CN103645366A - Independent pillar combined type optical mutual inductor - Google Patents
Independent pillar combined type optical mutual inductor Download PDFInfo
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- CN103645366A CN103645366A CN201310675769.9A CN201310675769A CN103645366A CN 103645366 A CN103645366 A CN 103645366A CN 201310675769 A CN201310675769 A CN 201310675769A CN 103645366 A CN103645366 A CN 103645366A
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- transformer
- current transformer
- voltage transformer
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Abstract
The invention discloses an independent pillar combined type optical mutual inductor and belongs to the technical field of an electric power primary equipment mutual inductor. In the invention, a current transformer sensitive ring and a voltage transformer sensitive unit share a fiber composite insulation sleeve and an electrical unit so that the provided mutual inductor has the advantages of flexible application mode, small size, light weight, less land occupation, low cost and the like; a current transformer fiber is embedded in the fiber composite insulation sleeve epoxy resin pipe and extends into the electrical unit in a spiral manner so that a fiber can be embedded at a normal temperature and a normal voltage, and can be placed outside a gas chamber without influence from an SF6 gas, thus the stress of the fiber is reduced, the creepage distance along the fiber is increased, and the insulation requirements are substantially satisfied.
Description
Technical field
The present invention relates to a kind of individual struts combined type optical transformer, belong to electric power primary equipment mutual inductor technical field.
Background technology
High-voltage electric mutual inductor is for electric system, to be provided for the necessaries of metering, control, failure wave-recording and relay protection.Along with voltage class of electric power system improve constantly, optical voltage transformer has shown the advantage than conventional voltage mutual inductor at aspects, such as the high-voltage signal of optical voltage transformer arrives secondary device by Optical Fiber Transmission, insulation is simplified greatly, frequency response is wide, dynamic range is large, without magnetic saturation, be lightly easy to install etc., therefore, the application of optical voltage transformer in electric system enjoys attention.
In the world, 1997, ABB electric power T & D company reported 115kV～550kV combined type optical voltage/current transformer.Canada Nxtphase has reported combined type optical voltage transformer/current transformer of 121kV～550kV, but its collecting part exists stray capacitance, and it utilizes Gauss integration to subdue, but its antijamming capability and less stable.Canada Nxtphase is purchased by French Alstom at present, now only has optical fiber current mutual inductor product.Domesticly from 1992, start successively to have numerous units such as the colleges and universities such as Tsing-Hua University, the Central China University of Science and Technology and 26 of the ministrys of electronics industry, Electric Power Research Institute, mutual inductance device factory, Shanghai to be engaged in research in this respect; have multiple optical voltage transformer prototype design out at present, but large absolutely number only limits to testing laboratory's stage.
Optical voltage transformer of the prior art exists that volume is many compared with large, Heavy Weight, occupation of land, high in cost of production problem; Combined type optical transformer can solve that volume is large, Heavy Weight, occupation of land is many, cost is high and the problem such as above-mentioned traditional electromagnetic transformer insulation.
Summary of the invention
The object of the invention is in order to overcome the deficiencies in the prior art, propose a kind of individual struts combined type optical transformer.
The object of the invention is to be achieved through the following technical solutions.
A kind of individual struts combined type optical transformer of the present invention, is filled with SF in this mutual inductor
6gas, comprises current transformer sensing ring support, primary connection terminal, optical fiber composite insulated sleeve pipe, voltage transformer (VT) tank body, current transformer sensing ring, conducting rod, current transformer optical cable, electric unit, voltage transformer (VT) optical cable, base of mutual inductor, voltage transformer (VT) sensing unit, high-field electrode and transition tank body; On transition tank body, there is air valve; On voltage transformer (VT) tank body, SF is installed
6rain glass and blow-out disc;
When voltage levels,, when voltage is greater than 220kV, this mutual inductor also comprises insulation basin, and insulation basin is fixed on voltage transformer (VT) tank body, and docks with transition tank body;
Described current transformer sensing ring is fixed in described current transformer sensing ring support;
Described primary connection terminal is fixed on described current transformer sensing ring support;
Described current transformer sensing ring support is fixed on described optical fiber composite insulated sleeve pipe upper end;
Described high-field electrode causes in voltage transformer (VT) tank body by conducting rod;
Described voltage transformer (VT) tank body is fixed on described optical fiber composite insulated sleeve pipe lower end by transition tank body;
Described voltage transformer (VT) sensing unit is fixed on described base of mutual inductor, and a described voltage transformer (VT) sensing unit part is positioned at voltage transformer (VT) tank body, and another part is positioned at the below of base of mutual inductor;
Described electric unit is fixed on the side of described voltage transformer (VT) tank body;
Described current transformer optical cable and described voltage transformer (VT) optical cable cause in described electric unit by corrugated tube;
Described current transformer sensing ring and described voltage transformer (VT) sensing unit share a described optical fiber composite insulated sleeve pipe;
Described current transformer sensing ring and described voltage transformer (VT) sensing unit can share a described electric unit also can respectively use separately a described electric unit separately;
Described current transformer optical cable is embedded in described optical fiber composite insulated sleeve ring epoxy resins pipe inside spin layout and draws in described electric unit;
Described current transformer optical cable is embedded in SF
6outside air chamber;
The material of described current transformer sensing ring is extraordinary polarization maintaining optical fibre; One time collecting part is passive type;
The material of described voltage transformer (VT) sensing unit is optical material, and one time collecting part is passive type;
On described primary connection terminal, have the hole of 9-Φ 18, therefore can be suitable for current all rated current application;
Described high-field electrode can be adjusted according to different electric pressures from the height between described voltage transformer (VT) sensing unit, when electric pressure is high, makes distance between the two become large;
Described optical fiber composite insulated sleeve pipe can be changed according to Practical Project electric pressure, and described optical fiber composite insulated sleeve pipe upper and lower side interface is constant;
Described current transformer optical cable belongs to extraordinary polarization maintaining optical fibre.
Beneficial effect of the present invention is as follows:
(1) in the present invention, current transformer sensing ring and voltage transformer (VT) sensing unit share an optical fiber composite insulated sleeve pipe and an electric unit, have that application mode is flexible, volume is little, lightweight, take up an area less, the advantage such as cost is low;
(2) in the present invention, current transformer optical fibre packages is embedded at optical fiber composite insulated sleeve ring epoxy resins pipe inside spin shape and leads to electric unit, can meet embedding under optical fiber normal temperature and pressure, is placed on outside air chamber, is not subject to SF
6gases affect, has reduced the stress to optical fiber, has strengthened the creepage distance along optical fiber, has greatly met insulating requirements;
(3) mesohigh electrode of the present invention and voltage transformer (VT) sensing unit are contactless modes, between without any skeleton, support, project organization is simple, has eliminated partial discharge phenomenon and proof voltage problem that attached stilt causes;
(4) between mesohigh electrode of the present invention and voltage transformer (VT), directly adopt the SF in voltage transformer (VT) tank body
6gas-insulated, without carrying out extra insulating Design, has reduced the potential safety hazard of bringing because of factors such as pressure, humidity, has simplified the complexity of system;
(5) mesohigh electrode of the present invention can be adjusted according to different electric pressures from the height between voltage transformer (VT) sensing unit, flexible design, simple, easily installation and maintenance;
(6) in the present invention, collecting part of current transformer and voltage transformer (VT) is respectively optical fiber and optical crystal, is passive type optical transformer.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the cut-open view of Fig. 1.
Embodiment
In order to make technical matters solved by the invention, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As depicted in figs. 1 and 2, a kind of individual struts combined type optical transformer, is filled with SF in this mutual inductor
6gas, comprises current transformer sensing ring support 1, primary connection terminal 2, optical fiber composite insulated sleeve pipe 3, voltage transformer (VT) tank body 5, current transformer sensing ring 8, conducting rod 9, current transformer optical cable 10, electric unit 11, voltage transformer (VT) optical cable 12, base of mutual inductor 13, voltage transformer (VT) sensing unit 14, high-field electrode 15, insulation basin 16 and transition tank body 17; On transition tank body 17, there is air valve 4; On voltage transformer (VT) tank body 5, SF is installed
6 rain glass 6 and blow-out disc 7;
Described current transformer sensing ring 8 is fixed in described current transformer sensing ring support 1;
Described primary connection terminal 2 is fixed on described current transformer sensing ring support 1;
Described current transformer sensing ring support 1 is fixed on described optical fiber composite insulated sleeve pipe 3 upper ends;
Described high-field electrode 15 causes in voltage transformer (VT) tank body 5 by conducting rod 9;
Described voltage transformer (VT) tank body 5 is fixed on described optical fiber composite insulated sleeve pipe 3 lower ends by transition tank body 17;
Described voltage transformer (VT) sensing unit 14 is fixed on described base of mutual inductor 13, and described voltage transformer (VT) sensing unit 14 parts are positioned at voltage transformer (VT) tank body 5, and another part is positioned at the below of base of mutual inductor 13;
Described electric unit 11 is fixed on the side of described voltage transformer (VT) tank body 5;
Described current transformer optical cable 10 and described voltage transformer (VT) optical cable 12 cause in described electric unit 11 by corrugated tube;
Described current transformer sensing ring 8 shares a described optical fiber composite insulated sleeve pipe 3 with described voltage transformer (VT) sensing unit 14;
Described current transformer sensing ring 8 shares a described electric unit 11 with described voltage transformer (VT) sensing unit 14;
Described current transformer optical cable 10 is embedded in described optical fiber composite insulated sleeve pipe 3 epoxy resin pipe inside spins layouts and draws in described electric unit 11;
Described current transformer optical cable 10 is embedded in SF
6outside air chamber;
The material of described current transformer sensing ring 8 is extraordinary polarization maintaining optical fibre; One time collecting part is passive type;
The material of described voltage transformer (VT) sensing unit 14 is optical material, and one time collecting part is passive type;
On described primary connection terminal 2, have the hole of 9-Φ 18, therefore can be suitable for current all rated current application;
Described high-field electrode 15 can be adjusted according to different electric pressures from the height between described voltage transformer (VT) sensing unit 14, when electric pressure is high, makes distance between the two become large;
Described optical fiber composite insulated sleeve pipe 3 can be changed according to Practical Project electric pressure, and described optical fiber composite insulated sleeve pipe 3 upper and lower side interfaces are constant;
Described current transformer optical cable 10 belongs to extraordinary polarization maintaining optical fibre.
More than by the detailed description of concrete and preferred embodiment the present invention; but those skilled in the art should be understood that; the present invention is not limited to the above embodiment; within the spirit and principles in the present invention all; any modification of doing, be equal to replacement etc., within protection scope of the present invention all should be included in.
Claims (8)
1. an individual struts combined type optical transformer, is filled with SF in this mutual inductor
6gas, is characterized in that: this mutual inductor comprises current transformer sensing ring support (1), primary connection terminal (2), optical fiber composite insulated sleeve pipe (3), voltage transformer (VT) tank body (5), current transformer sensing ring (8), conducting rod (9), current transformer optical cable (10), electric unit (11), voltage transformer (VT) optical cable (12), base of mutual inductor (13), voltage transformer (VT) sensing unit (14), high-field electrode (15) and transition tank body (17); On transition tank body (17), there is air valve (4); Voltage transformer (VT) tank body is provided with SF on (5)
6rain glass (6) and blow-out disc (7);
Described current transformer sensing ring (8) is fixed in described current transformer sensing ring support (1);
Described primary connection terminal (2) is fixed on described current transformer sensing ring support (1);
Described current transformer sensing ring support (1) is fixed on described optical fiber composite insulated sleeve pipe (3) upper end;
Described high-field electrode (15) causes in voltage transformer (VT) tank body (5) by conducting rod (9);
Described voltage transformer (VT) tank body (5) is fixed on described optical fiber composite insulated sleeve pipe (3) lower end by transition tank body (17);
It is upper that described voltage transformer (VT) sensing unit (14) is fixed on described base of mutual inductor (13), and described voltage transformer (VT) sensing unit (14) part is positioned at voltage transformer (VT) tank body (5), and another part is positioned at the below of base of mutual inductor (13);
Described electric unit (11) is fixed on the side of described voltage transformer (VT) tank body (5);
Described current transformer optical cable (10) and described voltage transformer (VT) optical cable (12) cause in described electric unit (11) by corrugated tube;
Described current transformer sensing ring (8) shares a described optical fiber composite insulated sleeve pipe (3) with described voltage transformer (VT) sensing unit (14);
Described current transformer sensing ring (8) shares a described electric unit (11) or uses separately separately a described electric unit (11) with described voltage transformer (VT) sensing unit (14);
Described current transformer optical cable (10) is embedded in described optical fiber composite insulated sleeve pipe (3) epoxy resin pipe inside spin layout and draws in described electric unit (11);
Described current transformer optical cable (10) is embedded in SF
6outside air chamber.
2. a kind of individual struts combined type optical transformer according to claim 1, is characterized in that: the material of described current transformer sensing ring (8) is extraordinary polarization maintaining optical fibre; One time collecting part is passive type.
3. a kind of individual struts combined type optical transformer according to claim 1, is characterized in that: the material of described voltage transformer (VT) sensing unit (14) is optical material, and one time collecting part is passive type.
4. a kind of individual struts combined type optical transformer according to claim 1, is characterized in that: the hole that has 9-Φ 18 on described primary connection terminal (2).
5. a kind of individual struts combined type optical transformer according to claim 1, is characterized in that: described high-field electrode (15) can be adjusted according to different electric pressures from the height between described voltage transformer (VT) sensing unit (14).
6. a kind of individual struts combined type optical transformer according to claim 1, is characterized in that: described optical fiber composite insulated sleeve pipe (3) is changed according to Practical Project electric pressure, and described optical fiber composite insulated sleeve pipe (3) upper and lower side interface is constant.
7. a kind of individual struts combined type optical transformer according to claim 1, is characterized in that: described current transformer optical cable (10) adopts extraordinary polarization maintaining optical fibre.
8. a kind of individual struts combined type optical transformer according to claim 1, it is characterized in that: when voltage levels, when voltage is greater than 220kV, this mutual inductor also comprises insulation basin (16), it is upper that insulation basin (16) is fixed on voltage transformer (VT) tank body (5), and dock with transition tank body (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310675769.9A CN103645366B (en) | 2013-12-11 | 2013-12-11 | A kind of individual struts built-up type optical transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310675769.9A CN103645366B (en) | 2013-12-11 | 2013-12-11 | A kind of individual struts built-up type optical transformer |
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| Publication Number | Publication Date |
|---|---|
| CN103645366A true CN103645366A (en) | 2014-03-19 |
| CN103645366B CN103645366B (en) | 2016-06-01 |
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| CN201310675769.9A Active CN103645366B (en) | 2013-12-11 | 2013-12-11 | A kind of individual struts built-up type optical transformer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841740A (en) * | 2017-01-24 | 2017-06-13 | 国网辽宁省电力有限公司盘锦供电公司 | A kind of anti-interference type all-fiber current transformator |
| CN107561337A (en) * | 2017-09-01 | 2018-01-09 | 全球能源互联网研究院 | The preparation method of optical fiber current mutual inductor and its prepared optical fiber current mutual inductor |
| CN110531141A (en) * | 2019-09-24 | 2019-12-03 | 国网重庆市电力公司电力科学研究院 | A kind of sub- voltage sensor system of Intelligent insulation |
| CN110850139A (en) * | 2018-08-21 | 2020-02-28 | 西安西电高压开关有限责任公司 | Voltage measuring device |
Citations (8)
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| CN2365747Y (en) * | 1998-08-27 | 2000-02-23 | 湖南电力电瓷电器厂 | 220 (KV) combined optical power mutual inductor |
| EP1624311A1 (en) * | 2004-08-06 | 2006-02-08 | Passoni & Villa Fabbrica Isolatori e Condensatori S.p.A. | Combined current and voltage measurement transformer of the capacitor bushing type |
| CN2775814Y (en) * | 2004-12-17 | 2006-04-26 | 华中科技大学 | Combined passive optical current/voltage mutual inductor |
| CN2836203Y (en) * | 2005-09-19 | 2006-11-08 | 王宇琼 | Combined transformer for metering |
| CN2886773Y (en) * | 2006-05-08 | 2007-04-04 | 何排枝 | Novel outdoor(indoor) dry type combination mutual inductor |
| CN102914677A (en) * | 2011-09-26 | 2013-02-06 | 北京航天时代光电科技有限公司 | Tank-type single-phase optical voltage transformer |
| CN103187162A (en) * | 2011-12-31 | 2013-07-03 | 上海Mwb互感器有限公司 | Combined transformer for power system |
| CN103208359A (en) * | 2013-03-21 | 2013-07-17 | 许继集团有限公司 | Electronic current and voltage combined transformer for support column type gas insulation |
-
2013
- 2013-12-11 CN CN201310675769.9A patent/CN103645366B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2365747Y (en) * | 1998-08-27 | 2000-02-23 | 湖南电力电瓷电器厂 | 220 (KV) combined optical power mutual inductor |
| EP1624311A1 (en) * | 2004-08-06 | 2006-02-08 | Passoni & Villa Fabbrica Isolatori e Condensatori S.p.A. | Combined current and voltage measurement transformer of the capacitor bushing type |
| CN2775814Y (en) * | 2004-12-17 | 2006-04-26 | 华中科技大学 | Combined passive optical current/voltage mutual inductor |
| CN2836203Y (en) * | 2005-09-19 | 2006-11-08 | 王宇琼 | Combined transformer for metering |
| CN2886773Y (en) * | 2006-05-08 | 2007-04-04 | 何排枝 | Novel outdoor(indoor) dry type combination mutual inductor |
| CN102914677A (en) * | 2011-09-26 | 2013-02-06 | 北京航天时代光电科技有限公司 | Tank-type single-phase optical voltage transformer |
| CN103187162A (en) * | 2011-12-31 | 2013-07-03 | 上海Mwb互感器有限公司 | Combined transformer for power system |
| CN103208359A (en) * | 2013-03-21 | 2013-07-17 | 许继集团有限公司 | Electronic current and voltage combined transformer for support column type gas insulation |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841740A (en) * | 2017-01-24 | 2017-06-13 | 国网辽宁省电力有限公司盘锦供电公司 | A kind of anti-interference type all-fiber current transformator |
| CN107561337A (en) * | 2017-09-01 | 2018-01-09 | 全球能源互联网研究院 | The preparation method of optical fiber current mutual inductor and its prepared optical fiber current mutual inductor |
| CN110850139A (en) * | 2018-08-21 | 2020-02-28 | 西安西电高压开关有限责任公司 | Voltage measuring device |
| CN110850139B (en) * | 2018-08-21 | 2022-02-01 | 西安西电高压开关有限责任公司 | Voltage measuring device |
| CN110531141A (en) * | 2019-09-24 | 2019-12-03 | 国网重庆市电力公司电力科学研究院 | A kind of sub- voltage sensor system of Intelligent insulation |
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| Publication number | Publication date |
|---|---|
| CN103645366B (en) | 2016-06-01 |
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