Title:
INSULATION SPACER AND GAS-INSULATED SWITCHGEAR USING SAME
Document Type and Number:
WIPO Patent Application WO/2018/212124
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an insulation spacer that exhibits high dielectric strength against the adhesion of metallic foreign objects without enlarging the insulation spacer or complicating the shape thereof, and a gas-insulation switchgear. An insulation spacer (30) of a gas-insulation switchgear provided with a grounding tank (2) filled with an insulation gas, a high-voltage conductor (1) provided inside the grounding tank (2), and the insulation spacer (30), which supports and secures the high-voltage conductor (1) inside the grounding tank (2), wherein the insulation spacer (30) is characterized by having a conductor (31) that is connected to the high-voltage conductor (1), an insulation structure (32) that supports and secures the conductor (31) inside the grounding tank (2), and a nonlinear resistance layer (33) that is provided to the surface of the insulation structure (32), said nonlinear resistance layer (33) being provided to a part of the surface of the insulation structure (32) in which an electric field is high.
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Inventors:
FURUI HIROKAZU (JP)
NUKAGA JUN (JP)
HIROSE MAKOTO (JP)
NUKAGA JUN (JP)
HIROSE MAKOTO (JP)
Application Number:
PCT/JP2018/018507
Publication Date:
November 22, 2018
Filing Date:
May 14, 2018
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
H02B13/045; H02B13/055; H02G5/06
Foreign References:
| JPH06153342A | 1994-05-31 | |||
| JP2014007887A | 2014-01-16 | |||
| JP2016101080A | 2016-05-30 | |||
| JP2005327580A | 2005-11-24 | |||
| JP2012110206A | 2012-06-07 | |||
| JPH08149667A | 1996-06-07 |
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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