CN201590274U - High-reliability screen pack transposition conducting wire - Google Patents

High-reliability screen pack transposition conducting wire Download PDF

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Publication number
CN201590274U
CN201590274U CN2009202173194U CN200920217319U CN201590274U CN 201590274 U CN201590274 U CN 201590274U CN 2009202173194 U CN2009202173194 U CN 2009202173194U CN 200920217319 U CN200920217319 U CN 200920217319U CN 201590274 U CN201590274 U CN 201590274U
Authority
CN
China
Prior art keywords
coil
insulation layer
transposition
conducting wire
screen pack
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2009202173194U
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Chinese (zh)
Inventor
李雄壮
曹士亮
赵葛
韩新生
赵秀生
景崇友
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baoding Tianwei Group Co Ltd
Original Assignee
Baoding Tianwei Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Baoding Tianwei Group Co Ltd filed Critical Baoding Tianwei Group Co Ltd
Priority to CN2009202173194U priority Critical patent/CN201590274U/en
Application granted granted Critical
Publication of CN201590274U publication Critical patent/CN201590274U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A high-reliability screen pack transposition conducting wire is used for improving the reliability of a screen pack transposition conducting wire and the coil winding efficiency. The technical proposal includes that: the screen pack transposition conducting wire is composed of a transposition wire core and a screen band wound on the exterior of the wire core; as an improvement, a composite insulation layer is arranged between the transposition wire core and the screen band corresponding to the turns of coil to be wound and/or interlayer contact parts. In the most vulnerable part of the screen band, a composite insulation layer is arranged between the transposition wire core and the screen band of a traditional screen pack transposition conducting wire, the heat radiating performance of the coil is ensured, the mechanical strength and insulating strength of the vulnerable part of the insulation layer are also increased, and the reliability of the insulation layer is accordingly improved. The overall size of the coil can be adjusted through the composite insulation layer so that the coil can better meet the coil technique requirement, and the work efficiency is improved.

Description

A kind of high reliability net lead of guaranteeing replacement
Technical field
The utility model relates to a kind of transposed conductor that uses in the oil-filled transformer winding, belong to the transformer technology field.
Background technology
A net lead of guaranteeing replacement is to replace the transposed conductor of insulating paper as outside lapping layer with guipure, and its structure as described in Figure 1.When using net to guarantee replacement the winding of a wire producing oil-filled transformer, the conductor of winding coil can directly contact with transformer oil, eliminated the oil clearance between insulating paper and lead, not only help improving the heat dispersion of transformer, and can reduce the volume of transformer, reduce the manufacturing cost of transformer.But existing net is guaranteed replacement a lead after pressurized or baking and curing processing, guipure thickness meeting attenuation, overall dimension obviously diminishes, in order to satisfy coil overall dimensions and volume requirement, need to increase auxiliary material such as filler strip, this brings inconvenience for coil winding and correction.In addition, when lead several paralleled conductor or liter layer coiling, net is guaranteed replacement bit line under the situation of unshielded measure, and the position of turn-to-turn or interlayer contact is easy to sustain damage, and causes guipure to break, and influences the quality of winding.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, the high reliability net of an a kind of not cracky and dimensionally stable lead of guaranteeing replacement is provided.
Problem described in the utility model realizes with following technical proposals:
A kind of high reliability net lead of guaranteeing replacement, by the transposition core with wrappedly constitute in its outside guipure, after the improvement, and treat to be provided with composite insulation layer between the transposition core of coiling turn-to-turn and/or corresponding position, interlayer contact site and the guipure.
An above-mentioned high reliability net lead of guaranteeing replacement, described composite insulation layer is an insulating paper.
Transformer coil turn-to-turn or interlayer contact site are the guarantee replacement the easiest positions that sustains damage of guipure of a lead of net, and it also is the main cause that coil dimension diminishes that the guipure at this position shrinks.The utility model is in the easiest part that sustains damage of guipure, guarantee replacement at traditional net and to be provided with composite insulation layer between the transposition core of a lead and the guipure, when guaranteeing the coil heat dispersion, can increase the mechanical strength and the dielectric strength of insulating barrier damageable zone, improve its reliability.Composite insulation layer can also be adjusted the overall dimensions of coil, makes it to satisfy the coil process requirement better, increases work efficiency.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of traditional transposed conductor;
Fig. 2~Fig. 4 is the structural representation of three embodiment of the utility model.
Each label is among the figure: 1, guipure; 2, transposition core; 3, composite insulation layer.
Embodiment
Because the structure of different coils is different with the winding mode, the position of composite insulation layer 3 is also different with size, and when specifically implementing, fibrous root is according to the coiling mode and the structure of coil, and decision is placed on thickness, area and the position of the insulating paper between transposition core 2 and the guipure 1.
Referring to Fig. 2, Fig. 3 and Fig. 4, the position of insulating paper of the present utility model generally has three kinds, insulating paper among Fig. 2 is positioned over the guarantee replacement top of a conductive wire cross-section of net, is used to prevent that the radial turn-to-turn net of coil envelope curve from damaging mutually, this structure be fit to two of coilings or many radial and around coil.Insulating paper among Fig. 3 is positioned over a guarantee replacement side of a conductive wire cross-section of net, is used to prevent that lattice coil interlayer net envelope curve from damaging mutually, this structure be fit to two of coilings or many axially and around coil.Among Fig. 4, the guarantee replacement top and the side of a conductive wire cross-section of net is equipped with insulating paper, is used to prevent that coil axes from damaging mutually to turn-to-turn and interlayer net envelope curve, this structure be fit to coiling axially and radial and around coil.
Composite insulation layer 3 adopts insulating paper, and the selection of insulating paper also is a key link of the present utility model.Transposition line in use can take place to stretch or contraction distortion.Because guipure 1 is closely to be coated on equably on the transposition core 2, be in the insulating board that replaces between core 2 and the guipure 1 and also can follow stretching or the corresponding stretching of crooked generation or the contraction distortion of transposition line, if insulating board stretching rate variance or quality are harder, bulge will be broken or swell to insulating board, has a strong impact on the quality of lead.So composite insulation layer should select extensibility big, quality softness, thickness suitable insulation paper.If the compound inslation layer thickness is thicker, can adopt the thin and insulating paper that extensibility is higher of multilayer.
If realize the placement work of compound inslation smoothly, need special-purpose auxiliary mould and equipment to finish.Cut the paper tape of certain width at first on request, calculate the number of plies of selected insulating paper then according to the thickness requirement of compound inslation, the paper disc of putting of corresponding ply of paper number is set.If multilayer then is stacked together these paper tapes, by state correction, all paper tapes neatly, entirely with transposition core parallel traction to wrapped machine, at last with guipure transposition core 2 and composite insulation layer 3 wrapped being in the same place.

Claims (2)

1. high reliability net lead of guaranteeing replacement, by transposition core (2) and wrapped in its outside guipure (1) formation, it is characterized in that, and treat to be provided with composite insulation layer (3) between the transposition core (2) of coiling turn-to-turn and/or corresponding position, interlayer contact site and the guipure (1).
2. according to the described high reliability net of claim 1 lead of guaranteeing replacement, it is characterized in that described composite insulation layer (3) is an insulating paper.
CN2009202173194U 2009-09-28 2009-09-28 High-reliability screen pack transposition conducting wire Expired - Fee Related CN201590274U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202173194U CN201590274U (en) 2009-09-28 2009-09-28 High-reliability screen pack transposition conducting wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202173194U CN201590274U (en) 2009-09-28 2009-09-28 High-reliability screen pack transposition conducting wire

Publications (1)

Publication Number Publication Date
CN201590274U true CN201590274U (en) 2010-09-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009202173194U Expired - Fee Related CN201590274U (en) 2009-09-28 2009-09-28 High-reliability screen pack transposition conducting wire

Country Status (1)

Country Link
CN (1) CN201590274U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102496406A (en) * 2011-12-06 2012-06-13 保定天威集团有限公司 Mesh package transposed conducting wire with local insulating protection layers
CN103531276A (en) * 2013-10-19 2014-01-22 无锡锡洲电磁线有限公司 Locally-reinforced insulation transposed conductor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102496406A (en) * 2011-12-06 2012-06-13 保定天威集团有限公司 Mesh package transposed conducting wire with local insulating protection layers
CN103531276A (en) * 2013-10-19 2014-01-22 无锡锡洲电磁线有限公司 Locally-reinforced insulation transposed conductor

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100922

Termination date: 20130928