CN103680898A - Fixed three-phase gas-insulated transformer - Google Patents
Fixed three-phase gas-insulated transformer Download PDFInfo
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- CN103680898A CN103680898A CN201210358463.6A CN201210358463A CN103680898A CN 103680898 A CN103680898 A CN 103680898A CN 201210358463 A CN201210358463 A CN 201210358463A CN 103680898 A CN103680898 A CN 103680898A
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- gas
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Abstract
The invention discloses a fixed three-phase gas-insulated transformer. Three voltage transformers are fixed to a shell and connected with one another in parallel. Each voltage transformer comprises an insulating layer, an insulating sealed tube, a silicone rubber umbrella skirt, an earth electrode, a secondary winding and a gas sealing ring, wherein the insulating layer, the insulating sealed tube and the gas sealing ring form an airtight cavity, the cavity is filled with insulating gas, and the two ends of the earth electrode extend to the position below the root of the cavity in a horn shape. By means of the fixed three-phase gas-insulated transformer, the problem that voltage distribution along the surface of a high-voltage current transformer is uneven can be effectively solved, the discharge voltage along the surface is increased substantially, the problem of strong electromagnetic field interference of a large current major loop is solved, an integral three-phase structure is adopted, equipment space is utilized reasonably and effectively, cost is reduced, and the structure is simple.
Description
Technical field
The present invention relates to a kind of instrument transformer, relate in particular to a kind of fixing three-phase, gas insulated instrument transformer.
Background technology
Voltage transformer is the equipment of measuring voltage, electric energy in electric power system or electric control system; as the major electrical equipment element in switch cubicle; in order to realize three-phase voltage, measure or electic protection; normally adopt a single-phase potential transformer to assemble; and then the parts such as high-tension fuse, insulating sleeve are installed successively; a winding of part installation of having simplified to a certain extent liter pass cabinet has the more number of turn, and inferior umber of turn is seldom supplied with the potential winding of instrument or relay.In single system, often need to support the use with three single-phase 220kV voltage transformers, whole equipment volume is excessive, and the insulator number needing is many, and once lead-in wire is long, and the dynamic and thermal effect of device is poor.
Summary of the invention
Object of the present invention provides a kind of simple in structure with regard to being in order to address the above problem, fixing three-phase, gas insulated instrument transformer with low cost.
The present invention is achieved through the following technical solutions above-mentioned purpose:
The present invention includes housing, on described housing, be fixed with three voltage transformers, described voltage transformer is parallel with one another, described in each, voltage transformer comprises insulating barrier, insulated enclosure pipe, silicon rubber full skirt, earth electrode, secondary winding and gas seal ring, described insulating barrier, described insulated enclosure pipe and described gas seal ring form an airtight cavity, in described cavity, be filled with insulating gas, the two ends of described earth electrode are the horn-like below that extends to the root of described cavity.
Particularly, described insulating gas is six sulfur chlorides.
Particularly, described housing side is provided with one or more louvre.
Particularly, the radius of described silicon rubber full skirt from top to bottom increases successively gradually.
Particularly, described secondary winding is provided with shielded coil.
Beneficial effect of the present invention is:
The present invention can efficiently solve high-tension current inductor along face voltage skewness problem, increased substantially creeping discharge voltage, solve the strong-electromagnetic field interference problem of large electric current major loop, adopted all-in-one-piece three-phase structure, utilize rationally and effectively the device space, saved cost, simple in structure.
Accompanying drawing explanation
Fig. 1 is partial sectional view of the present invention.
In figure: 1-iron core, 2-sleeve pipe, 3-insulating barrier, 4-cavity, 5-insulated enclosure pipe, 6-silicon rubber full skirt, 7-earth electrode, 8-secondary winding, 9-shielded coil, 10-housing, 11-louvre, 12-gas seal ring.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1, the present invention includes housing 10, on housing 10, be fixed with three voltage transformers, voltage transformer is parallel with one another, each voltage transformer comprises insulating barrier 3, insulated enclosure pipe 5, silicon rubber full skirt 6, earth electrode 7, secondary winding 8 and gas seal ring 12, insulating barrier 3, insulated enclosure pipe 5 and gas seal ring 12 form an airtight cavity 4, are filled with insulating gas in cavity, and the two ends of earth electrode 7 are the horn-like below that extends to the root of cavity 4.
As shown in Figure 1, insulating gas is six sulfur chlorides, and housing 10 sides are provided with one or more louvre 11, and the radius of silicon rubber full skirt 6 from top to bottom increases successively gradually, and secondary winding 8 is provided with shielded coil 9.
Claims (5)
1. fix three-phase, gas insulated instrument transformer for one kind, comprise housing, it is characterized in that: on described housing, be fixed with three voltage transformers, described voltage transformer is parallel with one another, described in each, voltage transformer comprises insulating barrier, insulated enclosure pipe, silicon rubber full skirt, earth electrode, secondary winding and gas seal ring, described insulating barrier, described insulated enclosure pipe and described gas seal ring form an airtight cavity, in described cavity, be filled with insulating gas, the two ends of described earth electrode are the horn-like below that extends to the root of described cavity.
2. a kind of fixing three-phase, gas insulated instrument transformer as claimed in claim 1, is characterized in that: described insulating gas is six sulfur chlorides.
3. a kind of fixing three-phase, gas insulated instrument transformer as claimed in claim 1, is characterized in that: described housing side is provided with one or more louvre.
4. a kind of fixing three-phase, gas insulated instrument transformer as claimed in claim 1, is characterized in that: the radius of described silicon rubber full skirt from top to bottom increases successively gradually.
5. a kind of fixing three-phase, gas insulated instrument transformer as claimed in claim 1, is characterized in that: described secondary winding is provided with shielded coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210358463.6A CN103680898A (en) | 2012-09-25 | 2012-09-25 | Fixed three-phase gas-insulated transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210358463.6A CN103680898A (en) | 2012-09-25 | 2012-09-25 | Fixed three-phase gas-insulated transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103680898A true CN103680898A (en) | 2014-03-26 |
Family
ID=50318165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210358463.6A Pending CN103680898A (en) | 2012-09-25 | 2012-09-25 | Fixed three-phase gas-insulated transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103680898A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2073615U (en) * | 1990-09-11 | 1991-03-20 | 沈阳互感器厂 | Duplex shielded mutual inducer |
| CN2497415Y (en) * | 2001-03-05 | 2002-06-26 | 方静 | Dry-type high-voltage current transformer |
| JP2008053409A (en) * | 2006-08-24 | 2008-03-06 | Toshiba Corp | Transformer for gas-insulated instrument |
| CN201449877U (en) * | 2009-07-14 | 2010-05-05 | 中山市泰峰电气有限公司 | Gas-insulated type voltage transformer |
| CN201518274U (en) * | 2009-08-03 | 2010-06-30 | 上海吴淞电气实业有限公司 | Three-phase integral transformer |
| CN101807459A (en) * | 2010-03-10 | 2010-08-18 | 中国电力科学研究院 | Ultrahigh-pressure gas insulated porcelain sleeve pipe |
| CN202930188U (en) * | 2012-09-25 | 2013-05-08 | 成都博课启睿科技有限公司 | Fixing three-phrase gas insulation mutual inductor |
-
2012
- 2012-09-25 CN CN201210358463.6A patent/CN103680898A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2073615U (en) * | 1990-09-11 | 1991-03-20 | 沈阳互感器厂 | Duplex shielded mutual inducer |
| CN2497415Y (en) * | 2001-03-05 | 2002-06-26 | 方静 | Dry-type high-voltage current transformer |
| JP2008053409A (en) * | 2006-08-24 | 2008-03-06 | Toshiba Corp | Transformer for gas-insulated instrument |
| CN201449877U (en) * | 2009-07-14 | 2010-05-05 | 中山市泰峰电气有限公司 | Gas-insulated type voltage transformer |
| CN201518274U (en) * | 2009-08-03 | 2010-06-30 | 上海吴淞电气实业有限公司 | Three-phase integral transformer |
| CN101807459A (en) * | 2010-03-10 | 2010-08-18 | 中国电力科学研究院 | Ultrahigh-pressure gas insulated porcelain sleeve pipe |
| CN202930188U (en) * | 2012-09-25 | 2013-05-08 | 成都博课启睿科技有限公司 | Fixing three-phrase gas insulation mutual inductor |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140326 |