CN104201043A - Intelligent switch with serially-connected double break points - Google Patents
Intelligent switch with serially-connected double break points Download PDFInfo
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- CN104201043A CN104201043A CN201410488884.XA CN201410488884A CN104201043A CN 104201043 A CN104201043 A CN 104201043A CN 201410488884 A CN201410488884 A CN 201410488884A CN 104201043 A CN104201043 A CN 104201043A
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- control device
- arc control
- intelligent switch
- series connection
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Abstract
The invention discloses an intelligent switch with serially-connected double break points. The intelligent switch comprises an epoxy resin shell, an upper leading-out terminal, a first arc extinguishing chamber, a second arc extinguishing chamber, a insulated pull rod connected with the arc extinguishing chambers, and a metal fixing cavity fixed in the shell. The first arc extinguishing chamber is serially connected with the movable end of the second arc extinguishing chamber and fixed on the fixing cavity. The intelligent switch further comprises a sensor which is disposed on the shell and connected with the main loop of the intelligent switch. The intelligent switch has the advantages that the positioning problem of the arc extinguishing chambers during production is solved, electric field concentration of the movable end of the arc extinguishing chamber and a position near soft connection is solved, shielding is achieved, and overall electric field distribution is optimized; current or voltage monitoring is achieved, and equipment operation reliability is increased; product size is reduced, electric power force caused by structural arrangement during operation is lowered, and high economical benefits are achieved.
Description
Technical field
The present invention relates to the field of electrical equipment in electric power system, particularly relate to a kind of intelligent switch with series connection double-fracture in mesohigh Intellectualized Switchgear.
Background technology
Vacuum circuit-breaker is with its long service life in recent years, can frequently cut-off, without advantages such as oil, few maintenance, is widely used, therefore employing vacuum switch opening-closing capacitor bank conventionally in the time carrying out reactive power compensation in electric power system.As everyone knows, vacuum switch can produce the switching overvoltage of various complexity in the process of opening-closing capacitor bank, if the performance of vacuum circuit-breaker is perfect not, easily occur restriking, can produce high overvoltage, bring serious harm to power equipment, limited vacuum circuit-breaker in this application on the one hand.And captured in recent years the market share of absolute predominance in middle pressure field along with vacuum switch, make this demand seem more outstanding and urgent.
Vacuum switch, in the time closing capacitor group, usually can produce very high the shoving and overvoltage of amplitude, and closing of especially back-to-back capacitor group, shoves and may reach hundred times of rated current.Not only unfavorable to the equipment in system, also may cause the misoperation of relaying protection, affect the stable of electric power system.
Patent CN201320308095.4 discloses and in one, has pressed opening-closing capacitor bank vacuum switch.Middle pressure opening-closing capacitor bank comprises with vacuum switch: the first arc control device, the second arc control device and middle electric-conductor; Connect by electric-conductor in the middle of described with the top of described the second arc control device in the bottom of described the first arc control device.This structure has solved the problem of cut-offfing in the high and DC switch of the rate of restriking in single break opening-closing capacitor bank.But owing to arranging reason, the junction non-uniform electric of movable end of arc extinguishing chamber and insulated tension pole, reliability is lower; Highly higher, be unfavorable for the miniaturization of product.
Summary of the invention
The present invention, in order to solve the problem of above-mentioned existence, provides a kind of intelligent switch with series connection double-fracture.Solve Electric Field Distribution inequality in product structure, problem that volume is larger, reduced the caused electric power of structural configuration simultaneously, realized product curtage and can measure, improved the operating reliability of switchgear.
The present invention adopts following technical scheme: a kind of intelligent switch with series connection double-fracture, comprise epoxy resin housing, upper leading-out terminal, the first arc control device, the second arc control device and the insulated tension pole being connected with above-mentioned arc control device, it is characterized in that, also comprise that one is fixed on the metal fixed cavity in housing, the moved end series connection of described the first arc control device and the second arc control device, and be fixed on fixed cavity.Adopt the fixed cavity of metal tub structure, solved the orientation problem of the arc control device in production process, solved movable end of arc extinguishing chamber and near the concentrated problem of electric field that is flexible coupling simultaneously, play shielding action, optimize overall Electric Field Distribution.
Preferably, also comprise transducer, described transducer is current transformer, voltage transformer or current-voltage transformer; Described sensor setting, on housing, and connects the major loop of intelligent switch.Realize the monitoring of curtage, improved the operating reliability of equipment.
Further, the moving conductive rod of described the first arc control device and the second arc control device is connected respectively one and is flexible coupling or jointly connects one and be flexible coupling, described in be flexible coupling and be electrically connected with fixed cavity.
Further, at least one arc control device is vertical with insulated tension pole, and the moved end of these arc control device, is connected by a rotation connecting lever interlock that realizes vertical direction with insulated tension pole.Arc control device adopt and are arranged vertically, and have reduced the volume of product, have reduced the electric power in the running that structural configuration causes simultaneously.
Also further, the lower end of described fixed cavity is lower than the intersection of the metal joint in insulated tension pole and insulating bar.
Also further, described the first arc control device are connected respectively an insulated tension pole with the second arc control device, or connect same insulated tension pole.
Also further, described upper leading-out terminal, the first arc control device, the second arc control device, fixed cavity and transducer one are cast in housing.Fixed cavity is cast in the enclosure interior of epoxy resin, high field intensity can be incorporated into enclosure interior, shield, solved the unequal problem of Electric Field Distribution that the electric connecting part of fixed cavity inside causes, make full use of the advantage of the higher tolerance field intensity of epoxy resin.
Also further, over the ground or on pole inner chamber full skirt is set at interpolar, the utmost point.Meet the requirement of various height above sea level and gradation for surface pollution.
Also further, the material of described fixed cavity is aluminium.
Usefulness of the present invention is, has solved the orientation problem of the arc control device in production process, has solved screen movable end of arc extinguishing chamber and near the concentrated problem of electric field that is flexible coupling simultaneously, plays shielding action, optimizes overall Electric Field Distribution; Realize the monitoring of curtage, improved the operating reliability of equipment; Reduce the volume of product, reduced the electric power in the running that structural configuration causes simultaneously; There is higher economic benefit.
Brief description of the drawings
Fig. 1 is the structural representation of embodiments of the invention one;
Fig. 2 is the structural representation of embodiments of the invention two;
Fig. 3 is the structural representation of embodiments of the invention three;
Reference numeral: 1, upper leading-out terminal; 2, transducer; 3, the first arc control device; 4, fixed cavity; 5, insulated tension pole; 6, rotation connecting lever; 7, the second arc control device; 8, housing; 9, be flexible coupling; 10, full skirt.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Embodiment mono-, as shown in Figure 1, a kind of intelligent switch with series connection double-fracture, comprise epoxy resin housing 8, upper leading-out terminal 1, the first arc control device 3, the second arc control device 7, insulated tension pole 5, transducer 2, be flexible coupling 9, the moved end of fixed cavity 4, the first arc control device and the second arc control device is fixed on fixed cavity 4.Transducer 2 can be current transformer, voltage transformer or current-voltage transformer, and connects the major loop of intelligent switch, realizes the monitoring of curtage, has improved the operating reliability of equipment.Transducer 2 is arranged on arc control device top, makes product structure compacter.Also can be arranged on arc control device both sides or the both sides at fixed cavity, its effect is equal to.
In the present embodiment, fixed cavity 4 adopts the tubular structure of aluminum, and upper leading-out terminal 1, the first arc control device 3, the second arc control device 7, fixed cavity 4 and transducer 2 one are cast in housing 1.The first arc control device 3 are connected same insulated tension pole 5 with the moved end of the second arc control device 7.The first arc control device 3 are coaxial with insulated tension pole 5, are positioned at the top of insulated tension pole 5; And the second arc control device 7 are vertical with insulated tension pole 5, the moved end of the second arc control device 7 is connected with insulated tension pole 5 interlock that realizes vertical direction by a rotation connecting lever 6.Thereby realize an insulated tension pole and can operate two vacuum interrupters simultaneously, compare other scheme and more save cost and space.Being connected one is flexible coupling 9 jointly for the moving conductive rod of the first arc control device 3 and the second arc control device 7, is flexible coupling 9 to be electrically connected with fixed cavity 4, realizes the moved end of two arc control device and connects.The lower end of fixed cavity 4 is lower than the intersection of the metal joint in insulated tension pole 5 and insulating bar.
At interpolar, the utmost point over the ground or full skirt 10 is set on pole inner chamber.Meet the requirement of various height above sea level and gradation for surface pollution.
Embodiment bis-, as shown in Figure 2, is with the difference of embodiment mono-, the moved end of the first arc control device 3 and the second arc control device 7 is connected respectively an insulated tension pole 4.
Embodiment tri-, as shown in Figure 3, is with the difference of embodiment mono-: the first arc control device 3 are placement vertical with insulated tension pole 5 also, the moved end of the first arc control device 3 is connected with insulated tension pole 5 interlock that realizes vertical direction by a rotation connecting lever 6; The first arc control device 3 and the second arc control device 7 moving conductive rod be connected respectively one and be flexible coupling 9, being flexible coupling 9 is electrically connected with fixed cavity 4.
Although specifically show and introduced the present invention in conjunction with preferred embodiment; but those skilled in the art should be understood that; not departing from the spirit and scope of the present invention that appended claims limits; in the form and details the present invention is made a variety of changes, be protection scope of the present invention.
Claims (9)
1. one kind has the intelligent switch of series connection double-fracture, comprise epoxy resin housing, upper leading-out terminal, the first arc control device, the second arc control device and the insulated tension pole being connected with above-mentioned arc control device, it is characterized in that, also comprise that one is fixed on the metal fixed cavity in housing, the moved end series connection of described the first arc control device and the second arc control device, and be fixed on fixed cavity.
2. a kind of intelligent switch with series connection double-fracture as claimed in claim 1, is characterized in that, also comprise transducer, described transducer is current transformer, voltage transformer or current-voltage transformer; Described sensor setting, on housing, and connects the major loop of intelligent switch.
3. a kind of intelligent switch with series connection double-fracture as described in claim 1 or 2 any one, it is characterized in that, the moving conductive rod of described the first arc control device and the second arc control device is connected respectively one and is flexible coupling or jointly connects one and be flexible coupling, described in be flexible coupling and be electrically connected with fixed cavity.
4. a kind of intelligent switch with series connection double-fracture as claimed in claim 3, is characterized in that, at least one arc control device is vertical with insulated tension pole, and the moved end of these arc control device, is connected by a rotation connecting lever interlock that realizes vertical direction with insulated tension pole.
5. a kind of intelligent switch with series connection double-fracture as claimed in claim 4, is characterized in that, the lower end of described fixed cavity is lower than the intersection of the metal joint in insulated tension pole and insulating bar.
6. a kind of intelligent switch with series connection double-fracture as claimed in claim 5, is characterized in that, described the first arc control device are connected respectively an insulated tension pole with the second arc control device, or connect same insulated tension pole.
7. a kind of intelligent switch with series connection double-fracture as claimed in claim 5, is characterized in that, described upper leading-out terminal, the first arc control device, the second arc control device, fixed cavity and transducer one are cast in housing.
8. a kind of intelligent switch with series connection double-fracture as claimed in claim 5, is characterized in that, over the ground or on pole inner chamber full skirt is set at interpolar, the utmost point.
9. a kind of intelligent switch with series connection double-fracture as claimed in claim 5, is characterized in that, the material of described fixed cavity is aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410488884.XA CN104201043A (en) | 2014-09-23 | 2014-09-23 | Intelligent switch with serially-connected double break points |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410488884.XA CN104201043A (en) | 2014-09-23 | 2014-09-23 | Intelligent switch with serially-connected double break points |
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| Publication Number | Publication Date |
|---|---|
| CN104201043A true CN104201043A (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410488884.XA Pending CN104201043A (en) | 2014-09-23 | 2014-09-23 | Intelligent switch with serially-connected double break points |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024371A (en) * | 2015-07-22 | 2015-11-04 | 江苏靖江互感器厂有限公司 | Four-in-one intelligent sampling discharging device |
| CN114420496A (en) * | 2021-12-23 | 2022-04-29 | 平高集团有限公司 | DC load switch |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2476872Y (en) * | 2000-11-16 | 2002-02-13 | 北京电研华源电力技术有限公司 | Outdoor high-voltage vacuum circuit breaker |
| CN1624845A (en) * | 2004-12-09 | 2005-06-08 | 虞旭海 | Series outdoor vacuum circuit breaker |
| US20090084762A1 (en) * | 2007-09-27 | 2009-04-02 | Wristen Cecil C | Adjustable switching mechanism for series coupled vacuum interrupters |
| CN204067178U (en) * | 2014-09-23 | 2014-12-31 | 麦克奥迪（厦门）电气股份有限公司 | A kind of intelligent switch with series connection double-fracture |
-
2014
- 2014-09-23 CN CN201410488884.XA patent/CN104201043A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2476872Y (en) * | 2000-11-16 | 2002-02-13 | 北京电研华源电力技术有限公司 | Outdoor high-voltage vacuum circuit breaker |
| CN1624845A (en) * | 2004-12-09 | 2005-06-08 | 虞旭海 | Series outdoor vacuum circuit breaker |
| US20090084762A1 (en) * | 2007-09-27 | 2009-04-02 | Wristen Cecil C | Adjustable switching mechanism for series coupled vacuum interrupters |
| CN204067178U (en) * | 2014-09-23 | 2014-12-31 | 麦克奥迪（厦门）电气股份有限公司 | A kind of intelligent switch with series connection double-fracture |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024371A (en) * | 2015-07-22 | 2015-11-04 | 江苏靖江互感器厂有限公司 | Four-in-one intelligent sampling discharging device |
| CN114420496A (en) * | 2021-12-23 | 2022-04-29 | 平高集团有限公司 | DC load switch |
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Application publication date: 20141210 |