CN104505250A - Combined line transposition structure for transformer winding and transposition method of combined line transposition structure - Google Patents

Abstract

The invention discloses a combined line transposition structure for a transformer winding and a transposition method of the combined line transposition structure. The combined line transposition structure is formed through the following steps: using three guide lines as a combined line, carrying out a special transposition on 1/3 of the parallel connection between the combined line and the winding, respectively changing the upper two guide lines in the combined line to the lower part, changing the lowest guide line to the uppermost position, then carrying out a special transposition on 2/3 of the parallel connection between the combined line and the winding, respectively changing the lower two guide lines in the combined line to the upper part, and changing the uppermost first guide line to the lowest position. Therefore, the positions of the leakage magnetic fields where the guide lines are arranged are completely identical, so as to reduce the additional losses, reach the expected effect, greatly improve the working efficiency, and eliminate the potential safety hazard.

Description

A kind of assemble line transposition structure for Transformer Winding and interchanging method thereof

Technical field

The present invention relates to field of power transformer manufacture, particularly relate to a kind of assemble line transposition structure for Transformer Winding and interchanging method thereof.

Background technology

In prior art, along with the increase of transformer capacity, the sectional area of winding conducting wire also will along with increase.But, due to the restriction by the factors such as manufacturing condition and user's service condition, the wire of especially big sectional plane can not be produced.Again because Transformer winding conducting wire is in the stray field of alternation, according to Lenz's law, produce induced current in the closed circuit, thus produce eddy current loss in wire.In transformer calculates, when lead material, frequency, magnetic flux density are fixed, only have to reduce eddy current loss the thickness reducing wire, only having the radical in parallel with increasing wire to reach reduction eddy current loss to big current product.But when conductor in parallel radical increases, and the position of stray field is different residing for every root wire, and wire transposition not exclusively will produce circulating current, thus causes supplementary load loss.

Summary of the invention

The technical problem that the present invention mainly solves is to provide a kind of assemble line transposition structure for Transformer Winding and interchanging method thereof, the position of the stray field residing for each wire can be made identical, thus reduce supplementary load loss and get a desired effect, and greatly increase work efficiency, eliminate safe hidden trouble.

For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of assemble line transposition structure for Transformer Winding, comprise three wires, described three conductor in parallel and be divided into three sections, it puts in order from top to bottom is first wire for the front segment structure of three wires, second wire, 3rd wire, its arrangement position of the middle section structure of three wires is that the 3rd wire is above first wire, second wire is in the below of first wire, its arrangement position of the rear section structure of three wires is that second wire is above the 3rd wire, first wire is in the below of the 3rd wire.

In a preferred embodiment of the present invention, conductor connecting structure between the front segment structure of described three wires and middle section structure, between middle section structure and rear section structure is that two conductor flat line tilts are above downward, and replace with the staggered form that wire tilts upward below syndeton simultaneously.

In a preferred embodiment of the present invention, three wires of described front segment structure, middle section structure and rear section structure, from left to right in a parallel water horizontal line, make the position of the stray field residing for each wire identical.

The present invention also provides a kind of assemble line for Transformer Winding special interchanging method, is an assemble line with 3 wires,

First time transposition: 1/3 place once replaces in the middle of assemble line winding in parallel, respectively below 2 wires are changed to together in assemble line, changes to a nethermost wire topmost above;

Second time transposition: 2/3 place once replaces again in the middle of assemble line winding in parallel, respectively above 2 wires are changed to together in assemble line, changes to bottom first wire in the top below.

The invention has the beneficial effects as follows: the present invention is by the special transposition of the assemble line self of such twice, the position solving the stray field residing for each wire is equally identical, potential difference between parallel conducting wire equals zero, and does not have the generation of circulating current, thus reduces supplementary load loss.In addition, decrease the number of times that assemble line replaces entirely, decrease pad in winding, therefrom also improve the reliability of product.

Accompanying drawing explanation

Fig. 1 is assemble line of the present invention transposition schematic diagram.

Embodiment

Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.

Refer to Fig. 1, the embodiment of the present invention comprises: a kind of assemble line transposition structure for Transformer Winding, comprise three wires, described three conductor in parallel and be divided into three sections, it puts in order from top to bottom is first wire 1 for the front segment structure of three wires, second wire 2, 3rd wire 3, its arrangement position of the middle section structure of three wires is that the 3rd wire 3 is above first wire 1, second wire 2 is in the below of first wire 1, its arrangement position of the rear section structure of three wires is that second wire 2 is above the 3rd wire 3, first wire 1 is in the below of the 3rd wire 3.

Furtherly, the conductor connecting structure between the front segment structure of described three wires and middle section structure, between middle section structure and rear section structure is that two conductor flat line tilts are above downward, and replace with the staggered form that wire tilts upward below syndeton simultaneously; Three wires of described front segment structure, middle section structure and rear section structure are from left to right in a parallel water horizontal line.

Refer to Fig. 1, the special interchanging method of a kind of assemble line for Transformer Winding of the present invention: be an assemble line with 3 wires, in the middle of assemble line winding in parallel, 1/3 place once replaces, wherein in assemble line respectively below 2 wires are changed to together above, a nethermost wire is changed to topmost; In the middle of assemble line winding in parallel, 2/3 place once replaces again, respectively above 2 wires are changed to together in assemble line, first wire in the top is changed to bottom below.

As can be seen from Figure 1, the leakage field position residing for first wire 1 is: 1., 2., 3.; Leakage field position residing for second wire 2 is: 2., 3., 1.; The 3rd leakage field position residing for wire 3 is: 3., 1., 2..Leakage field position residing for 3 wires difference is identical.

Be different from prior art to compare: in prior art, must complete transposition be adopted in order to reduce supplementary load loss to wire, under normal circumstances for the assemble line of parallel connection also to carry out three times all transposition achieve the goal, this brings loaded down with trivial details to coil winding, affect production efficiency.Because the full transposition of assemble line must be cut off the wire in assemble line, weld wrapping insulation respectively after transposition again, and therefrom also bring potential safety hazard, transposition number is more will affect larger.And the present invention is adopt a kind of special interchanging method in an assemble line at three wires, as long as carry out twice transposition in the middle of assemble line, just can reach identical effect, bring conveniently to production, and improve the reliability of product.

The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims (4)

1. the assemble line transposition structure for Transformer Winding, it is characterized in that: comprise three wires, described three conductor in parallel and be divided into three sections, it puts in order from top to bottom is first wire, second wire, the 3rd wire for the front segment structure of three wires, its arrangement position of the middle section structure of three wires is that the 3rd wire is above first wire, second wire is in the below of first wire, its arrangement position of the rear section structure of three wires be second wire above the 3rd wire, first wire is in the below of the 3rd wire.

2. the assemble line transposition structure for Transformer Winding according to claim 1, it is characterized in that: the conductor connecting structure between the front segment structure of described three wires and middle section structure, between middle section structure and rear section structure for two conductor flat line tilts above downward, replace with the staggered form that wire tilts upward below syndeton simultaneously.

3. the assemble line transposition structure for Transformer Winding according to claim 1, is characterized in that: three wires of described front segment structure, middle section structure and rear section structure are from left to right in a parallel water horizontal line.

4. for an interchanging method for the assemble line of Transformer Winding, it is characterized in that: be an assemble line with 3 wires,

First time transposition: 1/3 place once replaces in the middle of assemble line winding in parallel, respectively below 2 wires are changed to together in assemble line, changes to a nethermost wire topmost above;

Second time transposition: 2/3 place once replaces again in the middle of assemble line winding in parallel, respectively above 2 wires are changed to together in assemble line, changes to bottom first wire in the top below.