CN208400548U

CN208400548U - A kind of EHV transformer folder screen combined shifting lead

Info

Publication number: CN208400548U
Application number: CN201821195591.2U
Authority: CN
Inventors: 孙国平; 冯四平; 洪海
Original assignee: JIANGSU ZHONGRONG ELECTRIC CO Ltd
Current assignee: JIANGSU ZHONGRONG ELECTRIC CO Ltd
Priority date: 2018-07-26
Filing date: 2018-07-26
Publication date: 2019-01-18
Anticipated expiration: 2028-07-26

Abstract

The utility model discloses a kind of EHV transformer folder screen combined shifting leads, the circumferential and Formation cross-section that acetal insulating lacquer layer is coated in copper strap wire is rectangular-shaped enamel-cover cable architecture, self-adhesion paint is coated in the upper surface of enameled wire, odd number, and at least three enameled wires are divided to two groups of arranged stackeds, an enameled wire unit is formed after every group of enameled wire arranged stacked, two enameled wire units are arranged symmetrically, and the quantity of the enameled wire in two enameled wire units is identical, the top of two groups of enameled wire units is arranged in a remaining enameled wire, lining paper gap is equipped between two enameled wire units, several middle liner paper layerings are set in lining paper gap, surrounding layer is coated on the outside of all enameled wires.Middle liner paper is layered by the utility model to be arranged, and the gap formed between two groups of enameled wire units increases the heat dissipation area of enameled wire convenient for heat dissipation, guarantees heat dissipation effect, and structure is simple, cost is low, easy to produce.

Description

A kind of EHV transformer folder screen combined shifting lead

Technical field:

The utility model relates to a kind of EHV transformer folder screen combined shifting leads.

Background technique:

Existing folder screen combined shifting lead heat exchange area is small, and heat dissipation effect is poor.Patent 201310490620.3 provides one The special-shaped transposed conductor of kind, the special-shaped metal that the metallic conductor of enameled sheet wire is provided with baltimore groove for the center side Kuan Mian are led Body improves cooling effect and current-carrying capacity to increase wire table area and heat dissipation area；And each column enameled sheet wire it is upper, Under the baltimore groove face arrangement in adjacent two wide faces of enameled sheet wire be capable of forming rectangle oil duct, cooling effect can be further increased Fruit；But in actual production manufacturing process, the manufacturing cost of special-shaped transposed conductor is high, and in winding process, it is ensured that each column The baltimore groove face arrangement in upper and lower two adjacent wide faces of enameled sheet wire of enameled sheet wire is capable of forming the arrangement knot of rectangle oil duct Structure is higher to equipment and manufacturing technique requirent, general difficult to realize.

Summary of the invention:

The utility model is to provide a kind of EHV transformer folder to solve the above-mentioned problems of the prior art Shield combined shifting lead.

Technical solution used by the utility model has: a kind of EHV transformer folder screen combined shifting lead, including Copper strap wire, acetal insulating lacquer layer, self-adhesion paint, surrounding layer and middle liner paper, the acetal insulating lacquer layer are coated in the week of copper strap wire To and Formation cross-section be rectangular-shaped enamel-cover cable architecture, self-adhesion paint is coated in the upper surface of enameled wire, odd number and at least three Enameled wire is divided to two groups of arranged stackeds, forms an enameled wire unit, two enameled wire units pair after every group of enameled wire arranged stacked Claim arrangement, and the quantity of the enameled wire in two enameled wire units is identical, a remaining enameled wire is arranged in two groups of enameled wire lists The top of member is equipped with lining paper gap between two enameled wire units, and several middle liner papers layerings are set in lining paper gap, surrounding layer It is coated on the outside of all enameled wires；The middle liner paper includes the lining paper body of two rectangular shapeds, each lining paper body pair The corner of enameled wire bottom surface in each enameled wire unit should be wrapped in.

Further, in the enameled wire unit at position second from the bottom to each enameled wire bottom between top layer position The corner in face one lining paper body of corresponding package.

Further, the length of the self-adhesion paint is 1/3 of long side length in enameled wire section.

Further, the coating thickness of the self-adhesion paint is 0.15mm~0.25mm.

The utility model has the following beneficial effects:

Middle liner paper is layered by the utility model to be arranged, and the gap formed between two groups of enameled wire units increases convenient for heat dissipation Add the heat dissipation area of enameled wire, guarantees heat dissipation effect, and structure is simple, cost is low, easy to produce.

Detailed description of the invention:

Fig. 1 is the utility model structure chart.

Fig. 2 is the structure chart of the utility model middle liner paper.

Specific embodiment:

The utility model will be further described below with reference to the accompanying drawings.

As depicted in figs. 1 and 2, a kind of EHV transformer of the utility model is flat with folder screen combined shifting lead, including copper Line 1, acetal insulating lacquer layer 2, self-adhesion paint 3, surrounding layer 4 and middle liner paper 5, acetal insulating lacquer layer 2 are coated in the circumferential direction of copper strap wire 1 And Formation cross-section is rectangular-shaped enamel-cover cable architecture, self-adhesion paint 3 is coated in the upper surface of enameled wire, odd number and at least three Enameled wire is divided to two groups of arranged stackeds, forms an enameled wire unit, two enameled wire units pair after every group of enameled wire arranged stacked Claim arrangement, and the quantity of the enameled wire in two enameled wire units is identical, a remaining enameled wire is arranged in two groups of enameled wire lists The top of member.Lining paper gap 10 is equipped between two enameled wire units, several layerings of middle liner paper 5 are set in lining paper gap 10, Surrounding layer 4 is coated on the outside of all enameled wires.

Middle liner paper 5 in the utility model includes the lining paper body 51 of two rectangular shapeds, the corresponding packet of each lining paper body 51 It is rolled in the corner of enameled wire bottom surface in each enameled wire unit.

Corner in enameled wire unit at position second from the bottom to each enameled wire bottom surface between top layer position is equal One lining paper body 51 of corresponding package, i.e., the enameled wire of the bottom does not wrap up lining paper body 51 in enameled wire unit.

The length of self-adhesion paint 3 is 1/3 of long side length in enameled wire section.The coating thickness of self-adhesion paint 3 be 0.15mm~ 0.25mm。

The utility model will be divided into sectional type structure by whole middle liner paper in the prior art, guarantee two groups of enameled wire units it Between not exclusively filled by middle liner paper 5, increase the heat dissipation area of enameled wire, guarantee heat dissipation effect.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art It for art personnel, can also make several improvements without departing from the principle of this utility model, these improvement also should be regarded as The protection scope of the utility model.

Claims

1. a kind of EHV transformer folder screen combined shifting lead, it is characterised in that: including copper strap wire (1), acetal insulated paint Layer (2), self-adhesion paint (3), surrounding layer (4) and middle liner paper (5), the acetal insulating lacquer layer (2) are coated in the week of copper strap wire (1) To and Formation cross-section be rectangular-shaped enamel-cover cable architecture, self-adhesion paint (3) be coated in enameled wire upper surface, odd number and be at least Three enameled wires are divided to two groups of arranged stackeds, form an enameled wire unit, two enameled wire lists after every group of enameled wire arranged stacked Member is arranged symmetrically, and the quantity of the enameled wire in two enameled wire units is identical, and a remaining enameled wire is arranged in two groups of enamel-covers The top of line unit is equipped with lining paper gap (10) between two enameled wire units, and several middle liner papers (5) layerings are set between lining paper In gap (10), surrounding layer (4) is coated on the outside of all enameled wires；The middle liner paper (5) includes two rectangular shapeds Lining paper body (51), the corresponding corner for being wrapped in enameled wire bottom surface in each enameled wire unit of each lining paper body (51).

2. EHV transformer as described in claim 1 folder screen combined shifting lead, it is characterised in that: the enameled wire list Corner's one lining paper of corresponding package in member at position second from the bottom to each enameled wire bottom surface between top layer position Body (51).

3. EHV transformer as described in claim 1 folder screen combined shifting lead, it is characterised in that: the self-adhesion paint (3) length is 1/3 of long side length in enameled wire section.

4. EHV transformer as described in claim 1 folder screen combined shifting lead, it is characterised in that: the self-adhesion paint (3) coating thickness is 0.15mm~0.25mm.