CN202513029U - Inversion type heavy current multiple-winding oil-immersed current transformer - Google Patents
Inversion type heavy current multiple-winding oil-immersed current transformer Download PDFInfo
- Publication number
- CN202513029U CN202513029U CN2012200725356U CN201220072535U CN202513029U CN 202513029 U CN202513029 U CN 202513029U CN 2012200725356 U CN2012200725356 U CN 2012200725356U CN 201220072535 U CN201220072535 U CN 201220072535U CN 202513029 U CN202513029 U CN 202513029U
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- oil
- transformer
- oil conservator
- inversion type
- immersed
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Abstract
The utility model discloses an inversion type heavy current multiple-winding oil-immersed current transformer. The inversion type heavy current multiple-winding oil-immersed current transformer comprises a base; a high pressure porcelain bushing is fixedly arranged on the base; an oil conservator is fixedly arranged above the high pressure porcelain bushing through a flange; a transformer coil is arranged in the oil conservator and then is correspondingly connected with each winding outgoing line; the oil conservator and the high pressure porcelain bushing are filled with transformer oil; the transformer coil is dipped in the transformer oil; a control valve is arranged on the lower surface of the base; a primary electric conductor is arranged on the left side wall and the right side wall of the oil conservator; conductive bars are arranged on the primary electric conductors; and an expander is arranged at the top of the oil conservator in a sealing manner. The inversion type heavy current multiple-winding oil-immersed current transformer can completely meet the required values of heavy current multiple-windings of the present electric power circuit; and simultaneously, the high pressure porcelain bushing can supply enough electric safety distance.
Description
Technical field
The utility model belongs to a kind of current transformer, particularly a kind of big electric current, multiple secondary winding, big electric current, many windings inversion type oil immersed current transformer.
Background technology
In recent years; Transformation along with city net and rural power grids in China's power industry; And the automaticity of electric power system improves constantly, and current transformer has been widely used among relaying protection, system monitoring and the power system analysis as a kind of important electric equipment of electric power system.
In order to satisfy the needs of devices such as measuring instrument, relaying protection, breaker failure judgement and failure wave-recording, in loops such as generator, transformer, outlet, bus section breaker, bus, bypass breaker, all establish current transformer with 2～8 secondary windings.Have increasing secondary winding owing to current transformer is required; Along with the increase of power load, increasing big electric current, many winding mutual inductances device are applied in each circuit simultaneously, and this has just proposed each many requirement to the just vertical oil immersed current transformer of routine; But conventional upright oil immersed current transformer receives effect on structure; The electric current maximum can only reach 3150A, and secondary winding can only have four at most, and this product obtains research and development just in the case.This product maximum current can reach 10000A, can be with 6～8 secondary winding.Mainly be made up of stainless steel metal expander, oil conservator, high voltage porcelain bushing, base on the mechanical structure, oil conservator adopts the fine aluminium casting, can effectively reduce the eddy current loss that under big electric current service conditions, is produced; Primary Conductor adopts hollow copper tubing or aluminum pipe, avoids kelvin effect; Adopt inverted structure simultaneously, the product insulation is wrapped up on secondary winding entirely, is convenient to the heat radiation of product primary conductive body.
The utility model content
The purpose of the utility model provides a kind of current transformer, has a plurality of secondary winding, can satisfy big electric current, many windings required value of present power circuit fully, and high voltage porcelain bushing can provide enough electrical safety distances simultaneously.
The utility model technical solution problem provides following scheme:
A kind of big electric current, many windings inversion type oil immersed current transformer comprise base, it is characterized in that: be installed with high voltage porcelain bushing on the said base; Said high voltage porcelain bushing top is installed with oil conservator through flange, in the said oil conservator mutual inductor coil is installed, and correspondence connects each winding lead-out wire again; Fill transformer oil in said oil conservator and the high voltage porcelain bushing; Said mutual inductor coil is immersed in the transformer oil, and the lower surface of said base is provided with control valve, is installed with the primary conductive body on the left and right sides sidewall of said oil conservator; Have busbar on the said primary conductive body, the top seal of said oil conservator is equipped with expander.
Said transformer oil is the 45# transformer oil.
Said primary conductive body adopts hollow copper tubing or aluminum pipe directly to pass mutual inductor coil, and seals through sealing ring between the oil conservator.
Said oil conservator adopts blunt aluminum casting.
It is copper pipe or aluminum pipe in 80 ~ 130mm scope that the utility model adopts diameter, reduces the kelvin effect that product produces through big electric current the time; Adopt blunt aluminum casting oil conservator, the eddy current loss that produces when reducing product through big electric current; Adopt the inversion type structure, can imitate and distribute the heat that produces when big electric current moves.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Referring to accompanying drawing, a kind of big electric current, many windings inversion type oil immersed current transformer comprise base 1; Be installed with high voltage porcelain bushing 2 on the said base 1, said high voltage porcelain bushing 2 tops are installed with oil conservator 4 through flange 3, in the said oil conservator 4 mutual inductor coil 5 are installed; Correspondence connects each winding lead-out wire again, fills transformer oil in said oil conservator 4 and the high voltage porcelain bushing 2, and said mutual inductor coil 5 is immersed in the transformer oil; The lower surface of said base 1 is provided with control valve 6; Be installed with primary conductive body 7 on the left and right sides sidewall of said oil conservator 4, have busbar 8 on the said primary conductive body 7, the top seal of said oil conservator 4 is equipped with expander 9; Said transformer oil is the 45# transformer oil; Said primary conductive body 7 adopts hollow copper tubing or aluminum pipe directly to pass mutual inductor coil 5, and seals through sealing ring between the oil conservator 4, and said oil conservator 4 adopts blunt aluminum casting.
Claims (4)
1. a big electric current, many windings inversion type oil immersed current transformer comprise base, it is characterized in that: be installed with high voltage porcelain bushing on the said base; Said high voltage porcelain bushing top is installed with oil conservator through flange, in the said oil conservator mutual inductor coil is installed, and correspondence connects each winding lead-out wire again; Fill transformer oil in said oil conservator and the high voltage porcelain bushing; Said mutual inductor coil is immersed in the transformer oil, and the lower surface of said base is provided with control valve, is installed with the primary conductive body on the left and right sides sidewall of said oil conservator; Have busbar on the said primary conductive body, the top seal of said oil conservator is equipped with expander.
2. according to the said big electric current of claim 1, many windings inversion type oil immersed current transformer, it is characterized in that: said transformer oil is the 45# transformer oil.
3. according to the said big electric current of claim 1, many windings inversion type oil immersed current transformer, it is characterized in that: said primary conductive body adopts hollow copper tubing or aluminum pipe directly to pass mutual inductor coil, and seals through sealing ring between the oil conservator.
4. according to the said big electric current of claim 1, many windings inversion type oil immersed current transformer, it is characterized in that: said oil conservator adopts blunt aluminum casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200725356U CN202513029U (en) | 2012-02-29 | 2012-02-29 | Inversion type heavy current multiple-winding oil-immersed current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200725356U CN202513029U (en) | 2012-02-29 | 2012-02-29 | Inversion type heavy current multiple-winding oil-immersed current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202513029U true CN202513029U (en) | 2012-10-31 |
Family
ID=47065493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200725356U Expired - Fee Related CN202513029U (en) | 2012-02-29 | 2012-02-29 | Inversion type heavy current multiple-winding oil-immersed current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202513029U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104157407A (en) * | 2014-08-27 | 2014-11-19 | 国家电网公司 | Device for handling water or gas with content exceeding standards in oil of oil-immersed transformer |
| CN105244158A (en) * | 2015-10-21 | 2016-01-13 | 成都迅德科技有限公司 | Current transformer |
| CN111091953A (en) * | 2019-12-24 | 2020-05-01 | 保定天威保变电气股份有限公司 | Method for selecting material of shell of oil conservator for preventing overheating |
-
2012
- 2012-02-29 CN CN2012200725356U patent/CN202513029U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104157407A (en) * | 2014-08-27 | 2014-11-19 | 国家电网公司 | Device for handling water or gas with content exceeding standards in oil of oil-immersed transformer |
| CN105244158A (en) * | 2015-10-21 | 2016-01-13 | 成都迅德科技有限公司 | Current transformer |
| CN111091953A (en) * | 2019-12-24 | 2020-05-01 | 保定天威保变电气股份有限公司 | Method for selecting material of shell of oil conservator for preventing overheating |
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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: 20121031 Termination date: 20180229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |