CN205723116U - A kind of power transformer odd number section continuous winding - Google Patents

Abstract

This utility model relates to a kind of power transformer odd number section continuous winding, and coil hop count is odd number, upper and lower lifts one's head in coil, outer both sides are drawn；Cancelling or reduce outlet square ring, more conventional structure reduces by the outlet square ring of 1～2 layer.What this utility model efficiently solved lift one's head, and insulation distance is nervous, the problem that insulation system is complicated, makes the safety of transformator get a promotion.

Description

A kind of power transformer odd number section continuous winding

Technical field

This utility model relates to a kind of power transformer manufacturing technology, specifically a kind of power transformer odd number Duan Lian Continuous formula coil.

Background technology

So far, power transformer continuous winding all uses even number section coiling, as it is shown in figure 1, coil is lifted one's head up and down Draw from coil outer diameter side, the process conveniently lifted one's head and insulating wrapping, as shown in Figure 2.But for extra-high voltage product especially certainly Coupling transformator, inside and outside two coil voltage differences cannot stagger again relatively greatly too many, if still use said structure coiling on gear Then there will be because two winding protruding heads are too near, lift one's head the situation of complex for insulation.

Utility model content

Then there will be when coiling because two winding protruding heads are too near, it is exhausted to lift one's head for the coil of extra-high voltage product in prior art The deficiencies such as edge is complicated, the technical problems to be solved in the utility model be to provide one can solve winding protruding head insulation distance nervous, The power transformer odd number section continuous winding that insulation system is complicated.

For solving above-mentioned technical problem, the technical solution adopted in the utility model is:

This utility model one power transformer odd number section continuous winding, coil hop count is odd number, upper and lower lift one's head online Enclose inside and outside both sides to draw.

On lift one's head in coil side by end turn pressing plate top draw.

The briquetting on end turn pressing plate top and being evenly arranged of nail pressing.

Cancelling or reduce outlet square ring, more conventional structure reduces by the outlet square ring of 1～2 layer.

This utility model has the advantages that and advantage:

1. this utility model is to strengthen the insulation distance of two winding protruding heads to simplify and lift one's head insulation system, interior loop is used strange Several sections of coilings so that it is lift one's head and change into internal coil diameter side and draw in one end, efficiently solve to lift one's head insulation distance nervous, insulation system Complicated problem, makes the safety of transformator get a promotion.

Accompanying drawing explanation

Fig. 1 is even number section coil winding construction schematic diagram in conventional art；

Fig. 2 is two mounting coil structural representation in conventional art；

Fig. 3 is odd number section coil winding construction schematic diagram in this utility model；

Fig. 4 is two mounting coil structural representation in this utility model.

Detailed description of the invention

Below in conjunction with Figure of description, this utility model is further elaborated.

As it is shown on figure 3, this utility model one power transformer odd number section continuous winding, coil hop count is odd number, upper, Under lift one's head 1,2 the inside and outside both sides of coil 3 draw.

On lift one's head 1 inside coil 3 by end turn pressing plate top draw, above lift one's head 1 bag insulation after take up room less, So the outlet reserved on end turn pressing plate is the least, can preferably dodge other that be arranged in end turn pressing plate top Parts, particularly with the layout of body pressing device than more uniform to increase anti-short circuit capability；Increase end turn pressing plate simultaneously The briquetting on top and nail pressing quantity, and make briquetting and nail pressing quantity arrange evenly, make thrust more reasonable.

Using odd number section coil is non-conventional design, but can meet insulation distance, and pressure reduction of lifting one's head is big, meets wanting of electrical network Ask.Outlet square ring (pulp insulation profiled member) is installed in conventional design for uniform electric field, reduce two lift one's head between insulation away from From, and in this utility model, owing to using odd number section core circle to meet insulation distance, can cancel or reduce outlet square ring Quantity.

This utility model is to lift one's head for inner-outer coil top in Fig. 2 to cause insulation distance between A, a because voltage difference is excessive The most simple and effective improvement that anxiety is carried out, the structure after improvement as shown in Figure 4, lifts one's head the nervous situation of insulation at inner-outer coil Under improve insulation distance simply and effectively.

Claims (3)

1. a power transformer odd number section continuous winding, it is characterised in that: coil hop count is odd number, upper and lower lift one's head online Enclose inside and outside both sides to draw.

2. the power transformer odd number section continuous winding as described in claim 1, it is characterised in that: above lift one's head side in coil Drawn by end turn pressing plate top.

3. the power transformer odd number section continuous winding as described in claim 2, it is characterised in that: end turn pressing plate top Briquetting and being evenly arranged of nail pressing.