Title:
GAS BUSHING
Document Type and Number:
WIPO Patent Application WO/2010/097887
Kind Code:
A1
Abstract:
A gas bushing capable of suppressing partial discharge or flashover by increasing the withstand voltage performance at four peripheral sides of a flange metal fitting (4). The gas bushing comprises a porcelain tube (1) filled with an insulative gas, a center conductor (2) extending through the interior of the porcelain tube (1), and a metallic flange metal fitting (4) provided at the upper end of the porcelain tube (1). The center conductor (2) includes a main electrical connection part (2b) having a first outer diameter and a large-diameter part (2a) formed at the upper end of the center conductor (2) and having a second outer diameter larger than the first outer diameter. The lower end (2c) of the large-diameter part (2a) is positioned below the tip end (4a) of the flange metal fitting (4).
Inventors:
OCHIAI ISHINORI (JP)
YOSHITOMO YUJI (JP)
YAMASHITA TORU (JP)
YOSHITOMO YUJI (JP)
YAMASHITA TORU (JP)
Application Number:
PCT/JP2009/053260
Publication Date:
September 02, 2010
Filing Date:
February 24, 2009
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
OCHIAI ISHINORI (JP)
YOSHITOMO YUJI (JP)
YAMASHITA TORU (JP)
OCHIAI ISHINORI (JP)
YOSHITOMO YUJI (JP)
YAMASHITA TORU (JP)
International Classes:
H01B17/36
Foreign References:
| JPH10275532A | 1998-10-13 | |||
| JPH06231636A | 1994-08-19 | |||
| JPH10188697A | 1998-07-21 |
Other References:
See also references of EP 2402960A4
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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