CN203055635U - Transformer porcelain cover - Google Patents
Transformer porcelain cover Download PDFInfo
- Publication number
- CN203055635U CN203055635U CN 201220695787 CN201220695787U CN203055635U CN 203055635 U CN203055635 U CN 203055635U CN 201220695787 CN201220695787 CN 201220695787 CN 201220695787 U CN201220695787 U CN 201220695787U CN 203055635 U CN203055635 U CN 203055635U
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- CN
- China
- Prior art keywords
- cover
- oil tank
- fuel tank
- groove
- insulator
- 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 utility model discloses a transformer porcelain cover. The outer circumferential wall of the lower end portion of the porcelain cover is provided with an outwards protruding stair and a groove. When the porcelain cover is placed in an oil tank from an oil tank hole, an oil tank cover is arranged between the outwards protruding stair and the groove. A seal ring is installed between the outwards protruding stair and the oil tank cover. A circular spring is embedded in the groove, a pressing ring capable of pressing the circular spring is installed on the periphery of the circular spring, a bolt is arranged on the pressing ring, the head portion of the bolt abuts against the oil tank cover, the outer circle of the porcelain cover is further provided with a network cable hole, and the lower end of a conductive pole is connected with a copper wire. According to the transformer porcelain cover, main electrification portions of the porcelain cover are all arranged in the oil tank instead of exposed in air and cannot rust, accidents caused by damages out of weather factors or man-made reasons cannot occur, the structure is compact, the appearance size is small, and the creepage distance is large.
Description
Technical field
The utility model belongs to the power transformer technical field, relates in particular to a kind of porcelain shell for transformer.
Background technology
In the existing power transformer technology, the mounting means of 20KV level power transformer sleeve pipe is the outside structure that compresses with presser feet or pressing plate, expose structural member and get rusty easily, and outside thrust is inhomogeneous also may cause phenomenon of osmosis.
The utility model content
The utility model discloses a kind of main charged position all in fuel tank and be not exposed in the air, can not get rusty, can accidents happened because weather conditions or artificial origin are impaired, compact conformation, overall dimension is little, creepage distance is big bushing shell for transformer.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme, and a kind of porcelain shell for transformer is provided, and the bottom periphery wall of described insulator is provided with evagination step and groove; Its fuel tank was placed between outer lug boss rank and the groove when insulator was packed into the fuel tank from the fuel tank hole, between evagination step and the fuel tank cap sealing ring was installed; Be embedded with coil component spring in the described groove, be peripherally equipped with the pressure ring that to push down coil component spring at coil component spring; Bolt is housed on the pressure ring, and the head of bolt leans on fuel tank cap, also is provided with wire-netting aperture on the insulator cylindrical, and the conducting rod lower end is connected with copper conductor.
Wherein, the projection of described insulator protrudes the height of insulator body for equaling 1 centimetre for a short time.
Wherein, described insulator is gamp and the spaced structure of umbellule.
The beneficial effects of the utility model are: described porcelain shell for transformer, its main charged position is all in fuel tank and be not exposed in the air, can not get rusty, can not accidents happened because weather conditions or artificial origin are impaired, compact conformation, overall dimension be little, the bushing shell for transformer that creepage distance is big.
Description of drawings
Shown in Figure 1 is the structural representation of porcelain shell for transformer of the present utility model.
Label declaration:
Wire-netting aperture 1 insulator 2 copper conductors 3 evagination steps 4 sealing rings 5 fuel tank cap 6
Embodiment
By describing technology contents of the present utility model, structural feature in detail, realized purpose and effect, give explanation below in conjunction with execution mode and conjunction with figs. are detailed.
See also Fig. 1, present embodiment provides a kind of porcelain shell for transformer, and the bottom periphery wall of described insulator 2 is provided with evagination step 4 and groove 9; Its fuel tank was placed between outer lug boss rank 4 and the groove 9 when insulator 2 was packed into the fuel tank from the fuel tank hole, and sealing ring 5 is installed between evagination step 4 and the fuel tank cap; Be embedded with coil component spring 8 in the described groove 9, be peripherally equipped with the pressure ring 7 that to push down coil component spring 8 at coil component spring 8; Bolt 10 is housed on the pressure ring 7, and the head of bolt 10 leans on fuel tank cap 6, also is provided with wire-netting aperture 1 on the porcelain bushing cylindrical, and the conducting rod lower end is connected with copper conductor 3.
Special feature of the present utility model is that the projection of described insulator protrudes the height of insulator body for equaling 1 centimetre for a short time.Concrete is 6 millimeter, and its projection surface is provided with above together convex tendon.
In the execution mode of the present utility model, described insulator is gamp and the spaced structure of umbellule.Adopted such structure, make such 220KV porcelain shell for transformer bushing have creepage distance and equal 8593mm greatly, bending resistance destroys load and equals 32KN.M greatly, and interior hydraulic pressure destroys the specification requirement that load equals 4.2MPa greatly, can satisfy the needs of the such voltage levels of 220KV.The structure of such porcelain shell for transformer, have simple in structure, the convenient installation, stability is strong, the characteristics that insulation effect is good.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (3)
1. porcelain shell for transformer, it is characterized in that: the bottom periphery wall of described insulator is provided with evagination step and groove;
Its fuel tank was placed between outer lug boss rank and the groove when insulator was packed into the fuel tank from the fuel tank hole, between evagination step and the fuel tank cap sealing ring was installed;
Be embedded with coil component spring in the described groove, be peripherally equipped with the pressure ring that to push down coil component spring at coil component spring; Bolt is housed on the pressure ring, and the head of bolt leans on fuel tank cap, also is provided with wire-netting aperture on the insulator cylindrical, and the conducting rod lower end is connected with copper conductor.
2. porcelain shell for transformer according to claim 1 is characterized in that: the projection of described insulator protrudes the height of insulator body for equaling 1 centimetre for a short time.
3. porcelain shell for transformer according to claim 1, it is characterized in that: described insulator is gamp and the spaced structure of umbellule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220695787 CN203055635U (en) | 2012-12-17 | 2012-12-17 | Transformer porcelain cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220695787 CN203055635U (en) | 2012-12-17 | 2012-12-17 | Transformer porcelain cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203055635U true CN203055635U (en) | 2013-07-10 |
Family
ID=48738563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220695787 Expired - Fee Related CN203055635U (en) | 2012-12-17 | 2012-12-17 | Transformer porcelain cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203055635U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601449A (en) * | 2016-12-08 | 2017-04-26 | 江苏扬动电气有限公司 | Built-in type high-voltage sleeve of amorphous transformer |
| CN112071596A (en) * | 2020-08-04 | 2020-12-11 | 国家电网有限公司 | Power transformer with running state alarm |
-
2012
- 2012-12-17 CN CN 201220695787 patent/CN203055635U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601449A (en) * | 2016-12-08 | 2017-04-26 | 江苏扬动电气有限公司 | Built-in type high-voltage sleeve of amorphous transformer |
| CN112071596A (en) * | 2020-08-04 | 2020-12-11 | 国家电网有限公司 | Power transformer with running state alarm |
| CN112071596B (en) * | 2020-08-04 | 2024-04-19 | 国家电网有限公司 | Power transformer with running state alarm |
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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: 20130710 Termination date: 20141217 |
|
| EXPY | Termination of patent right or utility model |