CN103532081A - Stress cone and capacitive composite insulating high-voltage cable terminal for overhead line - Google Patents
Stress cone and capacitive composite insulating high-voltage cable terminal for overhead line Download PDFInfo
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- CN103532081A CN103532081A CN201310446976.7A CN201310446976A CN103532081A CN 103532081 A CN103532081 A CN 103532081A CN 201310446976 A CN201310446976 A CN 201310446976A CN 103532081 A CN103532081 A CN 103532081A
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Abstract
The invention discloses a stress cone and capacitive composite insulating high-voltage cable terminal for an overhead line. The cable terminal comprises a shielding case, an outlet fitting, a conductive tube, a connecting piece, a cable, a stress cone structure, a capacitive insulator and a flange, wherein the top end of the shielding case protrudes to form a connecting part; the outlet fitting is connected with the connecting part; one end of the conductive tube is connected with the inner wall of the shielding case, and the other end of the conductive tube is fixedly connected with the connecting piece; the connecting piece is fixedly connected with a conductor of a cable; the stress cone structure is arranged outside the cable; the capacitor insulator covers the conductive tube and the stress cone structure; one end of the capacitive insulator is connected with the flange; the stress cone structure and the cable are fixed by the flange. According to the stress cone and capacitive composite insulating high-voltage cable terminal for the overhead line, the cable terminal is insulated and sealed through the stress cone structure and the capacitive insulator, so that the electric field distribution on a shielding cut-off part of the cable terminal is improved, and the problem of uniform distribution of an insulating electric field outside the cable terminal can be excellently solved through the capacitive insulator.
Description
Technical field
The present invention relates to stress cone type and condenser type compound insulation type hv cable termination that in a kind of electric power system, overhead wire is used.
Background technology
At present, in electric power system, the hv cable termination being connected with overhead wire, is mainly stress cone type, and its dry type product, for silicon rubber, integrates the integral prefabricated cable termination of stress cone, full skirt and insulation, and shortcoming is not for there is no rigidity.Its oily formula product for to fill insulating oil in insulating sleeve, and shortcoming is heavier, has leakage of oil hidden danger.The intrinsic shortcoming of the stress cone type hv cable termination being connected with overhead wire is: although improve the Electric Field Distribution of cable termination shielding cut-off part, do not have fine solution cable termination external insulation electric field to be uniformly distributed problem.
Summary of the invention
The object of the present invention is to provide and a kind ofly can solve stress cone type and the condenser type compound insulation type hv cable termination that overhead wire that cable termination external insulation electric field is uniformly distributed problem is used.
For achieving the above object, the invention provides stress cone type and condenser type compound insulation type hv cable termination that a kind of overhead wire is used, comprise radome, outlet gold utensil, contact tube, connector, cable, stress cone structure, capacitor type insulating body and flange.Radome top has protruded out connecting portion, and outlet gold utensil is connected with this connecting portion.Contact tube one end is connected with radome inwall, and the contact tube other end is fixedly connected with connector.Connector is fixedly connected with the conductor of cable.Cable is outside equipped with stress cone structure.Capacitor type insulating body coated with conductive pipe and stress cone structure, capacitor type insulating body one end and flange join, flange fixed stress wimble structure and cable.
Preferably, the capacitance plate of described capacitor type insulating body is progressively extending from inside to outside near described stress cone structure place, the capacitance plate of described condenser type insulator is progressively shortening from inside to outside near described outlet gold utensil side, the innermost layer capacitance plate of described capacitor type insulating body and described contact tube equipotential, the outermost layer capacitance plate of described capacitor type insulating body and described flange equipotential.
Preferably, the external sheath that is provided with of described capacitor type insulating, described sheath is outside equipped with full skirt.
Preferably, described connector is cylindric, and this connector one end is placed in described contact tube and forms a fixed connection with contact tube, and this connector other end offers holddown groove, and the conductor of described cable is contained in this holddown groove and forms a fixed connection with this connector.
Preferably, outside, described contact tube one end has protruded out tube connector, and this tube connector is fixedly connected with described radome inwall, and this is the integrally formed situation of contact tube and connecting cylinder.Certainly, tube connector can be also independent element, and described in contact tube, outside, contact tube one end is provided with tube connector, and this tube connector is fixedly connected with described radome inwall.
Preferably, described stress cone structure comprises stress cone, stress cone sleeve pipe and fixture, and described stress cone is coated on described cable, and described stress cone casing pipe sleeve is placed in outside described stress cone, and described fixture is fixed described stress cone sleeve pipe.
Preferably, described fixture comprises cone holder, holddown spring and spring bracket, and stress cone sleeve pipe is held in described cone holder, and described holddown spring one end is fixing with cone holder, and the described holddown spring other end and spring bracket are fixed, and described spring bracket is fixed on described flange.
Preferably, described cable lower end cover has tail pipe, and this tail pipe one end and described flange are fixed.
For achieving the above object, the invention provides stress cone type and condenser type compound insulation type hv cable termination that another kind of overhead wire is used, comprise radome, outlet gold utensil, conductive pole, contact tube, connector, cable, stress cone structure, capacitor type insulating body and flange.Conductive pole is through radome.Conductive pole one end is connected with outlet gold utensil, and the conductive pole other end is connected with contact tube.Contact tube one end is fixedly connected with connector, and connector is fixedly connected with the conductor of cable.Cable is outside equipped with stress cone structure.Capacitor type insulating body coated with conductive pipe and stress cone structure, capacitor type insulating body one end and flange join.Flange fixed stress wimble structure and cable.
The stress cone type that overhead wire of the present invention is used and condenser type compound insulation type hv cable termination carry out insulated enclosure by stress cone structure and capacitor type insulating body to cable termination, not only improve the Electric Field Distribution of cable termination shielding cut-off part, and by capacitor type insulating body, solved well cable termination external insulation electric field and be uniformly distributed problem.
Accompanying drawing explanation:
Fig. 1 is the stress cone type used of overhead wire of the present invention and the profile of condenser type compound insulation type hv cable termination embodiment 1;
Fig. 2 is that terminal shown in Fig. 1 is at the partial enlarged drawing at I place.
Embodiment
By describing technology contents of the present invention, structural feature in detail, being realized object and effect, below in conjunction with execution mode and coordinate accompanying drawing to be explained in detail.
Refer to Fig. 1 and Fig. 2, it has disclosed stress cone type that overhead wire of the present invention uses and the embodiment 1 of condenser type compound insulation type hv cable termination, comprises radome 1, outlet gold utensil 2, contact tube 3, connector 4, cable 5, stress cone structure 6, capacitor type insulating body 7 and flange 8.
Radome 1 is roughly rounded hood-like, and its top has upwards protruded out connecting portion 11, and outlet gold utensil 2 is connected with connecting portion 11.Radome 1 covers on contact tube 3.Contact tube 3 one end are connected with radome 1 inwall, and contact tube 3 other ends are fixedly connected with connector 4.Connector 4 is fixedly connected with the conductor 51 of cable 5.Cable 5 is outside equipped with stress cone structure 6.Capacitor type insulating body 7 coated with conductive pipes 3 and stress cone structure 6.Capacitor type insulating body 7 one end and flange 8 join, flange 8 fixed stress wimble structures 6 and cable 5.
Preferably, the capacitance plate of capacitor type insulating body 7 is progressively extending from inside to outside near stress cone structure 6 places, the capacitance plate of condenser type insulator 7 is progressively shortening from inside to outside near outlet gold utensil 2 sides, the innermost layer capacitance plate of capacitor type insulating body 7 and contact tube 3 equipotentials, the outermost layer capacitance plate of capacitor type insulating body 7 and flange 8 equipotentials.
Preferably, described capacitor type insulating body 7 is outer is provided with sheath 9, and described sheath 9 is outside equipped with full skirt 10.
Preferably, described contact tube 3 outsides, one end have protruded out tube connector 31, and this tube connector 31 is fixedly connected with radome 1 inwall, and this is the situation that contact tube 3 and tube connector are integrally formed.Certainly, tube connector 31 can be also independent element, and described contact tube 3 outsides, one end are provided with tube connector 31, and this tube connector 31 is fixedly connected with radome 1 inwall.
In the present embodiment, connector 4 is cylindric, and connector 4 one end are placed in contact tube 3 and form a fixed connection with contact tube 3.Connector 4 other ends offer holddown groove 41, and the conductor 51 of cable 5 is contained in holddown groove 41 and forms a fixed connection with connector 4.
In the present embodiment, stress cone structure 6 comprises stress cone 61, stress cone sleeve pipe 62 and fixture 63.Stress cone 61 is coated on cable 5, and stress cone sleeve pipe 62 is placed on outside stress cone 61, and fixture 63 is fixing by stress cone sleeve pipe 62.
Preferably, described fixture 63 comprises cone holder 631, holddown spring 632 and spring bracket 633.Stress cone sleeve pipe 62 is held in cone holder 631.Holddown spring 632 one end are fixing with cone holder 631, and holddown spring 632 other ends and spring bracket 633 are fixing.Spring bracket 633 is fixed on flange 8.
Preferably, cable 5 lower end covers have tail pipe 12, and these tail pipe 12 one end and flange 8 are fixing.
The present embodiment 2 is similar to Example 1, and its difference is: further comprise conductive pole, conductive pole is through radome, and conductive pole one end is connected with outlet gold utensil, and the conductive pole other end is connected with contact tube.This is the stress cone type used of overhead wire of the present invention and the conversion of condenser type compound insulation type hv cable termination embodiment 1.
In sum, the stress cone type that overhead wire of the present invention is used and condenser type compound insulation type hv cable termination carry out insulated enclosure by stress cone structure 6 and 7 pairs of cable terminations of capacitor type insulating body, not only improve the Electric Field Distribution of cable termination shielding cut-off part, and by capacitor type insulating body 7, solved well cable termination external insulation electric field and be uniformly distributed problem.
The present invention is not limited to above-mentioned embodiment, and those skilled in the art also can make multiple variation accordingly, but any and the present invention are equal to or similar variation all should be encompassed in the scope of the claims in the present invention.
Claims (10)
1. stress cone type and the condenser type compound insulation type hv cable termination that overhead wire is used, it is characterized in that: comprise radome, outlet gold utensil, contact tube, connector, cable, stress cone structure, capacitor type insulating body and flange, described radome top has protruded out connecting portion, described outlet gold utensil is connected with this connecting portion, described contact tube one end is connected with described radome inwall, the described contact tube other end is fixedly connected with connector, described connector is fixedly connected with the conductor of described cable, described cable is outside equipped with described stress cone structure, the coated described contact tube of described capacitor type insulating body and stress cone structure, capacitor type insulating body one end and flange join, the fixing described stress cone structure of described flange and cable.
2. the stress cone type that overhead wire according to claim 1 is used and condenser type compound insulation type hv cable termination, it is characterized in that: the capacitance plate of described capacitor type insulating body is progressively extending from inside to outside near described stress cone structure place, the capacitance plate of described condenser type insulator is progressively shortening from inside to outside near described outlet gold utensil side, the innermost layer capacitance plate of described capacitor type insulating body and described contact tube equipotential, the outermost layer capacitance plate of described capacitor type insulating body and described flange equipotential.
3. the stress cone type that overhead wire according to claim 1 and 2 is used and condenser type compound insulation type hv cable termination, is characterized in that: the external sheath that is provided with of described capacitor type insulating, described sheath is outside equipped with full skirt.
4. the stress cone type that overhead wire according to claim 3 is used and condenser type compound insulation type hv cable termination, it is characterized in that: described connector is cylindric, this connector one end is placed in described contact tube and forms a fixed connection with contact tube, this connector other end offers holddown groove, and the conductor of described cable is contained in this holddown groove and forms a fixed connection with this connector.
5. the stress cone type that overhead wire according to claim 1 is used and condenser type compound insulation type hv cable termination, is characterized in that: outside, described contact tube one end has protruded out tube connector, and this tube connector is fixedly connected with described radome inwall.
6. the stress cone type that overhead wire according to claim 1 is used and condenser type compound insulation type hv cable termination, is characterized in that: outside, described contact tube one end is provided with tube connector, and this tube connector is fixedly connected with described radome inwall.
7. the stress cone type that overhead wire according to claim 1 is used and condenser type compound insulation type hv cable termination, it is characterized in that: described stress cone structure comprises stress cone, stress cone sleeve pipe and fixture, described stress cone is coated on described cable, described stress cone casing pipe sleeve is placed in outside described stress cone, and described fixture is fixed described stress cone sleeve pipe.
8. the stress cone type that overhead wire according to claim 7 is used and condenser type compound insulation type hv cable termination, it is characterized in that: described fixture comprises cone holder, holddown spring and spring bracket, stress cone sleeve pipe is held in described cone holder, described holddown spring one end is fixing with cone holder, the described holddown spring other end and spring bracket are fixed, and described spring bracket is fixed on described flange.
9. the stress cone type that overhead wire according to claim 1 is used and condenser type compound insulation type hv cable termination, is characterized in that: described cable lower end cover has tail pipe, and this tail pipe one end and described flange are fixed.
10. stress cone type and the condenser type compound insulation type hv cable termination that overhead wire is used, it is characterized in that: comprise radome, outlet gold utensil, conductive pole, contact tube, connector, cable, stress cone structure, capacitor type insulating body and flange, described conductive pole is through radome, described conductive pole one end is connected with described outlet gold utensil, the described conductive pole other end is connected with described contact tube, described contact tube one end is fixedly connected with connector, described connector is fixedly connected with the conductor of described cable, described cable is outside equipped with described stress cone structure, the coated described contact tube of described capacitor type insulating body and stress cone structure, capacitor type insulating body one end and flange join, the fixing described stress cone structure of described flange and cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310446976.7A CN103532081B (en) | 2013-09-20 | 2013-09-20 | Stress cone and capacitive composite insulating high-voltage cable terminal for overhead line |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310446976.7A CN103532081B (en) | 2013-09-20 | 2013-09-20 | Stress cone and capacitive composite insulating high-voltage cable terminal for overhead line |
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| CN103532081A true CN103532081A (en) | 2014-01-22 |
| CN103532081B CN103532081B (en) | 2017-04-26 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016090824A1 (en) * | 2014-12-08 | 2016-06-16 | 北京瑞恒新源投资有限公司 | Capacitance-type cable terminal without filled insulation medium |
| CN106469594A (en) * | 2015-08-19 | 2017-03-01 | 北京天威瑞恒高压套管有限公司 | High voltage insulation structure, cable termination, bus, bushing and bushing shell for transformer |
| CN106921143A (en) * | 2017-04-28 | 2017-07-04 | 孔奇 | A kind of supporting rigid terminal of medium and high voltage cable |
| CN109449834A (en) * | 2018-11-05 | 2019-03-08 | 厦门市众慧悦和科技有限公司 | 10KV overhead distribution is quickly for arrangements of electric connection |
| CN110190578A (en) * | 2019-07-04 | 2019-08-30 | 中车青岛四方车辆研究所有限公司 | A kind of structure of voltage regulation for EMU hv cable termination |
| CN110224367A (en) * | 2019-07-04 | 2019-09-10 | 中车青岛四方车辆研究所有限公司 | A kind of EMU hv cable termination |
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| EP0651918B1 (en) * | 1992-07-20 | 1996-04-24 | Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co. Kg | Elastically deformable insulating and sealing body for cable plugs and the like |
| CN101064422A (en) * | 2006-04-24 | 2007-10-31 | 王钰 | Prefabricated high-voltage cable terminal |
| CN202034749U (en) * | 2011-03-23 | 2011-11-09 | 上海永锦电力电器有限公司 | High voltage crosslinking cable composite coat cable terminal |
| CN102856873A (en) * | 2011-06-30 | 2013-01-02 | 泰科电子(上海)有限公司 | Stress cone component and high-voltage cable connector component |
| CN203491653U (en) * | 2013-09-20 | 2014-03-19 | 天津沃尔法电力设备有限公司 | Stress cone type and capacitance type combined insulation high-voltage cable terminal for aerial wire |
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2013
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Patent Citations (5)
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| EP0651918B1 (en) * | 1992-07-20 | 1996-04-24 | Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co. Kg | Elastically deformable insulating and sealing body for cable plugs and the like |
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| CN202034749U (en) * | 2011-03-23 | 2011-11-09 | 上海永锦电力电器有限公司 | High voltage crosslinking cable composite coat cable terminal |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016090824A1 (en) * | 2014-12-08 | 2016-06-16 | 北京瑞恒新源投资有限公司 | Capacitance-type cable terminal without filled insulation medium |
| CN105743053A (en) * | 2014-12-08 | 2016-07-06 | 北京瑞恒新源投资有限公司 | Capacitive cable terminal without insulating medium filling |
| CN105743053B (en) * | 2014-12-08 | 2019-02-05 | 北京瑞恒新源投资有限公司 | A kind of capacitance type cable terminal being not filled with dielectric |
| CN106469594A (en) * | 2015-08-19 | 2017-03-01 | 北京天威瑞恒高压套管有限公司 | High voltage insulation structure, cable termination, bus, bushing and bushing shell for transformer |
| CN106469594B (en) * | 2015-08-19 | 2018-05-29 | 北京天威瑞恒高压套管有限公司 | Bushing shell for transformer |
| CN106921143A (en) * | 2017-04-28 | 2017-07-04 | 孔奇 | A kind of supporting rigid terminal of medium and high voltage cable |
| CN109449834A (en) * | 2018-11-05 | 2019-03-08 | 厦门市众慧悦和科技有限公司 | 10KV overhead distribution is quickly for arrangements of electric connection |
| CN109449834B (en) * | 2018-11-05 | 2024-03-22 | 厦门市众慧悦和科技有限公司 | Quick power supply connecting device for 10kV overhead distribution line |
| CN110190578A (en) * | 2019-07-04 | 2019-08-30 | 中车青岛四方车辆研究所有限公司 | A kind of structure of voltage regulation for EMU hv cable termination |
| CN110224367A (en) * | 2019-07-04 | 2019-09-10 | 中车青岛四方车辆研究所有限公司 | A kind of EMU hv cable termination |
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| CN103532081B (en) | 2017-04-26 |
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