As the key equipment in the field of power transmission and transformation, gas-insulated switchgear plays an important role in the safe and stable operation of power systems. However, due to the sealing characteristics of gas-insulated switchgear, the heat dissipation conditions are poor and the temperature rise problem is particularly serious. In this paper, a gas-insulated switchgear with nitrogen as the insulation gas was designed, and the temperature of the designed switchgear was analyzed by the finite element method, on this basis, designing switchgear internal and external circulation cooling systems to reduce temperature rise. The temperature rise of the designed switchgear device was measured on-site. The experimental results showed that the contact temperature was lower than 65 degrees Celsius, which met the requirements.
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Feng et al. (2024) studied this question.
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