Title:
Insulation spacer for gas-insulated switchgear and its manufacturing method
Document Type and Number:
Japanese Patent JP6338960
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an insulation spacer for a gas insulation switchgear in which the reduction of production cost and the improvement of mechanical properties are achieved by easily molding a structure where permittivity is spatially tilted.SOLUTION: Provided is an insulation spacer 6 for a gas insulation switchgear where a high voltage conductor part 1 is insulatively supported to a metal container 2, being a hollow structure produced from an insulation material by a three-dimensional molding device, and provided with an insulation part made of an insulation material and a cavity part into which an insulating gas 4 infiltrates, the ratio of the cavity part per unit volume is increased from the side of a high voltage conductor part 1 toward the side of the inner wall face of the metal container 2, thus the insulation spacer 6 can have a structure where relative permittivity is tiltedly changed, and the maximum electric field value of the surface can be suppressed.SELECTED DRAWING: Figure 1
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Inventors:
Yasuoka Takanori
Hiroshi Hatano
Masahiro Hanai
Hoshina Koichi
Takei Masafumi
Motoharu Shiiki
Takenaka Daigo
Hiroshi Hatano
Masahiro Hanai
Hoshina Koichi
Takei Masafumi
Motoharu Shiiki
Takenaka Daigo
Application Number:
JP2014153979A
Publication Date:
June 06, 2018
Filing Date:
July 29, 2014
Export Citation:
Assignee:
Toshiba Corporation
Toshiba Energy Systems Co., Ltd.
Toshiba Energy Systems Co., Ltd.
International Classes:
H01B17/56; B29C67/00; H02B13/045; H02G5/06; H02G5/08; H02G5/10
Domestic Patent References:
| JP60025322U | ||||
| JP11262143A | ||||
| JP2010100884A | ||||
| JP49052086U |
Attorney, Agent or Firm:
Kiuchi Mitsuharu