Title:
PARTIAL DISCHARGE DETECTOR OF ELECTRIC POWER APPARATUS
Document Type and Number:
Japanese Patent JP2011237235
Kind Code:
A
Abstract:
To provide a partial discharge detector of an electric power apparatus which has high sensitivity over a wide frequency band.
A sensor part 10 comprises: a dielectric body 11 arrange on the inner surface of a flange 6 at a ground potential which air-tightly closes a hand hole 5; a first and second divided antenna electrodes 12 and 13 overlapping the dielectric body 11 with space therebetween; and a metal bolt 14 screwing and fixing the first and the second divided antenna electrodes 12 and 13 on the flange 6, passing through the dielectric body 11.
Inventors:
YOSHIMURA MANABU
TSURIMOTO TAKAO
SUGAWARA KENGO
TSURIMOTO TAKAO
SUGAWARA KENGO
Application Number:
JP2010107910A
Publication Date:
November 24, 2011
Filing Date:
May 10, 2010
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
G01R31/12; H01H33/56; H02B13/065; H02G5/06
Attorney, Agent or Firm:
Michiharu Soga
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda
Junichiro Yoshida
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda
Junichiro Yoshida