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UHV project means DC transmission project over ±800kV and AC transmission project over 1000kV. UHV has the advantage of big capacity, long distance, high efficiency and low losses. Also, it represents the highest level of HV transmission internationally. We need to conquer a series of questions such as high voltage, strong current and electromagnetic and insulating properties under harsh natural environment.

Sieyuan electric provide good products to various UHV network construction projects, fulfilling the core value of clients, assisting the construction of UHV. In order the make electricity’ operation safer, more controllable, more sufficient, Sieyuan Electric provides the following products and services: instrument transformer, disconnector      

Classic Proejcts     


Yun-Guang ±800kV DC Transmission Project-

Xiangjiaba-Shanghai ±800kV UHV DC Transmission Project

1000kV Jin Dongnan-Nanyang-Jinmen UHV AC Project

±800kV Nuo Zhadu-Guangdong AC Transmission Project

Huainan-Shanghai UHV DC  Project

Hami-Zhengzhou ±800kV UHV DC Transmission Project

Xi Luodu-Zhejiang Jinhua ±800kV UHV DC Transmission Project,

Zhebei-Fuzhou 1000kV AC UHV Project


Relevant Products:

Instrument transformer


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