(19)
(11) EP 1 037 233 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
11.09.2002 Bulletin 2002/37

(43) Date of publication A2:
20.09.2000 Bulletin 2000/38

(21) Application number: 00105357.8

(22) Date of filing: 17.03.2000
(51) International Patent Classification (IPC)7: H01H 33/66, H01H 33/24
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 18.03.1999 JP 7453899

(71) Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
Tokyo 100-8310 (JP)

(72) Inventors:
  • Kobayashi, Minoru
    Chiyoda-ku, Tokyo 100-8310 (JP)
  • Maruyama, Toshimasa
    Chiyoda-ku, Tokyo 100-8310 (JP)
  • Sato, Toshifumi
    Chiyoda-ku, Tokyo 100-8310 (JP)
  • Miyamoto, Seiichi
    Chiyoda-ku, Tokyo 100-8310 (JP)
  • Itotani, Takayuki
    Chiyoda-ku, Tokyo 100-8310 (JP)

(74) Representative: HOFFMANN - EITLE 
Patent- und Rechtsanwälte Arabellastrasse 4
81925 München
81925 München (DE)

   


(54) Switchgear


(57) A switchgear which has a disc-like fixed contactor 6, a moving contactor 10 coming into and out of contact with the disc-like fixed contactor 6, an electric field easing member 7 being placed in the surrounding of the fixed contactor 6, the portion in the surrounding of the fixed contactor 6 projecting from the fixed contactor 6 to the moving contactor 10 side, an electric field easing shield 11 being placed in the surrounding of the moving contactor 10 and having a portion projecting from the moving contactor 10 to the fixed contactor 6 side when the moving contact 10 is at a position out of contact with the fixed contactor 6, and a vacuum vessel 1 for housing the fixed contactor 6, the moving contactor 10, the electric field easing member 7, and the electric field easing shield 11.






Search report