UHV AC outlet device authentication through
13, UHV transformers and reactors Used 1000 kV standard outlet devices successfully tested in Baoding, Hebei verified.
Excellent indicator of the outlet device, stable performance, achieved in the operating impulse voltage, lightning
impulse voltage and power frequency withstand voltage of partial discharge-free design expectations. The outlet device
successfully developed to accelerate the subsequent UHV construction progress, special high-voltage transformer
protection and the quality of reactor stability is important.
In transformers and reactors, the 1000 kV to 1000 kV outlet device to bear high pressure from the coil leads, through
the box and connected with the role of the casing. The device requires a high voltage tolerance within a small scale, to
ensure that the electric, magnetic, thermal and mechanical stress under the action of many other long-term reliable
operation, the structural design, quality materials and manufacturing processes demanding. In China s first UHV in the
construction of 1000 kV supply outlet device, seriously affected the progress of the project.
To this end, the State Grid Corporation organized to promote the standardization of 1000 kV outlet device design and
manufacturing. Switzerland, Weidmann for the company in conjunction with domestic manufacturer s standard design, the
company experts to conduct a comprehensive feasibility studies, carry out the checking and review of proposed inspection
and testing requirements, and material preparation, production and installation tests, etc. part of a comprehensive
management and control.
After more than eight months fighting, standardized 1000 kV outlet device developed and Tianwei change security
companies UHV AC pilot demonstration project on a standby transformer produced by the test. Compared with the original
outlet devices, new product performance, reasonable structure, the production cycle is short, easy to install, greatly
easing the follow-up duration of the project UHV pressure.