equipment, in particular to a moisture-proof and dehumidification method for a high-voltage switch system. Background technique [0002] Due to the long-term exposure of the existing high-voltage switchgear to the atmosphere, when the ambient humidity around the high-voltage switchgear is high or the temperature changes greatly, condensation or even water dripping will easily occur inside the high-voltage switchgear, and even damage the insulation of electrical equipment in severe cases. performance, thus causing discharge, arc and other phenomena, and even lead to serious accidents such as equipment explosion. In order to solve this problem, the title of the invention is a closed switch cabinet dehumidification device and method (patent publication number CN103904569A) has announced that the switch cabinet is ventilated, heated and dehumidified by installing the heating plate at the air outlet o...

AI Technical Summary

Problems solved by technology

[0002] Due to the long-term exposure of the existing high-voltage switchgear to the atmosphere, when the ambient humidity around the high-voltage switchgear is high or the temperature changes greatly, condensation or even water dripping will easily occur inside the high-voltage switchgear, and even damage the insulation of electrical equipment in severe cases. performance, thus causing discharge, arc and other phenomena, and even lead to serious accidents such as equipment explosion

In order to solve this problem, the title of the invention is a closed switch cabinet dehumidification device and method (patent publication number CN103904569A) has announced that the switch cabinet is ventilated, heated and dehumidified by installing the heating plate at the air outlet of the blower, but the method It is necessary to install an additional hair dryer in the switch cabinet, and the start and stop of the hair dryer cannot be controlled regularly

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