Transformer substation outdoor cable device ventilation and dehumidification device

Abstract

The present invention relates to the technical field of transformer substation auxiliary devices, especially to a transformer substation outdoor cable device ventilation and dehumidification device. The transformer substation outdoor cable device ventilation and dehumidification device comprises a cable trench, a terminal box and a heat dissipation well which are connected in order through a cableduct, filter screens are arranged at the connection of the cable trench and the cable duct and the connection of the terminal box and the cable duct, the bottom portion of the cable trench is provided with a first drainage channel configured to drain accumulated water in the cable trench, and a plurality of heat dissipation holes are uniformly distributed in the cable trench; and the bottom portion of the heat dissipation well is provided with a second drainage channel connected with a drainage well. Through arrangement of the heat dissipation holes and heat dissipation windows, the transformer substation outdoor cable device ventilation and dehumidification device improves the heat dissipation effect of the cable trench and the terminal box, through arrangement of a discharge brim and acap brim, the transformer substation outdoor cable device ventilation and dehumidification device facilitates dropping of rainfall and prevention of rainfall from dropping into the internal portion ofthe cable trench or the terminal box, and the cable trench and the terminal box communicate through the cable duct to avoid long-term accumulation of heat at a certain place so as to effectively avoid that the temperature and the humidity of the operation environment of the cable trench and the terminal box are too high.

Description

technical field [0001] The invention relates to the technical field of substation auxiliary equipment, and more specifically relates to a ventilation and dehumidification device for outdoor cable equipment in a substation. Background technique [0002] In the power system, outdoor cable equipment is one of the most important equipment in operation. In order to ensure the safe and stable operation of cables, strict requirements are required for the operating environment of cables. The outdoor cable operation environment of the substation mainly includes cable trenches and outdoor terminal boxes. In actual production and operation, the outdoor terminal box is connected with indoor control, measurement and protection equipment, and is generally installed next to the primary cable equipment. Due to long-term exposure to the outdoor environment, when the air is humid, especially during the rainy season in the south , It is easy to condense and accumulate water in the terminal bo...

AI Technical Summary

Problems solved by technology

In actual production and operation, the outdoor terminal box is connected with indoor control, measurement and protection equipment, and is generally installed next to the primary cable equipment. Due to long-term exposure to the outdoor environment, when the air is humid, especially during the rainy season in the south , It is easy to condense and accumulate water in the terminal box; if the sealing of the terminal box is not enough, it will also cause rainwater to enter directly, which will easily lead to accidents that affect the stability of the power grid, such as terminal row corrosion and protection device malfunction.

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