Widely used in high-rise buildings, underground facilities, populated areas

Dry-type transformers due to environmental features excellent, simple structure, easy maintenance, there are fire and flame retardant, etc., are widely used in high-rise buildings, underground facilities, populated areas, as well as power, transportation,  air circuit breaker , metallurgy and other industries from the 20th century. 1950s, the domestic enterprises have begun production of dry-type transformers, especially in the last 20 years, the production enterprises to introduce foreign  electric meter  technology, China began large quantities of industrial production. This transformer operation will not pollute the environment, which is why dry-type transformers can be liquid filled transformers, especially the PCB or mineral oil-filled transformers ideal substitute.