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Title:
固体絶縁開閉装置の断路部操作装置
Document Type and Number:
Japanese Patent JP7196804
Kind Code:
B2
Abstract:
To provide a disconnection part operation device of a solid insulation switchgear for which a mechanical clutch mechanism is made unnecessary.SOLUTION: In a disconnection operation, a switchgear is moved to a disconnection position side by rotation of a motor (89M) in one direction, and when the switchgear reaches a disconnection position, normally open contacts 89CXa1 to 89CXa3 are opened to turn power of the motor off. At this time, reverse current does not flow, brake due to power generation brake is not applied to the motor by a diode D, and the disconnection operation using inertia of the motor can be performed. In a connection operation, the motor is rotated in the reverse direction to move the switchgear to a connection position side, and when the switchgear reaches a connection position, normally open contacts 89TXa1 to 89TXa3 are opened to turn the power of the motor off. At this time, current of the power generation brake flows to the motor via the diode D, the brake due to the power generation brake is applied, and the switchgear is stopped without the inertia.SELECTED DRAWING: Figure 2

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Inventors:
Sato Satoshi
Application Number:
JP2019170176A
Publication Date:
December 27, 2022
Filing Date:
September 19, 2019
Export Citation:
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Assignee:
KABUSHIKI KAISHA MEIDENSHA
International Classes:
H02B11/127; H01H47/02; H02B11/12
Domestic Patent References:
JP1111437U
JP5471613U
JP5215974A
Foreign References:
CN103633891A
US4179646
Attorney, Agent or Firm:
Hiromichi Kobayashi
Kiyoshi Tomioka
Hidehisa Uzawa
Tomoyuki Ota