Energy Saving Dry Type Encapsulated Transformer
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Energy Saving Dry Type Encapsulated Transformer
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产品描述
- 产品描述
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- Commodity name: Energy Saving Dry Type Encapsulated Transformer
Dry-type transformers are widely used in local lighting, high-rise buildings, airports, terminals, CNC machinery and other places. Simply speaking, dry-type transformers are transformers whose cores and windings are not immersed in insulating oil.
Dry-type transformers are widely used in local lighting, high-rise buildings, airports, terminals, CNC machinery and other places. Simply speaking, dry-type transformers are transformers whose cores and windings are not immersed in insulating oil. The cooling method is divided into natural air cooling (AN) and forced air cooling (AF). Under natural air cooling, the transformer can continuously run for a long time at the rated capacity. With forced air cooling, the output capacity of the transformer can be increased by 50%. It is suitable for intermittent overload operation or emergency accident overload operation; due to the large increase in load loss and impedance voltage during overload, it is in a non-economic operating state, so it should not be subjected to long-term continuous overload operation.
1.High insulation strength
Pouring epoxy resin has an insulation breakdown field strength of 18-22KV / mm, and an oil-immersed transformer with the same voltage level has approximately the same lightning impulse strength. The insulation temperature level is F level, and the maximum allowable temperature is 155 ° C. The winding temperature The rise limit is 100K.2.Strong short-circuit resistance
Due to the material characteristics of the resin, the winding is cast as a whole, and it becomes a rigid body after being heated and fixed. Therefore, the mechanical strength is very high, and it is proved by the short circuit test that the resin cast dry-type transformer is rarely damaged due to short circuit.3.Outstanding disaster prevention performance
Epoxy resin is flame retardant, flame retardant and self-extinguishing, and will not cause secondary disasters such as explosion.
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