TWI501265B - High leakage reactance transformer - Google Patents

Description

High leakage resistance transformer

The present technology relates to a high leakage transformer, comprising a transformer unit and a reactor unit; wherein the transformer unit is formed by stacking complementary silicon steel sheets; wherein the reactor unit has a vertical pillar, and the vertical pillar further comprises An insulating plate having a through hole is disposed between the sub-stack and the sub-stack of the silicon steel sheet, and includes "fixing plates having through holes" disposed on both sides of the sub-stack of the steel sheets of the vertical struts.

The high-impedance transformer of the prior art, in which the transformer unit, the horizontal strut and the vertical strut have a "connection joint", and when the collision occurs during transportation, cracks are easily generated at these "connection joints"; When the product is in operation, these cracks interact with the air to create noise. The reactor unit has similar defects, and the horizontal pillar and the vertical pillar have a "connection joint". At the same time, the horizontal pillar is composed of a plurality of sets of sub-stacks of silicon steel sheets, and the insulation board is disposed. Between the secondary stack and the secondary stack; there are also micro cracks between the secondary stack and the secondary stack due to the impact, and these cracks also interact with the air to generate noise during product operation. If the "connection joint" in the high leakage resistance transformer can be eliminated or reduced, it can withstand collision and is not prone to cracks, and can reduce noise.

Figure 1A~1B previous skills

1A shows the prior art, including a transformer unit 100 and a reactor unit 200, which are placed in parallel; the transformer unit 100 has three vertical struts 10Y, and the reactor unit 200 also has three vertical struts 20Y, which are placed in parallel. The left coil 131 surrounds a pair of vertical struts 10Y, 20Y on the left, the intermediate coil 132 surrounds a pair of vertical struts 10Y, 20Y in the middle, and the right coil 133 surrounds a pair of vertical struts 10Y, 20Y on the right. A screw 19 is used to lock the stack of silicon steel sheets of the horizontal strut 10X.

Figure 1B shows a side view of the prior art of Figure 1A, transformer unit 100 having: an upper fiberboard (or The edge paper 142T is disposed above the vertical pillar 10Y; the lower fiberboard (or insulating paper) 142B is disposed below the vertical pillar 10Y. Two strips of fiber strips 14 are disposed on both sides of the vertical pillar 10Y of the transformer unit.

The reactor unit 200 has an upper fiberboard (or insulating paper) 242T disposed above the vertical pillar 20Y; and a lower fiberboard (or insulating paper) 242B disposed below the vertical pillar 20Y. Each of the fiber sheets 24 is disposed on one of the left and right sides, and is disposed on both sides of the vertical pillar 20Y.

2A~2C Transformer unit in the prior art

2A shows a front view of the transformer unit 100 of FIG. 1, including: upper and lower horizontal struts 10X, and three vertical struts 10Y are disposed in the middle of the upper and lower horizontal struts 10X.

2B shows a side view of the vertical strut 10Y, the structure comprising: a stack of steel sheets 12 and a left side insulating strip 14 disposed to the left of the stack of steel sheets 12; and a right side insulating strip 14 disposed to the right of the stack 12 of sheet steel sheets.

2C shows the structure of the lower horizontal strut 10X of FIG. 2A; the lower horizontal strut 10X includes: a silicon steel sheet stack 122; the flat iron clips 122P are disposed on both sides of the silicon steel sheet stack 122; and the lower fiberboard (or insulating paper) 142B is disposed Above the stack of silicon steel sheets 122. The upper horizontal struts 10X are similar in structure and include: a silicon steel sheet stack 122; flat iron clips 122P are disposed on both sides of the silicon steel sheet stack 122; and fiber sheets (or insulating paper) 142B are disposed below the silicon steel sheet stack 122.

3A-3C another schematic diagram of a transformer unit in the prior art

3A shows a perspective view of a transformer unit 100 in the prior art. Three sets of vertical struts 12 are disposed between the upper horizontal struts 122T and the lower horizontal struts 122B; the upper fiberboard (or insulating paper) 142T is disposed on the upper horizontal struts 122T and the vertical struts 12 The lower fiberboard (or insulating paper) 142B is disposed between the lower horizontal pillars 122B and the vertical pillars 12. In a side view, a plurality of wide continuous joints G are produced at the joints of the units, and such wide joints G are susceptible to cracks during collision during transportation. When the product is in operation, these cracks will produce noise.

FIG. 3B shows the first piece of silicon steel sheet unit of the transformer unit of FIG. 3A, which is composed of five pieces of silicon steel sheets 122T, 122B, And three pieces of silicon steel sheet 12 are formed by a common plane, one on top of the other, and three in the middle are placed in the middle of each of the upper and lower pieces.

Fig. 3C shows the second piece of silicon steel sheet unit of the transformer unit of Fig. 3A, which is also composed of five pieces of silicon steel sheets, and is identically combined with the first sheet steel unit. Therefore, after the first silicon steel sheet unit and the second silicon steel sheet unit are sequentially stacked and the fiber board (or insulating paper) 142T, 142B is disposed, the stack structure of the silicon steel sheet of FIG. 3A is formed. In other words, the stack of silicon steel sheets of the transformer unit of Fig. 3A is formed by stacking the same silicon steel sheet units.

4A~4C reactor unit in the prior art

4A shows a reactor unit of the prior art having a pair of horizontal struts 20X and three sets of vertical struts 20Y disposed between the upper and lower horizontal struts 20X. The upper fiberboard (or insulating paper) 242T is disposed above the vertical pillar 20Y; the lower fiberboard (or insulating paper) 242B is disposed below the vertical pillar 20Y.

4B shows the structure of the vertical struts 20Y, comprising a plurality of sets of silicon steel sub-stacks 22, the insulating sheets 23 being disposed between the sub-stacks 22 of the gangue sheets; the fiber sheets 24 being disposed one on top of the other, disposed on both sides of the sub-stack 22 of the slag steel sheets.

4C shows the structure of the lower horizontal strut 20X, including a stack of silicon steel sheets 222, disposed above the stack of steel sheets 222 with fiberboard (or insulating paper) 242B. The structure of the upper horizontal strut 20X, similar to the structure of the lower horizontal strut 20X, includes a stack of galvanized steel sheets 222 (not shown), and a fiberboard (or insulating paper) 242T is disposed below the stack of steel sheets 222.

5A~5C vertical pillars of the reactor unit in the prior art

Fig. 5A shows a side view of the vertical strut 20Y of the reactor unit in the prior art; Fig. 5B shows the fixed plate 24 on both sides in Fig. 5A as a solid planar structure; and Fig. 5C shows the insulating plate 23 in Fig. 5A as a solid planar structure. The fixing plate 24 and the insulating plate 23 in the prior art are both solid plates.

One of the sources of noise when the high leakage resistance transformer is operated is a crack in the product structure. The high leakage resistance transformer disclosed in the art includes a transformer unit 300 and a reactor unit 400; wherein the transformer unit 300 is complementary The steel slabs are staggered and the joints are spaced apart so that there is no continuous joint (G2 in Fig. 7A) in the side view of Fig. 7A, and it is possible to avoid "collision during transport is produced at the joint". Crack." The reactor unit 400 has a fixing plate 44 and an insulating plate 43 provided with a "through hole" structure, which can accelerate the time required for impregnation, and facilitates rapid entry of the impregnated liquid into the stack of silicon steel sheets during the impregnation process. .

Figure 6 is a first embodiment of the present technology

6 shows a three-phase high-leakage transformer comprising: a transformer unit 300 disposed in parallel with the reactor unit 400, and three sets of coils 13 respectively surrounding the left vertical pillar, the intermediate vertical pillar, and the right vertical pillar.

7A to 7C are structural diagrams of a transformer unit of the first embodiment of the present technology

FIG. 7A shows a structure of a transformer unit 300 according to Embodiment 1 of the present technology, which is a stack of silicon steel sheets stacked alternately by a first combination sheet A and a second combination sheet B. When the composite sheet A and the composite sheet B are stacked alternately, the side view, please note that the joints G21, G22 in the figure, the horizontal observation, G21, G22 appear intermittent; that is, the first, third, and fifth. . . The film has a junction G22 at the same position below; second, fourth, and sixth. . . The sheet has a state of the joint G21 at the same position above; this is different from the continuous joint G of the prior art.

7B shows the structure of the first composite sheet A described therein, comprising: a first vertical sheet A1 of a silicon steel sheet; a second vertical sheet A2 of a silicon steel sheet, disposed on the right side of the first vertical sheet A1 of the silicon steel sheet, and Cobalt with the first vertical piece A1 of the silicon steel sheet, and the upper end is lowered by a width W of the silicon steel sheet; the third vertical piece A3 of the silicon steel sheet is disposed on the second vertical piece A2 of the silicon steel sheet To the right, and coplanar with the first vertical piece A1 of the silicon steel sheet, and the same height as the first vertical piece A1 of the silicon steel sheet; the first horizontal piece A11 of the silicon steel sheet is placed on the second steel piece of the steel sheet Above the vertical piece A2; and the left side is in contact with the first vertical piece A1 of the silicon steel sheet, and the right side is in contact with the third vertical piece A3 of the silicon steel sheet; the second horizontal piece A12 of the silicon steel piece is disposed on the steel sheet a sheet below the first vertical sheet A1; and the upper left side is in contact with the first vertical sheet A1 of the silicon steel sheet, and the right side is in contact with the second vertical sheet A2 of the silicon steel sheet; and the third horizontal sheet A13 of the silicon steel sheet is disposed Below the third vertical piece A3 of the silicon steel sheet; and the left side is in contact with the second vertical piece A2 of the silicon steel sheet, and the upper right side is in contact with the third vertical piece A3 of the silicon steel sheet.

7C shows the structure of the second composite sheet B described therein, comprising: a first vertical sheet B1 of a silicon steel sheet; a second vertical sheet B2 of a silicon steel sheet, disposed on the right side of the first vertical sheet B1 of the silicon steel sheet, and The first vertical piece B1 of the silicon steel sheet is coplanar, and the upper end is raised by a width w of a silicon steel sheet; the third vertical piece B3 of the silicon steel sheet is disposed on the right side of the second vertical piece B2 of the silicon steel sheet, and The first vertical piece B1 of the silicon steel sheet is coplanar and is at the same height as the first vertical piece B1 of the silicon steel sheet; the first horizontal piece B11 of the silicon steel sheet is disposed above the first vertical piece B1 of the silicon steel piece; And the lower left side is in contact with the first vertical piece B1 of the silicon steel sheet, and the right side is in contact with the second vertical piece B2 of the silicon steel sheet; the second horizontal piece B12 of the silicon steel piece is disposed on the third vertical piece of the silicon steel piece Above the B3; and the left side is in contact with the second vertical piece B2 of the silicon steel sheet, and the lower right side is in contact with the third vertical piece B3 of the silicon steel sheet; and the third horizontal piece B13 of the silicon steel piece is disposed on the steel sheet The lower side of the second vertical piece B2; and the left side is in contact with the top The steel sheet has a first vertical piece B1 and the right side is in contact with the third vertical piece B3 of the silicon steel sheet.

8A-8C are structures of a reactor unit in the embodiment of the present technology

8A shows a front view of the reactor unit 400 in the embodiment of the present technology, having an upper horizontal strut 40X and a lower horizontal strut 40X disposed between the upper end horizontal strut 40X and the lower end horizontal strut 40X. The upper fiberboard (or insulating paper) 442T is disposed below the upper horizontal pillar; the lower fiberboard (or insulating paper) 442B is disposed above the lower horizontal pillar 40X.

8B shows the structure of the vertical strut 40Y, comprising: an insulating plate 43 disposed between the first silicon steel sheet sub-stack E41 and the second tantalum steel sheet sub-stack E42. Two fixing plates 44 are respectively disposed on both sides of the sub-stacks E41 and E42. Two fixing plates 44, the upper end is higher than the upper surface of the uppermost sub-stack E41, forming an upper end groove for fixing to the upper horizontal strut 40X; two fixing plates 44, the lower end is lower than the lowermost sub-stack lower surface A lower end groove is formed to be fastened to the lower end horizontal strut 40X.

8C shows the structure of the horizontal strut 40X, comprising: a silicon steel sheet stack 422; and a fiberboard (or insulating paper) 442B having a through hole 442h. The flat iron clamp 422P front and rear 矽 steel sheet stack 422 enables a firm combination. The second through hole 44h is located at the position of the insulating plate 43 to facilitate the passage of the impregnation liquid into the vicinity of the insulating plate 43.

9A to 9C show the structure of vertical pillars in the reactance unit

9A shows a side view of the vertical strut 40Y in the reactance unit 400; FIG. 9B shows that the fixing plate 44 has a through hole 44h for facilitating the passage of the impregnation liquid; and FIG. 9C shows that the insulating plate 43 has a through hole 43h for facilitating the lamination of the steel sheet. The AB of the stack E41, the insulating plate 43, and the sub-stack E42 of the silicon steel sheet are adhesively fixed.

Figure 10 is a second embodiment of the present technology

The foregoing description implements the present technology in a three-phase high leakage transformer, and the present technology is also applicable to a single phase high leakage transformer. Figure 10 shows a single phase high leakage transformer comprising: a transformer unit 500 placed in parallel with the reactor unit 600, the two sets of coils 13 respectively surrounding the left vertical pillar and the right vertical pillar.

11A to 11C are structural diagrams of a transformer unit of the second embodiment of the present technology

FIG. 11A shows the structure of a transformer unit 500 of the second embodiment of the present technology, having a stack of silicon steel sheets stacked alternately by the first composite sheet C and the second composite sheet D. When the composite sheet C and the composite sheet D are alternately stacked; side view, please note that the joints G221, G222 in the figure, the horizontal observation, G221, G222 appear intermittent; that is, the first, third, fifth. . . The film has a junction G222 at the same position below; second, Four or six. . . The sheet has the state of the junction G221 at the same position above.

Figure 11B shows the structure of the first composite sheet C described therein, comprising: a first vertical sheet C1 of a silicon steel sheet; a second vertical sheet C2 of a silicon steel sheet, disposed on the right side of the first vertical sheet C1 of the silicon steel sheet, and It is coplanar with the first vertical piece C1 of the silicon steel sheet, and the upper end is raised by a width W of a silicon steel sheet. The first horizontal piece C11 of the silicon steel sheet is disposed above the first vertical piece C1 of the silicon steel sheet; and the lower left side is in contact with the first vertical piece C1 of the silicon steel sheet, and the right side is in contact with the second steel piece of the steel sheet a vertical sheet C2; a second horizontal sheet C12 of the silicon steel sheet, disposed under the second vertical piece C2 of the silicon steel sheet; and a left side contacting the first vertical piece C1 of the silicon steel sheet, and the upper right side is in contact with the The second vertical piece C2 of the silicon steel sheet.

11C shows the structure of the second composite sheet D, wherein the first vertical sheet D1 of the silicon steel sheet and the second vertical sheet D2 of the silicon steel sheet are disposed on the right side of the first vertical sheet D1 of the silicon steel sheet, and The first vertical piece D1 of the silicon steel sheet is coplanar, and the upper end is lowered by a width w of the silicon steel sheet; the first horizontal piece D11 of the silicon steel sheet is disposed above the second vertical piece D2 of the silicon steel sheet; and the lower right side Contacting the second vertical piece D2 of the silicon steel sheet, and the left side is in contact with the first vertical piece D1 of the silicon steel sheet; the second horizontal piece D12 of the silicon steel piece is disposed below the first vertical piece D1 of the silicon steel piece And the right side is in contact with the second vertical piece D2 of the silicon steel sheet, and the upper left side is in contact with the first vertical piece D1 of the silicon steel sheet.

12A to 12C show the structure of a reactor unit of the second embodiment of the present technology

12A shows a front view of a reactor unit 600 of the second embodiment of the present technology, having an upper horizontal strut 60X and a lower horizontal strut 60X disposed between the upper horizontal strut 60X and the lower horizontal strut 60X.

12B shows the structure of the vertical pillar 60Y, comprising: an insulating plate 63 disposed between the first silicon steel sheet sub-stack E61 and the second tantalum steel sheet sub-stack E62. Two fixed plates 64 are respectively arranged on the secondary stack E61, E62 on both sides. Two fixing plates 64, the upper end is higher than the upper surface of the uppermost stack E61, forming an upper end groove for fixing to the upper horizontal strut 60X; two fixing plates 64, the lower end is lower than the lowermost sub-stack lower surface A lower end groove is formed for fastening to the lower end horizontal post 60X.

12C shows the structure of the lower end horizontal strut 60X, comprising: a silicon steel sheet stack 622; and a fiberboard (or insulating paper) 642B having a through hole 642h. The flat iron clip 622P front and rear 矽 矽 steel sheet stack 622 enables a firm combination. The through hole 64h is located at the position of the insulating plate 63, and is convenient for the AB bonding between the sub-stack E61 of the silicon steel sheet, the insulating plate 63, and the sub-stack E62 of the silicon steel sheet.

13A to 13C show the structure of a vertical pillar in the reactance unit of the second embodiment

Fig. 13A shows a side view of the vertical strut 60Y in the reactance unit 600; Fig. 13B shows the fixing plate 64 having the through hole 64h for facilitating the passage of the impregnation liquid; and Fig. 13C shows the insulating plate 63 having the through hole 63h for facilitating the accumulation of the impregnation liquid. solidification.

The above description of the preferred embodiments and the drawings are intended to be illustrative of the preferred embodiments of the invention The present invention is intended to be within the scope of the applicant's scope of the invention.

A, C‧‧‧ first combination film

A2, D2‧‧‧ steel sheet second vertical piece

A3‧‧‧ steel sheet third vertical piece

A12, C12‧‧‧ steel sheet second horizontal piece

A13‧‧‧ steel sheet third horizontal piece

B1, D1‧‧‧ steel sheet first vertical piece

B2, D2‧‧‧ steel sheet second vertical piece

B11, D11‧‧‧ steel sheet first horizontal sheet

B12, D12‧‧‧ steel sheet second horizontal piece

300,500‧‧‧Transformer unit

400,600‧‧‧Reactor unit

43,63‧‧‧Insulation board

43h, 63h‧‧‧ first through hole

E42, E62‧‧‧Second steel sheet stacking

44,64‧‧‧fixed board

A1, C1‧‧‧ steel sheet first vertical piece

13‧‧‧ coil

A11, C11‧‧‧ first horizontal film

G21, G22, G221, G222‧‧‧ joint

B, D‧‧‧ second combination film

422‧‧‧矽Steel sheet stacking

B3‧‧‧ steel sheet third vertical piece

442‧‧‧Fiberboard (or insulating paper)

B13‧‧‧ steel sheet third horizontal piece

44h, 64h, 442h, 642h‧‧‧ through hole

40Y, 60Y‧‧‧ vertical pillar

40X, 60X‧‧‧ horizontal pillar

E41, E61‧‧‧ first steel sheet stacking

422P, 622P‧‧‧ flat iron clips

44h, 64h‧‧‧second through hole

Figure 1A~1B previous skills

2A~2C Transformer unit in the prior art

3A-3C another schematic diagram of a transformer unit in the prior art

4A~4C reactor unit in the prior art

5A~5C vertical pillars of the reactor unit in the prior art

Figure 6 is a first embodiment of the present technology

7A to 7C are structural diagrams of a transformer unit of the first embodiment of the present technology

8A-8C are structures of a reactor unit of the first embodiment of the present technology

9A to 9C show the structure of vertical pillars in the reactance unit

Figure 10 is a second embodiment of the present technology

11A to 11C are structural diagrams of a transformer unit of the second embodiment of the present technology

12A to 12C show the structure of a reactor unit of the second embodiment of the present technology

13A to 13C show the structure of a vertical pillar in the reactance unit of the second embodiment

400‧‧‧Reactor unit

40X‧‧‧ horizontal pillar

40Y‧‧‧ vertical pillar

43‧‧‧Insulation board

E41, E42‧‧‧ steel sheet stacking

44‧‧‧ fixed board

442‧‧‧Fiberboard (or insulating paper)

442h‧‧‧through hole

422P‧‧‧flat iron clips

442T, 442B‧‧‧ fiberboard (or insulating paper)

Claims (14)

A high leakage transformer, comprising: a transformer unit, having a stack of silicon steel sheets stacked alternately between a first composite sheet and a second composite sheet; wherein the first composite sheet further comprises: a first vertical sheet of a silicon steel sheet; a vertical piece disposed on the right side of the first vertical piece of the silicon steel sheet and coplanar with the first vertical piece of the silicon steel sheet, and the upper end is lowered by a width of a silicon steel sheet; the third vertical piece of the silicon steel sheet is disposed on The right side of the second vertical piece of the silicon steel sheet is coplanar with the first vertical piece of the silicon steel sheet and is at the same height as the first vertical piece of the silicon steel sheet; the first horizontal piece of the silicon steel sheet is placed in the Above the second vertical piece of the silicon steel sheet; and the left side is in contact with the first vertical piece of the silicon steel sheet, and the right side is in contact with the third vertical piece of the silicon steel sheet; the second horizontal piece of the silicon steel sheet is disposed in the The lower side of the first vertical piece of the steel sheet; and the upper left side is in contact with the first vertical piece of the silicon steel sheet, and the right side is in contact with the second vertical piece of the steel sheet; and the third horizontal piece of the silicon steel sheet is placed in the Steel a lower side of the third vertical piece; and the left side is in contact with the second vertical piece of the steel sheet, and the upper right side is in contact with the third vertical piece of the silicon steel sheet; wherein the second combined piece comprises: a silicon steel piece a first vertical piece; a second vertical piece of the silicon steel sheet, disposed on the right side of the first vertical piece of the silicon steel sheet, and coplanar with the first vertical piece of the silicon steel sheet, and the upper end is raised by a width of the silicon steel sheet; a third vertical piece disposed on the right side of the second vertical piece of the steel sheet and coplanar with the first vertical piece of the silicon steel sheet and at the same height as the first vertical piece of the silicon steel sheet; a first horizontal piece disposed above the first vertical piece of the silicon steel sheet; and a lower left side contacting the first vertical piece of the silicon steel sheet, and a right side contacting the second vertical piece of the silicon steel sheet; a second horizontal piece disposed above the third vertical piece of the silicon steel sheet; and a left side contacting the second vertical piece of the silicon steel sheet, and a lower right side contacting the third vertical piece of the silicon steel sheet; And a third horizontal piece of the silicon steel sheet disposed under the second vertical piece of the silicon steel sheet; and the left side is in contact with the first vertical piece of the silicon steel sheet, and the right side is in contact with the third vertical piece of the steel sheet. The high leakage transformer according to claim 1, further comprising: a reactor unit having a vertical pillar; the vertical pillar further comprising: a first stack of the first silicon steel sheet and a second stack of the second steel sheet; And an insulating plate having a through hole; disposed between the first stack of the first silicon steel sheets and the second stack of the second silicon steel sheets. The high leakage transformer according to claim 2, wherein the vertical pillar further comprises: a fixing plate disposed adjacent to the first stack of the first silicon steel sheet and the second stack of the second steel sheet; a through hole; the through hole of the fixing plate is located at a position of the insulating plate. A high leakage transformer, comprising: a reactor unit having an upper horizontal pillar, a lower horizontal pillar, and a vertical pillar; the vertical pillar disposed between the upper horizontal pillar and the lower horizontal pillar; the vertical a pillar having an upper end groove for engaging the upper horizontal strut; the vertical strut having a lower end groove for engaging the lower end horizontal strut; wherein the upper horizontal strut further comprises: an upper layer of steel sheet And an upper insulating layer having a through hole; disposed under the stack of the silicon steel sheets; the lower horizontal pillar further comprising: a lower silicon steel sheet stack; and a lower insulating layer having a through hole disposed therein The silicon steel sheet is stacked above; wherein the insulating layer is selected from one of the following group materials: fiberboard and insulating paper. A high leakage transformer according to claim 4, wherein the vertical pillar further comprises: a first tantalum steel sheet sub-stack and a second tantalum steel sheet sub-stack; and an insulating plate having a through hole; The first silicon steel sheet sub-stack and the second tantalum steel sheet sub-stacked between. A high leakage transformer according to claim 5, wherein the vertical pillar further comprises: a left fixing plate having a through hole; and the first silicon steel sheet sub-stack and the second silicon steel sheet disposed The left side of the secondary stack; wherein the through holes of the left fixing plate are located at the position of the insulating plate. A high leakage transformer according to claim 6, wherein the vertical pillar further comprises: a right fixing plate having a through hole; and the first silicon steel sheet substack and the second silicon steel sheet disposed on the first steel sheet The right side of the secondary stack; the through hole of the right fixed plate is located at the position of the insulating plate. A high leakage transformer, comprising: a transformer unit, having a stack of silicon steel sheets stacked alternately between a first composite sheet and a second composite sheet; wherein the first composite sheet further comprises: a first vertical sheet of a silicon steel sheet; a vertical piece disposed on the right side of the first vertical piece of the silicon steel sheet and coplanar with the first vertical piece of the silicon steel sheet, and the upper end is raised by a width of the silicon steel sheet; the first horizontal piece of the silicon steel sheet is disposed on The top side of the first vertical piece of the steel sheet; and the lower left side is in contact with the first vertical piece of the silicon steel sheet, and the right side is in contact with the second vertical piece of the steel sheet; the second horizontal piece of the silicon steel sheet is disposed on The lower side of the second vertical piece of the steel sheet; and the upper right side is in contact with the second vertical piece of the silicon steel sheet, and the left side is in contact with the first vertical piece of the silicon steel sheet; wherein the second combined piece, The method further comprises: a first vertical piece of a silicon steel sheet; a second vertical piece of the silicon steel sheet disposed on the right side of the first vertical piece of the silicon steel sheet, and coplanar with the first vertical piece of the silicon steel sheet, and the upper end is lowered by a steel sheet Slice The first horizontal piece of the silicon steel sheet is disposed above the second vertical piece of the silicon steel sheet; and the lower right side is in contact with the second vertical piece of the silicon steel sheet, and the left side is in contact with the first vertical steel sheet a second horizontal piece of the silicon steel sheet, disposed under the first vertical piece of the silicon steel sheet; and the right side is in contact with The steel sheet has a second vertical piece, and the upper left side is in contact with the first vertical piece of the silicon steel sheet. A high leakage transformer according to claim 8, further comprising: a reactor unit having a vertical pillar; the vertical pillar further comprising: a first silicon steel sheet sub-stack and a second tantalum steel sheet sub-stack; And an insulating plate having a first through hole disposed between the first stack of the first silicon steel sheets and the second stack of the second silicon steel sheets. A high leakage transformer according to claim 9, wherein the vertical pillar further comprises: a fixing plate disposed adjacent to the first stack of the first silicon steel sheet and the second stack of the second steel sheet; a second through hole; the second through hole is opposite to the position of the insulating plate. A high leakage transformer, comprising: a reactor unit having an upper horizontal pillar, a lower horizontal pillar, and a vertical pillar; the vertical pillar disposed between the upper horizontal pillar and the lower horizontal pillar; the vertical a pillar having an upper end groove for engaging the upper horizontal strut; the vertical strut having a lower end groove for engaging the lower end horizontal strut; wherein the upper horizontal strut further comprises: an upper layer of steel sheet And an upper insulating paper layer having a through hole disposed under the stack of the silicon steel sheets; the lower horizontal pillar further comprising: a lower layer of silicon steel sheets; and a lower layer of fibrous insulating paper having a through hole disposed therein The steel sheet is stacked above; wherein the insulating layer is selected from one of the following group materials: fiberboard and insulating paper. A high leakage transformer according to claim 11, wherein the vertical pillar further comprises: a first silicon steel sheet sub-stack and a second tantalum steel sheet sub-stack; and an insulating plate having a through hole disposed in the The first silicon steel sheet sub-stack and the second tantalum steel sheet sub-stacked between. A high leakage transformer according to claim 12, wherein the vertical pillar further comprises: a left fixing plate having a through hole; and the first silicon steel sheet substack and the second silicon steel sheet disposed The left side of the secondary stack; wherein the through holes of the left fixing plate are located at the position of the insulating plate. A high leakage transformer according to claim 13, wherein the vertical pillar further comprises: a right fixing plate having a through hole; and the first silicon steel sheet sub-stack and the second silicon steel sheet disposed The right side of the secondary stack; the right fixed plate hole is located at the position of the insulating plate.