CN201796621U - Transposed conductor - Google Patents

Abstract

The utility model relates to a transposed conductor, which comprises two lines of enameled wire groups, interleaving paper, a transposed wire and a coating insulating layer. The interleaving paper is located between the two lines of enameled wire groups, the transposed wire is located at a central position above the two lines of enameled wire groups, the coating insulating layer wraps outer layers of the enameled wire groups and the transposed wire, and each enameled wire comprises a copper flat wire and an insulating varnish layer wrapping the outer surface of the copper flat wire. The transposed conductor can reduce the volume of a transformer, is convenient in heat dissipation, and has wide application prospect.

Description

A kind of transposed conductor

[technical field]

The utility model relates to a kind of transposed conductor of Transformer Winding coil, belongs to the winding wire technical field.

[background technology]

Single bag paper covered wire and composite conductor are as the history in existing more than 100 year of winding of transformer, because its production process is simple, with low content of technology, cheap, the vitality on market continues into the present always.But, along with the continuous development of electric utility, the requirement of power transmission and distribution is also improved constantly, progressively the direction to superhigh pressure, high-power transformer develops; Not only the coil windings to transformer has proposed the loss of reduction circulating current, reduced volume, reduce operating temperature, reduce the requirement of electromagnetic consumable, also require transformer to have stronger Short Circuit withstand burst capability, under this condition, transposed conductor produces immediately, the broken hair exhibition is imperfect, has derived series such as self-adhering transposed conductor, semihard self-adhering transposed conductor, no paper insulation cluster transposed conductor.Transposed conductor is compared with other winding materials such as paper covered wire, and following advantage is arranged:

(1) can dwindle the barred window size, increase copper factor, thereby can dwindle machine volume, saving materials;

(2) in the transformer manufacture process also because coiling is convenient can reduce cost greatly and reduce the probability that quality problems occur;

(3) transformer has increased economic benefit and social benefit owing to having reduced eddy current loss and circulating current loss again greatly in running.

At present, along with the capacity increase of transformer, heavy in section transposed conductor has obtained great use, and the caloric value of coil rises gradually, and heat dispersion is not good, has improved the temperature of transformer, has reduced its useful life.These problems have caused transformer often because of the excess load heating causes fault, cause transformer to reduce useful life, and volume of transformer increases, and cost improves.

For avoiding above-mentioned technical problem, the necessary transposed conductor that a kind of advanced person is provided is to overcome described defective of the prior art.

[utility model content]

For addressing the above problem, the purpose of this utility model is to provide a kind of transposed conductor that reduces volume of transformer and be convenient to dispel the heat.

For achieving the above object, the technical scheme that the utility model is taked is: a kind of transposed conductor, it comprises two row enamelled wire groups, lining paper between two row enamelled wire groups, being positioned at two row enamelled wire group top center positions is provided with a transposition line and is coated on each enamelled wire group and the outer field outsourcing insulation of transposition line, wherein, described each enamelled wire insulation enamelled coating of comprising a copper strap wire and being coated on the copper strap wire outer surface.

Transposed conductor of the present utility model also can be set to: every row enamelled wire group comprises 4 enamelled wires.

Transposed conductor of the present utility model also can be set to: the insulation enamelled coating outer surface of described enamelled wire further is provided with a self-adhesive layer.

Compared with prior art, the utlity model has following beneficial effect:

1. lining paper is set between the two row enamelled wires makes the wires carry electric current big, and can reduce eddy current loss, turn-to-turn insulation is reliable;

2. can dwindle the barred window size, increase copper factor, thereby can dwindle machine volume, saving materials;

The root enamelled wire have face very one deck self-adhesive layer under certain technological temperature, adhered to one anotherly become as a whole together, increase coil Short Circuit withstand burst capability from forming several times ground.

[description of drawings]

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

Fig. 2 is the structural representation of enamelled wire of the present utility model.

[embodiment]

See also Figure 1 and Figure 2, the utility model is a kind of transposed conductor, it comprises two row enamelled wire groups 1, lining paper 2 between two row enamelled wire groups 1, be arranged at a transposition line 3 of two row enamelled wire groups, 1 top center position and be coated on each enamelled wire group and the outer field outsourcing insulation 4 of transposition line, wherein, every row enamelled wire group comprises 4 enamelled wires 11, the self-adhesive layer 112 (as shown in Figure 2) that each enamelled wire 11 comprises a copper strap wire 110, is coated on the insulation enamelled coating 111 of copper strap wire 110 outer surfaces and is positioned at insulation enamelled coating 111 outer surfaces.Lining paper 2 can be Leshan DLZ-130 cable paper tape.For avoiding outsourcing insulation 4 mechanical wear in the transportation after sabot, Leshan DLZ-130 cable paper tape (not shown) of outside outsourcing insulation 4, can double-baging again.

The concrete parameter of transposed conductor of the present utility model is as follows:

The thickness of copper strap wire 110: 1.0～3.55mm

The width of copper strap wire 110: 2.0～14.0mm

The thickness of transposed conductor 3:＜90.00mm

The width of transposed conductor 3:＜30.00mm.

The transposed conductor manufacturing process is as follows:

1. cathode copper is after electromagnetic oven melts, and the mode of use non-oxygen continuous casting is made and drawn the copper bar;

2. draw bar on the non-oxygen continuous casting and roll into hard attitude rolled bar base through finishing mill;

3. rolled bar is drawn into copper strap wire behind draw down, multiple tracks mould

Copper strap wire annealed, clean, repeatedly strengthen, repeatedly japanning repeatedly (insulating varnish and self-adhesion lacquer) and baking, reach certain insulation thickness, yield strength is gone at last into enamelled wire that can continuous shifting;

5. at last many enamelled wires are made two row, wrapped through transposition equipment continuous shifting to certain insulation thickness, form transposed conductor.

Above embodiment only is the preferred embodiment of this creation, not in order to limiting this creation, all in this creation spirit and principle within made any modification, be equal to replacement, improvement etc., all should be included within the protection range of this creation.

Claims (3)

1. transposed conductor, it is characterized in that: comprise two row enamelled wire groups, lining paper between two row enamelled wire groups, be arranged at a transposition line of two row enamelled wire group top center positions and be coated on each enamelled wire group and the outer field outsourcing insulation of transposition line, wherein, described each enamelled wire insulation enamelled coating of comprising a copper strap wire and being coated on the copper strap wire outer surface.

2. transposed conductor as claimed in claim 1 is characterized in that: every row enamelled wire group comprises 4 enamelled wires.

3. transposed conductor as claimed in claim 2 is characterized in that: the insulation enamelled coating outer surface of described enamelled wire further is provided with a self-adhesive layer.

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