CN201134284Y

CN201134284Y - Multiple strands parallelly arranged and combined transposed conducting line

Info

Publication number: CN201134284Y
Application number: CNU2007200740571U
Authority: CN
Inventors: 倪林根; 刘延文
Original assignee: Shanghai Yanghang Copper Coltd
Current assignee: Shanghai Yanghang Copper Coltd
Priority date: 2007-08-24
Filing date: 2007-08-24
Publication date: 2008-10-15
Anticipated expiration: 2017-08-24

Abstract

The utility model belongs to the technical field of electric equipment, in particular to multi-strand parallel combined transposed conductors. The steps to form the combined transposed conductors comprises axially and parallel combining each two strands of single-strand transposed conductors which are prefabricated to wind insulating layers, then combining two axial and parallel conducting wires to form four strands parallel combined transposed conductor bundles, and coating common insulating layers outside the transposed conductors. The mechanical strengths of the transposed conductors, consisting of tensile strength, yield strength and bending strength, are largely increased and winding flexibility of the conductors still remains.

Description

Multiply combined shifting lead arranged side by side

Technical field

The utility model belongs to technical field of electrical equipment, is specifically related to a kind of multiply combined shifting lead arranged side by side.

Technical background

Transposed conductor is meant that the enameling copper strap wire that certain radical (the odd number root is as 31,45) has from coating is overlapped into two row that wide face is in contact with one another, on request on two row enamelled wires and below do the same transposition that turns to along leptoprosopy, and make the lead that multilayer closely holds composition continuously with electrician's insulating tape, this transposed conductor can be used for making high voltage, high-power transformer or other electrical equipment coilings.At present, this transposed conductor from first to last all is identical, single (seeing diagram 1), can not satisfy the needs of the Transformer Winding making with property requirement.

Summary of the invention

The transposed conductor that provides a kind of preparation Transformer Winding that can satisfy big electric current, high mechanical properties requirement to use is provided the purpose of this utility model.

The transposed conductor that the utility model proposes is a kind of multiply combined shifting lead arranged side by side, and it is axially constituted side by side by 2-4 thigh sub-thread transposed conductor, wrapped the 3rd insulating barrier that is covered with of its outer felt.Its structure as shown in Figure 2.Wherein, the sub-thread transposed conductor is had self-adhesive layer by 2n+1 (odd number) root enameling copper strap wire is overlapped into 2 row wide contact, between 2 row lining paper layer is arranged, and on 2 row enameling copper strap wires and below along leptoprosopy do same turn to the transposition and constitute, whenever classify the n root as, its outer felt around outside be surrounded by first insulating barrier.Its structure as shown in Figure 1.

In the utility model, the thickness of forming the copper strap wire of sub-thread transposed conductor is 1.1-2.0mm, and width is 4.5-9.0mm; The radical of copper strap wire is the 2n+1 root, and each row copper strap wire radical is n, the integer of n=15-22; First thickness of insulating layer of its outsourcing is 0.4-2.0mm, and the lining paper layer thickness is 0.075-0.13mm between two row.

In the utility model, per two strands of transposed conductors become one group side by side, are surrounded by second insulating barrier outside every group of transposed conductor twines, and two groups of transposed conductors twine outsourcing the 3rd insulating barrier outward again, see shown in Figure 2.

This practical proposition is formed composite conductor by multiply transposed conductor boundling arranged side by side, its mechanical strength comprises that tensile strength, yield strength, the bending strength of lead greatly improve, and don't lose its wrapped compliance, can be used for preparing the Transformer Winding of big electric current, high mechanical properties requirement.

Description of drawings

Fig. 1 is a sub-thread transposed conductor cross section diagram.

Fig. 2 is a multiply of the present utility model combined shifting lead arranged side by side cross section diagram.

Number in the figure: 1 is copper strap wire, and 2 for being coated with rete, and 3 is first insulating barrier, and 4 is second insulating barrier, and 5 is the 3rd insulating barrier, and 6 is the lining paper layer.

Embodiment

The multiply combined shifting lead arranged side by side of this practical proposition is axially combined side by side by the transposed conductor that 2～4 strands of presetting systems perform.In anabolic process,, two single cords are carried out being combined as one group the first time side by side wrapped second insulating barrier earlier for avoiding the 4 bursts of laxities brought when making up simultaneously and uneven, wrapped technological problems such as not tight.And then two groups of composite conductors are made up side by side again, hold the 3rd insulating barrier (public insulating barrier) then.Used insulating paper generally adopts the heat-resisting of high-quality, the high density electric insulation paper of press polish, to increase its mechanical strength, proof voltage intensity and heat-resisting ageing resistace, extension lead useful life, its single enameling copper strap wire adopts high rigidity (anti-yield strength), high-tensile copper strap wire is a parent, after being coated with the acetal insulating varnish of high withstand voltage intensity outward, again at surface recombination coating tack epoxy heat bonding enamelled coating, coating is bonded together after can disposablely partly melting and cool off after the heating mutually, each single enamelled wire closely is bonded into one, mechanical strength is improved greatly, thereby improve the rigidity of whole winding, resist grid short circuit, electric power under the thunderbolt situation makes winding and equipment, power grid security is protected.

Multiply of the present utility model combined shifting lead arranged side by side has satisfied the specific (special) requirements of big capacity, strong current transformer winding preferably.

Claims

1, a kind of multiply combined shifting lead arranged side by side is characterized in that it is axially constituted side by side by 2-4 thigh sub-thread transposed conductor, wrapped the 3rd insulating barrier that is covered with of its outer felt.

2, multiply according to claim 1 combined shifting lead arranged side by side, it is characterized in that the sub-thread transposed conductor is had a self-adhesive layer by the 2n+1 root enameling copper strap wire is overlapped into 2 row wide contact, between 2 row lining paper is arranged, and 2 row enamel-cover copper all over above the line and below along leptoprosopy do same turn to the transposition and constitute, whenever classify the n root as, the integer of n=15-22, its outer felt around outside be surrounded by first insulating barrier.

3, multiply according to claim 1 combined shifting lead arranged side by side, the thickness that it is characterized in that forming the copper strap wire of sub-thread transposed conductor is 1.1-2.0mm, width is 4.5-9.0mm; First thickness of insulating layer of its outsourcing is 0.4-2.0mm, and the lining paper layer thickness is 0.075-0.13mm between two row.

4, multiply according to claim 1 combined shifting lead arranged side by side is characterized in that per two strands of transposed conductors become one group side by side, is surrounded by second insulating barrier outside every group of transposed conductor twines, and two groups of transposed conductors twine outsourcing the 3rd insulating barrier outward again.