Structure Description Open type: It is a commonly used form, with its body in direct contact with the atmosphere, and is suitable for relatively dry and clean indoor environments (when the ambient temperature is 20 degrees Celsius, the relative humidity should not exceed 85%). Generally, there are two cooling methods, namely, air self cooling and air cooling. Closed type: The device is located in a closed enclosure and does not directly contact the atmosphere (due to poor sealing and heat dissipation conditions, it is mainly used for mining and belongs to explosion-proof type). Castable type: Cast with epoxy resin or other resin as main insulation, it has simple structure and small volume, and is suitable for transformers with small capacity.
2023/03/21
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