Dry power transformer as a flame retardant,security,maintenance-friendly,small size and other characteristics,by the rapid development and high-rise building in the city’s power station and other places and been widely applied.Transformer in the operation in case of short circuit,overload,the ambient temperature high enough ventilation or cooling,and so on,it will make transformers overheated.For dry-type transformers,poor performance of its heat balance,winding temperature insulation resistance over the temperature insulation damage caused transformer is the main reason for not work properly.Therefore，the operation of the  transformer winding temperature monitoring,fan-driven air cooled and forced the police to achieve control is very important.Dry-type transformers temperature control system is to maintain the operation of dry-type transformers important components,transformers can effectively prevents accidents caused by high temperature.But also to promote scientific management of substations,transformers by reducing the temperature to achieve the economic operation,the reliability of its work level and operational convenience will directly influence the operation of dry-type transformers quality.