CN202816622U - Combination type insulation device - Google Patents
Combination type insulation device Download PDFInfo
- Publication number
- CN202816622U CN202816622U CN201220483682.2U CN201220483682U CN202816622U CN 202816622 U CN202816622 U CN 202816622U CN 201220483682 U CN201220483682 U CN 201220483682U CN 202816622 U CN202816622 U CN 202816622U
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- oil tank
- insulation device
- combination type
- oil
- insulation
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Abstract
A combination type insulation device is designed to meet the requirement of the insulation distance between an electrified body of a high-voltage on-load tap changer and an oil tank, and to lower partial discharge. The combination type insulation device mainly comprises insulative paper boards and supporting bars, paralleled supporting bars are evenly distributed between each two adjacent insulative paper boards at intervals to form an insulative combination unit, positioning hole clamping positions on the corners of the insulative paper boards are used for positioning the supporting bars, and therefore an oil adding clearance is formed between each two supporting bars. The combination type insulation device has the advantages that the principle that 'paper barrels are thin and oil adding clearances are small' is followed, the insulation device which is similar to an insulation structure of a main empty road of high-voltage coils and low-voltage coils is additionally arranged at the bottom of an oil tank, the requirement of the insulation distance is met, the height of the oil tank does not need to be increased at the same time, and therefore increase of oil in a transformer can not be caused; and the purposes that when volume of the oil tank is little and height difference of the oil tank and the on-load tap changer is small, the requirement of the insulation distance between the electrified body of the on-load tap changer and the oil tank is met, the combination type insulation device is simple in structure and easy to implement, and the purposes of saving cost and lowering the partial discharge are achieved.
Description
Technical field:
The utility model relates to a kind of seal, relates in particular to a kind of Combined insulating device for solving the insulation distance between high voltage on-load voltage regulating switch electrified body and the fuel tank.
Background technology:
In order to make things convenient for pressure regulation, to realize intellectuality, mostly adopt on-load tap-changing transformer for projects such as at present a lot of power plant and smelteries.But less or switch is special when higher when transformer capacity, the height of fuel tank and the height of shunting switch differ very little, can not satisfy the insulation distance requirement, but can satisfy mechanical distance the time, want to ensure the insulation distance between voltage adjustment of on-load switch electrified body and the fuel tank, or increase the fuel tank height; Upper oil tank is made stairstepping, namely only increase switch-side; When switch-side was increased, the loaded switch support also must be raised thereupon and enter the part of raising in the device body, and this structure will be because reasons in structure will cause the fuel tank long axis direction to lengthen.Above two kinds of structures all can cause the increase of transformer oil in a word.
Summary of the invention:
The utility model is in order to solve the insulation distance between high voltage on-load voltage regulating switch electrified body and the fuel tank, the technical problem such as is put in simultaneously reduction office, a kind of Combined insulating device is provided, it mainly is comprised of insulating board and stay, by the insulation combination unit that is evenly equipped with the described stay that keeps spacing and be parallel to each other between two adjacent described insulating boards and consists of, and by being positioned at the location, location hole clamping position of insulating board edge, make to form between per two stays to add oil clearance.
The beneficial effects of the utility model: the principle of following " thin paper cylinder, small oil gap ", added a seal that is similar to high-voltage coil and low-voltage coil main empty path insulation system in the case bottom, namely satisfied the insulation distance requirement, simultaneously needn't increase the height of fuel tank again, and can not cause the increase of transformer oil; When the height of the less and fuel tank of the capacity of having realized and the height of shunting switch differ very little, satisfy the insulation distance between tap changer electrified body and the fuel tank, not only simple for structure, and reached and save the purpose that cost, reduction office are put.
Description of drawings:
Fig. 1 structural representation of the present utility model
Fig. 2 is the plan structure schematic diagram of Fig. 1
Fig. 3 the utility model is connection diagram between on load tap changer and fuel tank
Embodiment:
Referring to Fig. 1-Fig. 3, the Combined insulating device, it mainly is comprised of insulating board 1 and stay 2, by the insulation combination unit that is evenly equipped with the described stay 2 that keeps spacing and be parallel to each other between two adjacent described insulating boards 1 and consists of, and the location, location hole 3 clamping position by being positioned at insulating board 1 edge, make to form between per two stays 2 to add oil clearance 7.
Height according to fuel tank and shunting switch adopts two-layer at least insulation combination unit.
Described insulation combination unit is provided with shielding cap 6 by location hole 3 and bolt and nut 4,5 clamping and positioning at described bolt and nut 4,5.
Referring to Fig. 1, Fig. 2, the Combined insulating device is made and is similar to high-voltage coil and low-voltage coil main empty path insulation system, be i.e. " thin paper cylinder, small oil gap " structure.
It by cardboard 1, add that oil clearance 7(namely keeps spacing and the described stay 2 that is parallel to each other forms), add cardboard 1, add that oil clearance 7(namely keeps spacing and the described stay 2 that is parallel to each other forms), add cardboard 1(as required) the sequential combination that stacks form, and the location, location hole 3 clamping position by being positioned at insulating board 1 edge, the Combined insulating device of an integral body of formation.
This Combined insulating device can calculate and the adjustment of electric Field Calculation situation and selection insulation combination elementary layer according to insulation.
Referring to Fig. 3, in when assembling, the Combined insulating device that drying is good be fixed on the lower oil tank along or case at the bottom of the screw rod that welds in advance 4 on, it is fastening to add nut 5, and adds the wedge angle of shielding cap 6 shielding securing members, reduces partial discharge.This kind structure is under the prerequisite that has guaranteed the insulation distance between high voltage on-load voltage regulating switch 9 electrified bodies and the fuel tank 8, and is easy and simple to handle, and economical with materials has been avoided increasing not fuel tank because of insulation distance, and caused increasing the drawback of oil mass.
Claims (3)
1. Combined insulating device, it mainly is comprised of insulating board (1) and stay (2), it is characterized in that: by the insulation combination unit that is evenly equipped with the described stay (2) that keeps spacing and be parallel to each other between adjacent two described insulating boards (1) and consists of, and by being positioned at the location, location hole (3) clamping position of insulating board (1) edge, make to form between per two stays (2) to add oil clearance (7).
2. the Combined insulating device shown in according to claim 1, it is characterized in that: the height according to fuel tank and shunting switch adopts two-layer at least insulation combination unit.
3. the Combined insulating device shown in according to claim 1, it is characterized in that: described insulation combination unit is provided with shielding cap (6) by location hole (3) and bolt and nut (4,5) clamping and positioning at described bolt and nut (4,5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220483682.2U CN202816622U (en) | 2012-09-21 | 2012-09-21 | Combination type insulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220483682.2U CN202816622U (en) | 2012-09-21 | 2012-09-21 | Combination type insulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202816622U true CN202816622U (en) | 2013-03-20 |
Family
ID=47875467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220483682.2U Expired - Lifetime CN202816622U (en) | 2012-09-21 | 2012-09-21 | Combination type insulation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202816622U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957740A (en) * | 2016-07-15 | 2016-09-21 | 武汉泰普联合分接开关股份有限公司 | Non-excitation tap switch with isolation plate |
| CN108389700A (en) * | 2018-05-18 | 2018-08-10 | 吴江远洋电气有限责任公司 | A kind of combined insulation device |
-
2012
- 2012-09-21 CN CN201220483682.2U patent/CN202816622U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957740A (en) * | 2016-07-15 | 2016-09-21 | 武汉泰普联合分接开关股份有限公司 | Non-excitation tap switch with isolation plate |
| CN105957740B (en) * | 2016-07-15 | 2019-04-16 | 武汉泰普联合分接开关股份有限公司 | A kind of off circuit tap changer with isolation board |
| CN108389700A (en) * | 2018-05-18 | 2018-08-10 | 吴江远洋电气有限责任公司 | A kind of combined insulation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |
|
| CX01 | Expiry of patent term |