CN101431218B - Intelligent duplicate supply switching device - Google Patents
Intelligent duplicate supply switching device Download PDFInfo
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- CN101431218B CN101431218B CN2008101810405A CN200810181040A CN101431218B CN 101431218 B CN101431218 B CN 101431218B CN 2008101810405 A CN2008101810405 A CN 2008101810405A CN 200810181040 A CN200810181040 A CN 200810181040A CN 101431218 B CN101431218 B CN 101431218B
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- power source
- main power
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Abstract
The invention discloses an intelligent double-power switching device. A vacuum breaker is adopted to be arranged on a railcar, and the movement of the railcar drives the movement of the vacuum breaker, so as to realize switching between a main power supply and a standby power supply. Compared with two switch cabinets and corresponding mechanical interlocking devices, the invention has simpler structure, the cost is greatly reduced, and the working performance is more stable and reliable.
Description
Technical field
The invention belongs to the power distribution automation equipment technical field, be specifically related to a kind of intelligent duplicate supply switching device.
Background technology
In electric power networks, there are many users to require very high to power supply reliability, for example colliery and oil plant, in a single day power outage takes place in these units, will bring great economic loss even cause casualties to unit, so in the electric power system of these units, all need to have main power source and stand-by power supply, when power outage appears in main power source, stand-by power supply must drop into immediately and restore electricity, in order to achieve this end, need between main power source and stand-by power supply, carry out manual switchover or automatic switchover by the duplicate supply switching mechanism.
Traditional duplicate supply switching mechanism is to adopt two high-tension switch cabinets to add the extremely complicated electric interlocking installation of a cover, is strictly on guard against two loop paired runnings.This duplicate supply device has following three big defectives: (1) locking is unreliable: at present, the electrical interlocks reliability is too low, forbids to use, and mechanical interlocking device country does not have unified design specification standard again, can only be designed voluntarily, be transformed by various places.(2) complicated operation, and easy jam cause electric power accident; (3) investment is big, need purchase two switch cubicles, designs locking device then, is retrofitted on the switch cubicle again.
Also have a kind of difficulty to be in addition, the voltage of main power source and stand-by power supply is different, differs bigger, and for example how the stand-by power supply of the main power source of 10KV and 24KV realizes conversion between this two-way power supply, also is a technical barrier.
Summary of the invention
The purpose of this invention is to provide all reasonable intelligent duplicate supply switching device of a kind of designs simplification, stability and fail safe.
The technical scheme that realizes the object of the invention is: a kind of intelligent duplicate supply switching device comprises housing and track, the railcar that can move back and forth along track and a vacuum circuit-breaker on the railcar is set; Described vacuum circuit-breaker is provided with six inlet wire elements, three or six and goes out kind of thread elements and a vacuum interruption mechanism that is used for break-make inlet wire element and goes out circuit between the kind of thread elements; Described inlet wire element is respectively three main power source inlet wire elements that are used for being electrically connected with main power circuit and three stand-by power supply inlet wire elements that are used for being electrically connected with stand-by power supply; Be electrically connected and be symmetricly set on the two side ends of this described vacuum circuit-breaker between described each a main power source inlet wire element and the corresponding stand-by power supply inlet wire element; Also be provided with three main power source wiring element being used for matching in the described housing, be used for three stand-by power supply wiring element matching with each stand-by power supply inlet wire element with each main power source inlet wire element of vacuum circuit-breaker; Described main power source wiring element and described main power source inlet wire element are positioned at the same side of vacuum circuit-breaker, and described stand-by power supply wiring element and described stand-by power supply inlet wire element are positioned at the same side of vacuum circuit-breaker; Described railcar is between main power source wiring element and stand-by power supply wiring element; Described railcar along track when moving near main power source wiring element direction, drive described vacuum circuit-breaker towards main power source inlet wire element that moves, finally can make described vacuum circuit-breaker near main power source wiring element direction and described main power source wiring element closure; Described railcar along track when moving near stand-by power supply wiring element direction, drive described vacuum circuit-breaker towards stand-by power supply inlet wire element that moves, finally can make described vacuum circuit-breaker near stand-by power supply wiring element direction and described stand-by power supply wiring element closure.
In the technique scheme, described vacuum circuit-breaker comprises base and three poles; Be equipped with a main power source inlet wire element and a stand-by power supply inlet wire element on described each pole, described main power source wiring element and described main power source inlet wire element are positioned at the same side of this pole, and described stand-by power supply wiring element and described stand-by power supply inlet wire element are positioned at the same side of this pole.
In the technique scheme, described each pole is provided with two and goes out kind of thread elements, specifically be that main power source goes out kind of thread elements and stand-by power supply goes out kind of thread elements, described main power source goes out kind of thread elements and stand-by power supply goes out the two side ends that kind of thread elements is symmetricly set on this pole, and described main power source goes out the same side that kind of thread elements and described main power source inlet wire element are positioned at pole, and described stand-by power supply goes out the same side that kind of thread elements and described stand-by power supply inlet wire element are positioned at pole.
In the technique scheme, also be provided with in the described housing and be used for going out three main power source extraction elements that kind of thread elements matches, being used for going out three stand-by power supply extraction elements that kind of thread elements matches with each stand-by power supply with each main power source of vacuum circuit-breaker; Described main power source extraction elements and described main power source outlet element are positioned at the same side of pole, and described stand-by power supply extraction elements and described stand-by power supply outlet element are positioned at the same side of pole; In the main power source inlet wire element and described main power source wiring element closure or disconnection of described vacuum circuit-breaker, described main power source extraction elements and described main power source go out the also closed or disconnection of kind of thread elements; In the stand-by power supply inlet wire element and described stand-by power supply wiring element closure or disconnection of described vacuum circuit-breaker, described stand-by power supply extraction elements and described stand-by power supply go out the also closed or disconnection of kind of thread elements.
In the technique scheme, be provided with main power source fixed head and stand-by power supply fixed head in the described housing; Described main power source wiring element and main power source extraction elements are fixedly installed on the described main power source fixed head; Described stand-by power supply wiring element and stand-by power supply extraction elements are fixedly installed on the described stand-by power supply fixed head.
In the technique scheme, the power of described railcar is manual, electronic or the torch driven mixed power.
In the technique scheme, described housing is the armored housing.
In the technique scheme, this device also comprises first transformer and second transformer; The outlet of described three main power source extraction elements is electrically connected with first transformer; The outlet of described three stand-by power supply extraction elements is electrically connected with second transformer.
In the technique scheme, described each main power source inlet wire elements, stand-by power supply inlet wire element, main power source go out kind of thread elements, stand-by power supply goes out kind of thread elements and adopts the chuck mode conductive contact, and described each main power source wiring element, stand-by power supply wiring element, main power source extraction elements, stand-by power supply extraction elements adopt cylindricality conduction contact arm.
The present invention has positive effect:
(1) among the present invention, owing to adopted a vacuum circuit-breaker to be arranged on the railcar, utilizing moving of railcar to drive vacuum circuit-breaker moves, switch thereby be implemented between main power source and the stand-by power supply, its structure is with utilizing two switch cubicles and corresponding mechanical interlocking device to compare, structure is comparatively simple, has greatly reduced cost, and is also comparatively stable, reliable on the service behaviour simultaneously.
(2) among the present invention, going out kind of thread elements and can be and also can be two on the described vacuum circuit-breaker, especially when structure was one, structure was particularly simplified, and cost is also lower, has the market competitiveness preferably.
(3) among the present invention, this device also comprises first transformer and second transformer; The outlet of described three main power source outlet contacts is electrically connected with first transformer; The outlet of described three stand-by power supply outlet contacts is electrically connected with second transformer.This structure is the preferential structure that adopts when inequality at main power voltage and backup power source voltage, utilize first transformer and second transformer that main power voltage and backup power source voltage are become the suitable voltage that direct powering load is used, effectively overcome and be difficult to the technical barrier that between the duplicate supply of different voltages, switches.
Description of drawings
Fig. 1 is the structural representation of first kind of structure of the present invention;
Fig. 2 is a kind of structural representation of intelligent duplicate supply switching device shown in Figure 1 when being in inspecting state;
Fig. 3 is second kind of structural representation of the present invention, has shown second kind of embodiment of the present invention;
The third structural representation of Fig. 4 the present invention has shown the third embodiment of the present invention.
Be labeled as shown in the accompanying drawing: housing 1, track 2, railcar 3, vacuum circuit-breaker 4, base 5, pole 6, main power source inlet wire element 61, stand-by power supply inlet wire element 62 goes out kind of thread elements 63, and main power source goes out kind of thread elements 63A, stand-by power supply goes out kind of thread elements 63B, main power source wiring element 71, stand-by power supply wiring element 72, main power source extraction elements 73A, stand-by power supply extraction elements 73B, main power source fixed head 81, stand-by power supply fixed head 82, the first transformers 91, the second transformers 92.
Embodiment
(embodiment 1)
Fig. 1 and Fig. 2 have shown first kind of embodiment of the present invention, and wherein, Fig. 1 is the structural representation of first kind of structure of the present invention; Fig. 2 is a kind of structural representation of intelligent duplicate supply switching device shown in Figure 1 when being in inspecting state.Present embodiment is a kind of intelligent duplicate supply switching device, sees Fig. 1 to Fig. 2, comprises housing 1 and track 2, the railcar 3 that can move back and forth along track 2 and vacuum circuit-breaker 4 on the railcar 3 is set; Described vacuum circuit-breaker 4 comprises base 5 and three poles 6; Described each pole 6 is provided with two inlet wire elements, two and goes out kind of thread elements 63 and a vacuum interruption mechanism that is used for break-make inlet wire element and goes out circuit between the kind of thread elements 63; Described two inlet wire elements are respectively a main power source inlet wire element 61 that is used for being electrically connected with main power circuit and a stand-by power supply inlet wire element 62 that is used for being electrically connected with stand-by power supply; Be electrically connected and be symmetricly set on the two side ends of this pole 6 between described main power source inlet wire element 61 and the stand-by power supply inlet wire element 62;
Also be provided with three main power source wiring element 71 being used for matching in the described housing 1, be used for three stand-by power supply wiring element 72 matching with each stand-by power supply inlet wire element 62 with each main power source inlet wire element 61 of vacuum circuit-breaker 4; Described main power source wiring element 71 and described main power source inlet wire element 61 are positioned at the same side of pole 6, and described stand-by power supply wiring element 72 and described stand-by power supply inlet wire element 62 are positioned at the same side of pole 6; Described railcar 3 is between main power source wiring element 71 and stand-by power supply wiring element 72; Described railcar 3 along track 2 when moving near main power source wiring element 71 directions, drive described vacuum circuit-breaker 4 towards the main power source inlet wire element 61 and described main power source wiring element 71 closures that move, finally can make described vacuum circuit-breaker 4 near main power source wiring element 71 directions; Described railcar 3 along track 2 when moving near stand-by power supply wiring element 72 directions, drive described vacuum circuit-breaker 4 towards the stand-by power supply inlet wire element 62 and described stand-by power supply wiring element 72 closures that move, finally can make described vacuum circuit-breaker 4 near stand-by power supply wiring element 72 directions.
It specifically is that main power source goes out kind of thread elements 63A and stand-by power supply goes out kind of thread elements 63B that two of described each pole 6 go out kind of thread elements 63, described main power source goes out kind of thread elements 63A and stand-by power supply goes out the two side ends that kind of thread elements 63B is symmetricly set on this pole 6, and described main power source goes out the same side that kind of thread elements 63A and described main power source inlet wire element 61 are positioned at pole 6, and described stand-by power supply goes out the same side that kind of thread elements 63B and described stand-by power supply inlet wire element 62 are positioned at pole 6.
Also be provided with in the described housing 1 and be used for going out three main power source extraction elements 73A that kind of thread elements 63A matches, being used for going out three stand-by power supply extraction elements 73B that kind of thread elements 63B matches with each stand-by power supply with each main power source of vacuum circuit-breaker 4; Described main power source extraction elements 73A and described main power source go out the same side that kind of thread elements 63A is positioned at pole 6, and described stand-by power supply extraction elements 73B and described stand-by power supply go out the same side that kind of thread elements 63B is positioned at pole 6; In the main power source inlet wire element 61 and described main power source wiring element 71 closures or disconnection of described vacuum circuit-breaker 4, described main power source extraction elements 73A and described main power source go out the also closed or disconnection of kind of thread elements 63A; In the stand-by power supply inlet wire element 62 and described stand-by power supply wiring element 72 closures or disconnection of described vacuum circuit-breaker 4, described stand-by power supply extraction elements 73B and described stand-by power supply go out the also closed or disconnection of kind of thread elements 63B.
Be provided with main power source fixed head 81 and stand-by power supply fixed head 82 in the described housing 1; Described main power source wiring element 71 and main power source extraction elements 73A are fixedly installed on the described main power source fixed head 81; Described stand-by power supply wiring element 72 and stand-by power supply extraction elements 73B are fixedly installed on the described stand-by power supply fixed head 82.
The power of described railcar 3 in concrete practice, also can adopt electronic or torch driven mixed power for power manually is provided.
Described each main power source inlet wire element 61 element in the present embodiment, stand-by power supply inlet wire element 62, main power source go out kind of thread elements 63A, stand-by power supply goes out kind of thread elements 63B and adopts the chuck mode conductive contact, and described each main power source wiring element 71, stand-by power supply wiring element 72, main power source extraction elements 73A, stand-by power supply extraction elements 73B adopt cylindricality conduction contact arm.
See shown in Figure 2, the present invention can utilize railcar to be convenient to stop in orbit advantage, present embodiment can be made the power supply change-over device of three stations, for example vacuum circuit-breaker is rested in the middle of the track, logical main power source and stand-by power supply all disconnect, so that vacuum circuit-breaker is overhauled.
(embodiment 2)
Fig. 3 is second kind of structural representation of the present invention, has shown second kind of embodiment of the present invention.
Present embodiment is substantially the same manner as Example 1, and difference is: this device also comprises first transformer 91 and second transformer 92; The outlet of described three main power source extraction elements 73A is electrically connected with first transformer 91; The outlet of described three stand-by power supply extraction elements 73B is electrically connected with second transformer 92.
Present embodiment is owing to also comprise first transformer and second transformer; The outlet of described three main power source outlet contacts is electrically connected with first transformer; The outlet of described three stand-by power supply outlet contacts is electrically connected with second transformer.This structure is the preferential structure that adopts when inequality at main power voltage and backup power source voltage, utilize first transformer and second transformer that main power voltage and backup power source voltage are become the suitable voltage that direct powering load is used, effectively overcome and be difficult to the technical barrier that between the duplicate supply of different voltages, switches.
(embodiment 3)
The third structural representation of Fig. 4 the present invention has shown the third embodiment of the present invention.
Present embodiment is substantially the same manner as Example 1, difference is: the vacuum circuit-breaker of present embodiment only is provided with three and goes out kind of thread elements 63, simultaneously in the housing main power source extraction elements and stand-by power supply extraction elements are set no longer also, during use with extraneous cable directly with go out kind of thread elements accordingly and be electrically connected; Structure is particularly simplified, and cost is also lower, has the market competitiveness preferably.
(1) among the embodiment 1 to embodiment 3, owing to adopted a vacuum circuit-breaker to be arranged on the railcar, utilizing moving of railcar to drive vacuum circuit-breaker moves, switch thereby be implemented between main power source and the stand-by power supply, its structure is with utilizing two switch cubicles and corresponding mechanical interlocking device to compare, structure is comparatively simple, has greatly reduced cost, and is also comparatively stable, reliable on the service behaviour simultaneously.
Obviously, the above embodiment of the present invention only is for example of the present invention clearly is described, and is not to be qualification to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And these belong to conspicuous variation or the change that spirit of the present invention extended out and still are among protection scope of the present invention.
Claims (9)
1. intelligent duplicate supply switching device comprises housing (1) and track (2), the railcar (3) that can move back and forth along track (2) and a vacuum circuit-breaker (4) on the railcar (3) is set; It is characterized in that:
Described vacuum circuit-breaker (4) is provided with six inlet wire elements, three or six and goes out kind of thread elements (63) and a vacuum interruption mechanism that is used for break-make inlet wire element and goes out circuit between the kind of thread elements (63); Described inlet wire element is respectively three main power source inlet wire elements (61) that are used for being electrically connected with main power circuit and three the stand-by power supply inlet wire elements (62) that are used for being electrically connected with stand-by power supply;
Be electrically connected and be symmetricly set on the two side ends of this described vacuum circuit-breaker (4) between described each a main power source inlet wire element (61) and the corresponding stand-by power supply inlet wire element (62);
Also be provided with three main power source wiring element (71) of being used for matching in the described housing (1), be used for three stand-by power supply wiring element (72) of matching with each stand-by power supply inlet wire element (62) with each main power source inlet wire element (61) of vacuum circuit-breaker (4); Described main power source wiring element (71) and described main power source inlet wire element (61) are positioned at the same side of vacuum circuit-breaker (4), and described stand-by power supply wiring element (72) and described stand-by power supply inlet wire element (62) are positioned at the same side of vacuum circuit-breaker (4);
Described railcar (3) is positioned between main power source wiring element (71) and the stand-by power supply wiring element (72);
Described railcar (3) along track (2) towards near main power source wiring element (71) when direction moves, drive described vacuum circuit-breaker (4) towards main power source inlet wire element (61) that moves, finally can make described vacuum circuit-breaker (4) near main power source wiring element (71) direction and described main power source wiring element (71) closure;
Described railcar (3) along track (2) towards near stand-by power supply wiring element (72) when direction moves, drive described vacuum circuit-breaker (4) towards stand-by power supply inlet wire element (62) that moves, finally can make described vacuum circuit-breaker (4) near stand-by power supply wiring element (72) direction and described stand-by power supply wiring element (72) closure.
2. intelligent duplicate supply switching device according to claim 1 is characterized in that: described vacuum circuit-breaker comprises base (5) and three poles (6); Be equipped with a main power source inlet wire element (61) and a stand-by power supply inlet wire element (62) on described each pole (6), described main power source wiring element (71) and described main power source inlet wire element (61) are positioned at the same side of this pole (6), and described stand-by power supply wiring element (72) and described stand-by power supply inlet wire element (62) are positioned at the same side of this pole (6).
3. intelligent duplicate supply switching device according to claim 2, it is characterized in that: described each pole (6) is provided with two and goes out kind of thread elements (63), specifically be that main power source goes out kind of thread elements (63A) and stand-by power supply goes out kind of thread elements (63B), described main power source goes out kind of thread elements (63A) and stand-by power supply goes out the two side ends that kind of thread elements (63B) is symmetricly set on this pole (6), and described main power source goes out the same side that kind of thread elements (63A) and described main power source inlet wire element (61) are positioned at pole (6), and described stand-by power supply goes out the same side that kind of thread elements (63B) and described stand-by power supply inlet wire element (62) are positioned at pole (6).
4. intelligent duplicate supply switching device according to claim 3 is characterized in that: also be provided with in the described housing (1) and be used for going out three main power source extraction elements that kind of thread elements (63A) matches with each main power source of vacuum circuit-breaker (4)
(73A), be used for going out three stand-by power supply extraction elements (73B) that kind of thread elements (63B) matches with each stand-by power supply; Described main power source extraction elements (73A) goes out the same side that kind of thread elements (63A) is positioned at pole (6) with described main power source, and described stand-by power supply extraction elements (73B) goes out the same side that kind of thread elements (63B) is positioned at pole (6) with described stand-by power supply;
In the main power source inlet wire element (61) and described main power source wiring element (71) closure or disconnection of described vacuum circuit-breaker (4), described main power source extraction elements (73A) goes out the also closed or disconnection of kind of thread elements (63A) with described main power source; In the stand-by power supply inlet wire element (62) and described stand-by power supply wiring element (72) closure or disconnection of described vacuum circuit-breaker (4), described stand-by power supply extraction elements (73B) goes out the also closed or disconnection of kind of thread elements (63B) with described stand-by power supply.
5. intelligent duplicate supply switching device according to claim 4 is characterized in that: be provided with main power source fixed head (81) and stand-by power supply fixed head (82) in the described housing (1); Described main power source wiring element (71) and main power source extraction elements (73A) are fixedly installed on the described main power source fixed head (81); Described stand-by power supply wiring element (72) and stand-by power supply extraction elements (73B) are fixedly installed on the described stand-by power supply fixed head (82).
6. intelligent duplicate supply switching device according to claim 1 is characterized in that: the power of described railcar (3) is manual, electronic or the torch driven mixed power.
7. intelligent duplicate supply switching device according to claim 1 is characterized in that: described housing (1) is armored housing (1).
8. intelligent duplicate supply switching device according to claim 4 is characterized in that: this device also comprises first transformer (91) and second transformer (92); The outlet of described three main power source extraction elements (73A) is electrically connected with first transformer (91); The outlet of described three stand-by power supply extraction elements (73B) is electrically connected with second transformer (92).
9. intelligent duplicate supply switching device according to claim 4, it is characterized in that: described each main power source inlet wire element (61), stand-by power supply inlet wire element (62), main power source go out kind of thread elements (63A), stand-by power supply goes out kind of thread elements (63B) and adopts the chuck mode conductive contact, and described each main power source wiring element (71), stand-by power supply wiring element (72), main power source extraction elements (73A), stand-by power supply extraction elements (73B) adopt cylindricality conduction contact arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101810405A CN101431218B (en) | 2008-11-21 | 2008-11-21 | Intelligent duplicate supply switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101810405A CN101431218B (en) | 2008-11-21 | 2008-11-21 | Intelligent duplicate supply switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101431218A CN101431218A (en) | 2009-05-13 |
| CN101431218B true CN101431218B (en) | 2011-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101810405A Expired - Fee Related CN101431218B (en) | 2008-11-21 | 2008-11-21 | Intelligent duplicate supply switching device |
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| CN (1) | CN101431218B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102117707B (en) * | 2011-03-03 | 2013-10-16 | 深圳市泰永电气科技有限公司 | Dual-power bypass switch device and switch electric appliance using same |
| CN102324783B (en) * | 2011-10-11 | 2013-08-14 | 温州大学 | Intelligent switching device for power grid |
| CN102355050B (en) * | 2011-10-12 | 2013-08-14 | 温州大学 | Intelligent switching device of electric network |
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2008
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| CN101431218A (en) | 2009-05-13 |
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Owner name: HONGXIU ELECTRIC CO., LTD. Free format text: FORMER OWNER: ZHENG WENXIU Effective date: 20121204 |
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