The working environment of Xinshao Longshan wind farm box substation is outdoors. Due to the temperature difference between day and night, the temperature difference between inside and outside the cabinet, and the ambient air humidity, condensation will appear on the inner wall of the cabinet. The dew on the side wall will flow down along the cabinet wall, which is easy to rust; the dew on the top will drip down and easily drip onto the equipment, which greatly affects the safe operation of the equipment. The low-pressure chamber in the plant is 1.75*1.05*2.38m(L*W*H), and about 4.37m³ ; the high-pressure chamber is 2.4 *2.335*2.38m (L*W*H), about 13.34 m³. When the environment inside the cabinet is poor, the indoor humidity is 86.6%RH and the temperature is 40°C.
The person in charge of the Xinshaolongshan Wind Power Plant in Loudi, Hunan realized the hazards of the humid environment to the power equipment. Therefore, when the humidity problem in the cabinet was discovered, he contacted Sanda Electronics as soon as possible and reported the moisture condensation situation in the station to Sanda in time.
Sanda Electronic visit the site for the wind power plant wthin the shortest time. Because the wind power plant is located in a mountainous area with large temperature changes, and Hunan is an area prone to ice and snow, Sanda Electronics briefly explained the management of the wind power plant, hoping to help solve the problem of moisture condensation in electrical equipment.
Based on the analysis of the on-site situation and user requirements, Sanda Electronics puts forward the following ideas
a. The dehumidification requirements in the cabinet can be achieved by installing a switchgear
cabinet dehumidifier
b. Improve the temperature in the cabinet by installing silicone rubber heater
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