CN203192576U - Modified dry type transformer low-voltage copper bar - Google Patents

Modified dry type transformer low-voltage copper bar Download PDF

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Publication number
CN203192576U
CN203192576U CN 201320151634 CN201320151634U CN203192576U CN 203192576 U CN203192576 U CN 203192576U CN 201320151634 CN201320151634 CN 201320151634 CN 201320151634 U CN201320151634 U CN 201320151634U CN 203192576 U CN203192576 U CN 203192576U
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CN
China
Prior art keywords
copper bar
copper
copper bars
type transformer
bars
Prior art date
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Active
Application number
CN 201320151634
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Chinese (zh)
Inventor
徐健
张孝金
耿德飞
牛敬坤
蔡伟
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.)
Jiangsu Huachen transformer Limited by Share Ltd
Original Assignee
JIANGSU HUACHEN TRANSFORMER 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.)
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Application filed by JIANGSU HUACHEN TRANSFORMER Co Ltd filed Critical JIANGSU HUACHEN TRANSFORMER Co Ltd
Priority to CN 201320151634 priority Critical patent/CN203192576U/en
Application granted granted Critical
Publication of CN203192576U publication Critical patent/CN203192576U/en
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Abstract

The utility model discloses a modified dry type transformer low-voltage copper bar which comprises copper bars. The copper bars are connected with one another through copper bar supporting parts, the lower ends of the copper bars are connected with a winding coil, the copper bars are connected with an excitation iron core through the copper bar supporting parts and tightening groove steel, the copper bars are arranged on two sides of the excitation iron core, and the copper bars arranged on two sides of the excitation iron core are connected with bridging copper bars through the copper bar supporting parts. Specifications of a single copper bar can be reduced while the sections of the copper bars are guaranteed, and processing operations on the copper bars such as bending and punching are convenient. In addition, heating quantity of the copper bars is small, long-term stable operation of the copper bars is facilitated; and winding eddy-current loss can be further reduced.

Description

Modified form dry-type transformer low-voltage copper bar
Technical field
The utility model relates to a kind of transformer copper bar, particularly relates to a kind of modified form dry-type transformer low-voltage copper bar.
Background technology
Dry-type transformer refers to that iron core and winding are not immersed in the transformer in the dielectric, are widely used in places such as power station, factory, hospital.Follow the propelling of urbanization process, dry-type transformer develops into the main flow of distribution transformer gradually.The dry-type transformer low-voltage copper bar is connected the in-out end of low-voltage coil.
As shown in Figure 1, traditional dry-type transformer low-voltage copper bar is the copper bar structure of single face outlet, namely only in static exciter iron core 1 one sides copper bar 3 is set, two copper bars 3 be arranged in parallel, and interconnect by copper bar strutting piece 5, the lower end of two copper bars 3 and winding coil 4 join, copper bar 3 by copper bar strutting piece 5, step up channel-section steel 2 and join with field core 1.Operation principle is: static exciter iron core 1 is through producing induced current after the excitation in transformer low voltage winding coil 4, induced current confluxes in structure copper bar 3, and transformer is externally exported electric energy by structure copper bar 3.
For the low-pressure dry transformer of traditional larger capacity, its low-tension current is also bigger, but the general also the same copper bar structure that adopts the single face outlet with small capacity transformer: winding coil adopts the coiling of individual layer Copper Foil, winding eddy current loss height; Single copper bar outlet, the copper bar cross section is big, processing difficulties, the caloric value height easily causes short trouble, and the fault that in a single day is short-circuited, the short-circuit force that produces in the copper bar can step up channel-section steel to transformer again and produce damaging influence, is unfavorable for transformer operation steady in a long-term.
Summary of the invention
The purpose of this utility model provides a kind of modified form dry-type transformer low-voltage copper bar, when guaranteeing the copper bar cross section, can also reduce the specification of single copper bar, comparatively convenient when copper bar being carried out process operations such as bending, punching, in addition, the caloric value of copper bar is little, is conducive to the long-term stability operation of transformer.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of modified form dry-type transformer low-voltage copper bar, comprise copper bar, interconnect by the copper bar strutting piece between the described copper bar, lower end and the winding coil of described copper bar join, described copper bar by the copper bar strutting piece, step up channel-section steel and field core joins, described field core both sides are equipped with copper bar, and the copper bar of both sides is connected with the bridge joint copper bar by the copper bar strutting piece.
Further improve, described winding coil adopts the winding of double-deck Copper Foil coiling.
Compare with prior art, because the utility model is used two-sided copper bar instead and carried out outlet, namely be equipped with copper bar in the field core both sides, middle with bridge joint copper bar realization connection.Said structure is when guaranteeing the copper bar cross section, can also reduce the specification of single copper bar, comparatively convenient when copper bar being carried out process operations such as bending, punching, in addition, the caloric value of copper bar is little, in case the fault of being short-circuited, the short-circuit force that produces in the copper bar only is 1/4 of original structure, reduce short-circuit force greatly to stepping up the influence of channel-section steel and copper bar strutting piece, be conducive to the long-term stability operation of transformer.
Description of drawings
Fig. 1 is the prior art constructions schematic diagram;
Fig. 2 is structural representation of the present utility model.
Among the figure: 1, field core, 2, step up channel-section steel, 3, copper bar, 4, winding coil, 5, the copper bar strutting piece, 6, the bridge joint copper bar.
Embodiment
Below in conjunction with drawings and Examples the utility model is described
As shown in Figure 2, modified form dry-type transformer low-voltage copper bar of the present utility model, comprise copper bar 3, interconnect by copper bar strutting piece 5 between the described copper bar 3, the lower end of described copper bar 3 and winding coil 4 join, described copper bar 3 by copper bar strutting piece 5, step up channel-section steel 2 and join with field core 1, described field core 1 both sides are equipped with copper bar 3, the copper bar 3 of both sides is connected with bridge joint copper bar 6 by copper bar strutting piece 5.
As further improvement of the utility model, when winding coil 4 adopted the winding of double-deck Copper Foil coiling, the eddy current loss that this two layer winding copper foil structure produces reduced by more than 50 than original structure.
Static exciter iron core 1 produces separate induced current in the double-deck Copper Foil at the transformer low voltage winding after the excitation, the induced current that the winding Copper Foil produces confluxes respectively in absolute construction copper bar 3, and transformer compiles external output electric energy by bridge joint copper bar 6 with both.
The utility model is used two-sided copper bar instead and carried out outlet, namely is equipped with copper bar 3 in field core 1 both sides, and is middle with the 6 realization connections of bridge joint copper bar.Said structure is when guaranteeing copper bar 3 cross sections, can also reduce the specification of single copper bar 3, comparatively convenient when copper bar 3 being carried out process operations such as bending, punching, in addition, the caloric value of copper bar 3 is little, in case the fault of being short-circuited, the short-circuit force that produces in the copper bar 3 only is 1/4 of original structure, reduce short-circuit force greatly to stepping up the influence of channel-section steel 2 and copper bar strutting piece 5, be conducive to the long-term stability operation of transformer.

Claims (2)

1. modified form dry-type transformer low-voltage copper bar, comprise copper bar (3), interconnect by copper bar strutting piece (5) between the described copper bar (3), the lower end of described copper bar (3) and winding coil (4) join, described copper bar (3) by copper bar strutting piece (5), step up channel-section steel (2) and field core (1) and join, it is characterized in that: described field core (1) both sides are equipped with copper bar (3), and the copper bar of both sides (3) is connected with bridge joint copper bar (6) by copper bar strutting piece (5).
2. a kind of modified form dry-type transformer low-voltage copper bar according to claim 1 is characterized in that: the winding of the double-deck Copper Foil coiling of described winding coil (4) employing.
CN 201320151634 2013-03-29 2013-03-29 Modified dry type transformer low-voltage copper bar Active CN203192576U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320151634 CN203192576U (en) 2013-03-29 2013-03-29 Modified dry type transformer low-voltage copper bar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320151634 CN203192576U (en) 2013-03-29 2013-03-29 Modified dry type transformer low-voltage copper bar

Publications (1)

Publication Number Publication Date
CN203192576U true CN203192576U (en) 2013-09-11

Family

ID=49109415

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320151634 Active CN203192576U (en) 2013-03-29 2013-03-29 Modified dry type transformer low-voltage copper bar

Country Status (1)

Country Link
CN (1) CN203192576U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104485202A (en) * 2014-12-26 2015-04-01 吴江变压器有限公司 Adjustable copper bar installation structure for dry-type transformer shell

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104485202A (en) * 2014-12-26 2015-04-01 吴江变压器有限公司 Adjustable copper bar installation structure for dry-type transformer shell

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GR01 Patent grant
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 221000 Jiangsu province Xuzhou city Copper Mt. District Xuzhou high tech Industrial Development Zone Second Industrial Park Qianjiang Road North

Patentee after: Jiangsu Huachen transformer Limited by Share Ltd

Address before: 221000 Jiangsu province Xuzhou city Copper Mt. District Xuzhou high tech Industrial Development Zone Second Industrial Park Qianjiang Road North

Patentee before: JIANGSU HUACHEN TRANSFORMER CO., LTD.