Damp-proof and dehumidifying method for 10KV box-type transformer substation

Abstract

The invention relates to a damp-proof and dehumidifying method for a 10KV box-type transformer substation, belonging to the field of damp-proof and dehumidifying of devices for power supply and distribution. A semiconductor dehumidification module is arranged in a box-type transformer substation cabinet body; temperature and humidity sensors are respectively arranged inside and outside the cabinetbody; a drainage pipeline and an exhaust fan are arranged on the cabinet body; and the dehumidification module, the temperature and humidity sensor and the exhaust fan are connected with a local control terminal module. When the humidity in the cabinet body is higher than the humidity of the external air and the humidity in the cabinet body is higher than a preset humidity upper limit value, theexhaust fan is started, and the internal air and the external air are changed through a quick exchange box, so that the humidity of the internal air of the cabinet body is reduced; when the humidity in the cabinet body is higher than the preset humidity upper limit value, the dehumidification module actively sucks the humid air in the closed space in the closed box type cabinet body into the dehumidification air channel, the water vapor in the air is condensed into water after being cooled by the dehumidification module, the water vapor is discharged out of the cabinet body through the water guide pipe, and the dehumidified dry air is circulated in the cabinet. The damp-proof and dehumidifying method is capable of achieving the damp-proof and dehumidifying functions in the box-type substation cabinet body through the working modes of cooling, water drainage and ventilation.

Description

technical field [0001] The invention belongs to the field of moisture-proof, dehumidification and monitoring of power supply and distribution devices, and in particular relates to a moisture-proof and dehumidification method for a 10-kilovolt box-type substation. Background technique [0002] In the low-voltage distribution network, box-type substations or box-type transformers (box-type transformers for short) are the most commonly used terminal power distribution methods. They are generally installed outdoors as an intermediate link between high and low voltage conversion and power distribution to residential users. [0003] However, since the box substation and switchgear are often sealed, the internal space is relatively narrow, affected by the rainy season and weather changes, the humid air cannot be discharged in time, and condensation is prone to occur inside. [0004] Condensation attached to components or electrical connection points will affect the insulation perfo...

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Problems solved by technology

[0008] In the above technical solution, one is to use acetone to clean the insulation of the high-voltage switchgear of the high-voltage switch system, which is usually difficult to implement for a compact box-type transformer, unless the entire box-type transformer is disassembled; and the box-type transformer is disassembled After assembly, it is often difficult to guarantee the assembly quality and electrical safety parameters after assembly in actual work; the second is to use heating and dehumidification mode, which is not suitable for the high temperature and humid environment in the south

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