CN202332525U - Split type winding for transformer - Google Patents

Split type winding for transformer Download PDF

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Publication number
CN202332525U
CN202332525U CN2011205027360U CN201120502736U CN202332525U CN 202332525 U CN202332525 U CN 202332525U CN 2011205027360 U CN2011205027360 U CN 2011205027360U CN 201120502736 U CN201120502736 U CN 201120502736U CN 202332525 U CN202332525 U CN 202332525U
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China
Prior art keywords
coils
winding
transformer
split type
coil
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CN2011205027360U
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Chinese (zh)
Inventor
郑建银
蒋忠金
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NANJING DAQO TRANSFORMER SYSTEMS CO Ltd
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NANJING DAQO TRANSFORMER SYSTEMS CO Ltd
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Priority to CN2011205027360U priority Critical patent/CN202332525U/en
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Abstract

The utility model belongs to the transformer field and particularly relates to a split type winding for a transformer. The split type winding provided by the utility model combines the advantages of two traditional split type windings in structure. Two coils of a secondary winding are wound simultaneously; copper materials of the two coils are separated in an interlayer insulating manner; and the two coils are wound in an overlapped manner, so as to ensure to individually and electrically operate. The insulating radiuses of the two coils are very approximate and can be coupled well, so that the eddy-current loss of a wire stock can be effectively controlled. Wires are lead out from the same sides of the two coils, so that a lead wire structure is convenient to arrange. The split type winding disclosed by the utility model has the beneficial effects of saving the material of the coils, simplifying the lead wire structure and ensuring the properties of the transformer.

Description

A kind of winding of dual low voltage transformer
Technical field
The utility model belongs to field transformer, relates in particular to a kind of winding construction of dual low voltage transformer.
Background technology
The winding construction of traditional dual low voltage transformer mainly contains two kinds, and the axial split formula structure and the width of cloth are to division formula structure, concrete form such as Fig. 1; Its secondary winding is generally low-voltage 400V or 690V; According to the size of transformer capacity, its current value is relatively large, and coil adopts paper tinsel formula winding mostly.
When adopting axial split formula structure (Fig. 1 left hand view), owing to receive the restriction of height, the Copper Foil of winding is thicker; It is bigger influenced by its end field intensity, and the inner eddy current loss of Copper Foil also increases thereupon, causes the part waste of material; And this structure must be designed to upper and lower outlet; For guaranteeing ampere-turn equilibrium, one time winding also need be designed to upper and lower two parts, and pin configuration is also comparatively complicated.
Adopt the width of cloth when division formula structure (Fig. 1 right part of flg), the height of Copper Foil is higher, and thickness can be 1/2 of axial split formula structure; The eddy current loss of Copper Foil obviously reduces; Pin configuration is simplified than the former relatively, but in order to make the resistance value between two windings approaching as far as possible, certainly will will regulate the main empty path distance between each winding; Cause the coiling radius of coil to increase, waste of material is comparatively serious.
According to above analysis, adopt traditional axial or width of cloth all to have some drawbacks to the winding of division formula structure, the space of improvement is all being arranged aspect transformer device structure, the economy.
The utility model content
The purpose of the utility model is to overcome the problems referred to above, provides a kind of and practices thrift coil method, simplifies the winding that pin configuration guarantees the dual low voltage transformer of transformer performance simultaneously.
To achieve these goals, the technical scheme that the utility model adopted is: a kind of winding of dual low voltage transformer is characterized in that: two coil overlapping coilings of secondary winding, separate by layer insulation between two coils, and two coil electric parts are separate.
The described two coil insulation radiuses of the utility model are approaching, intercouple, and reactance is highly equal, and lead-in wire is drawn by the homonymy of two coils.
The utility model has combined the advantage of two kinds of traditional division formula winding constructions, and the coiling simultaneously of two coils of secondary winding separates with layer insulation between the copper material of two coils, and what two coils overlapped is wound on together, guarantees electric aspect independent operating; Because the insulation radius of two coils is very approaching, can be good at coupling, effectively controlled the eddy current loss of wire rod; Outlet is all drawn from above, is convenient to arrange pin configuration.
Description of drawings
Fig. 1 is the winding construction figure of existing transformer dual low voltage transformer;
Fig. 2 is the winding construction figure of the dual low voltage transformer of the utility model;
Wherein, coil on the 1a secondary, 1b secondary lower coil, 2a secondary interior loop, 2b secondary exterior loop, 3 secondary coils insulate between 4 windings.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.
Fig. 1 is the winding construction figure of existing transformer dual low voltage transformer, and mark among Fig. 1 and Fig. 2 " y " is a secondary coil, and mark " D " is a primary winding; Fig. 1 left side is axial split formula winding construction figure, is made up of coil 1a on the secondary and secondary lower coil 1b; Fig. 1 right side is the width of cloth to division formula winding construction figure, is made up of secondary interior loop 2a and secondary exterior loop 2b.
Fig. 2 is the winding construction figure of the dual low voltage transformer of the utility model, and Fig. 2 left side is the winding construction form, and Fig. 2 right side is the winding structure of secondary winding.According to Fig. 2, a kind of winding of dual low voltage transformer is characterized in that: two coils of secondary winding (being secondary coil 3) overlapping coiling, separate by layer insulation (being to insulate 4 between winding) between two coils, and two coil electric parts are separate; Two coil insulation radiuses are approaching, intercouple, and reactance is highly equal, and lead-in wire is drawn by the homonymy of two coils.
The utility model has combined the advantage of two kinds of traditional division formula winding constructions; Two secondary coils 3 adopt double-deck foil winding equipment when coiling; The coiling simultaneously of two coils of secondary winding reaches turn-to-turn and carries out insulation processing (being to insulate 4 between winding) respectively between two coils, make two coils stressed evenly.What two coils overlapped is wound on together, guarantees electric aspect independent operating.Because the insulation radius of two coils is very approaching, can be good at coupling, effectively controlled the eddy current loss of wire rod, lead-in wire is all drawn from above, is convenient to arrange pin configuration, and lead-in wire is carried out the sequence number mark.
The foregoing description does not limit the utility model in any form, and all employings are equal to the technical scheme that mode obtained of replacement or equivalent transformation, all drops on the protection range of the utility model.

Claims (2)

1. the winding of a dual low voltage transformer is characterized in that: two coil overlapping coilings of secondary winding, separate by layer insulation between two coils, and two coil electric parts are separate.
2. the winding of a kind of dual low voltage transformer according to claim 1, it is characterized in that: described two coil insulation radiuses are approaching, intercouple, and reactance is highly equal, and lead-in wire is drawn by the homonymy of two coils.
CN2011205027360U 2011-12-07 2011-12-07 Split type winding for transformer Active CN202332525U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205027360U CN202332525U (en) 2011-12-07 2011-12-07 Split type winding for transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205027360U CN202332525U (en) 2011-12-07 2011-12-07 Split type winding for transformer

Publications (1)

Publication Number Publication Date
CN202332525U true CN202332525U (en) 2012-07-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011205027360U Active CN202332525U (en) 2011-12-07 2011-12-07 Split type winding for transformer

Country Status (1)

Country Link
CN (1) CN202332525U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102881424A (en) * 2012-11-02 2013-01-16 中电电气(江苏)股份有限公司 Two-way double-helix split winding structure
CN104868419A (en) * 2015-05-05 2015-08-26 上海交通大学 Bus end connecting metal ware and using method thereof
CN105551771A (en) * 2014-10-28 2016-05-04 Abb技术有限公司 Transformers
CN110828143A (en) * 2019-11-22 2020-02-21 德阳新源电器有限责任公司 Low-voltage coil of capacity and voltage regulating transformer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102881424A (en) * 2012-11-02 2013-01-16 中电电气(江苏)股份有限公司 Two-way double-helix split winding structure
CN105551771A (en) * 2014-10-28 2016-05-04 Abb技术有限公司 Transformers
CN105551771B (en) * 2014-10-28 2018-10-16 Abb瑞士股份有限公司 Transformer
CN104868419A (en) * 2015-05-05 2015-08-26 上海交通大学 Bus end connecting metal ware and using method thereof
CN110828143A (en) * 2019-11-22 2020-02-21 德阳新源电器有限责任公司 Low-voltage coil of capacity and voltage regulating transformer

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