CN202796134U

CN202796134U - Acetal self-adhesion transposed conductor for high-speed train traction transformers

Info

Publication number: CN202796134U
Application number: CN201220432893.3U
Authority: CN
Inventors: 张恒光; 周红明; 王倩
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 self-adhesion transposed conductor for high-speed train traction transformers. The acetal self-adhesion transposed conductor comprises a copper strap wire conductor, an acetal paint film, a self-adhesion paint film and an insulation paper belt insulating layer, multiple channels of the acetal paint film are painted on a surface of the copper strap wire conductor, then the self-adhesion paint film is painted to from an acetal self-adhesion enamelled strap wire, a plurality of acetal self-adhesion enamelled strap 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 self-adhesion enamelled strap wires along narrow sides, a plurality of layers of insulation paper belt insulating layers are continuously and tightly wound on the outside of an acetal self-adhesion transposed conductor harness after the transposition, and finally an upper disc of traction equipment is used for winding to form the acetal self-adhesion transposed conductor. The acetal transposed conductor can improve temperature resistance grade, improves coil rigidity and is strong in high pressure resistant transformer oil resistant performance.

Description

The acetal 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 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.It is also very special that project organization requires: 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 overcome existing deficiency, and bullet train traction transformer new special transposed conductor-acetal self-adhering transposed conductor is provided.

The technical scheme that provides according to the utility model, the acetal self-adhering transposed conductor that the bullet train traction transformer is used, comprise the copper strap wire conductor, the acetal paint film, self-adhesion paint film and insulating paper strip insulating barrier, the copper strap wire conductive surface applies multi-pass acetal paint film, apply again the self-adhesion paint film, form acetal self-adhesion enameled sheet wire, some acetal self-adhesion enameled sheet wires are combined into two row that wide face is in contact with one another, on two row acetal self-adhesion enameled sheet wires and below do the same transposition that turns to along leptoprosopy, and some layers of insulating paper strip insulating barrier of the continuous closely winding in the outside of the acetal self-adhering transposed conductor wire harness after transposition, through coiling on the pulling equipment around forming the acetal self-adhering transposed conductor.

As further improvement of the utility model, described acetal paint film thickness is 0.06～0.11mm.

As further improvement of the utility model, described self-adhesion film thickness is 0.03～0.05mm.

As further improvement of the utility model, described some layers of insulating paper strip insulating barrier are stretched the rate fibrous paper by 500KV transformer turn-to-turn insulation paper or height and are consisted of.

As further improvement of the utility model, described multilayer insulation belt insulation layer thickness is 0.45～0.50mm.

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 the figure:

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

In the utility model, 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 1 of size.The copper strap wire conductive surface applies multi-pass acetal paint film 2, apply again self-adhesion paint film 3, form acetal self-adhesion enameled sheet wire, some acetal self-adhesion enameled sheet wires are combined into two row that wide face is in contact with one another, on two row acetal self-adhesion enameled sheet wires and below do the same transposition that turns to along leptoprosopy, and some layers of insulating paper strip insulating barrier 4 of the continuous closely winding in the outside of the acetal self-adhering transposed conductor wire harness after transposition, described some layers of insulating paper strip insulating barrier 4 are stretched the rate fibrous paper by 500KV transformer turn-to-turn insulation paper or height and are consisted of; Coil on the pulling equipment around forming the acetal self-adhering transposed conductor finally by crossing.

Described acetal paint film 2 thickness are 0.06 ~ 0.11mm.Described self-adhesion paint film 3 thickness are 0.03 ~ 0.05mm.Described multilayer insulation belt insulation layer 4 thickness are 0.45～0.50mm.

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

2. the acetal 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 0.06 ~ 0.11mm.

3. the acetal 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 0.03 ~ 0.05mm.

4. the acetal self-adhering transposed conductor used of bullet train traction transformer as claimed in claim 1, it is characterized in that: described some layers of insulating paper strip insulating barrier (4) are stretched the rate fibrous paper by 500KV transformer turn-to-turn insulation paper or height and are consisted of.

5. the acetal self-adhering transposed conductor used of bullet train traction transformer as claimed in claim 1, it is characterized in that: described multilayer insulation belt insulation layer (4) thickness is 0.45～0.50mm.