CN203311886U - Transformer-used polyester-composited double-insulated enameled wire - Google Patents

Abstract

The utility model relates to the transformer-used enameled wire technical field, and particularly a transformer-used polyester-composited double-insulation enameled wire. The transformer-used polyester-composited double-insulation enameled wire includes a copper conductor; the exterior of the copper conductor is coated with a layer of insulating paint; and the exterior of the insulating paint is provided with a PET polyester film. With the above structure adopted, the enameled wire of the utility model has a polyester-composited double-insulation performance and can withstand high temperature from 180 DEG C to 200 DEG C, and therefore, the insulation performance and anti-short circuit performance of the enameled wire can be effectively improved, and the peeling of the enameled wire and damage on the enameled wire in a winding process can be avoided, as a result, the use performance of a product can be improved, and the service life of the product can be prolonged. The transformer-used polyester-composited double-insulation enameled wire of the utility model is advantageous in reasonable design, simple structure, low cost and the like, and can be widely used in small-size power transformer windings below 315kVA and in electric fields which have high requirements for high temperature resistance.

Description

Transformer polyester Composite Double enamel insulated wire

Technical field

The utility model relates to transformer enamelled wire technical field, is specifically related to transformer polyester Composite Double enamel insulated wire.

Background technology

At present, in the transformer technology field, people thirst for solving the problem of sudden short circuit.Transformer, in use if there is sudden short circuit, not only can cause transformer to damage, burn phenomenon, and can damage other circuit elements devices.And from the transformer short circuit fault analysis of causes, wherein topmost reason is the damage of transformer coil enamelled wire, thereby cause the sudden short circuit phenomenon of transformer.The enamelled wire of prior art, usually in the outside of wire, scribble one deck insulating varnish, and the thickness of insulating varnish is 0.02～0.06mm, transformer coil, in winding process, due to misoperation, the enamelled wire decortication easily occurs, damages phenomenon, perhaps after long-time the use, the insulation property of enamelled wire reduce, and finally cause the generation of sudden short circuit phenomenon, thereby have reduced serviceability and the useful life of product.

Summary of the invention

The transformer that the purpose of this utility model is to provide a kind of reasonable in design, simple in structure, good insulation preformance, avoid occurring peeling, damage phenomenon is with polyester Composite Double enamel insulated wire.

In order to solve the existing problem of background technology, the utility model is by the following technical solutions: transformer polyester Composite Double enamel insulated wire, comprise copper conductors, the outside of described copper conductors scribbles one deck insulating varnish, and the outside of described insulating varnish is provided with the PET mylar.

Further, the thickness of described PET mylar is 0.03～1mm.

The utlity model has following beneficial effect: transformer described in the utility model, with polyester Composite Double enamel insulated wire, mainly comprises copper conductors, wherein, scribbles one deck insulating varnish in the outside of copper conductors, and is provided with the PET mylar in the outside of insulating varnish; The utility model adopts said structure, make its enamelled wire have polyester Composite Double insulation property, and high temperature resistant is 180～200 ℃, thereby effectively improve anti-insulating properties and the anti-short circuit capability of enamelled wire, avoid in the coiling process, enamelled wire decortication occurs, damages phenomenon, improves product serviceability and useful life.In addition, the utlity model has the characteristics such as reasonable in design, simple in structure, that cost is low, but in the following compact electrical transformers winding of extensive use 315kVA and need in the motor electric field of the high request such as high temperature resistant.

The accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Embodiment

The utility model is described in more detail below in conjunction with accompanying drawing.

As shown in Figure 1, transformer, with polyester Composite Double enamel insulated wire, comprises copper conductors 1, and the outside of described copper conductors 1 scribbles one deck insulating varnish 2, and the outside of described insulating varnish 2 is provided with PET mylar 3; Wherein, the thickness of described PET mylar 3 is 0.03～1mm.In the present embodiment, by the PET mylar, the copper conductors that scribbles insulating varnish is coated, because the PET mylar has high temperature resistant, proof voltage good insulation preformance, and thinner thickness, thereby can make the anti-short circuit capability of enamelled wire strong, effectively improve product useful life.The transformer that adopts polyester Composite Double enamel insulated wire to manufacture, through test of many times and test, solved the technical barrier of the sudden short circuit of transformer effectively.

Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, other modifications that those of ordinary skills make the technical solution of the utility model or be equal to replacement, only otherwise break away from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of claim scope of the present utility model.

Claims (2)

1. transformer, with polyester Composite Double enamel insulated wire, comprises copper conductors (1), it is characterized in that, the outside of described copper conductors (1) scribbles one deck insulating varnish (2), and the outside of described insulating varnish (2) is provided with PET mylar (3).

2. transformer according to claim 1, with polyester Composite Double enamel insulated wire, is characterized in that, the thickness of described PET mylar (3) is 0.03～1mm.

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