Dalian No.1 instrument transformer Co., Ltd.,(DYH hereafter) former Dalian No.1 instrument transformer works, was founded in 1972, which is a Chinese leader in instrument transformer with more than 1500 employees and more than thirty years manufacturing history. The enterprise occupies an area of 150,000m2, the building area is 80,000m2.



DYH's headquarter located in Dalian is the manufacture base of high voltage instrument transformer, medium voltage instrument transformer, insulated busbar, vacuum breaker and other power equipments. The sub-company and branch company...