CN202796135U

CN202796135U - Acetal semi-hard self-adhesion transposed conductor for high-speed train traction transformers

Info

Publication number: CN202796135U
Application number: CN201220432955.0U
Authority: CN
Inventors: 张小波; 周敏芳; 俞晓兰
Original assignee: WUXI TOLY ELECTRIC CO Ltd
Current assignee: Wuxi Toly Electric Magnet Work Co ltd
Priority date: 2012-08-29
Filing date: 2012-08-29
Publication date: 2013-03-13
Anticipated expiration: 2022-08-29

Abstract

The utility model relates to an acetal semi-hard self-adhesion transposed conductor for high-speed train traction transformers. The acetal semi-hard self-adhesion transposed conductor comprises a semi-hard copper strap wire conductor and further comprises an acetal paint film, a self-adhesion paint film and a plurality of layers of 500kV transformer interturn insulation paper or high extending rate fiber paper, the acetal paint film is painted on the outside of the semi-hard copper strap wire conductor, the self-adhesion paint film is painted on the outside of the acetal paint film to form an acetal semi-hard self-adhesion enamelled wire, a plurality of acetal semi-hard self-adhesion enamelled wires are combined into two rows with broadsides which are mutually contacted, transposition in a same steering direction is carried out on the upper sides and the lower sides of the two rows of the acetal semi-hard self-adhesion enamelled wires along narrow sides, the plurality of layers of 500kV transformer interturn insulation paper or high extending rate fiber paper are continuously and tightly wound on the outside of a transposed conductor harness after the transposition, and finally an upper disc of traction equipment is used for winding to form the acetal semi-hard self-adhesion transposed conductor. The acetal semi-hard self-adhesion transposed conductor improves mechanical strength, improves insulation grade and is high in high pressure resistant and transformer oil resistant performance.

Description

The acetal semihard self-adhering transposed conductor that the bullet train traction transformer is used

Technical field

The utility model discloses the bullet train traction transformer with new special transposed conductor-acetal semihard self-adhering transposed conductor, belong to the transformer technology field.

Background technology

Bullet train is sports equipment, and its traction transformer is compared with common power transformer, and environment for use is more abominable, shows as that the space is little, temperature is high, vibrations are large.Project organization is also very special: weight wants light, and volume is little, and it is large that ampacity is wanted, and loss is little.Require thus its core product transposed conductor heatproof to want high, it is high that mechanical strength is wanted, and crooked pliability will be got well, and electrical property will be got well.The present speed per hour 300～380km/h of China train traction transformer is with the main dependence on import of transposed conductor.

Summary of the invention

The purpose of this utility model is to be to overcome deficiency of the prior art, thereby a kind of bullet train traction transformer new special transposed conductor-acetal semihard self-adhering transposed conductor is provided; This acetal semihard self-adhering transposed conductor can improve mechanical strength; The class of insulation improves; High pressure resistant, the transformer oil resistant performance is strong.

The technical scheme that provides according to the utility model, the acetal semihard self-adhering transposed conductor that the bullet train traction transformer is used comprises semihard copper strap wire conductor, the acetal paint film, self-adhesion paint film and some layers of insulating paper, at the outside acetal paint film that applies of described semihard semihard copper strap wire conductor, the outside self-adhesion paint film that applies of described acetal paint film forms acetal semihard self-adhesive enameled wire, some acetal semihard self-adhesive enameled wires are combined into two row that wide face is in contact with one another, on two row acetal semihard self-adhesive enameled wires and below do the same transposition that turns to along leptoprosopy, and some layers of insulating paper of the continuous closely winding in the outside of the transposed conductor wire harness after transposition, coil on the pulling equipment around forming acetal semihard self-adhering transposed conductor finally by crossing.

Further improve as the utility model, described acetal paint film thickness is 0.09 ~ 0.12mm.

Further improve as the utility model, described self-adhesion film thickness is 0.04 ~ 0.06mm.

Further improve as the utility model, described insulating paper is that 500kV transformer turn-to-turn insulation paper or height are stretched the rate fibrous paper.

Further improve as the utility model, described some layers of insulating paper thickness are 1.28 ~ 1.42mm.

Compared with the prior art the utility model has following characteristics:

(1), mechanical strength improves;

(2), the class of insulation improves;

(3), high pressure resistant, the transformer oil resistant performance is strong.

Description of drawings

Fig. 1 is cross sectional representation of the present utility model.

Embodiment

The utility model is described in further detail below in conjunction with concrete drawings and Examples.

As shown in Figure 1: described acetal semihard self-adhering transposed conductor comprises semihard copper strap wire conductor 1, acetal paint film 2, self-adhesion paint film 3 and some layers of insulating paper 4.

At the described semihard copper strap wire conductor 1 outside acetal paint film 2 that applies, the described acetal paint film 2 outside self-adhesion paint films 3 that apply form acetal semihard self-adhesive enameled wire, some acetal semihard self-adhesive enameled wires are combined into two row that wide face is in contact with one another, on two row acetal semihard self-adhesive enameled wires and below do the same transposition that turns to along leptoprosopy, and some layers of insulating paper 4 of the continuous closely winding in the outside of the transposed conductor wire harness after transposition, coil on the pulling equipment around forming acetal semihard self-adhering transposed conductor finally by crossing.

Described insulating paper is that 500kV transformer turn-to-turn insulation paper or height are stretched the rate fibrous paper.

Described acetal paint film 2 thickness are 0.09 ~ 0.12mm, and described self-adhesion paint film 3 thickness are 0.04 ~ 0.06mm.Described some layers of insulating paper 4 thickness are 1.28～1.42mm.

In the utility model, semihard copper strap wire conductor 1 at first be by on draw the copper bar through roller cold rolling from about, four orientation, front and back are contracted to required size with the copper shank diameter, then through the extrusion die continuously extruding and molding, next adopts drawing process that the copper bar is drawn into more accurately copper strap wire conductor of size, adopt again the method for flow harden to make copper strap wire conductor generation mechanical deformation through semirigid device, semihard intensity improves, form semihard copper strap wire conductor 1, again at semihard copper strap wire conductor 1 outside acetal paint film 2 and the self-adhesion paint film 3 of applying, form acetal semihard self-adhesive enameled wire, at last, adopt the magnetic damping technology to control insulating paper 4 wrapped tension force in the time of some acetal semihard self-adhesive enameled wire continuous shiftings in good time, insulating paper 4 is wrapped on the transposed conductor wire harness, coils on the pulling equipment around forming acetal semihard self-adhering transposed conductor finally by crossing.

Acetal semihard self-adhering transposed conductor described in the utility model can be used as the semihard transposed conductor that the bullet train traction transformer uses, this transposed conductor is by the improvement to equipment, technique, adopt the method for flow harden to make copper conductor generation mechanical deformation, strengthen deformation resistance and the shock resistance of winding; Insulating paper layer provides higher height insulation stability, the useful life of final extension coil.

The utility model is applicable to the winding wire that the high-power goods train transformer of 300～380km/h and above passenger train and 7200kW, 9600kW uses.

Claims

1. acetal semihard self-adhering transposed conductor that the bullet train traction transformer is used, comprise semihard copper strap wire conductor (1), also comprise acetal paint film (2), self-adhesion paint film (3) and some layers of insulating paper (4), it is characterized in that: at the outside acetal paint film (2) that applies of described semihard copper strap wire conductor (1), the outside self-adhesion paint film (3) that applies of described acetal paint film (2) forms acetal semihard self-adhesive enameled wire, some acetal semihard self-adhesive enameled wires are combined into two row that wide face is in contact with one another, on two row acetal semihard self-adhesive enameled wires and below do the same transposition that turns to along leptoprosopy, and the continuous some layers of insulating paper (4) that closely twine in the outside of the transposed conductor wire harness after transposition, through coiling on the pulling equipment around forming acetal semihard self-adhering transposed conductor.

2. the acetal semihard self-adhering transposed conductor used of bullet train traction transformer as claimed in claim 1, it is characterized in that: described insulating paper is that 500kV transformer turn-to-turn insulation paper or height are stretched the rate fibrous paper.

3. the acetal semihard self-adhering transposed conductor used of bullet train traction transformer as claimed in claim 1, it is characterized in that: described acetal paint film (2) thickness is 0.09 ~ 0.12mm.

4. the acetal semihard self-adhering transposed conductor used of bullet train traction transformer as claimed in claim 1, it is characterized in that: described self-adhesion paint film (3) thickness is 0.04 ~ 0.06mm.

5. the acetal semihard self-adhering transposed conductor used of bullet train traction transformer as claimed in claim 1, it is characterized in that: described some layers of aromatic polyamides insulating paper (4) thickness is 1.28 ~ 1.42mm.