CN201975227U - Insulating device for high-voltage tapping leads - Google Patents
Insulating device for high-voltage tapping leads Download PDFInfo
- Publication number
- CN201975227U CN201975227U CN2010206997389U CN201020699738U CN201975227U CN 201975227 U CN201975227 U CN 201975227U CN 2010206997389 U CN2010206997389 U CN 2010206997389U CN 201020699738 U CN201020699738 U CN 201020699738U CN 201975227 U CN201975227 U CN 201975227U
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- Prior art keywords
- voltage tap
- insulating cylinder
- tap lead
- lead
- fixed head
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Abstract
The utility model provides an insulating device for high-voltage tapping leads, which comprises two support pieces and insulating cylinders, wherein the two support pieces are respectively arranged adjacent to the outer sides at two ends of a lead path between two phases of a three-phase split combined transformer; and the insulating cylinders are arranged on the two support pieces, penetrate through and are arranged in the lead path and are sleeved outside multiple high-voltage tapping leads. According to the insulating device for the high-voltage tapping leads, which is provided by the utility model, the support pieces and the insulating cylinders are arranged to provide the horizontal and vertical degrees of freedom of the high-voltage tapping leads when the high-voltage tapping leads pass through the parts among the phases, and thus the insulating distance of the high-voltage tapping leads is ensured and the safe stability of the three-phase split combined transformer is improved.
Description
Technical field
The utility model relates to three-phase separate assembling transformer device structure technology, relates in particular to a kind of high-voltage tap lead seal.
Background technology
Along with the construction that country strengthens infrastructure, a large amount of large-scale power stations and transformer station have all been built in a lot of areas, and the demand of high-power transformer increases.Some regional physical features is more dangerous, and transportation condition is abominable, has inconvenient traffic, and high-power transformer can't be transported to.For solving transportation problem, three-phase separate assembling high-power transformer technology has obtained developing by leaps and bounds.
Three-phase split combined transformer is to be formed by three single-phase transformer combinations.Three single-phase transformer independent magnetic circuits, common circuit, oil circuit and gas circuits, alternate with the connection of wavy metal joint, lead-in wire passes through to connect from the wavy metal joint.For three-phase split combined transformer with tap changer, usually in order to save cost, often only one a shunting switch is set mutually therein, other two phase terminal then connects by the ripple joint, lead-in wire pipeline and ripple joint form the lead-in wire path, and high-voltage tap lead is connected with shunting switch by the lead-in wire path.But because high-voltage tap lead voltage is higher, quantity is more, when directly saving by ripple, insulation distance and partial discharge are difficult to control, have influenced the performance of three-phase split combined transformer, also cause the accident easily.
The utility model content
The utility model provides a kind of high-voltage tap lead seal, to improve the security reliability of three-phase separate assembling transformer.
The utility model provides a kind of high-voltage tap lead seal, comprising:
Strutting piece, the quantity of described strutting piece is two, is respectively adjacent to the two ends arranged outside of the alternate lead-in wire path of three-phase separate assembling transformer two;
Insulating cylinder is arranged on two described strutting pieces, and described insulating cylinder is located in the described lead-in wire path, and is set in the outside of many high-voltage tap leads.
Aforesaid high-voltage tap lead seal also comprises:
Fixed head is fixed in the described insulating cylinder, and the quantity of described fixed head is two, is respectively adjacent to inboard setting the in two ends of described insulating cylinder, and described fixed head is provided with a plurality of spacing holes, and each described high-voltage tap lead passes described spacing hole respectively.
Aforesaid high-voltage tap lead seal, wherein,
The inwall of described insulating cylinder is provided with insulating board.
Aforesaid high-voltage tap lead seal also comprises:
Limiting plate is fixedlyed connected with the outer wall of described insulating cylinder, the contiguous described strutting piece setting of described limiting plate, and the quantity of described limiting plate is two, two described limiting plates are arranged between two described strutting pieces simultaneously, or outside two described strutting pieces.
Aforesaid high-voltage tap lead seal, wherein,
Described strutting piece be shaped as the shape of a saddle.
Aforesaid high-voltage tap lead seal, wherein,
Described fixed head is provided with the oil circuit through hole.
As shown from the above technical solution, the utility model provides the high-voltage tap lead seal, setting by strutting piece and insulating cylinder, guaranteed the insulation against ground distance of high-voltage tap lead, help controlling the horizontal vertical degree of freedom of high-voltage tap lead, improve insulation property, and then improved the security and stability of three-phase separate assembling transformer.
Description of drawings
The high-voltage tap lead seal structural representation that Fig. 1 provides for the utility model embodiment;
Fig. 2 is the high-voltage tap lead seal side-looking structural representation of Fig. 1.
Reference numeral:
The 1-strutting piece; The 2-insulating cylinder; 3-ripple joint;
The 4-high-voltage tap lead; The 5-fixed head; The 6-spacing hole;
The 7-insulating board; The 8-limiting plate; 9-oil circuit through hole.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment is clearer,, the technical scheme among the utility model embodiment is clearly and completely described below in conjunction with the utility model embodiment.Need to prove that in accompanying drawing or specification, similar or components identical is all used identical Reference numeral.
The high-voltage tap lead seal structural representation that Fig. 1 provides for the utility model embodiment, Fig. 2 is the high-voltage tap lead seal side-looking structural representation of Fig. 1, as depicted in figs. 1 and 2, this high-voltage tap lead seal comprises strutting piece 1 and insulating cylinder 2.The quantity of strutting piece 1 is two, is respectively adjacent to the two ends arranged outside of the alternate lead-in wire path of three-phase separate assembling transformer two.Insulating cylinder 2 is arranged on two strutting pieces 1, and insulating cylinder 2 is located in the lead-in wire path, and is set in the outside of many high-voltage tap leads 4.In actual application, three-phase separate assembling transformer two is alternate with the connection of lead-in wire path, the lead-in wire path comprises that specifically two lead-in wire pipelines and the ripple that is connected between the lead-in wire pipeline save 3, high-voltage tap lead 4 is located in the lead-in wire path, high-voltage tap lead 4 specifically is made of the copper stranded conductor of certain bag heavy insulation, conduction current under high voltage.Strutting piece 1 is specifically fixedlyed connected with ground, and 1 pair of insulating cylinder 2 of strutting piece is played a supporting role, and makes insulating cylinder 2 be in the centre of lead-in wire path, has improved the insulation distance of insulating cylinder 2.Insulating cylinder 2 is for having certain thickness tubular structure, high-voltage tap lead 4 passes insulating cylinder 2, the position of high-voltage tap lead 4 is subjected to the position limit of insulating cylinder 2, and then also improved the insulation distance over the ground of high-voltage tap lead 4, avoided the potential safety hazard of discharging over the ground and producing owing to high-voltage tap lead 4.
The high-voltage tap lead seal that present embodiment provides, by the setting of strutting piece 1 and insulating cylinder 2, insulating cylinder 2 is arranged on the strutting piece 1, and is set in high-voltage tap lead 4, the vertical position of high-voltage tap lead 4 is improved, controlled the insulation distance of high-voltage tap lead 4.And when situations such as the foundation deformation of three-phase separate assembling transformer or earthquake, residing two the monomer fuel tank positions of two-phase that lead-in wire path or lead-in wire path are communicated with change, but insulating cylinder 2 still can keep horizontal and vertical position constant, when guaranteeing insulation distance, the bit shift compensation of level and vertical direction is provided, has improved the security reliability of three-phase separate assembling transformer.
In the present embodiment, the high-voltage tap lead seal can also comprise fixed head 5, fixed head 5 is fixed in the insulating cylinder 2, the quantity of fixed head 5 is two, be respectively adjacent to inboard setting the in two ends of insulating cylinder 2, fixed head 5 is provided with a plurality of spacing holes 6, and each high-voltage tap lead 4 passes spacing hole 6 respectively.The shape of fixed head 5 can be circle, and its diameter equates substantially with the internal diameter of insulating cylinder 2, fixed head 5 can by insulation blanket stud fixing in insulating cylinder 2.The particular location of 6 pairs of high-voltage tap leads 4 of spacing hole limits, and many high-voltage tap leads 4 are arranged in an orderly manner.Preferably, the diameter of spacing hole 6 equates with the external diameter of high-voltage tap lead 4, so that high-voltage tap lead 4 is played fixation.The quantity of spacing hole 6 specifically can be provided with according to the quantity of high-voltage tap lead 4, and the arrangement mode of spacing hole 6 can be circle, also can not exceed with present embodiment for other arrangement modes.
In the present embodiment, the inwall of insulating cylinder 2 can also be provided with insulating board 7.Insulating board 7 can be for having certain thickness tubular structure.By the setting of insulating board 7, can improve the dielectric strength of high-voltage tap lead, evenly the peripheral electric field of lead-in wire reduces partial discharge, has further improved the security and stability of three-phase separate assembling transformer.Insulating board 7 inwalls can also be provided with an insulating board 7 again, specifically can be fixing by fixed head 5, can further improve insulation property.
In the present embodiment, the high-voltage tap lead seal can also comprise limiting plate 8, and limiting plate 8 is fixedlyed connected with the outer wall of insulating cylinder 2, and is concrete, and limiting plate 8 is connected with the processing outer wall of insulating cylinder 2.The contiguous strutting pieces 1 of limiting plate 8 are provided with, and the quantity of limiting plate 8 is two, and two limiting plates 8 are arranged between two strutting pieces 1 simultaneously, or outside two strutting pieces 1.By being used of limiting plate 8 and strutting piece 1, can the horizontal level of insulating cylinder 2 be limited, avoid moving axially of insulating cylinder 2, and then improved the steadiness of high-voltage tap lead 4.
In the present embodiment, the shape of strutting piece 1 is specifically as follows the shape of a saddle, has improved the stability of strutting piece 1.Concrete, strutting piece 1 is used for the shape of draw-in groove of supports insulative tube 2 and the shape of insulating cylinder 2 is complementary, and the bearing height of strutting piece 1 can be provided with according to insulating requirements.
In the present embodiment, can also be provided with oil circuit through hole 9 on the fixed head 5.The quantity of oil circuit through hole 9 can also can by the setting of oil circuit through hole 9, improve the oil circuit smoothness for a plurality of for one.
The high-voltage tap lead seal that the utility model provides, setting by strutting piece and insulating cylinder, guaranteed the insulation against ground distance of high-voltage tap lead, help controlling the horizontal vertical degree of freedom of high-voltage tap lead, fully guarantee insulation property, and then improved the security and stability of three-phase separate assembling transformer.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that previous embodiment is put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (6)
1. a high-voltage tap lead seal is characterized in that, comprising:
Strutting piece, the quantity of described strutting piece is two, is respectively adjacent to the two ends arranged outside of the alternate lead-in wire path of three-phase separate assembling transformer two;
Insulating cylinder is arranged on two described strutting pieces, and described insulating cylinder is located in the described lead-in wire path, and is set in the outside of many high-voltage tap leads.
2. high-voltage tap lead seal according to claim 1 is characterized in that, also comprises:
Fixed head is fixed in the described insulating cylinder, and the quantity of described fixed head is two, is respectively adjacent to inboard setting the in two ends of described insulating cylinder, and described fixed head is provided with a plurality of spacing holes, and each described high-voltage tap lead passes described spacing hole respectively.
3. high-voltage tap lead seal according to claim 1 and 2 is characterized in that:
The inwall of described insulating cylinder is provided with insulating board.
4. high-voltage tap lead seal according to claim 1 and 2 is characterized in that, also comprises:
Limiting plate is fixedlyed connected with the outer wall of described insulating cylinder, the contiguous described strutting piece setting of described limiting plate, and the quantity of described limiting plate is two, two described limiting plates are arranged between two described strutting pieces simultaneously, or outside two described strutting pieces.
5. high-voltage tap lead seal according to claim 1 and 2 is characterized in that:
Described strutting piece be shaped as the shape of a saddle.
6. high-voltage tap lead seal according to claim 2 is characterized in that:
Described fixed head is provided with the oil circuit through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206997389U CN201975227U (en) | 2010-12-31 | 2010-12-31 | Insulating device for high-voltage tapping leads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206997389U CN201975227U (en) | 2010-12-31 | 2010-12-31 | Insulating device for high-voltage tapping leads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201975227U true CN201975227U (en) | 2011-09-14 |
Family
ID=44580325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206997389U Expired - Fee Related CN201975227U (en) | 2010-12-31 | 2010-12-31 | Insulating device for high-voltage tapping leads |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201975227U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102543392A (en) * | 2012-02-08 | 2012-07-04 | 通变电器有限公司 | Insulating ring |
| CN103077810A (en) * | 2012-12-27 | 2013-05-01 | 吴江市变压器厂有限公司 | Clamping structure for tapping lead of transformer |
-
2010
- 2010-12-31 CN CN2010206997389U patent/CN201975227U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102543392A (en) * | 2012-02-08 | 2012-07-04 | 通变电器有限公司 | Insulating ring |
| CN103077810A (en) * | 2012-12-27 | 2013-05-01 | 吴江市变压器厂有限公司 | Clamping structure for tapping lead of transformer |
| CN103077810B (en) * | 2012-12-27 | 2016-02-17 | 吴江变压器有限公司 | A kind of transformer tapping lead clamp structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20161231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |