CN106449062B - Capacitance ring for high voltage transformer - Google Patents
Capacitance ring for high voltage transformer Download PDFInfo
- Publication number
- CN106449062B CN106449062B CN201611025303.4A CN201611025303A CN106449062B CN 106449062 B CN106449062 B CN 106449062B CN 201611025303 A CN201611025303 A CN 201611025303A CN 106449062 B CN106449062 B CN 106449062B
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- China
- Prior art keywords
- face
- high voltage
- voltage transformer
- outer end
- cushion block
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Organic Insulating Materials (AREA)
Abstract
The invention discloses a kind of capacitance rings for high voltage transformer, and the capacitance ring includes surrounding layer, and there is the high voltage transformer end to enclose, and the surrounding layer includes the outer end face of adjacent end circle；The capacitance ring further includes being fixed on the oil clearance cushion block with insulation performance on surrounding layer, and the oil clearance cushion block has medial surface and lateral surface, and the medial surface has curved surface compatible with outer end face, to realize that medial surface is contacted with the seamless of outer end face.The present invention uses the oil clearance cushion block with insulation performance, it has curved surface compatible with outer end face, realize that medial surface is contacted with the seamless of outer end face, it avoids and easily forms wedge-shaped oil clearance between high voltage transformer head end capacitance ring and first of cushion block, the phenomenon that making in transformer that there are local electric field strength concentrations, thus causing the shelf depreciation of transformer；Improve the stability of the electric field of high voltage transformer.
Description
Technical field
The present invention relates to high voltage transformer accessories field, more particularly to a kind of capacitance rings for high voltage transformer.
Background technology
Field distribution near high voltage winding overhang line segment be easy it is uneven, in order to improve high voltage winding overhang line segment
Neighbouring field distribution reduces the maximum field strength of winding overhang, capacitance ring is arranged on winding, by the lead and winding of capacitance ring
Start and link together.Due to having larger capacitance between each wire turn of first line cake of capacitance ring pair, so as to supplement
Capacitive earth current makes the turn-to-turn Potential distribution of the line cake be greatly improved.But after high voltage winding adds capacitance ring, capacitance
The end of ring and upper part circle certainly exists wedge-shaped oil clearance, makes thus to cause transformation there are local electric field strength concentration in transformer
The phenomenon that shelf depreciation of device oil, partial discharge amount increases, thus causes the shelf depreciation of transformer.
Invention content
The present invention provides a kind of capacitance ring for high voltage transformer so that existing high voltage transformer head end capacitance
The defect that wedge-shaped oil clearance is easily formed between ring and first of cushion block is addressed.
To solve the above problems, the invention discloses a kind of capacitance ring for high voltage transformer, the capacitance ring packet
Surrounding layer is included, there is the high voltage transformer end to enclose, and the surrounding layer includes the outer end face of adjacent end circle；The capacitance ring is also
Including being fixed on the oil clearance cushion block with insulation performance on surrounding layer, the oil clearance cushion block has medial surface and lateral surface, described
Medial surface has curved surface compatible with outer end face, to realize that medial surface is contacted with the seamless of outer end face.The present invention uses
Oil clearance cushion block with insulation performance, there is curved surface compatible with outer end face, realize the nothing of medial surface and outer end face
Gap contacts, and avoids and easily forms wedge-shaped oil clearance between high voltage transformer head end capacitance ring and first of cushion block, makes transformer
In there are local electric field strength concentrations, the phenomenon that thus causing the shelf depreciation of transformer；Improve the electricity of high voltage transformer
The stability of field.
Optionally, the surrounding layer further includes the inner face away from end circle, and the inner face and outer end face are symmetrical.
Optionally, the lateral surface is smooth curved surface.
Optionally, the oil clearance cushion block is made of several cable paper materials with identical size；Oil clearance cushion block
Production method is：
1) several cable papers are staggered successively, end face forms the cable quires of the parallelogram with on-right angle
Layer；
2) cable paper lamination is bent, and be wrapped on outer end face, form the medial surface of contact outer end face
With smooth lateral surface.The production method, production is convenient, of low cost.
Optionally, further include fixed band for the capacitance ring of high voltage transformer, be wrapped on the outside of oil clearance cushion block, being used for will
Oil clearance cushion block is fixed on surrounding layer.
Optionally, the fixed band is using the three wooden paper.
Optionally, it is adhered to each other by glue between the cable paper.
Compared with prior art, the technical program has the following advantages：
The present invention uses the oil clearance cushion block with insulation performance, has curved surface compatible with outer end face, realizes
Medial surface is contacted with the seamless of outer end face, is avoided and is easily formed between high voltage transformer head end capacitance ring and first of cushion block
Wedge-shaped oil clearance, makes in transformer that there are local electric field strength concentrations, the phenomenon that thus causing the shelf depreciation of transformer；It improves
The stability of the electric field of high voltage transformer.
In addition, the production method, production is convenient, of low cost.
Description of the drawings
Fig. 1 is the capacitance ring structure schematic diagram of voltage transformer of the embodiment of the present invention；
Fig. 2 is cable paper laminated construction schematic diagram of the embodiment of the present invention.
1, surrounding layer；2, end circle；3, outer end face；4, oil clearance cushion block；5, inner face；6, fixed band；11, medial surface；12, outer
Side；14, cable paper；15, cable paper lamination.
Specific implementation mode
Below in conjunction with the accompanying drawings, by specific embodiment, clear, complete description is carried out to technical scheme of the present invention.
Embodiment：The capacitance ring (see attached drawing 1,2) that the invention discloses a kind of for high voltage transformer, the capacitance ring
Including surrounding layer 1, the high voltage transformer has end circle 2, and the surrounding layer 1 includes the outer end face 3 of adjacent end circle 2；It is described
Capacitance ring further includes being fixed on the oil clearance cushion block 4 with insulation performance on surrounding layer 1, and the oil clearance cushion block 4 has medial surface 11
With lateral surface 12, the medial surface 11 has curved surface compatible with outer end face 3, to realize medial surface 11 and outer end face 3
Seamless contact.The present invention uses the oil clearance cushion block 4 with insulation performance, has curved surface compatible with outer end face 3,
Realize that medial surface 11 is contacted with the seamless of outer end face 3, avoid high voltage transformer head end capacitance ring and first cushion block it
Between easily form wedge-shaped oil clearance, make in transformer that there are local electric field strength concentrations, thus cause showing for the shelf depreciation of transformer
As；Improve the stability of the electric field of high voltage transformer.The capacitance ring of the present invention is located at the end of high voltage transformer.
The surrounding layer 1 further includes the inner face 5 away from end circle 2, and the inner face 5 and outer end face 3 are symmetrical.It is described
Lateral surface 12 is smooth curved surface.
The oil clearance cushion block 4 is made of several 14 materials of cable paper with identical size；The making of oil clearance cushion block 4
Method is：
1) several cable papers 14 are staggered successively, end face forms the cable quires of the parallelogram with on-right angle
Layer 15；
2) cable paper lamination 15 is bent, and be wrapped on outer end face 3, form the interior of contact outer end face 3
Side 11 and smooth lateral surface 12.The production method, production is convenient, of low cost.
The capacitance ring for high voltage transformer further includes fixed band 6, is wrapped in 4 outside of oil clearance cushion block, being used for will
Oil clearance cushion block 4 is fixed on surrounding layer 1.The fixed band 6 is using the three wooden paper.It is adhered to by glue between the cable paper 14
Together.
When the present embodiment is implemented, several cable papers are staggered successively, end face forms parallel four side with on-right angle
The cable paper lamination of shape；Cable paper lamination is bent, and is wrapped on outer end face by the three wooden paper, and it is outer to form contact
The medial surface of end face and smooth lateral surface.The production method, production is convenient, of low cost.
Although the invention has been described by way of example and in terms of the preferred embodiments, but it is not for limiting the present invention, any this field
Technical staff without departing from the spirit and scope of the present invention, may be by the methods and technical content of the disclosure above to this hair
Bright technical solution makes possible variation and modification, therefore, every content without departing from technical solution of the present invention, and according to the present invention
Technical spirit to any simple modifications, equivalents, and modifications made by above example, belong to technical solution of the present invention
Protection domain.
Claims (5)
1. a kind of capacitance ring for high voltage transformer, the capacitance ring includes surrounding layer, and the high voltage transformer has
End circle, it is characterised in that：The surrounding layer includes the outer end face of adjacent end circle；The capacitance ring further includes being fixed on surrounding layer
Oil clearance cushion block with insulation performance, the oil clearance cushion block have medial surface and lateral surface, and the medial surface has and outer end face
Compatible curved surface, to realize that medial surface is contacted with the seamless of outer end face；The lateral surface is smooth curved surface；The oil
Gap cushion block is made of several cable paper materials with identical size；The production method of oil clearance cushion block is：1) by several
Cable paper staggers successively, and end face forms the cable paper lamination of the parallelogram with on-right angle；2) by cable paper lamination into
Row bending, and be wrapped on outer end face, form the medial surface of contact outer end face and smooth lateral surface.
2. being used for the capacitance ring of high voltage transformer as described in claim 1, which is characterized in that the surrounding layer further includes the back of the body
Inner face from end circle, the inner face and outer end face are symmetrical.
3. being used for the capacitance ring of high voltage transformer as described in claim 1, which is characterized in that further include fixed band, package
On the outside of oil clearance cushion block, for oil clearance cushion block to be fixed on surrounding layer.
4. being used for the capacitance ring of high voltage transformer as claimed in claim 3, which is characterized in that the fixed band is using three wood
Paper.
5. being used for the capacitance ring of high voltage transformer as described in claim 1, which is characterized in that pass through between the cable paper
Glue is adhered to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611025303.4A CN106449062B (en) | 2016-11-18 | 2016-11-18 | Capacitance ring for high voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611025303.4A CN106449062B (en) | 2016-11-18 | 2016-11-18 | Capacitance ring for high voltage transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106449062A CN106449062A (en) | 2017-02-22 |
| CN106449062B true CN106449062B (en) | 2018-07-20 |
Family
ID=58221761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611025303.4A Active CN106449062B (en) | 2016-11-18 | 2016-11-18 | Capacitance ring for high voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106449062B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2884454Y (en) * | 2005-12-09 | 2007-03-28 | 中电电气集团有限公司 | High voltage coil electrostatic ring |
| JP2012064746A (en) * | 2010-09-16 | 2012-03-29 | Japan Ae Power Systems Corp | Stationary induction electric appliance |
| CN103050250A (en) * | 2012-12-25 | 2013-04-17 | 保定天威集团(江苏)五洲变压器有限公司 | Coil end insulation structure of transformer |
| CN204614640U (en) * | 2015-03-13 | 2015-09-02 | 山东达驰电气有限公司 | Transformer electrostatic ring cross section structure |
| CN105632726A (en) * | 2015-12-28 | 2016-06-01 | 保定天威保变电气股份有限公司 | Electrostatic ring capable of adjusting surface initial field intensity |
| CN205487697U (en) * | 2016-04-13 | 2016-08-17 | 潘秋萍 | Coil end insulation structure of transformer |
-
2016
- 2016-11-18 CN CN201611025303.4A patent/CN106449062B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2884454Y (en) * | 2005-12-09 | 2007-03-28 | 中电电气集团有限公司 | High voltage coil electrostatic ring |
| JP2012064746A (en) * | 2010-09-16 | 2012-03-29 | Japan Ae Power Systems Corp | Stationary induction electric appliance |
| CN103050250A (en) * | 2012-12-25 | 2013-04-17 | 保定天威集团(江苏)五洲变压器有限公司 | Coil end insulation structure of transformer |
| CN204614640U (en) * | 2015-03-13 | 2015-09-02 | 山东达驰电气有限公司 | Transformer electrostatic ring cross section structure |
| CN105632726A (en) * | 2015-12-28 | 2016-06-01 | 保定天威保变电气股份有限公司 | Electrostatic ring capable of adjusting surface initial field intensity |
| CN205487697U (en) * | 2016-04-13 | 2016-08-17 | 潘秋萍 | Coil end insulation structure of transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106449062A (en) | 2017-02-22 |
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