CN2613863Y - Insulation structure attatched to 220 KV sleeved voltage equalizing balls - Google Patents
Insulation structure attatched to 220 KV sleeved voltage equalizing balls Download PDFInfo
- Publication number
- CN2613863Y CN2613863Y CN 03227314 CN03227314U CN2613863Y CN 2613863 Y CN2613863 Y CN 2613863Y CN 03227314 CN03227314 CN 03227314 CN 03227314 U CN03227314 U CN 03227314U CN 2613863 Y CN2613863 Y CN 2613863Y
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- Prior art keywords
- voltage equalizing
- voltage
- sleeve pipe
- utility
- model
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- Expired - Lifetime
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Abstract
The utility model discloses a 220 kV casing voltage-sharing ball insulating structure, which is characterized in that the inner walls of the insulating tube (5) with an opening is evenly stuck with insulating block (4). When in use, the insulating tube (5) surrounds around the voltage-sharing ball (3) of casing (1), and the outside is bundled with the Dannisong insulating paper. By employing the structure of the utility model, a small oil clearance is formed around the voltage-sharing ball (3) for effectively improving the distribution of the electric field around the voltage-sharing ball (3) and reducing the distance from the casing voltage-sharing ball to the ground. The utility model has the advantages of convenient manufacturing and lower manufacturing cost.
Description
Technical field
The utility model relates to technical field of transformer manufacturing, particularly the attached insulation system of 220kV sleeve pipe voltage equalizing ball.
Background technology
Along with the manufacturing technology of transformer and improving constantly of insulating material quality, the insulation distance of transformer inside designs more and more forr a short time, along with constantly dwindling of distance, it is more and more nervous to make the transformer internal structure arrange, especially at 220kV level transformer high-voltage side sleeve pipe, the sleeve pipe voltage equalizing ball over the ground between required distance very big, bring very big difficulty to design of transformer.At present the 220kV sleeve pipe that adopts in domestic each the transformer manufactory of China raises the size general provision of seat about φ 850mm, and distance to the ground requires to be 750mm, therefore design difficulty relatively.In order to reduce these sizes, transformer industry is generally all taked in the attached insulation of sleeve pipe voltage equalizing ball (as shown in Figure 1), and insulation thickness is generally 3～6mm.This structure can reduce effectively the sleeve pipe voltage equalizing ball over the ground between distance.But because attached insulation must just can be carried out in special insulation manufacturing firm, this has brought very big trouble to the manufacturing, and price is very expensive, and cost per unit has improved product cost greatly up to more than 1800 yuan.
Summary of the invention
Goal of the invention of the present utility model provide a kind of can reduce the sleeve pipe voltage equalizing ball over the ground between distance, and the low attached insulation system of 220kV sleeve pipe voltage equalizing ball of cost.To solve the higher problem of cost that attached insulation exists on the existing sleeve pipe voltage equalizing ball.
Goal of the invention of the present utility model can adopt following technical measures to realize: the attached insulation system of 220kV sleeve pipe voltage equalizing ball is characterized in that being stained with collets equably at the inwall of the insulating cylinder of an opening.
During use, insulating cylinder is trapped among on the voltage equalizing ball of sleeve pipe, solid the getting final product of Dan Nisong insulating paper colligation used in the outside.After adopting this structure of the utility model, around voltage equalizing ball, form a small oil gap, thereby improved the Electric Field Distribution around the voltage equalizing ball effectively, reduced the distance of sleeve pipe voltage equalizing ball between over the ground.The utility model is easily manufactured in addition, the advantage that cost is low.
Description of drawings
Fig. 1 is the structural representation of attached insulation on the existing sleeve pipe voltage equalizing ball;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 is the schematic diagram of the utility model colligation on the sleeve pipe voltage equalizing ball.
Embodiment
Attached insulation on the existing sleeve pipe voltage equalizing ball as shown in Figure 1, wherein 1 is sleeve pipe, and 2 is attached insulation, and 3 is voltage equalizing ball.
The attached insulation system of 220kV sleeve pipe voltage equalizing ball as shown in Figure 2 is that the inwall at the insulating cylinder 5 of an opening is stained with eight collets 4 equably.Insulating cylinder 5 thickness are generally 1.5～3mm, and collets 4 thickness are generally 8～10mm.
As shown in Figure 3, as shown in Figure 2 the insulating cylinder that is stained with collets 45 is trapped among on the voltage equalizing ball 3 of sleeve pipe 1, the outside is with solid the getting final product of Dan Nisong insulating paper colligation.
Claims (2)
1, the attached insulation system of 220kV sleeve pipe voltage equalizing ball is characterized in that being stained with collets (4) equably at the inwall of the insulating cylinder (5) of an opening.
2, the attached insulation system of 220kV sleeve pipe voltage equalizing ball according to claim 1 is characterized in that insulating cylinder (5) thickness is generally 1.5～3mm, and collets (4) thickness is generally 8～10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03227314 CN2613863Y (en) | 2003-04-04 | 2003-04-04 | Insulation structure attatched to 220 KV sleeved voltage equalizing balls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03227314 CN2613863Y (en) | 2003-04-04 | 2003-04-04 | Insulation structure attatched to 220 KV sleeved voltage equalizing balls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2613863Y true CN2613863Y (en) | 2004-04-28 |
Family
ID=34246815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03227314 Expired - Lifetime CN2613863Y (en) | 2003-04-04 | 2003-04-04 | Insulation structure attatched to 220 KV sleeved voltage equalizing balls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2613863Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101425370B (en) * | 2008-05-07 | 2010-12-22 | 常州市英中电气有限公司 | Insulation voltage equalizing tube used for super-high or extra-high voltage transformer and production process thereof |
| CN101425369B (en) * | 2008-05-07 | 2011-04-20 | 常州市英中电气有限公司 | Insulation voltage equalizing ball used for super-high or extra-high voltage transformer and production process thereof |
| CN105469935A (en) * | 2016-01-14 | 2016-04-06 | 天威保变(合肥)变压器有限公司 | Protective insulating cylinder for voltage-equalizing ball in transformer bushing oil |
| CN111696753A (en) * | 2020-04-02 | 2020-09-22 | 山东电力设备有限公司 | Voltage-equalizing ball for transformer |
-
2003
- 2003-04-04 CN CN 03227314 patent/CN2613863Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101425370B (en) * | 2008-05-07 | 2010-12-22 | 常州市英中电气有限公司 | Insulation voltage equalizing tube used for super-high or extra-high voltage transformer and production process thereof |
| CN101425369B (en) * | 2008-05-07 | 2011-04-20 | 常州市英中电气有限公司 | Insulation voltage equalizing ball used for super-high or extra-high voltage transformer and production process thereof |
| CN105469935A (en) * | 2016-01-14 | 2016-04-06 | 天威保变(合肥)变压器有限公司 | Protective insulating cylinder for voltage-equalizing ball in transformer bushing oil |
| CN111696753A (en) * | 2020-04-02 | 2020-09-22 | 山东电力设备有限公司 | Voltage-equalizing ball for transformer |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130408 Granted publication date: 20040428 |