Leakage reactance transformer

Details Leakage reactance transformer Leakage reactance transformer

1976-09-23

1978-10-31

Kozma, Thomas J.

Inductor devices

Relatively movable coils

With core

29606, 336133, H01F 2104, H01F 2106

Patent

active

041237366

ABSTRACT:
This specification discloses a leakage reactance transformer for supplying electric arc welding current and comprising a core formed from a stack of laminations having a central `key-hole` shaped opening punched therein and defining an arcuate core portion and two spaced legs. The core has primary and secondary windings mounted thereon and a keeper secured to the legs to close the flux path of the core. One of the windings is mounted on a frame which is pivoted relative to the core so that the winding is movable along the arcuate core section towards and away from the other winding. A magnetic shunt member is also mounted on the frame approximately 180.degree. from the movable winding and in one position bridges the gap between the legs of the core and in another position is remote from this gap. In the bridging position the shunt contributes to the leakage reactance of the transformer and in the remote position contributes substantially no leakage reactance. The shunt is formed from a sector of the portion of the laminations cut from the core to define the arcuate section of the opening and the keeper is formed from the remainder of the portion cut from the core and defining the space between the legs of the core. The core and windings are mounted within a casing and means are provided to facilitate the pivotal movement of the movable winding and shunt to any position between the two extremes whereby the welding current may be infinitely varied between the values at the extremes.
In a modification two similar cores are connected together by their legs and a movable winding and shunt member is mounted on each. In this arrangement the output current range is increased.

REFERENCES:
patent: 1500082 (1924-07-01), Langdon-Davies et al.
patent: 1771551 (1930-07-01), Strohschneider
patent: 2270178 (1942-01-01), Weis et al.
patent: 2475044 (1949-07-01), Mulder
patent: 2811203 (1957-10-01), Garbarino
patent: 3205561 (1965-09-01), Brutt et al.

Affiliated with

Also associated with

Rating

Leakage reactance transformer does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1837505