CN101409175A - Combined high-voltage load switch and high-voltage switchgear thereof - Google Patents
Combined high-voltage load switch and high-voltage switchgear thereof Download PDFInfo
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- CN101409175A CN101409175A CNA2008100561439A CN200810056143A CN101409175A CN 101409175 A CN101409175 A CN 101409175A CN A2008100561439 A CNA2008100561439 A CN A2008100561439A CN 200810056143 A CN200810056143 A CN 200810056143A CN 101409175 A CN101409175 A CN 101409175A
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Abstract
The invention relates to a combined high voltage load switch and a high voltage switch device thereof. The combined high voltage load switch is a pole rod unit which is formed by sealing two vacuum arc extinguishing chambers and high voltage inlet-outlet wire conductors by epoxide resin. The high voltage switch device comprises two sets of the combined high voltage load switches at least. A switch operating mechanism is arranged above a cabinet, and a sealing pole rod unit and a connecting bus bar are arranged downwards sequentially. The surface of the connecting bus bar is enveloped with silicon rubber. An end of the sealing pole rod unit to ground is upward, and a load wiring end is downward. Compared with the prior art, the invention has the advantages that 1. The epoxide resin seals two arc extinguishing chambers into a pole rod unit, so that the high voltage load switch and a grounded switch are maintenance free; 2. The insulating standard in the switch device is not influenced by the change of the conditions such as the humidity, the dust and the like in air and the insect, thereby eliminating the potential safety hazard of short circuit between switches, between a cooper bar and the switch and between the copper bars; and 3. The switch device has simple structure, small size, high reliability and environmental protection.
Description
Technical field
The invention belongs to the high-voltage electrical equipment field, particularly a kind of combined high-voltage on-load switch and high voltage switchgear thereof that high voltage load switch and earthed switch is sealed into admittedly pole by epoxy resin.
Background technology
High voltage load switch and switchgear thereof are the obligato equipment of power transmission and transformation line, the high voltage load switch arc extinguishing generally adopts the air blowing arc extinguishing or fills SF6 (sulphur hexafluoride) gas-insulated arc extinguishing, in order to respond the discharging that " Tokyo protocol " reduces greenhouse gas, replacing the high voltage load switch that SF6 insulate with the high voltage load switch of vacuum interrupter has been the general common recognitions of people; In the high-voltage switch gear cabinet equipment, the high voltage load switch volume that contains vacuum interrupter is little, reduced the space hold in equipment, yet high-tension switch cabinet is interior except high voltage load switch is arranged, also the earthed switch that is attached thereto to be housed, high voltage load switch and earthed switch be separate installation in switchgear, therefore need the certain safe distance of maintenance, also to keep certain safe distance between the load bus of the phase and phase in the high voltage switchgear (exposed copper bar) simultaneously, because the dielectric between them is an air, with 12 kilovolts be example, its safe distance at least will be more than 125 millimeters; Therefore, the size of on-load switch equipment is still bigger, and floor space is big, and the switchgear of assembling by this way, the level of its high voltage load switch and earthed switch and connection bus copper bar mutually insulated is affected with the variation and the insect of conditions such as airborne humidity, dust; The potential safety hazard that has short circuit, and need often to safeguard.
Summary of the invention
The objective of the invention is to propose a kind of high voltage load switch and earthed switch to be enclosed in together combined high-voltage on-load switch admittedly by epoxy resin, and the high voltage switchgear that connects of the copper bar bus that uses the silicon rubber wrap insulate, be beneficial to the miniaturization of high voltage switchgear, in equipment, avoid occurring short circuit potential safety hazard, reduce the technical scheme that switchgear is safeguarded.
To achieve these goals, technical scheme of the present invention is:
One, a kind of combined high-voltage on-load switch of the present invention comprises two vacuum interrupters and high pressure turnover line conductor, and described vacuum interrupter one end is a fixed contact, and the vacuum interrupter other end is a moving contact; Described two vacuum interrupters are separated from each other by solid Feng Chengyi the pole unit of epoxy resin, one of them vacuum interrupter is as on-load switch, another vacuum interrupter is as earthed switch, the moving contact of high pressure turnover line conductor and described two vacuum interrupters is connected in parallel, seal the epoxy resins insulation sleeve pipe on the high pressure turnover line conductor, the together solid envelope in described epoxy resins insulation sleeve pipe and pole unit is connected as a single entity.
Two, a kind of high voltage switchgear of the present invention comprises that cabinet, switch connect busbar, ground connection connects busbar, switch operating mechanism and at least two group high voltage load switches;
Described high voltage load switch is the combined high-voltage on-load switch, comprises vacuum interrupter and high pressure turnover line conductor, and described vacuum interrupter one end is a fixed contact, and the vacuum interrupter other end is a moving contact; Described vacuum interrupter is two, two vacuum interrupters are separated from each other by solid Feng Chengyi the pole unit of epoxy resin, one of them vacuum interrupter is as on-load switch, another vacuum interrupter is as earthed switch, the moving contact of high pressure turnover line conductor and described on-load switch and earthed switch is connected in parallel, seal the epoxy resins insulation sleeve pipe on the high pressure turnover line conductor, the together solid envelope in described epoxy resins insulation sleeve pipe and pole unit is connected as a single entity;
Described switch connects the busbar surface and seals silicon rubber as insulating barrier;
Described switch connects busbar connected load switch, and described ground connection connects busbar and connects earthed switch; Switch operating mechanism connects the moving contact of described two vacuum interrupters respectively by insulated tension pole.
The advantage that the present invention contrasts prior art is:
1. the present invention with solid Feng Chengyi the pole unit of two arc control device, has realized the non-maintaining of high voltage load switch and earthed switch with epoxy resin;
2. insulation level is not affected with the variation and the insect of conditions such as airborne humidity, dust in the switchgear of the present invention, has eliminated between switch and the switch, the potential safety hazard of short circuit between copper bar and switch and copper bar and the copper bar, the reliability height;
3. switchgear of the present invention is simple in structure, volume is little, highly reliable, environmental protection.
Description of drawings
Fig. 1 is the high voltage load switch structural representation;
Fig. 2 is the high voltage switchgear structural representation;
Fig. 3 connects busbar and high voltage load switch syndeton schematic diagram, the A-A cutaway view of Fig. 2 for switch;
Fig. 4 connects busbar sectional schematic diagram, the B-B cutaway view of Fig. 2 for the high voltage switchgear switch;
Fig. 5 is a high voltage switchgear electricity principle schematic.
Below in conjunction with drawings and Examples the present invention is made a detailed description.
Embodiment
Present embodiment is a kind of combined high-voltage on-load switch, referring to Fig. 1, described combined high-voltage on-load switch comprises arc control device 1 and arc control device 2 and high pressure turnover line conductor 3, two arc control device one ends are fixed contact 4, the arc control device other end is a moving contact 5, and described two arc control device are separated from each other the individual pole shape unit 7 that is shaped as by epoxy resin 6 solid Feng Chengyi; Described arc control device 1 are as on-load switch, arc control device 2 are as earthed switch, the moving contact of high pressure turnover line conductor and described two vacuum interrupters is connected in parallel, seal epoxy resins insulation sleeve pipe 8 on the high pressure turnover line conductor, the together solid envelope in epoxy resins insulation sleeve pipe and pole unit is connected as a single entity.
In the present embodiment, described arc control device are the ceramic case vacuum interrupter.
In the present embodiment, it is that two vacuum interrupters and the high pressure turnover line conductor that will connect is placed in the pole unit mould that described epoxy resin seals admittedly, adopt the APG technology in mould, to inject epoxy resin, epoxy resin forms a pole shape epoxy resin housing around two vacuum interrupters and high pressure turnover line conductor, this housing seals two vacuum interrupters and high pressure turnover line conductor admittedly.
In the present embodiment, described two vacuum interrupters are parallel to each other, placed side by side, and the epoxy resin of injection is kept apart it mutually; Towards two ends, described pole unit, the moving contact of two vacuum interrupters is towards unanimity respectively for the fixed contact of described two vacuum interrupters and moving contact; High pressure turnover line conductor is arranged on the middle part of described pole unit perpendicular to arc control device central axis 9, high pressure turnover line conductor one end 301 is connected with the moving contact of described two vacuum interrupters, the high pressure turnover line conductor other end 302 is the high-tension cable incoming end, and this high-voltage line incoming end and American cable plug connect.
In the present embodiment, described pole unit one end is for holding over the ground, the other end is the load terminals, described end over the ground is provided with groove 701, described groove is by the mold injects molding for epoxy resin, be provided with the ripple 702 that is used to increase insulation distance along the groove inwall, the moving contact of described two vacuum interrupters is in the bottom of groove; Described pole unit load terminals are provided with wiring insulation chamber 703, and described insulation chamber is by the mold injects molding for epoxy resin, and the fixed contact 4 of on-load switch is exposed to the bottom of insulation chamber.Described groove has guaranteed that switch control output shaft and miscellaneous equipment have enough insulation distances, and described wiring insulation chamber has guaranteed that high voltage load switch is connected the connection and the external insulation of busbar with switch; On the fixed contact of earthed switch arc control device, be connected with binding post 10.
In the present embodiment, described being connected in parallel realizes that by conductor assembly described conductor assembly comprises: brush holder 11, conductive sleeve 12, helical spring 13 and fairlead 14; Two brush holders and the welding of high pressure turnover line conductor, conductive sleeve is enclosed within respectively as on the moving contact of on-load switch arc control device and on the moving contact as the earthed switch arc control device, helical spring is placed between conductive sleeve and the brush holder, helical spring closely contacts with brush holder with conductive sleeve, and fairlead is enclosed within on the conductive sleeve and is fixedly mounted on the brush holder upper end; Described fairlead material is a polytetrafluoroethylene; When the moving contact (branch of switch, close action) of pulling arc control device, conductive sleeve slidably reciprocates in fairlead, helical spring has guaranteed that conductive sleeve and the tight of brush holder contact, and then has guaranteed that the moving contact of high pressure turnover line conductor and described two vacuum interrupters has good electrical contact.
Present embodiment is a kind of high voltage switchgear, referring to Fig. 2, Fig. 3, Fig. 4, Fig. 5 and embodiment 1, described high voltage switchgear comprises that cabinet 15, switch connect busbar 16, ground connection connects busbar 17, switch operating mechanism 18 and at least two group high voltage load switches, and every group is A phase, B phase, the C phase that three high voltage load switches correspond respectively to power supply; Described high voltage load switch is embodiment 1 a described combined high-voltage on-load switch (pole unit) 7, and described switch connects the busbar surface and seals silicon rubber 19 as insulating barrier;
Described switch connects the on-load switch fixed contact that busbar connects the combined high-voltage on-load switch, and described ground connection connects the earthed switch fixed contact that busbar connects the combined high-voltage on-load switch; Switch operating mechanism connects the on-load switch of combined high-voltage on-load switch and the moving contact of earthed switch by insulated tension pole 20 respectively.
In the present embodiment, described switch operating mechanism in cabinet above, be followed successively by combined high-voltage on-load switch (pole unit) downwards and be connected busbar, the pole unit in the high-tension switch cabinet is an inverted structure, be that the pole unit is held upwards over the ground, pole unit load terminals are downward.
In the present embodiment, described combined high-voltage on-load switch is four groups, described switch connects busbar and is fastenedly connected straight conductor 22 and elbow conductor 23 by bolt 21, described straight conductor and elbow end conductor are provided with plug 24, be fixed with socket 25 on the on-load switch fixed contact in described pole unit connection insulation chamber, the plug of described straight conductor and elbow conductor inserts on the fixing socket of described on-load switch fixed contact, switch is connected busbar and four groups of combined high-voltage on-load switches by A mutually, the B phase, C is connected, and described straight conductor and elbow conductive surface are sealed silicon rubber 26 as insulating barrier.
Fig. 5 is the electrical schematic diagram of present embodiment high voltage switchgear.
Claims (9)
1. a combined high-voltage on-load switch comprises two vacuum interrupters and high pressure turnover line conductor, and described vacuum interrupter one end is a fixed contact, and the vacuum interrupter other end is a moving contact; It is characterized in that, described two vacuum interrupters are separated from each other by solid Feng Chengyi the pole unit of epoxy resin, one of them vacuum interrupter is as on-load switch, another vacuum interrupter is as earthed switch, the moving contact of high pressure turnover line conductor and described two vacuum interrupters is connected in parallel, seal the epoxy resins insulation sleeve pipe on the high pressure turnover line conductor, the together solid envelope in described epoxy resins insulation sleeve pipe and pole unit is connected as a single entity.
2. combined high-voltage on-load switch according to claim 1, it is characterized in that, it is that two vacuum interrupters and the high pressure turnover line conductor that will connect is placed in the pole unit mould that described epoxy resin seals admittedly, in mould, inject epoxy resin, epoxy resin forms a pole shape epoxy resin housing around two vacuum interrupters and high pressure turnover line conductor, this housing seals two vacuum interrupters and high pressure turnover line conductor admittedly.
3. combined high-voltage on-load switch according to claim 1 is characterized in that, described two vacuum interrupters are parallel to each other, placed side by side, and the epoxy resin of injection is kept apart it mutually; Towards two ends, described pole unit, the moving contact of two vacuum interrupters is towards unanimity respectively for the fixed contact of described two vacuum interrupters and moving contact; High pressure turnover line conductor is arranged on the middle part of described pole unit perpendicular to the arc control device central axis, and high pressure turnover line conductor one end is connected with the moving contact of described two vacuum interrupters, and it is the high-tension cable incoming end that high pressure passes in and out the line conductor other end.
4. combined high-voltage on-load switch according to claim 1 is characterized in that, described pole unit is held over the ground and is provided with groove, is provided with the ripple that is used to increase insulation distance along the groove inwall, and the moving contact of described two vacuum interrupters is in the bottom of groove; Described pole unit load terminals are provided with wiring insulation chamber.
5. combined high-voltage on-load switch according to claim 1 is characterized in that, described being connected in parallel realizes that by conductor assembly described conductor assembly comprises: brush holder, conductive sleeve, helical spring and fairlead; Two brush holders and the welding of high pressure turnover line conductor, conductive sleeve is enclosed within respectively on the moving contact of two arc control device, helical spring is placed between conductive sleeve and the brush holder, and helical spring closely contacts with brush holder with conductive sleeve, and fairlead is enclosed within and is installed in the brush holder upper end on the conductive sleeve.
6. combined high-voltage on-load switch according to claim 5 is characterized in that, described fairlead material is a polytetrafluoroethylene.
7. high voltage switchgear, comprise that cabinet, switch connect busbar, ground connection connects busbar, switch operating mechanism and at least two group high voltage load switches, it is characterized in that, described high voltage load switch is the described combined high-voltage on-load switch of claim 1, and described switch connects the busbar surface and seals silicon rubber as insulating barrier; Described switch connects the on-load switch fixed contact that busbar connects the combined high-voltage on-load switch, and described ground connection connects the earthed switch fixed contact that busbar connects the combined high-voltage on-load switch; Switch operating mechanism connects the moving contact of two vacuum interrupters of combined high-voltage on-load switch respectively by insulated tension pole.
8. high voltage switchgear according to claim 7, it is characterized in that, described switch operating mechanism in cabinet above, be followed successively by the modular combined high-voltage on-load switch of pole downwards and be connected busbar, the pole unit is held upwards over the ground, and pole unit load terminals are downward.
9. according to claim 7 or 8 described high voltage switchgears, it is characterized in that, described combined high-voltage on-load switch is four groups, described switch connects busbar and connects straight conductor and elbow conductor by bolted, described straight conductor and elbow end conductor are provided with plug, described straight conductor and elbow conductor insert pole unit connection insulation chamber contact with the on-load switch fixed contact, with switch be connected busbar and four groups of combined high-voltage on-load switches by A mutually, B phase, C be connected, described straight conductor and elbow conductive surface are sealed silicon rubber as insulating barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100561439A CN101409175B (en) | 2008-01-14 | 2008-01-14 | Combined high-voltage load switch and high-voltage switchgear thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100561439A CN101409175B (en) | 2008-01-14 | 2008-01-14 | Combined high-voltage load switch and high-voltage switchgear thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101409175A true CN101409175A (en) | 2009-04-15 |
| CN101409175B CN101409175B (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100561439A Expired - Fee Related CN101409175B (en) | 2008-01-14 | 2008-01-14 | Combined high-voltage load switch and high-voltage switchgear thereof |
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| CN (1) | CN101409175B (en) |
Cited By (10)
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| CN102623231A (en) * | 2012-03-23 | 2012-08-01 | 中能电气（福清）有限公司 | Solid-sealed polar column unit for solid insulation switch equipment |
| CN103296606A (en) * | 2013-06-08 | 2013-09-11 | 扬州新概念电气有限公司 | Multi-functional solid seal assembly |
| WO2013159278A1 (en) * | 2012-04-24 | 2013-10-31 | 北京维益埃电气有限公司 | Fixation and encapsulation type vacuum switch cabinet with solid insulating assembly |
| CN103500681A (en) * | 2013-09-30 | 2014-01-08 | 北京维益埃电气股份有限公司 | Vacuum arc extinguishing chamber |
| CN103515140A (en) * | 2013-09-30 | 2014-01-15 | 库柏(宁波)电气有限公司 | Switching device phase unit |
| CN103606481A (en) * | 2013-11-28 | 2014-02-26 | 北京交通大学长三角研究院 | Metal closed solid insulation pole-mounted vacuum switch |
| CN105261517A (en) * | 2015-10-20 | 2016-01-20 | 珠海许继电气有限公司 | Seal pole for PT cabinet |
| CN108172447A (en) * | 2018-01-06 | 2018-06-15 | 北海银河开关设备有限公司 | A kind of electric locomotive earthing switch |
| CN108777242A (en) * | 2018-05-18 | 2018-11-09 | 慈溪益成电器有限公司 | The production method of outdoor double-fracture pole |
| CN110473750A (en) * | 2018-05-11 | 2019-11-19 | 上海电器股份有限公司人民电器厂 | A kind of improvement contact system of low-voltage circuit breaker |
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| JP3431439B2 (en) * | 1997-03-06 | 2003-07-28 | 株式会社日立製作所 | Insulated switchgear |
| WO2000021105A1 (en) * | 1998-10-02 | 2000-04-13 | Hitachi, Ltd. | Vacuum switch gear |
| JP4537569B2 (en) * | 2000-04-24 | 2010-09-01 | 三菱電機株式会社 | Vacuum insulated switchgear and manufacturing method thereof |
| JP4564799B2 (en) * | 2004-08-03 | 2010-10-20 | 大垣電機株式会社 | High voltage load switch |
| JP4841875B2 (en) * | 2005-06-29 | 2011-12-21 | 株式会社日立製作所 | Vacuum insulated switchgear |
| DE102005039555A1 (en) * | 2005-08-22 | 2007-03-01 | Abb Technology Ltd. | Method for producing switch pole parts for low - medium and high - voltage switchgear, as well as switch pole part itself |
| CN100527305C (en) * | 2007-01-08 | 2009-08-12 | 常州市德春电器有限公司 | Vacuum load switch |
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2008
- 2008-01-14 CN CN2008100561439A patent/CN101409175B/en not_active Expired - Fee Related
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| CN102623231B (en) * | 2012-03-23 | 2015-05-06 | 中能电气（福清）有限公司 | Solid-sealed polar column unit for solid insulation switch equipment |
| CN102623231A (en) * | 2012-03-23 | 2012-08-01 | 中能电气（福清）有限公司 | Solid-sealed polar column unit for solid insulation switch equipment |
| WO2013159278A1 (en) * | 2012-04-24 | 2013-10-31 | 北京维益埃电气有限公司 | Fixation and encapsulation type vacuum switch cabinet with solid insulating assembly |
| CN103296606A (en) * | 2013-06-08 | 2013-09-11 | 扬州新概念电气有限公司 | Multi-functional solid seal assembly |
| CN103500681A (en) * | 2013-09-30 | 2014-01-08 | 北京维益埃电气股份有限公司 | Vacuum arc extinguishing chamber |
| CN103515140A (en) * | 2013-09-30 | 2014-01-15 | 库柏(宁波)电气有限公司 | Switching device phase unit |
| CN103606481A (en) * | 2013-11-28 | 2014-02-26 | 北京交通大学长三角研究院 | Metal closed solid insulation pole-mounted vacuum switch |
| CN105261517A (en) * | 2015-10-20 | 2016-01-20 | 珠海许继电气有限公司 | Seal pole for PT cabinet |
| CN105261517B (en) * | 2015-10-20 | 2018-11-06 | 珠海许继电气有限公司 | A kind of pole of PT cabinets |
| CN108172447A (en) * | 2018-01-06 | 2018-06-15 | 北海银河开关设备有限公司 | A kind of electric locomotive earthing switch |
| CN110473750A (en) * | 2018-05-11 | 2019-11-19 | 上海电器股份有限公司人民电器厂 | A kind of improvement contact system of low-voltage circuit breaker |
| CN110473750B (en) * | 2018-05-11 | 2024-05-14 | 上海电器股份有限公司人民电器厂 | Improved contact system of low-voltage circuit breaker |
| CN108777242A (en) * | 2018-05-18 | 2018-11-09 | 慈溪益成电器有限公司 | The production method of outdoor double-fracture pole |
Also Published As
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|---|---|
| CN101409175B (en) | 2011-05-04 |
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| C56 | Change in the name or address of the patentee |
Owner name: BEIJING VEE ELECTRIC EQUIPMENT CO., LTD. Free format text: FORMER NAME: BEIJING WEIYIAI ELECTRIC CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 101300 Beijing city Shunyi District Shuanghe town two or three industrial base and Lunanren Patentee after: Beijing Vee Electric Equipment Co., Ltd. Address before: 101300 Beijing city Shunyi District Shuanghe town two or three industrial base and Lunanren Patentee before: VEE Electric Equipment Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20160114 |