dry type transformer

Dry-type transformers are widely used in local lighting, high-rise buildings, airports, dock machinery and equipment, etc. Simply put, dry-type transformers refer to transformers whose core and windings are not immersed in insulating oil. Cooling methods are divided into natural air cooling and forced air cooling. When naturally air-cooled, the transformer can operate continuously for a long time at rated capacity. When forced air cooling is used, the output capacity of the transformer can be increased. It is suitable for intermittent overload operation or emergency overload operation. Since the load loss and impedance voltage increase greatly during overload, it is in a non-economic operating state, so it should not be placed in long-term continuous overload operation.