CN202003812U - High-resistance on-load voltage-regulating isolation transformer - Google Patents
High-resistance on-load voltage-regulating isolation transformer Download PDFInfo
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- CN202003812U CN202003812U CN2011201129651U CN201120112965U CN202003812U CN 202003812 U CN202003812 U CN 202003812U CN 2011201129651 U CN2011201129651 U CN 2011201129651U CN 201120112965 U CN201120112965 U CN 201120112965U CN 202003812 U CN202003812 U CN 202003812U
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- coil
- load voltage
- isolation transformer
- yoke
- end portion
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Abstract
The utility model relates to a high-resistance on-load voltage-regulating isolation transformer, belongs to the technical field of transformer manufacture, and comprises a coil (2), a yoke (3), main insulation arranged between the coil and the yoke. The main insulation is a paper tube (1) structure, the paper tube is higher than the end portion of the coil, and accordingly the creepage distance of the end portion of the coil to the yoke is enlarged. The high-resistance on-load voltage-regulating isolation transformer has the advantages that a previous electrical structure is improved, the essence of a thin-paper-tube small-oil-gap structure is introduced and fully absorbed, an electric field environment of the end portion is improved, insulation intensity of the end portion of the coil is enhanced, the structure of a yoke cushion block is improved, and a limiting insulation cushion block for limiting is added in order to guarantee the insulating distance of the outflow end of the coil to the ground. A short circuit resistance value of the on-load voltage-regulating isolation transformer is increased during calculation, short circuit current is reduced and anti-short-circuit capability of the on-load voltage-regulating isolation transformer is improved.
Description
Technical field:
The utility model relates to a kind of high impedance on-load voltage regulation isolating transformer, belongs to technical field of transformer manufacturing.
Background technology:
At present, in supply line's actual motion, the on-load voltage regulation isolating transformer causes damage to the user because impedance is low, the end winding dielectric strength is low, and the accident of on-load voltage regulation isolating transformer scaling loss often takes place.
The utility model content:
The utility model purpose provides a kind of high impedance on-load voltage regulation isolating transformer, improves the short-circuit impedance value of on-load voltage regulation isolating transformer, strengthens coil overhang insulation intensity, solves the problems referred to above that exist in the background technology.
The technical solution of the utility model is:
A kind of high impedance on-load voltage regulation isolating transformer comprises coil, iron yoke, main insulation, and main insulation is arranged between coil, the iron yoke, and main insulation is the paper web structure, and paper web is higher than end winding, increases the creepage distance of end winding to the iron yoke.
In electromagnetism computational process, improve the resistance value of on-load voltage regulation isolating transformer, the short-circuit impedance value is brought up to 6%-8% or higher, reduce the short circuit current of transformer.
Main insulation is thin paper tube small oil gap structure, is characterized in that oil clearance is little, paper web thin, improves electric strength.
The utility model also is provided with spacing cross-over block, is arranged on by coil and the iron yoke, guarantees the insulation distance of winding protruding head place to transformer core clamping, effectively improves the dielectric strength of transformer.
Good effect of the present utility model: on original electrical structure, improve, fully introduce and absorb " thin paper tube small oil gap structure " marrow, improve the electric field environment of end, strengthen coil overhang insulation intensity, change iron yoke cushion block structure, increase the spacing cross-over block of position-limiting action, guaranteed winding protruding head insulation distance over the ground; In computational process, increase the short-circuit impedance value of on-load voltage regulation isolating transformer, reduce short circuit current, improve the anti-short circuit capability of on-load voltage regulation isolating transformer.
Description of drawings:
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the spacing cross-over block schematic diagram of the utility model embodiment;
Among the figure: paper web 1, coil 2, iron yoke 3, spacing cross-over block 4.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further detail by embodiment.
A kind of high impedance on-load voltage regulation isolating transformer comprises coil 2, iron yoke 3, main insulation, and main insulation is arranged between coil, the iron yoke, and main insulation is paper web 1 structure, and paper web is higher than end winding, increases the creepage distance of end winding to the iron yoke.In electromagnetism computational process, improve the resistance value of on-load voltage regulation isolating transformer, the short-circuit impedance value is brought up to 6%-8% or higher, reduce the short circuit current of transformer.Main insulation is thin paper tube small oil gap structure, is characterized in that oil clearance is little, paper web thin, improves electric strength.The utility model also is provided with spacing cross-over block 4, and it is other with iron yoke 3 to be arranged on coil 2, guarantees the insulation distance of winding protruding head place to transformer core clamping, effectively improves the dielectric strength of transformer.
Claims (2)
1. a high impedance on-load voltage regulation isolating transformer is characterized in that comprising coil (2), iron yoke (3), main insulation, and main insulation is arranged between coil, the iron yoke, and main insulation is paper web (1) structure, and paper web is higher than end winding.
2. the high impedance on-load voltage regulation isolating transformer according to claim 1 is characterized in that also being provided with spacing cross-over block (4), and it is other with iron yoke (3) to be arranged on coil (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201129651U CN202003812U (en) | 2010-12-22 | 2011-04-18 | High-resistance on-load voltage-regulating isolation transformer |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020674317.0 | 2010-12-22 | ||
| CN201020674317 | 2010-12-22 | ||
| CN2011201129651U CN202003812U (en) | 2010-12-22 | 2011-04-18 | High-resistance on-load voltage-regulating isolation transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202003812U true CN202003812U (en) | 2011-10-05 |
Family
ID=44706542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201129651U Expired - Fee Related CN202003812U (en) | 2010-12-22 | 2011-04-18 | High-resistance on-load voltage-regulating isolation transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202003812U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293474A (en) * | 2013-06-09 | 2013-09-11 | 遵义市产品质量检验检测院 | Oil immersed on-load capacity regulating switch electrical endurance testing method in air |
-
2011
- 2011-04-18 CN CN2011201129651U patent/CN202003812U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293474A (en) * | 2013-06-09 | 2013-09-11 | 遵义市产品质量检验检测院 | Oil immersed on-load capacity regulating switch electrical endurance testing method in air |
| CN103293474B (en) * | 2013-06-09 | 2015-07-01 | 遵义市产品质量检验检测院 | Oil immersed on-load capacity regulating switch electrical endurance testing method in air |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131122 Address after: 071056 West Road, Hebei, Baoding, No. 2222, No. Patentee after: Baoding Tianwei Baobian Electric Co., Ltd. Address before: 071051, Hebei City, Baoding province ginkgo Road, No. 198 Jin Di garden complex Patentee before: Baoding Tianwei Group Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20140418 |