CN203481012U - Novel coil tapping joint of 10kV oil-immersed-type power transformer - Google Patents
Novel coil tapping joint of 10kV oil-immersed-type power transformer Download PDFInfo
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- CN203481012U CN203481012U CN201320548699.6U CN201320548699U CN203481012U CN 203481012 U CN203481012 U CN 203481012U CN 201320548699 U CN201320548699 U CN 201320548699U CN 203481012 U CN203481012 U CN 203481012U
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- coil
- oil
- tap
- joint
- insulating sleeve
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Abstract
The utility model discloses a novel coil tapping joint of a 10kV oil-immersed-type power transformer. The coil tapping joint is positioned on the outermost layer of a coil of the transformer and is in radial direction with the coil, copper wires of the coil tapping joint penetrate into an insulating sleeve from a wedge-shaped opening of the insulating sleeve, an insulating material is coated outside the wedge-shaped opening, the insulating sleeve is fixed on the coil and is slightly higher than radial height of the coil, the coil tapping joint is positioned in a gap between two supporting strips of a coil oilway, and a layer of shrinkage tape is wound on the outermost layer of the coil according to a one-half overlaying method. The copper wires of the coil tapping joint are arranged side by side.
Description
Technical field
The utility model relates to power technology field, and particularly a kind of new coil tap of 10kV oil-immersed power transformer is lifted one's head.
Background technology
In transformer technology field, 10kV oil-immersed power transformer is different according to loop construction, and the lead-out mode of tap lead has two kinds.
A kind of mode is at the radial tap of drawing of coil outermost layer, be applicable to circular coil, lifting one's head when welding with tap lead of this kind of mode, must beat certain bending angle by winding protruding head: the 90-degree bent that makes progress again after first horizontal buckling draws enough length and tap lead welding just can complete, coil tap lift one's head with switch between connect, can occupy certain fuel tank space, be unfavorable for the minimizing of fuel tank width.
Another kind of mode, at coil middle part axial lead tap, is applicable to square coil, oval coil.Lifting one's head of this mode can cause the safe distance between tap lead and folder inadequate, thereby the increasing of having to is put insulating board, increase transformer manufacturing cost.
Therefore, a kind of coil tap being more suitable for is lifted one's head mode, to 10kV oil-immersed power transformer, is very necessary.
Summary of the invention
The purpose of this utility model is to provide a kind of new coil tap of 10kV oil-immersed power transformer and lifts one's head.
The technical solution of the utility model is, a kind of new coil tap of 10kV oil-immersed power transformer is lifted one's head, and described coil tap joint is positioned at the coil outermost layer of described transformer, is radial direction with this coil,
The wedge-like opening of the copper cash of described coil tap joint from an insulating sleeve penetrates this insulating sleeve, and this wedge-like opening is covered with insulating material outward,
Described insulating sleeve is fixed on described coil, a little more than the radial height of described coil,
Described coil tap joint is between the space between 2 stays of described coil oil duct.
The copper cash of described coil tap joint is and is arranged side by side.
Described coil outermost layer is wound with tightening belt, and according to 1/2 folded method coiling one deck.
Coil tap of the present utility model is lifted one's head, both can make tap lift one's head and strengthen from the distance of sequence number 2 transformer upper clamping pieces, meet the safe distance of regulation, more extra cushioning insulating board, also can suitably reduce the width of fuel tank, thereby reduce the manufacturing cost of transformer.
Accompanying drawing explanation
Fig. 1 is the partial side view of coil tap tap structure of the present utility model.
Fig. 2 is the partial top view of coil tap tap structure of the present utility model.
1---transformer core,
2---transformer upper clamping piece,
3---transformer high-voltage coil tap lead-out wire,
4---transformer coil,
5---transformer box wall.
Fig. 3 is the wedge-like opening schematic diagram on insulating sleeve in the utility model embodiment.
Embodiment
As illustrated in fig. 1 and 2, the new coil tap of a kind of 10kV oil-immersed power transformer of the present utility model is lifted one's head, and described coil tap joint is positioned at the coil outermost layer of described transformer, is radial direction with this coil,
The wedge-like opening of the copper cash of described coil tap joint from an insulating sleeve penetrates this insulating sleeve, and this wedge-like opening is covered with insulating material outward,
Described insulating sleeve is fixed on described coil, a little more than the radial height of described coil,
Described coil tap joint is between the space between 2 stays of described coil oil duct.
The copper cash of described coil tap joint is and is arranged side by side.
Described coil outermost layer is wound with tightening belt, and according to 1/2 folded method coiling one deck.
During actual fabrication tap joint, according to transformer coil, require coiling high-tension coil, coiling starts to draw high-voltage tap to outermost layer place and lifts one's head, by paper tube one end radial height of coil (emerge height by specification requirement) of emerging, in coil tap, lift one's head the position of drawing paper tube is cut to an openning (specifically the method for cutting is shown in accompanying drawing 3).Copper cash is penetrated to paper tube, at paper tube clip, with the insulating paper of 6 0.05, encase, paper tube is fixed on coil with cellotape, with wooden mallet, paper tube is beaten out, and prevents the local too high radial size that affects coil.If have two copper cash to draw in paper tube, can not stack phenomenon.The position of each tap lead-out wire will be embedded in the space between latter two stay of corresponding oil duct, prevents that the radial size of coil is too high.All lift one's head draw after, outermost layer is again around upper tightening belt, 1/2 folded method coiling one deck, further strengthens fastening coil and tap lead-out wire.
Claims (2)
1. the new coil tap of a 10kV oil-immersed power transformer is lifted one's head, and it is characterized in that, described coil tap joint is positioned at the coil outermost layer of described transformer, is radial direction with this coil,
The wedge-like opening of the copper cash of described coil tap joint from an insulating sleeve penetrates this insulating sleeve, and this wedge-like opening is covered with insulating material outward,
Described insulating sleeve is fixed on described coil, a little more than the radial height of described coil,
Described coil tap joint between the space between 2 stays of described coil oil duct,
Described coil outermost layer is wound with tightening belt, and according to 1/2 folded method coiling one deck.
2. the new coil tap of 10kV oil-immersed power transformer as claimed in claim 1 is lifted one's head, and it is characterized in that, the copper cash of described coil tap joint is and is arranged side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320548699.6U CN203481012U (en) | 2013-09-04 | 2013-09-04 | Novel coil tapping joint of 10kV oil-immersed-type power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320548699.6U CN203481012U (en) | 2013-09-04 | 2013-09-04 | Novel coil tapping joint of 10kV oil-immersed-type power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203481012U true CN203481012U (en) | 2014-03-12 |
Family
ID=50229295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320548699.6U Expired - Lifetime CN203481012U (en) | 2013-09-04 | 2013-09-04 | Novel coil tapping joint of 10kV oil-immersed-type power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203481012U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104299763A (en) * | 2014-11-04 | 2015-01-21 | 广东百胜电气有限公司 | Amorphous alloy power transformer |
-
2013
- 2013-09-04 CN CN201320548699.6U patent/CN203481012U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104299763A (en) * | 2014-11-04 | 2015-01-21 | 广东百胜电气有限公司 | Amorphous alloy power transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200724 Address after: No.5 Xinjing East Road, South District, Zhangjiagang Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee after: Shanghai Electric Group (Zhangjiagang) Transformer Co.,Ltd. Address before: 201400, Shanghai, Fengxian District Pu Pu Industrial Zone, Pu Pu Avenue, No. 6 Patentee before: SHANGHAI NANQIAO TRANSFORMER Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140312 |
|
| CX01 | Expiry of patent term |