CN103680855A

CN103680855A - Built-in converter transformer core pulling plate column ring-current bypass structure

Info

Publication number: CN103680855A
Application number: CN201310707502.3A
Authority: CN
Inventors: 王冰; 邸晓丹; 彭广勇; 孙优良; 王海磊; 赵文祥; 王清璞
Original assignee: Baoding Tianwei Baobian Electric Co Ltd
Current assignee: Baoding Tianwei Baobian Electric Co Ltd
Priority date: 2013-12-20
Filing date: 2013-12-20
Publication date: 2014-03-26

Abstract

The invention relates to a built-in converter transformer core pulling plate column ring-current bypass structure, in particular to a large-capacity converter transformer core pulling plate column ring-current bypass structure, and belongs to the technical field of transformer manufacturing. According to the technical scheme, the structure comprises a clamping piece (1), a pull plate (2), a copper compensation ring (3) and a core-lamination stack (4), the copper compensation ring (3) is arranged on the surface of the core-lamination stack (4), a short circuit loop is formed along an iron core window, and the copper compensation ring (3) is clamped and fixed to the pull plate (2) through the clamping piece (1). The built-in converter transformer core pulling plate column ring-current bypass structure has the advantages that the energy consumption of the pull plate is reduced on the premise that the structure and strength of the pull plate are not changed, eddy-current loss on iron core last-stage iron is greatly reduced, the space is saved, the structure is simple, and overall arrangement is reasonable.

Description

Built-in converter transformer iron core arm-tie intercolumniation circulation bypass structure

Technical field

The present invention relates to a kind of built-in converter transformer iron core arm-tie intercolumniation circulation bypass structure, especially large capacity converter transformer arm-tie intercolumniation unshakable in one's determination circulation bypass structure, belongs to technical field of transformer manufacturing.

Background technology

For high-end large capacity converter transformer, all unavoidably there is an identical problem,, by pressure regulation winding tap lead leakage field, in iron core frame, produce induced current, powerful induced current will cause that arm-tie resistance loss sharply increases, and makes local overheating.

Summary of the invention

The object of the invention is to provide a kind of built-in converter transformer iron core arm-tie intercolumniation circulation bypass structure, on surface unshakable in one's determination, increases copper compensated loop, makes copper compensated loop form short-circuited conducting sleeve along window unshakable in one's determination, prevents leakage field, solves the problem existing in background technology.

Technical scheme of the present invention is:

A kind of built-in converter transformer iron core arm-tie intercolumniation circulation bypass structure, comprise folder, arm-tie, copper compensated loop and core lamination, copper compensated loop is located on core lamination surface, and forms short-circuited conducting sleeve along window unshakable in one's determination, and copper compensated loop is fixedly clamped by folder and arm-tie.

Described copper compensated loop, folder from top to bottom and principal post arm-tie unshakable in one's determination form short-circuited conducting sleeve along window unshakable in one's determination.

The invention has the beneficial effects as follows: not changing under the prerequisite of pulling plate structure and intensity, both reduced arm-tie loss, improved greatly the eddy current loss on final stage iron unshakable in one's determination, saved space simultaneously, simple in structure, rationally distributed.

Accompanying drawing explanation

Fig. 1 is copper compensated loop structural representation of the present invention;

Fig. 2 is vertical view of the present invention;

In figure: folder 1, arm-tie 2, copper compensated loop 3, core lamination 4.

Embodiment

Below in conjunction with accompanying drawing, by example, the invention will be further described.

With reference to accompanying

drawing

1,2,3, a kind of built-in converter transformer iron core arm-tie intercolumniation circulation bypass structure, comprise folder 1, arm-tie 2, copper compensated loop 3 and core lamination 4, copper compensated loop 3 is located on core lamination 4 surfaces, copper compensated loop, folder from top to bottom and principal post arm-tie unshakable in one's determination form short-circuited conducting sleeve along window unshakable in one's determination, and copper compensated loop 3 is fixedly clamped by folder 1 and arm-tie 2.

By converter transformer voltage regulation coil, go out line current and reach as high as amperes up to ten thousand, for avoiding the less return yoke arm-tie in cross section by electric current, return yoke arm-tie and folder from top to bottom are disconnected, and use outside copper compensated loop, form short-circuited conducting sleeve, prevent that leakage field is through in iron core.

Take to replace final stage iron unshakable in one's determination with copper compensated loop, shielded final stage silicon steel sheet unshakable in one's determination, the eddy current loss in final stage unshakable in one's determination is almost nil, prevent that leakage field is through in iron core, simultaneously, not to the iron core processing of slotting, grain orientation is complete, and the magnetic property of high performance silicon steel disc has obtained abundant application.

Claims

1. a built-in converter transformer iron core arm-tie intercolumniation circulation bypass structure, it is characterized in that comprising folder (1), arm-tie (2), copper compensated loop (3) and core lamination (4), copper compensated loop (3) is located on core lamination (4) surface, and along window unshakable in one's determination, form short-circuited conducting sleeve, copper compensated loop (3) is fixedly clamped by folder (1) and arm-tie (2).

2. built-in converter transformer iron core arm-tie intercolumniation circulation bypass structure according to claim 1, is characterized in that described copper compensated loop (3), folder from top to bottom and principal post arm-tie unshakable in one's determination form short-circuited conducting sleeve along window unshakable in one's determination.