The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 19, 2024
Filed:
Dec. 07, 2020
Wuhan Nari Limited Liability Company of State Grid Electric Power Research Institute, Hubei, CN;
Nari Group Corporation, Jiangsu, CN;
Jiangang Deng, Wuhan, CN;
Zhenbo Lan, Wuhan, CN;
Zhuolin Xu, Wuhan, CN;
You Song, Wuhan, CN;
Yu Nie, Wuhan, CN;
Lei Ke, Wuhan, CN;
Hao Zhan, Wuhan, CN;
Jun Fu, Wuhan, CN;
Qiang Sun, Wuhan, CN;
Yuefei Mao, Wuhan, CN;
Qian Ma, Wuhan, CN;
Qianwen Zhou, Wuhan, CN;
Kaikai Gu, Wuhan, CN;
Haoxin Li, Wuhan, CN;
Lei Shi, Wuhan, CN;
Yu Xu, Wuhan, CN;
Cheng Tang, Wuhan, CN;
Yakai Peng, Wuhan, CN;
Youyi Shi, Wuhan, CN;
WUHAN NARI LIMITED LIABILITY COMPANY OF STATE GRID ELECTRIC POWER RESEARCH INSTITUTE, Hubei, CN;
NARI GROUP CORPORATION, Jiangsu, CN;
Abstract
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.