Tap-changing switching device including vacuum switches

Details Tap-changing switching device including vacuum switches Tap-changing switching device including vacuum switches

H - Electricity

01

R

323/31

H01R 39/00 (2006.01) H01F 29/04 (2006.01) H01H 9/00 (2006.01)

Patent

CA 1124790

TAP-CHANGING SWITCHING DEVICE INCLUDING VACUUM SWITCHES Abstract of Disclosure A tap-changing switching device for connecting various taps of a tapped transformer winding to a load. The device is con- spicuous by its simplicity, in particular the absence of any contact-operating linkages. It comprises a system of fixed contacts arranged in a circular pattern and a pair of co- operating movable contacts of which each is connected in series with a vacuum switch. There is a common support for said pair of movable contacts and said vacuum switches of which each is connected in series with one of said movable contacts. The pattern formed by said fixed contacts. The mechanical and electrical connection between the movable contact and the vacuum switches is effected by a pair of spring-biased rods. Each of the pair of movable contacts is supported on the axially outer end by one of said pair of rods and the movement of this pair of rods is controlled by cam means. The latter are formed by the radially inner sur- faces of the contacts of said system of fixed contacts. -1-

306804

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