Tap changer

Details Tap changer Tap changer

2005-11-17

2009-11-24

Friedhofer, Michael A (Department: 2833)

Electricity: circuit makers and breakers

Electric switch details

Actuators

C200S01700A

Reexamination Certificate

active

07622688

ABSTRACT:
A tap changer has an insulating housing and a plurality of annular arrays of contacts fixed in the housing. A vertical switching shaft in the housing carries contacts positioned to engage the fixed contacts of the respective array on rotation of the shaft. A tap-changer head closes an upper end of the housing, and a head flange above the tap-changer head is formed with threaded fastening bores. A geneva transmission on the tap-changer head has an output connected to the shaft and an input shaft projecting vertically upward from the head into the head flange. An upper transmission stage boltable to the bores on the head flange is connectable to the input shaft. A handwheel drive has a flange with an upper cover through which the input shaft extends and a handwheel or hex fitting on an upper end of the input shaft.

REFERENCES:
patent: 2727613 (1955-12-01), Radkowski
patent: 4527022 (1985-07-01), Vazquez
patent: 4604503 (1986-08-01), Fuwa
patent: 5056377 (1991-10-01), Yatchum et al.
patent: 5191179 (1993-03-01), Yatchum et al.
patent: 5488212 (1996-01-01), Fukushi et al.
patent: 5523535 (1996-06-01), Larsson et al.
patent: 5834717 (1998-11-01), Neumeyer et al.
patent: 6091032 (2000-07-01), Dohnal et al.
patent: 6833518 (2004-12-01), Byers et al.
patent: 6838629 (2005-01-01), Baertl
patent: 7482714 (2009-01-01), Rapant et al.
patent: 331114 (1958-08-01), None
patent: 454821 (1928-01-01), None

Affiliated with

Also associated with

Rating

Tap changer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tap changer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tap changer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4110166