CN103943345B - explosion-proof oil-immersed current transformer - Google Patents
explosion-proof oil-immersed current transformer Download PDFInfo
- Publication number
- CN103943345B CN103943345B CN201410175032.5A CN201410175032A CN103943345B CN 103943345 B CN103943345 B CN 103943345B CN 201410175032 A CN201410175032 A CN 201410175032A CN 103943345 B CN103943345 B CN 103943345B
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- Prior art keywords
- explosion
- insulator
- oil
- resistant enclosure
- proof
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- 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.)
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Links
- 239000012212 insulator Substances 0.000 claims abstract description 51
- 238000004880 explosion Methods 0.000 claims abstract description 40
- 229910000906 Bronze Inorganic materials 0.000 claims abstract description 26
- 239000010974 bronze Substances 0.000 claims abstract description 26
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000002828 fuel tank Substances 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 239000000446 fuel Substances 0.000 claims abstract description 18
- 239000000428 dust Substances 0.000 claims abstract description 10
- 238000009413 insulation Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000012535 impurity Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a kind of explosion-proof oil-immersed current transformer, fuel tank (1), the first insulator (202) and the second insulator (302) are all arranged in explosion-resistant enclosure (4); The outer surface of fuel tank (1) is provided with fin (5), and the oil fuel tube (101) of fuel tank (1) and drain line (102) are drawn from explosion-resistant enclosure (4) respectively by the first bronze medal post and the second bronze medal post; Explosion-resistant enclosure (4) is provided with pressure relief valve (401), the inwall of explosion-resistant enclosure (4) is provided with pressure sensor (402), pressure sensor (402) is connected with pressure relief valve (401); One end that outlet row (201), secondary outgoing line row (301), the first bronze medal post and the second bronze medal post stretch out explosion-resistant enclosure (4) is provided with dust ring; Be provided with explosion-proof sealing device (6) in oil fuel tube (101) and drain line (102), the present invention can by the temperature that reduces pressure, reduces, isolate inflammable impurity and gas realizes explosion-proof, explosion-proof performance is good.
Description
Technical field
The present invention relates to a kind of current transformer, particularly relate to a kind of explosion-proof oil-immersed current transformer.
Background technology
Oil-immersed current transformer is compared with the instrument transformer of other insulating forms, conduction all with, easily repair, restorability is strong, structure is simple, is generally used to outdoor use, if but oil-immersed current transformer explode, substation equipment will be made to be subject to larger damage, to require high to explosion-proof performance.
In prior art, by improving the sealing of current transformer, with combustible dust, gas barrier in air, realize explosion-proof, but limited efficiency, poor in anti-explosion property.
Patent CN202513024 discloses a kind of oil-immersed current transformer, by insulator arranges oil conservator, oil conservator arranges expander, improves overall mechanical strength and sealing, improve reliability and the life-span of instrument transformer, the area that gradation for surface pollution is higher can be applicable to, but, filthy higher area, extraneous combustible dust, gas are more, more complicated, by improving the tightness of oil-immersed current transformer, be not enough to improve explosion-proof performance.
Summary of the invention
Instant invention overcomes the deficiencies in the prior art, provide a kind of coefficient of safety high, explosion-proof oil-immersed current transformer.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
Explosion-proof oil-immersed current transformer, comprise fuel tank, outlet row, the first insulator, secondary outgoing line row and second insulator, first insulator and the second insulator are arranged on fuel tank, an outlet row and secondary outgoing line row are separately positioned on the top of the first insulator and the second insulator, and fuel tank, the first insulator and the second insulator are all arranged in explosion-resistant enclosure.
The outer surface of fuel tank is provided with fin, and the oil fuel tube of fuel tank and drain line are drawn from explosion-resistant enclosure respectively by the first bronze medal post and the second bronze medal post.
Explosion-resistant enclosure is provided with pressure relief valve, the inwall of explosion-resistant enclosure is provided with pressure sensor, pressure sensor is connected with pressure relief valve, pressure in pressure sensor monitoring explosion-resistant enclosure, when pressure is excessive, pressure relief valve valve opening, release pressure, pressure in explosion-resistant enclosure is in safe range always, prevents the blast caused because pressure is excessive.
One end that outlet row, secondary outgoing line row, the first bronze medal post and the second bronze medal post stretch out explosion-resistant enclosure is provided with dust ring.
Be provided with explosion-proof sealing device in oil fuel tube and drain line, explosion-proof sealing device comprises sealing cap, sleeve and unidirectional valve, and sleeve is round tube shape, and unidirectional valve is arranged in sleeve, and unidirectional valve one end and sleeve are fixed, and sleeve is quality of rubber materials.Explosion-proof sealing device can air-isolation or dust, prevents oil-immersed current transformer in use, and oil contacts after-explosion by oil fuel tube and drain line volatilization with the combustibles in air night.Sleeve is quality of rubber materials, in its natural state, and good seal.
The junction of fuel tank and the first insulator and the second insulator is provided with insulation film; Improve insulation property, prevent because conduction sets off an explosion.
First insulator and the second insulator are the insulator that multiple large umbellule is cross-linked.
Be provided with sealing ring between oil fuel tube, drain line and the first bronze medal post, the second bronze medal post, prevent leakage of oil or oil impregnate.
Be provided with spring between the side of fuel tank and explosion-resistant enclosure, the two ends of spring are fixedly connected with explosion-resistant enclosure inner surface with tank side surface respectively, prevent immersion current transformer when transportation or earthquake, and produce collision and blast, coefficient of safety is high.
The end face of explosion-resistant enclosure is sealed by disc insulator, easy for installation, good insulation preformance.
Explosion-proof sealing device is connected with oil fuel tube and drain line by screw thread; Explosion-proof sealing device is facilitated to change.
Angle between first insulator and the second insulator is 20 ° ~ 40 °, the while of space-saving, prevents outlet row, the secondary outgoing line from arranging conducting.
The subjacent of explosion-resistant enclosure is provided with bearing.
Compared with prior art, beneficial effect of the present invention has: the outer surface of fuel tank of the present invention is provided with fin, can quick heat radiating, prevents from can setting off an explosion by burning-point owing to reaching temperature; Pressure in pressure sensor monitoring explosion-resistant enclosure, when pressure is excessive, pressure relief valve valve opening, release pressure, makes the pressure in explosion-resistant enclosure be in safe range always, prevents the blast caused because pressure is excessive; One end that outlet row, secondary outgoing line row, the first bronze medal post and the second bronze medal post stretch out explosion-resistant enclosure 4 is provided with dust ring, prevents from contacting with inflammable impurity; Explosion-proof sealing device can air-isolation or dust, prevents oil-immersed current transformer in use, and oil contacts after-explosion by oil fuel tube and drain line volatilization with the combustibles in air night.Sleeve is quality of rubber materials, in its natural state, and good seal.To sum up, the present invention can by the temperature that reduces pressure, reduces, isolate inflammable impurity and gas realizes explosion-proof, explosion-proof performance is good.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is explosion-proof sealing device structural representation.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, explosion-proof oil-immersed current transformer, comprise fuel tank 1, outlet row 201, first insulator 202, secondary outgoing line row 301 and the second insulator 302, first insulator 202 and the second insulator 302 are arranged on fuel tank 1, an outlet row 201 and secondary outgoing line row 301 are separately positioned on the top of the first insulator 202 and the second insulator 302, and fuel tank 1, first insulator 202 and the second insulator 302 are all arranged in explosion-resistant enclosure 4.
The outer surface of fuel tank 1 is provided with fin 5, the oil fuel tube 101 of fuel tank 1 and drain line 102 are drawn from explosion-resistant enclosure 4 respectively by the first bronze medal post and the second bronze medal post, the inner diameter of the first bronze medal post and the second bronze medal post and the diameter of oil fuel tube 101 and drain line 102 adapt, and do not show in figure.
Explosion-resistant enclosure 4 is provided with pressure relief valve 401, the inwall of explosion-resistant enclosure 4 is provided with pressure sensor 402, pressure sensor 402 is connected with pressure relief valve 401.
One end that outlet row 201, secondary outgoing line row's the 301, first bronze medal post and the second bronze medal post stretch out explosion-resistant enclosure 4 is provided with dust ring (dust ring does not show in the drawings).
Be provided with explosion-proof sealing device 6(explosion-proof sealing device 6 in oil fuel tube 101 and drain line 102 to be close to oil fuel tube 101 and drain line 102, do not show in figure), as shown in Figure 2, explosion-proof sealing device 6 comprises sealing cap 601, sleeve 602 and unidirectional valve 603, sleeve 602 is in round tube shape, unidirectional valve 603 is arranged in sleeve 602, and unidirectional valve 603 one end and sleeve 602 are fixed, and sealing cap 601 is connected by the top of screw shell 602.
The junction of fuel tank 1 and the first insulator 202 and the second insulator 302 is provided with insulation film.
First insulator 202 and the second insulator 302 are the insulator that multiple large umbellule is cross-linked.
Sealing ring is provided with between oil fuel tube 101, drain line 102 and the first bronze medal post, the second bronze medal post.
Spring 7 is provided with between the side of fuel tank 1 and explosion-resistant enclosure 4.
The end face of explosion-resistant enclosure 4 is sealed by disc insulator.
Sleeve 602 is quality of rubber materials.
Explosion-proof sealing device 6 is connected with drain line 102 with oil fuel tube 101 by screw thread.
Angle between first insulator 202 and the second insulator 302 is 20 ° ~ 40 °.
The subjacent of explosion-resistant enclosure 4 is provided with bearing 8.
Below be only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. explosion-proof oil-immersed current transformer, comprise fuel tank (1), outlet row (201), the first insulator (202), a secondary outgoing line arrange (301) and the second insulator (302), described first insulator (202) and the second insulator (302) are arranged on fuel tank (1), an outlet row (201) and secondary outgoing line row (301) are separately positioned on the top of the first insulator (202) and the second insulator (302), it is characterized in that, described fuel tank (1), the first insulator (202) and the second insulator (302) are all arranged in explosion-resistant enclosure (4);
The outer surface of described fuel tank (1) is provided with fin (5), and the oil fuel tube (101) of described fuel tank (1) and drain line (102) are drawn from explosion-resistant enclosure (4) respectively by the first bronze medal post and the second bronze medal post;
Described explosion-resistant enclosure (4) is provided with pressure relief valve (401), the inwall of described explosion-resistant enclosure (4) is provided with pressure sensor (402), described pressure sensor (402) is connected with pressure relief valve (401);
One end that a described outlet row (201), secondary outgoing line row (301), the first bronze medal post and the second bronze medal post stretch out explosion-resistant enclosure (4) is provided with dust ring;
Explosion-proof sealing device (6) is provided with in described oil fuel tube (101) and drain line (102), described explosion-proof sealing device (6) comprises sealing cap (601), sleeve (602) and unidirectional valve (603), described sleeve (602) is in round tube shape, described unidirectional valve (603) is arranged in sleeve (602), and unidirectional valve (603) one end and sleeve (602) are fixed;
Sealing ring is provided with between described oil fuel tube (101), drain line (102) and the first bronze medal post, the second bronze medal post;
Spring (7) is provided with between the side of described fuel tank (1) and explosion-resistant enclosure (4).
2. explosion-proof oil-immersed current transformer according to claim 1, described fuel tank (1) is provided with insulation film with the junction of the first insulator (202) and the second insulator (302).
3. explosion-proof oil-immersed current transformer according to claim 1, described first insulator (202) and the second insulator (302) are the insulator that multiple large umbellule is cross-linked.
4. explosion-proof oil-immersed current transformer according to claim 1, is characterized in that: the end face of explosion-resistant enclosure (4) is sealed by disc insulator.
5. explosion-proof oil-immersed current transformer according to claim 1, is characterized in that: described sleeve (602) is quality of rubber materials.
6. explosion-proof oil-immersed current transformer according to claim 1, is characterized in that: described explosion-proof sealing device (6) is connected with oil fuel tube (101) and drain line (102) by screw thread.
7. explosion-proof oil-immersed current transformer according to claim 1, is characterized in that: the angle between the first insulator (202) and the second insulator (302) is 20 ° ~ 40 °.
8. explosion-proof oil-immersed current transformer according to claim 1, is characterized in that: the subjacent of described explosion-resistant enclosure (4) is provided with bearing (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410175032.5A CN103943345B (en) | 2014-04-29 | 2014-04-29 | explosion-proof oil-immersed current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410175032.5A CN103943345B (en) | 2014-04-29 | 2014-04-29 | explosion-proof oil-immersed current transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103943345A CN103943345A (en) | 2014-07-23 |
| CN103943345B true CN103943345B (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410175032.5A Expired - Fee Related CN103943345B (en) | 2014-04-29 | 2014-04-29 | explosion-proof oil-immersed current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103943345B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2373878Y (en) * | 1999-03-03 | 2000-04-12 | 黄建西 | Mutual inductor or transformer |
| KR20040082107A (en) * | 2003-03-18 | 2004-09-24 | 한국전기연구원 | Outdoortype molded pole transformer |
| CN2743950Y (en) * | 2004-11-24 | 2005-11-30 | 江苏精科互感器有限公司 | Voltage transformer with resonance resisting capacity |
| CN102160133A (en) * | 2008-09-19 | 2011-08-17 | Abb技术有限公司 | Transformer assembly |
| CN102360866A (en) * | 2011-06-01 | 2012-02-22 | 山西亚乐士环保技术股份有限公司 | Anti-explosion exciter |
| CN203871169U (en) * | 2014-04-29 | 2014-10-08 | 昆山达功电子有限公司 | Anti-explosion oil immersion type current transformer |
-
2014
- 2014-04-29 CN CN201410175032.5A patent/CN103943345B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2373878Y (en) * | 1999-03-03 | 2000-04-12 | 黄建西 | Mutual inductor or transformer |
| KR20040082107A (en) * | 2003-03-18 | 2004-09-24 | 한국전기연구원 | Outdoortype molded pole transformer |
| CN2743950Y (en) * | 2004-11-24 | 2005-11-30 | 江苏精科互感器有限公司 | Voltage transformer with resonance resisting capacity |
| CN102160133A (en) * | 2008-09-19 | 2011-08-17 | Abb技术有限公司 | Transformer assembly |
| CN102360866A (en) * | 2011-06-01 | 2012-02-22 | 山西亚乐士环保技术股份有限公司 | Anti-explosion exciter |
| CN203871169U (en) * | 2014-04-29 | 2014-10-08 | 昆山达功电子有限公司 | Anti-explosion oil immersion type current transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103943345A (en) | 2014-07-23 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zheng Jianxiong Inventor before: Ren Yuwen |
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| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161028 Address after: Suzhou City, Jiangsu province 215316 high tech Zone in Kunshan City, North Okitomo Road No. 10 Patentee after: KUNSHAN YIBANGTAI AUTO PARTS MANUFACTURING CO., LTD. Address before: 215325 Kunshan, Suzhou, Zhouzhuang Town Industrial Park Ming Road Patentee before: Kunshan Dagong Electronics Co., Ltd. |
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| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ren Yuwen Inventor before: Zheng Jianxiong |
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Effective date of registration: 20170123 Address after: 215325 Kunshan, Suzhou, Zhouzhuang Town Industrial Park Ming Road Patentee after: Kunshan Dagong Electronics Co., Ltd. Address before: Suzhou City, Jiangsu province 215316 high tech Zone in Kunshan City, North Okitomo Road No. 10 Patentee before: KUNSHAN YIBANGTAI AUTO PARTS MANUFACTURING CO., LTD. |
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Effective date of registration: 20180320 Address after: 518000 Guangdong Province, Shenzhen New District of Longhua City, Dalang street, Longsheng Gold Dragon Road community e-commerce incubator exhibition Tao Commercial Plaza E block 706 Patentee after: Shenzhen step Technology Transfer Center Co., Ltd. Address before: 215325 Kunshan, Suzhou, Zhouzhuang Town Industrial Park Ming Road Patentee before: Kunshan Dagong Electronics Co., Ltd. |
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Effective date of registration: 20180510 Address after: 300131 Memorial Road, Hongqiao District, Tianjin City, No. 146 Patentee after: Tianjin Baite Electric Co. Ltd. Address before: 518000 Guangdong Shenzhen Longhua New District big wave street Longsheng community Tenglong road gold rush e-commerce incubation base exhibition hall E commercial block 706 Patentee before: Shenzhen step Technology Transfer Center Co., Ltd. |
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Effective date of registration: 20190716 Address after: 301600 No. 18 Ximin Road, Duliu Town, Jinghai District, Tianjin Patentee after: Tianjin Zhongshun Machinery Manufacturing Co. Ltd. Address before: 300131 No. 146 Memorial Hall Road, Hongqiao District, Tianjin Patentee before: Tianjin Baite Electric Co. Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20200429 |
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| CF01 | Termination of patent right due to non-payment of annual fee |