Influence of HVDC Transmission Monopole Operation on Thermal Power Plant Transformer
In May 2010,the State Grid Corporation of China tested the GRM (ground return mode) monopole operation of the ± 800kV Fulong-Fengxian HVDC transmission system.During the test,the noise and vibration of the No.3,4,5,6 transformers in a large thermal power plant increased obviously.The field inspection indicated there was larger DC current in the neutral point of the main transformer,and the main transformer under DC bias showed some typical features.In this paper,the related problems are studied.
NETL
NSTL
万方数据
维普
