Title:
It is a tap switching arrangement at the time of load.
Document Type and Number:
Japanese Patent JP6282547
Kind Code:
B2
Abstract:
An on-load tap changer which ensures the compatibility of an oil tank when an interchange from the in-oil arc switching scheme to the vacuum-valve scheme is made, improves a retrofit function, achieves a space saving by simplifying components, and facilitates a construction of an actuation mechanism is provided. A change-over switch 46 for the vacuum-valve scheme is placed in an oil tank 50 filled with an insulation oil 56. The change-over switch 46 is provided with a main contact contained in vacuum valves 2, 3, 5, 6, and current-carrying conductors 7, 8 to reduce a current flowing in the main contact, and parallel link mechanisms actuating the current-carrying conductors 7, 8 in a parallel manner. A stationary contact 47 capable of contacting with and separating from the current-carrying conductors 7, 8 is attached to the internal wall surface of the oil tank 50. The change-over switch 46 is freely attachable to and detachable from the oil tank 50 with the stationary contact 47 being attached to the oil tank 50.
Inventors:
Naoki Eguchi
Taku Ishikawa
Yasushi Miyamoto
Taku Ishikawa
Yasushi Miyamoto
Application Number:
JP2014145430A
Publication Date:
February 21, 2018
Filing Date:
July 15, 2014
Export Citation:
Assignee:
Toshiba Corporation
Toshiba Energy Systems Co., Ltd.
Toshiba Energy Systems Co., Ltd.
International Classes:
H01F29/04
Domestic Patent References:
| JP2012238653A | ||||
| JP2013243194A | ||||
| JP2013526772A | ||||
| JP2012238683A |
Attorney, Agent or Firm:
Kiuchi Mitsuharu