CN202196627U - 72.5kV mutual inductor supporting porcelain sleeve - Google Patents
72.5kV mutual inductor supporting porcelain sleeve Download PDFInfo
- Publication number
- CN202196627U CN202196627U CN2011202443449U CN201120244344U CN202196627U CN 202196627 U CN202196627 U CN 202196627U CN 2011202443449 U CN2011202443449 U CN 2011202443449U CN 201120244344 U CN201120244344 U CN 201120244344U CN 202196627 U CN202196627 U CN 202196627U
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- CN
- China
- Prior art keywords
- conical ring
- ring
- porcelain sleeve
- conical
- support bushing
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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Abstract
The present utility model belongs to the high voltage electric appliance technology field, especially to a mutual inductor supporting porcelain sleeve suitable for 72.5kV, and the porcelain sleeve is composed of a supporting porcelain sleeve body and conical rings. The supporting porcelain sleeve is characterized in that the excircle of the supporting porcelain sleeve body is provided with 17 groups of conical rings, each group of conical ring is composed of a small conical ring and a large conical ring, the same direction distance between a large end face of a neighboring small conical ring and a large end face of a large conical ring is 24mm, the same direction distance between large end faces of two neighboring large conical rings is 59mm, the positioning dimension of each small conical ring on an end face of the supporting porcelain sleeve body is 90mm, round porcelain sand is sprayed on an outer cylindrical surface of the supporting porcelain sleeve body, the sandblast length is 60mm, the maximal diameter after the sandblast is 150mm, the root diameter of the conical rings is 120mm, the diameters of each small conical ring and each conical ring are 224mm and 254mm respectively, and the overall length is 1100mm. The supporting porcelain sleeve is reasonable in structure and convenient for installing. Test results show that the by adopting the supporting porcelain sleeve, a need of 72.5kV voltage class can be satisfied, and electrical insulation and dustproof performance, mechanical performance and creepage distance can be enhanced.
Description
Technical field:
The utility model belongs to high voltage electrical apparatus technical field, relates in particular to a kind of 72.5kV of being applicable to instrument transformer support bushing.
Background technology:
At present; The 72.5kV instrument transformer support bushing that uses on the market is owing to physical dimension and external shape is unreasonable; There are resistance to soiling, bad mechanical property; Hydraulic pressure resistance intensity, the shortcoming that high-temperature capability is low, thus the electric equipment security performance and the creepage distance of instrument transformer product reduced, influenced technology and instructions for use.
Summary of the invention:
The purpose of the utility model is for a kind of 72.5kV instrument transformer support bushing is provided.
It is to implement like this that the utility model solves the technical scheme that its technical problem adopted: 72.5kV instrument transformer support bushing, form by support bushing body and conical ring, and it is characterized in that:
A) cylindrical of support bushing body is provided with 17 groups of conical rings; Every group of conical ring comprises a little conical ring and large conic ring; Adjacent conelet ring large end face is 24mm to the distance in the same way of large conic ring large end face; The distance in the same way of two adjacent large conic ring large end faces is 59mm, and little conical ring is 90mm in support bushing body end face location dimension
B) outer cylinder at the support bushing body is sprayed with circular porcelain sand, and sandblast length is 60mm, and the maximum gauge after the sandblast is 150mm,
C) root diameter (RD) of conical ring is 120mm, and little conical ring and large conic ring diameter dimension are respectively 224mm and 254mm.
72.5kV the length overall of instrument transformer support bushing is of a size of 1100mm.
The utlity model has characteristics such as rational in infrastructure, easy for installation, test result shows, not only can satisfy the needs of 72.5kV electric pressure, and has improved electric insulation, anti-dust performance and mechanical performance and creepage distance.
Description of drawings:
Accompanying drawing 1 is the structural representation front view of the utility model.
Among the figure: 1. support bushing body, 2. little conical ring, 3. large conic ring, 4. circular porcelain sand.
L1---conelet ring large end face is to the distance in the same way of large conic ring large end face,
L2---the distance in the same way of two adjacent large conic ring large end faces,
L3---conelet ring is apart from support bushing body end face location dimension,
L4---sandblast length,
The length overall size of L5---support bushing,
D1---the maximum gauge after the sandblast,
The root diameter (RD) of d2---conical ring,
D3---conelet ring diameter,
D4---large conic ring diameter.
Embodiment:
Shown in accompanying drawing 1,72.5kV instrument transformer support bushing is made up of support bushing body and conical ring.It is characterized in that:
A) cylindrical of insulator body 1 is provided with 17 groups of conical rings; Every group of conical ring comprises a conelet ring 2 and large conic ring 3; Adjacent conelet ring 2 large end faces are 24mm to the distance L in the same way 1 of large conic ring 3 large end faces; The distance L in the same way 2 of two adjacent large conic ring 3 large end faces is 59mm, and conelet ring 2 is L390mm apart from support bushing body 1 end face location dimension
B) outer cylinder at support bushing body 1 is sprayed with circular porcelain sand 4, and sandblast length L 4 is 60mm, and the maximum diameter d 1 after the sandblast is 150mm,
C) the root diameter (RD) d2 of conical ring is 120mm, and conelet ring 2 is respectively 224mm and 254mm with large conic ring 3 diameter d 3 with the d4 size.
72.5kV the length overall size L5 of instrument transformer support bushing is 1100mm.
Owing to adopted said structure, the utlity model has characteristics such as rational in infrastructure, easy for installation, test result shows, not only can satisfy the needs of 72.5kV electric pressure, and has improved electric insulation, anti-dust performance and mechanical performance and creepage distance.
Claims (2)
1.72.5kV the instrument transformer support bushing is made up of support bushing body and conical ring, it is characterized in that:
A) cylindrical of support bushing body (1) is provided with 17 groups of conical rings; Every group of conical ring comprises a little conical ring (2) and large conic ring (3); Adjacent little conical ring (2) large end face is 24mm to the distance (L1) in the same way of large conic ring (3) large end face; The distance (L2) in the same way of two adjacent large conic ring (3) large end faces is 59mm, and little conical ring (2) is (L3) 90mm apart from support bushing body (1) end face location dimension
B) outer cylinder at support bushing body (1) is sprayed with circular porcelain sand (4), and sandblast length (L4) is 60mm, and the maximum gauge after the sandblast (d1) is 150mm,
C) root diameter (RD) of conical ring is (d2) 120mm, little conical ring (2) and large conic ring (3) diameter (d3) and (d4) size be respectively 224mm and 254mm.
2. 72.5kV instrument transformer support bushing according to claim 1 is characterized in that: the length overall size (L5) of 72.5kV instrument transformer support bushing is 1100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202443449U CN202196627U (en) | 2011-07-12 | 2011-07-12 | 72.5kV mutual inductor supporting porcelain sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202443449U CN202196627U (en) | 2011-07-12 | 2011-07-12 | 72.5kV mutual inductor supporting porcelain sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202196627U true CN202196627U (en) | 2012-04-18 |
Family
ID=45951528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202443449U Expired - Fee Related CN202196627U (en) | 2011-07-12 | 2011-07-12 | 72.5kV mutual inductor supporting porcelain sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202196627U (en) |
-
2011
- 2011-07-12 CN CN2011202443449U patent/CN202196627U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20120712 |