阅读说明：本技术 一种非晶合金油浸式变压器器身绝缘结构的装配方法 (Assembly method of amorphous alloy oil-immersed transformer body insulation structure ) 是由 陈杨 顾伟 张志键 田野 郝柱 杨家泉 庄稼 朱慧平 于 2020-11-18 设计创作，主要内容包括：本发明公开了一种非晶合金油浸式变压器器身绝缘结构的装配方法,包括：将A相线圈、B相线圈和C相线圈依次接触放置；将两块线圈相间绝缘板分别放置于A和B之间以及B和C之间；将两块内框铁心上轭绝缘板分别安装于A和B接触位置处的上表面以及B和C接触位置处的上表面；将两块内框铁心下轭绝缘板分别安装于A和B接触位置处的下表面以及B和C接触位置处的下表面；将两块外框铁心绝缘板分别安装于A一侧的外表面以及C一侧的外表面；将两块外框铁心上轭绝缘板分别安装于A一侧的上表面以及C一侧的上表面；将两块外框铁心下轭绝缘板分别安装于A一侧的下表面以及C一侧的下表面,本发明有效提升了非晶合金油浸式变压器的绝缘性能。(The invention discloses an assembly method of an insulating structure of a body of an amorphous alloy oil-immersed transformer, which comprises the following steps: sequentially placing the phase A coil, the phase B coil and the phase C coil in contact; placing two coil interphase insulation plates between A and B and between B and C respectively; respectively installing two inner frame iron core upper yoke insulation plates on the upper surface of the contact position A and the contact position B and the upper surface of the contact position B and the contact position C; respectively installing two inner frame iron core lower yoke insulation plates on the lower surfaces of the contact positions A and B and the lower surfaces of the contact positions B and C; respectively installing two outer frame iron core insulating plates on the outer surface of one side A and the outer surface of one side C; respectively installing two outer frame iron core upper yoke insulation plates on the upper surface of the side A and the upper surface of the side C; the two outer frame iron core lower yoke insulation plates are respectively arranged on the lower surface of the side A and the lower surface of the side C, and the insulation performance of the amorphous alloy oil-immersed transformer is effectively improved.)

1. An assembly method of an insulating structure of a body of an amorphous alloy oil-immersed transformer is characterized by comprising the following steps:

sequentially placing the phase A coil (1), the phase B coil (2) and the phase C coil (3) in contact;

two coil interphase insulation plates (4) are respectively placed between the phase A coil (1) and the phase B coil (2) and between the phase B coil (2) and the phase C coil (3);

two inner frame iron core upper yoke insulation plates (5) are respectively arranged on the upper surface of the contact position of the phase A coil (1) and the phase B coil (2) and the upper surface of the contact position of the phase B coil (2) and the phase C coil (3);

two inner frame iron core lower yoke insulation plates (6) are respectively arranged on the lower surface of the contact position of the phase A coil (1) and the phase B coil (2) and the lower surface of the contact position of the phase B coil (2) and the phase C coil (3);

two outer frame iron core insulation plates (7) are respectively arranged on the outer surface of one side of the A-phase coil (1) far away from the B-phase coil (2) and the outer surface of one side of the C-phase coil (3) far away from the B-phase coil (2);

two outer frame iron core upper yoke insulation plates (8) are respectively arranged on the upper surface of one side of the A-phase coil (1) far away from the B-phase coil (2) and the upper surface of one side of the C-phase coil (3) far away from the B-phase coil (2);

two outer frame iron core lower yoke insulation plates (9) are respectively arranged on the lower surface of the A-phase coil (1) far away from the B-phase coil (2) and the lower surface of the C-phase coil (3) far away from the B-phase coil (2).

2. The method for assembling the insulating structure of the body of the amorphous alloy oil-filled transformer according to claim 1, further comprising: and a layer of electrical white latex is coated on the surfaces of the inter-coil insulation board (4), the phase A coil (1), the phase B coil (2) and the phase C coil (3).

3. The method for assembling the insulating structure of the body of the amorphous alloy oil-filled transformer according to claim 1, further comprising: the contact part of the inner frame iron core upper yoke insulation plate (5) and the coil interphase insulation plate (4) and the contact part of the inner frame iron core lower yoke insulation plate (6) and the coil interphase insulation plate (4) are firmly bonded by electric white latex.

4. The method for assembling the insulating structure of the body of the amorphous alloy oil-filled transformer according to claim 1, further comprising: the contact part of the outer frame iron core upper yoke insulation plate (8) and the outer frame iron core insulation plate (7) and the contact part of the outer frame iron core lower yoke insulation plate (9) and the outer frame iron core insulation plate (7) are firmly bonded by electric white latex.

5. The method for assembling the insulating structure of the body of the amorphous alloy oil-filled transformer according to any one of claims 2 to 4, wherein the method comprises the following steps: the thickness of the electrical white latex is less than or equal to 0.5 mm.

6. The method for assembling the insulating structure of the body of the amorphous alloy oil-filled transformer according to claim 1, wherein the method comprises the following steps: the coil interphase insulating plate (4), the inner frame iron core upper yoke insulating plate (5) and the inner frame iron core lower yoke insulating plate (6) form an I-shaped structure.

7. The method for assembling the insulating structure of the body of the amorphous alloy oil-filled transformer according to claim 1, wherein the method comprises the following steps: the outer frame iron core insulating plate (7), the outer frame iron core upper yoke insulating plate (8) and the outer frame iron core lower yoke insulating plate (9) form a [ -shaped structure.

Technical Field

The invention relates to the technical field of amorphous alloy oil-immersed transformers, in particular to an assembling method of an insulating structure of a transformer body of an amorphous alloy oil-immersed transformer.

Background

Under the impact of short-circuit current, the high-low voltage coil can deform to a certain degree, and as an amorphous iron core hung on the high-low voltage coil, when the amorphous alloy oil-immersed transformer is impacted by external force, the amorphous alloy oil-immersed transformer can displace, and deformation phenomena occur at the lap joint of a lower iron yoke and the inner R angular position, and iron core scraps can be generated by the phenomena, so that the insulation resistance is unqualified, and therefore the insulation performance of the amorphous alloy oil-immersed transformer body needs to be improved through an insulation structure.

Disclosure of Invention

The invention aims to provide an assembly method of an insulating structure of an amorphous alloy oil-immersed transformer body, which aims to solve the problem that in the prior art, insulation resistance is unqualified due to the generation of iron core scraps.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention provides an assembly method of an insulating structure of a body of an amorphous alloy oil-immersed transformer, which comprises the following steps:

sequentially placing the phase A coil, the phase B coil and the phase C coil in contact;

placing two coil interphase insulation plates between the phase A coil and the phase B coil and between the phase B coil and the phase C coil respectively;

two inner frame iron core upper yoke insulation plates are respectively arranged on the upper surface of the contact position of the phase A coil and the phase B coil and the upper surface of the contact position of the phase B coil and the phase C coil;

two inner frame iron core lower yoke insulation plates are respectively arranged on the lower surface of the contact position of the phase A coil and the phase B coil and the lower surface of the contact position of the phase B coil and the phase C coil;

two outer frame iron core insulation plates are respectively arranged on the outer surface of the A-phase coil far away from the B-phase coil and the outer surface of the C-phase coil far away from the B-phase coil;

two outer frame iron core upper yoke insulation plates are respectively arranged on the upper surface of the A-phase coil far away from the B-phase coil and the upper surface of the C-phase coil far away from the B-phase coil;

two outer frame iron core lower yoke insulation plates are respectively arranged on the lower surface of the A-phase coil far away from the B-phase coil and the lower surface of the C-phase coil far away from the B-phase coil.

Further, the assembling method of the insulating structure of the amorphous alloy oil-immersed transformer body further comprises the following steps: and coating a layer of electrical white latex on the surfaces of the coil interphase insulating plate, the phase A coil, the phase B coil and the phase C coil.

Further, the assembling method of the insulating structure of the amorphous alloy oil-immersed transformer body further comprises the following steps: and firmly bonding the contact part of the inner frame iron core upper yoke insulation plate and the coil interphase insulation plate and the contact part of the inner frame iron core lower yoke insulation plate and the coil interphase insulation plate by using electrical white latex.

Further, the assembling method of the insulating structure of the amorphous alloy oil-immersed transformer body further comprises the following steps: and adhering the contact part of the outer frame iron core upper yoke insulating plate and the outer frame iron core insulating plate and the contact part of the outer frame iron core lower yoke insulating plate and the outer frame iron core insulating plate with electrical white latex.

Furthermore, the thickness of the electrical white latex is less than or equal to 0.5 mm.

Furthermore, the coil interphase insulating plate, the inner frame iron core upper yoke insulating plate and the inner frame iron core lower yoke insulating plate form an I-shaped structure.

Furthermore, the outer frame iron core insulating plate, the outer frame iron core upper yoke insulating plate and the outer frame iron core lower yoke insulating plate form a [ -shaped structure.

Compared with the prior art, the invention has the beneficial effects that:

the invention provides an assembly method of an amorphous alloy oil-immersed transformer body insulation structure, which is characterized in that coil interphase insulation plates, an inner frame iron core upper yoke insulation plate, an inner frame iron core lower yoke insulation plate, an outer frame iron core upper yoke insulation plate and an outer frame iron core lower yoke insulation plate are combined into an integral structure and are firmly connected with amorphous alloy oil-immersed transformer high and low voltage coils through iron cores, so that the insulation performance of the amorphous alloy oil-immersed transformer is effectively improved.

Drawings

Fig. 1 is a schematic structural diagram of an amorphous alloy oil-immersed transformer high-low voltage coil on which an insulation structure for a transformer body provided by an embodiment of the present invention is mounted.

In the figure: the coil comprises a 1-A phase coil, a 2-B phase coil, a 3-C phase coil, a 4-coil interphase insulating plate, a 5-inner frame iron core upper yoke insulating plate, a 6-inner frame iron core lower yoke insulating plate, a 7-outer frame iron core insulating plate, an 8-outer frame iron core upper yoke insulating plate and a 9-outer frame iron core lower yoke insulating plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the invention provides an assembly method of an insulating structure of a body of an amorphous alloy oil-immersed transformer, which comprises the following steps:

coating a layer of electrical white emulsion with the thickness of 0.5mm on the surfaces of the inter-coil insulation board 4, the phase A coil 1, the phase B coil 2 and the phase C coil 3;

the phase A coil 1, the phase B coil 2 and the phase C coil 3 are placed in horizontal contact from right to left in sequence facing the low-voltage copper bar;

placing two inter-coil insulation plates 4 between the phase A coil 1 and the phase B coil 2 and between the phase B coil 2 and the phase C coil 3 respectively;

two inner frame iron core upper yoke insulation plates 5 are respectively arranged on the upper surface of the contact position of the phase A coil 1 and the phase B coil 2 and the upper surface of the contact position of the phase B coil 2 and the phase C coil 3;

two inner frame iron core lower yoke insulation plates 6 are respectively arranged on the lower surfaces of the contact positions of the phase A coil 1 and the phase B coil 2 and the lower surfaces of the contact positions of the phase B coil 2 and the phase C coil 3;

the contact position of the inner frame iron core upper yoke insulation plate 5 and the coil interphase insulation plate 4 and the contact position of the inner frame iron core lower yoke insulation plate 6 and the coil interphase insulation plate 4 are firmly bonded by using 0.5mm thick electric white latex;

two outer frame iron core insulation plates 7 are respectively arranged on the outer surface of the A-phase coil 1 far away from the B-phase coil 2 and the outer surface of the C-phase coil 3 far away from the B-phase coil 2;

two outer frame iron core upper yoke insulation plates 8 are respectively arranged on the upper surface of the A-phase coil 1 far away from the B-phase coil 2 and the upper surface of the C-phase coil 3 far away from the B-phase coil 2;

two outer frame iron core lower yoke insulation plates 9 are respectively arranged on the lower surface of the A-phase coil 1 far away from the B-phase coil 2 and the lower surface of the C-phase coil 3 far away from the B-phase coil 2;

the contact position of the outer frame iron core upper yoke insulation plate 8 and the outer frame iron core insulation plate 7 and the contact position of the outer frame iron core lower yoke insulation plate 9 and the outer frame iron core insulation plate 7 are firmly bonded by electrical white emulsion with the thickness of 0.5 mm; the coil interphase insulation plate 4, the inner frame iron core upper yoke insulation plate 5, the inner frame iron core lower yoke insulation plate 6, the outer frame iron core insulation plate 7, the outer frame iron core upper yoke insulation plate 8 and the outer frame iron core lower yoke insulation plate 9 are all used as insulation structures between the amorphous alloy oil-immersed transformer high-low voltage coil and the amorphous iron core, so that the generation of iron core scraps is prevented, and the unqualified insulation resistance after short circuit can be avoided.

The inter-coil insulation plates 4, the inner frame iron core upper yoke insulation plates 5 and the inner frame iron core lower yoke insulation plates 6 form an I-shaped structure, and the I-shaped structure is convenient for installing the iron core on the high-low voltage coil of the amorphous alloy oil-immersed transformer.

The outer frame iron core insulating plate 7, the outer frame iron core upper yoke insulating plate 8 and the outer frame iron core lower yoke insulating plate 9 form a [ -shaped structure, and the [ -shaped structure is convenient for installing the iron core on the high-low voltage coil of the amorphous alloy oil-immersed transformer.

According to the amorphous alloy oil-immersed transformer, the coil interphase insulating plates 4, the inner frame iron core upper yoke insulating plates 5, the inner frame iron core lower yoke insulating plates 6, the outer frame iron core insulating plates 7, the outer frame iron core upper yoke insulating plates 8 and the outer frame iron core lower yoke insulating plates 9 are combined into an integral structure and are firmly connected with the amorphous alloy oil-immersed transformer high-low voltage coil through the iron core, so that the insulating property of the amorphous alloy oil-immersed transformer is effectively improved.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.