CN201877280U - Full-dry type capacitive high-voltage current transformer - Google Patents
Full-dry type capacitive high-voltage current transformer Download PDFInfo
- Publication number
- CN201877280U CN201877280U CN2010206487988U CN201020648798U CN201877280U CN 201877280 U CN201877280 U CN 201877280U CN 2010206487988 U CN2010206487988 U CN 2010206487988U CN 201020648798 U CN201020648798 U CN 201020648798U CN 201877280 U CN201877280 U CN 201877280U
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- CN
- China
- Prior art keywords
- type
- winding
- dry type
- primary winding
- arms
- 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
Links
- 238000004804 winding Methods 0.000 claims abstract description 21
- 239000004020 conductor Substances 0.000 claims abstract description 15
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 7
- 239000003990 capacitor Substances 0.000 claims description 11
- 239000000725 suspension Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 6
- 229920002545 silicone oil Polymers 0.000 abstract description 6
- 239000000945 filler Substances 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 239000004850 liquid epoxy resins (LERs) Substances 0.000 abstract 2
- 238000009413 insulation Methods 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 229920000647 polyepoxide Polymers 0.000 description 5
- 239000004593 Epoxy Substances 0.000 description 4
- 125000003700 epoxy group Chemical group 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 3
- 239000004848 polyfunctional curative Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
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- Insulating Of Coils (AREA)
Abstract
The utility model discloses a full-dry type capacitive high-voltage current transformer which comprises a U-shaped conductor fixed on a carrier, wherein the U-shaped conductor is wrapped by a film tape, a plurality of capacitive screens sequentially wrap the film tape from the top down and are formed into an inverted conical structure, the U-shaped conductor and the capacitive screens are formed into a U-shaped primary winding, a plurality of core coils are respectively sleeved from the top down on both arms of the U-shaped primary winding, and silicon rubber umbrella skirts are sleeved on both arms of the U-shaped primary winding. In the utility model, modified liquid epoxy resin with a curing agent formula is adopted to be a filler, the modified liquid epoxy resin with the curing agent formula is cured after undergoing subsequent vacuum heating treatment, consequently, the leakage of liquid silicone oil is prevented, the problem of the existence of gaps and air gaps between the layers of the primary winding is solved, the partial discharge of the product is reduced, the insulating property of the product is enhanced, and moreover, the product can have high mechanical strength.
Description
Technical field
The utility model relates to the current transformer field, is specifically related to a kind of modification liquid-state epoxy resin solidifying full dry type current transformer.
Background technology
The combined insulated dry current transformer that adopts oriented film to make main insulation is a kind of new transformer of just putting on market in recent years, oil, no gas, no porcelain, volume are little, in light weight, easy for installation because it does not have, anti-explosion fire etc., has obtained rapid popularization after putting on market.A present winding main insulation is that the dry type capacitive current transformer of insulating tape wrapping generally adopts the wrapping of stretched polytetrafluoroethylene film band, the material that is used to get rid of the little air gap of interlayer is the silicone oil that does not solidify, discovery in service is through after a while use, silicone oil can permeate gradually separates out, cause each insulating tape interlayer oil starvation and have air gap, thereby cause product main insulation decreased performance, product office high-volume increases.
The utility model content
The purpose of this utility model provides the capacitor type structure current transformer of a kind of dry type wrapping insulation, and the silicone oil infiltration that can effectively avoid product to move filling between a back winding layers is analysed existing, thereby makes product main insulation keep high-quality insulation property.
The technical solution of the utility model is as follows:
A kind of capacitor type dry type high-tension current inductor, include the U type conductor that is fixed on the carriage, it is characterized in that: the outer wrapping of described U type conductor has the film band, there are a plurality of capacitance plates to wrap up from top to bottom successively outside described film band and form inverted cone-shaped structure, described U type conductor and a plurality of capacitance plate are formed a winding of U type, be respectively installed with a plurality of iron-core coils from top to bottom on two arms of a winding of described U type, described a plurality of iron-core coils are formed secondary coil; Be with casing outside the bottom of a winding of described U type, two arms of a winding of described U type are with the silicon rubber full skirt outward.
Described capacitor type dry type high-tension current inductor is characterized in that: be provided with heat-shrink tube between described U type conductor and the carriage.
Described capacitor type dry type high-tension current inductor is characterized in that: be respectively equipped with insulating washer between the adjacent iron-core coil.
Described capacitor type dry type high-tension current inductor, it is characterized in that: the end of described silicon rubber full skirt is separately installed with terminal block and mount pad, and the bottom of described casing is separately installed with suspension hook and earth stud.
The beneficial effects of the utility model:
The utility model adopts the liquid epoxies of the modification of band hardener formula to make filler, through follow-up vacuum heating treatment, the liquid epoxies of the modification of band hardener formula is solidified, thereby the seepage that does not have liquid silicone oil, solved the situation that has space, air gap between winding layers, reduce the partial discharge of product, improved the insulation property of product, and made product have very high mechanical strength.
Description of drawings
Fig. 1 is an internal structure schematic diagram of the present utility model.
Fig. 2 is an external structure schematic diagram of the present utility model.
Embodiment
Referring to Fig. 1,2, a kind of capacitor type dry type high-tension current inductor, include the U type conductor that is fixed on the carriage 6, the outer wrapping of U type conductor has the stretched polytetrafluoroethylene film band through the liquid epoxies dipping of modification, there are a plurality of capacitance plates to wrap up from top to bottom successively outside the film band and form inverted cone-shaped structure, U type conductor and a plurality of capacitance plate are formed a winding 1 of U type, be respectively installed with a plurality of iron-core coils from top to bottom on two arms of a winding 1 of U type, a plurality of iron-core coils are formed secondary coil 3; Be with casing 7 outside the bottom of a winding 1 of U type, two arms of a winding 1 of U type are with silicon rubber full skirt 8 outward.
Be provided with heat- shrink tube 4,5 between U type conductor and the carriage; Be respectively equipped with insulating washer 2 between the adjacent iron-core coil; The end of silicon rubber full skirt 8 is separately installed with terminal block 9 and mount pad 10, and the bottom of casing 7 is separately installed with suspension hook 11 and earth stud 12.
When a winding wrapping, the interlayer filler is for adding the liquid epoxies of the modification of hardener formula, through follow-up vacuum drying treatment, between a winding layers, form the cured layer that does not have air gap, thoroughly solved owing to the air gap that forms is separated out in the infiltration of silicone oil.
Claims (4)
1. capacitor type dry type high-tension current inductor, include the U type conductor that is fixed on the carriage, it is characterized in that: the outer wrapping of described U type conductor has the film band, there are a plurality of capacitance plates to wrap up from top to bottom successively outside described film band and form inverted cone-shaped structure, described U type conductor and a plurality of capacitance plate are formed a winding of U type, be respectively installed with a plurality of iron-core coils from top to bottom on two arms of a winding of described U type, described a plurality of iron-core coils are formed secondary coil; Be with casing outside the bottom of a winding of described U type, two arms of a winding of described U type are with the silicon rubber full skirt outward.
2. capacitor type dry type high-tension current inductor according to claim 1 is characterized in that: be provided with heat-shrink tube between described U type conductor and the carriage.
3. capacitor type dry type high-tension current inductor according to claim 1 is characterized in that: be respectively equipped with insulating washer between the adjacent iron-core coil.
4. capacitor type dry type high-tension current inductor according to claim 1, it is characterized in that: the end of described silicon rubber full skirt is separately installed with terminal block and mount pad, and the bottom of described casing is separately installed with suspension hook and earth stud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206487988U CN201877280U (en) | 2010-12-09 | 2010-12-09 | Full-dry type capacitive high-voltage current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206487988U CN201877280U (en) | 2010-12-09 | 2010-12-09 | Full-dry type capacitive high-voltage current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201877280U true CN201877280U (en) | 2011-06-22 |
Family
ID=44165193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206487988U Expired - Fee Related CN201877280U (en) | 2010-12-09 | 2010-12-09 | Full-dry type capacitive high-voltage current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201877280U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289190A (en) * | 2015-10-23 | 2019-09-27 | 北京瑞恒新源投资有限公司 | Multifunctional capacitor molded cannula with vacuum interrupter |
| CN116344203A (en) * | 2023-03-30 | 2023-06-27 | 山东泰开互感器有限公司 | Wrapping process for body of oil-immersed inverted current transformer |
-
2010
- 2010-12-09 CN CN2010206487988U patent/CN201877280U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289190A (en) * | 2015-10-23 | 2019-09-27 | 北京瑞恒新源投资有限公司 | Multifunctional capacitor molded cannula with vacuum interrupter |
| CN116344203A (en) * | 2023-03-30 | 2023-06-27 | 山东泰开互感器有限公司 | Wrapping process for body of oil-immersed inverted current transformer |
| CN116344203B (en) * | 2023-03-30 | 2023-09-05 | 山东泰开互感器有限公司 | Wrapping process for body of oil-immersed inverted current transformer |
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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: 20110622 Termination date: 20161209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |