Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
CHANGE-OVER SWITCH FOR ON-LOAD TAP CHANGER
Document Type and Number:
Japanese Patent JP2010080590
Kind Code:
A
Abstract:

To provide a change-over switch for an on-load tap changer, capable of arbitrarily setting a period of maintaining a contact state of a movable contact to a fixed contact.

The change-over switch for an on-load tap changer is constituted by fitting rollers 8u to 8w at top ends of movable contacts 5u to 5w having rear end portions supported to be freely rotatable, and rotating between positions of contacting with first fixed contacts 3u to 3w, and positions of contacting with second fixed contacts 4u to 4w, and by fitting a drive disk 9 having V-shape grooves Vu to Vw, with which the rollers engage, at an outer periphery to a drive axis 2. In such a state that the rollers 8u to 8w are engaged with the V-shape grooves Vu to Vw in a process of rotation of the drive disk 9 to one direction and another direction, the movable contacts respectively rotate to a side of the first fixed contacts and a side of the second fixed contacts, and, finally, the movable contacts perfectly contact with the first fixed contacts and the second fixed contacts when the rollers 8u to 8w are released from the V-shape grooves and contact with an outer periphery of the drive disk 9.


More Like This:
Inventors:
OSHIMA HIROSHI
Application Number:
JP2008245628A
Publication Date:
April 08, 2010
Filing Date:
September 25, 2008
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
DAIHEN CORP
International Classes:
H01F29/04
Attorney, Agent or Firm:
Hidetoshi Matsumoto