GAS-INSULATED SWITCHGEAR - MITSUBISHI ELECTRIC CORP

Title:

GAS-INSULATED SWITCHGEAR

Document Type and Number:

WIPO Patent Application WO/2014/112123

Kind Code:

A1

Abstract:

Provided is a gas-insulated switchgear provided with: a grounded metal tank (1) inside which insulation gas is enclosed; a central conductor (2) extending into the tank (1), to which alternating current voltage is applied; an insulating coating film (101) applied to the inner surface of the tank (1); and a coating film (3) applied over the coating film (101) and obtained by applying insulating paint components and paint containing a nonlinear resistance material. By means of this configuration, the action of metal impurities can be suppressed over a wide range, from areas having a low electrical field to areas having a high electrical field.

Inventors:

NAKAUCHI SHINICHIRO (JP)
SADAKUNI HITOSHI (JP)

Application Number:

PCT/JP2013/051080

Publication Date:

July 24, 2014

Filing Date:

January 21, 2013

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)
NAKAUCHI SHINICHIRO (JP)
SADAKUNI HITOSHI (JP)

International Classes:

H02B13/055; H02G5/06

Foreign References:

JPH08149667A	1996-06-07
JPH0279711A	1990-03-20
JPS59149422U	1984-10-05
JPH08237836A	1996-09-13
JP2010207047A	2010-09-16
JP2009284651A	2009-12-03
JP2010207047A	2010-09-16
JP4177628B2	2008-11-05

Other References: