Nari Group Corporation

Wuhan Nari Limited Liability Company of State Grid Electric Power Research Institute

Zhenbo Lan

Lei Shi

Lei Ke

Cheng Tang

Jun Fu

Youyi Shi

Haoxin Li

Kaikai Gu

Jiangang Deng

Qiang Sun

Hao Zhan

Yu Xu

Yu Nie

Qian Ma

You Song

Yuefei Mao

Zhuolin Xu

Qianwen Zhou

Yakai Peng

A method for developing an epoxy resin impregnated glass fiber Direct Current (DC) bushing, comprising: according to length parameters of each layer of capacitive screen or resistive screen designed depending on insulation requirements, selecting bushing design parameters, determining a winding machine program according to the bushing design parameters, and winding a core body according to the winding machine program, wherein during the core body winding process, the core body begins to be initially cured; after the core body is wound, curing the core body by an oven according to a preset oven temperature and duration; machining the cured core body according to a preset core body design drawing; after the inner wall of a flange is polished and cleaned and is heated and pretreated by the oven, injecting glue at the position of a glue injection hole of the flange for gluing the core body and the flange; sequentially assembling a collector ring, a hollow composite insulator, and a voltage-equalizing sealing cover on the glued core body, and mounting a conducting rod, a wiring board, and a voltage-equalizing ball; and performing various tests on the bushing according to a preset bushing standard for a DC system.

Method for developing epoxy resin impregnated glass fiber DC bushing

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Wuhan, China

Zhenbo Lan