33kV class Dry-type transformers are widely used in local lighting, high-rise buildings, airports, wharf CNC machineryand other places Simply speaking, dry-type transformers refer to transfomers in which iron cores and windings are notimmersed in insulating oil Cooling methods are divided into natural air cooling (AN) and forced air cooling (AF). Duringnatural air cooling, the transformer can operate continuously for a long time at rated capacity. When forced air coolingoccurs, the output capacity of the transtormer can be increased by 50%. Suitable for intermittent overload operation oremergency overload operation; Since the load loss and impedance voltage increase greatly during overload and are in non-economic operation, it should not be kept in continuous overload operation for a long time.
Full complied with GB/T 10228-2008; GB 1094.11-2007, IEC60076 STANDARDS
