Title:
METHOD FOR DEVELOPING EPOXY RESIN IMPREGNATED GLASS FIBER DC BUSHING
Document Type and Number:
WIPO Patent Application WO/2022/027889
Kind Code:
A1
Abstract:
A method for developing an epoxy resin impregnated glass fiber 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.
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| JPS55124909 | BUSHING |
Inventors:
DENG JIANGANG (CN)
XU ZHUOLIN (CN)
LAN ZHENBO (CN)
SONG YOU (CN)
KE LEI (CN)
NIE YU (CN)
TANG CHENG (CN)
WANG SHANSHAN (CN)
PENG YAKAI (CN)
MAO YUEFEI (CN)
CAI CHAO (CN)
SHI YOUYI (CN)
XU ZHUOLIN (CN)
LAN ZHENBO (CN)
SONG YOU (CN)
KE LEI (CN)
NIE YU (CN)
TANG CHENG (CN)
WANG SHANSHAN (CN)
PENG YAKAI (CN)
MAO YUEFEI (CN)
CAI CHAO (CN)
SHI YOUYI (CN)
Application Number:
PCT/CN2020/134362
Publication Date:
February 10, 2022
Filing Date:
December 07, 2020
Export Citation:
Assignee:
WUHAN NARI LTD LIABILITY CO OF STATE GRID ELECTRIC POWER RES INST (CN)
STATE GRID POWER RES INSTITUTE LIMITED COMPANY (CN)
STATE GRID POWER RES INSTITUTE LIMITED COMPANY (CN)
International Classes:
H01B17/42; H01B19/00; H01B17/58; H01B17/64
Foreign References:
| CN112002504A | 2020-11-27 | |||
| CN201402952Y | 2010-02-10 | |||
| CN102146195A | 2011-08-10 | |||
| CN207883411U | 2018-09-18 | |||
| US20180144846A1 | 2018-05-24 |
Other References:
"Assembly Process Of Transformer", 30 June 1998, XINHUA BOOKSTORE BEIJING PUBLISHING OFFICE, CN, ISBN: 7-111-06069-5, article LOCAL RECORDS OF TRANSFORMER MANUFACTURING TECHNOLOGY, EDITORIAL BOARD: "Passage; Transformer Assembly Process", pages: 70 - 71, XP009534118
Attorney, Agent or Firm:
CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)
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