CN101266894A - An intelligent high-voltage dual power conversion switch - Google Patents
An intelligent high-voltage dual power conversion switch Download PDFInfo
- Publication number
- CN101266894A CN101266894A CNA2008100602903A CN200810060290A CN101266894A CN 101266894 A CN101266894 A CN 101266894A CN A2008100602903 A CNA2008100602903 A CN A2008100602903A CN 200810060290 A CN200810060290 A CN 200810060290A CN 101266894 A CN101266894 A CN 101266894A
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- power supply
- contact
- switching
- contact knife
- intelligent high
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention discloses an intelligent high-pressure dual power supply shift switch, comprising a gas seal box, three primary power supply terminals disposed on the gas seal box, three standby power supply terminals and three load terminals, and a power supply shift mechanism set in the gas seal box; characterized that: the switch also comprises a three-phase vacuum breaker device, the three-phase vacuum breaker device comprises three vacuum interrupters, three moving contacts, three static contact and a operation mechanism; each of the moving contact/static contact is connected with the corresponding primary power supply terminal/standby power supply terminal via the power supply shift mechanism, each of the static contact/moving contact is connected with a corresponding load terminal. The invention has the advantages of simple structure, low costs, suitable for eliminating potential security hazard effectively.
Description
Technical field
The invention belongs to high-voltage electrical apparatus switching technique field, be specifically related to a kind of intelligent high-voltage dual power conversion switch.
Background technology
At present, in order to improve the reliability of power supply, a large amount of dual power supply circuits (two supply line generally is a circuit on power system, and from reserve line) that adopt in the electric power system are when a line power breaks down, by another line powering.Need by control device, indoor will the employing is no less than two high-tension switch cabinets for this reason, and the open air is no less than high-voltage switch gear on two important actors, could realize selecting the requirement of supply line.This control mode has not only increased user's equipment and operating cost, but also the accident of power supply hidden danger that lies dormant.High-voltage switch gear on two and the above high-tension switch cabinet/post is difficult to realize the mechanical chain between the high-voltage switch gear on high-tension switch cabinet/post.It is generally acknowledged that the electrical interlocks that control device is only arranged is insecure,, will lead to major accident in case duplicate supply feed simultaneously all might appear in control device fault or operations staff's misoperation.
Also have at present to adopt and on vacuum circuit-breaker, install the high-voltage dual power conversion equipment that double-throw disconnecting switch is formed additional, though this kind mode has realized high-voltage dual power and has had electrical interlocks and mechanical chain when automaticallying switch, reduced the two-way high pressure possibility of feed simultaneously, it is present more satisfactory high-voltage dual power switching device shifter, but also there is drawback, the isolating switch of its double-throw is directly exposed in the air, along with number of times that uses and the increase of time, the continuous oxidation of contact surface meeting, cause contact resistance to increase conductive capability and reduce, contact heating easily such as burns out at shortcoming.In addition, owing to be to adopt isolating switch to switch actuator, because electric power in use is sternly to forbid the on-load branch, close isolating switch as power supply; So could use isolating switch to finish switching motion after must making the vacuum circuit-breaker separating brake cut off load earlier by controller before each the switching.In case controller breaks down, under the situation that does not disconnect vacuum circuit-breaker, the isolating switch on-load just carries out switching motion, and powerful load instantaneous outage voltage can be easily with air breakdown, cause arc short-circuit, cause accidents such as personnel's equipment damage and line powering fault.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, cost is lower and the intelligent high-voltage dual power conversion switch that can effectively eliminate safe hidden trouble.
The technical scheme that realizes the object of the invention is: a kind of intelligent high-voltage dual power conversion switch, comprise pressure box, be arranged on three main power source binding posts on the pressure box casing, three stand-by power supply binding posts and three load wiring posts, and be arranged on the power supply switching mechanism in the pressure box; Its design feature is: this switch also comprises a three-phase vacuum breaker device, and described three-phase vacuum breaker device comprises three vacuum interrupters, three moving contacts, three fixed contacts and an operating mechanism; Described each moving contact/fixed contact is electrically connected with a corresponding main power source binding post/stand-by power supply binding post by the power supply switching mechanism, and described each fixed contact/moving contact is electrically connected with a corresponding load wiring post.
In the technique scheme, the outer surface of the fixed contact of described each vacuum circuit-breaker is provided with insulated column, and is arranged on the box outer surface directly as the load wiring post.
In the technique scheme, described operating mechanism comprises driving main shaft and the drive rod that is used to be connected driving main shaft and moving contact.
In the technique scheme, described power supply switching mechanism comprises a switching main shaft, can be switched that main shaft drives and three switching contact knifes turning an angle.
In the technique scheme, described each switching contact knife is the V-type contact knife, and described switching mechanism also comprises and being used for as the contact knife rotating shaft of each V-type contact knife rotary middle spindle and the insulated tension pole that is used to connect switching main shaft and each V-type contact knife.
In the technique scheme, described each switching contact knife is the yi word pattern contact knife, and described each switching contact knife is fixed on and switches on the main shaft.
In the technique scheme, be filled with sulfur hexafluoride gas in the described pressure box.
In the technique scheme, be provided with in the described pressure box and be used for the metal runners that is electrically connected with the moving contact/fixed contact of vacuum circuit-breaker, each switching contact knife in the described power supply switching mechanism all has along switching symmetrically arranged two the contact knife arms in spindle axis center, the contact knife arm of one side is used for being electrically connected with main power source binding post or stand-by power supply binding post, and the contact knife arm of opposite side can slide on described metal runners.
The present invention has positive effect:
(1) the present invention can effectively protect circuit and power supply switching mechanism in the duplicate supply conversion by adding vacuum circuit-breaker, effectively eliminates safe hidden trouble, and prolongs its electric life.(2) be filled with sulfur hexafluoride gas in the pressure box of the present invention, have arc quenching effect preferably, effectively guarantee the electric life of switching contact knife and power-line terminal.(3) the present invention compares with the high-voltage alternating three-phase double power-supply load swith of Chinese patent 200510061855.6 disclosed a kind of sulphur hexafluoride formulas, reduced by a switching main shaft, by three the switching contact knifes and the mechanical interlocking device of this switching main shaft, simplified its structure greatly; Even product of the present invention in addition is damaged for some reason, owing to only have one group of switching contact knife, and can only be electrically connected with one group of power-line terminal at most, so the duplicate supply accident of feed simultaneously can not take place, effectively eliminate safe hidden trouble.(4) the present invention also can realize overload, overvoltage, phase shortage and three-phase imbalance protection by additional conventional current transformer, voltage transformer, zero-sequence transformer and control circuit, effectively ensures the safe handling of load appliance.
Description of drawings
Fig. 1 is the structural representation of first kind of structure of the present invention;
Fig. 2 is the structural representation of second kind of structure of the present invention;
Fig. 3 is the structural representation of the third structure of the present invention;
Fig. 4 is the structural representation of intelligent high-voltage dual power conversion switch shown in Figure 3 when being in the main power source power supply state.
Reference numeral is: draw together pressure box 1, casing 11, main power source binding post 2, stand-by power supply binding post 3, load wiring post 4, power supply switching mechanism 5 switches main shaft 51, switching contact knife 52, contact knife arm 521, contact knife arm 522, contact knife rotating shaft 53, insulated tension pole 54, three-phase vacuum breaker device 6, vacuum interrupter 61, moving contact 62, fixed contact 63, insulated column 631, operating mechanism 64, driving main shaft 641, drive rod 642, metal runners 8.
Embodiment
(embodiment 1)
Fig. 1 is the structural representation of first kind of structure of the present invention, has shown first kind of embodiment of the present invention.
Present embodiment is a kind of intelligent high-voltage dual power conversion switch, see Fig. 1, comprise pressure box 1, be arranged on three the main power source binding posts 2 on the pressure box casing 11, three stand-by power supply binding posts 3 and three load wiring posts 4, and be arranged on the power supply switching mechanism 5 in the pressure box 1; It is characterized in that: this switch also comprises a three-phase vacuum breaker device 6, described three-phase vacuum breaker device 6 comprises three vacuum interrupters 61, three moving contacts 62, three fixed contacts 63 and operating mechanisms 64, described each moving contact 62/ fixed contact 63 is electrically connected with a corresponding switching contact knife 6, and described each fixed contact 63/ moving contact 62 is electrically connected with a corresponding load wiring post 4.The outer surface of the fixed contact 63 of described each vacuum circuit-breaker is provided with insulated column 631, and is arranged on casing 11 outer surfaces directly as load wiring post 4.Described operating mechanism 64 comprises driving main shaft 641 and the drive rod 642 that is used to be connected driving main shaft 641 and moving contact 62.Described power supply switching mechanism 5 comprises a switching main shaft 51, can be switched that main shaft 51 drives and three switching contact knifes 52 turning an angle, and described each switching contact knife 52 is yi word pattern contact knifes, and described each switching contact knife 52 is fixed on and switches on the main shaft 51.Be filled with sulfur hexafluoride gas in the described pressure box 1.
(embodiment 2)
Fig. 2 is the structural representation of second kind of structure of the present invention, has shown second kind of embodiment of the present invention.
Present embodiment is substantially the same manner as Example 1, difference is: see Fig. 2, described each switching contact knife 52 is V-type contact knifes, and described switching mechanism 5 also comprises and being used for as the contact knife rotating shaft 53 of each V-type contact knife rotary middle spindle and the insulated tension pole 54 that is used to connect switching main shaft 51 and each V-type contact knife.
Common V-type contact knife has " three stations " and " two stations " two kinds, described " three stations " V-type contact knife is meant on first station that contact knife 52 can rest on main power source binding post 2 is electrically connected, with on second station that stand-by power supply binding post 3 is electrically connected and be positioned at main power source binding post 2 hit exactly with stand-by power supply binding post 3, neither be electrically connected with main power source binding post 2, also not with the 3rd station that stand-by power supply binding post 3 is electrically connected on the V-type contact knife of (being position shown in Figure 5).Described " two stations " is meant and can only rests on foregoing first station and second station, can not rest on the V-type contact knife of the switching mechanism on the 3rd station.Present embodiment is a kind of three station V-type contact knifes, in concrete practice, also can adopt two station V-type contact knifes certainly.Described each V-arrangement contact knife 52 directly is electrically connected with a corresponding load wiring post 4.
(embodiment 3)
Fig. 3 and Fig. 4 have shown the third embodiment of the present invention, and wherein Fig. 3 is the structural representation of the third structure of the present invention, and Fig. 4 is the structural representation of intelligent high-voltage dual power conversion switch shown in Figure 3 when being in the main power source power supply state.
Present embodiment is substantially the same manner as Example 1, difference is: see Fig. 3 and Fig. 4, pressure box 1 in the present embodiment and the power supply switching mechanism 5 that is arranged in the pressure box 1 are different with embodiment 1 on shape and structure, the basic configuration of pressure box 1 casing of present embodiment is similar to circle, be provided with in the described pressure box 1 and be used for the metal runners 8 that is electrically connected with moving contact 62/ fixed contact 63 of vacuum circuit-breaker 6, each switching contact knife 52 in the described power supply switching mechanism 5 all has along switching symmetrically arranged two the contact knife arms in center, main shaft 51 axle center, the contact knife arm 521 of one side is used for being electrically connected with main power source binding post 2 or stand-by power supply binding post 3, the contact knife arm 522 of opposite side slides on described metal runners 8, is used to realize that the free of discontinuities with metal runners 8 is electrically connected.Adopt the structural design of present embodiment, can do volume forr a short time.
(1) by adding vacuum circuit-breaker, in the duplicate supply conversion, can effectively protect, effectively eliminate safe hidden trouble, prolong its electric life circuit and power supply switching mechanism.(2) be filled with sulfur hexafluoride gas in the pressure box, have arc quenching effect preferably, effectively guarantee the electric life of switching contact knife and power-line terminal.(3) compare with the high-voltage alternating three-phase double power-supply load swith of Chinese patent 200510061855.6 disclosed a kind of sulphur hexafluoride formulas, reduced by a switching main shaft, by three the switching contact knifes and the mechanical interlocking device of this switching main shaft, simplified its structure greatly; Even product of the present invention in addition is damaged for some reason, owing to only have one group of switching contact knife, and can only be electrically connected with one group of power-line terminal at most, so the duplicate supply accident of feed simultaneously can not take place, effectively eliminate safe hidden trouble.(4) also can realize overload, overvoltage, phase shortage and three-phase imbalance protection, effectively ensure the safe handling of load appliance by additional conventional current transformer, voltage transformer, zero-sequence transformer and control circuit.
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 (8)
1, a kind of intelligent high-voltage dual power conversion switch, comprise pressure box (1), be arranged on three main power source binding posts (2), three stand-by power supply binding posts (3) and three load wiring posts (4) on the pressure box casing (11), and be arranged on the power supply switching mechanism (5) in the pressure box (1); It is characterized in that: this switch also comprises a three-phase vacuum breaker device (6), and described three-phase vacuum breaker device (6) comprises three vacuum interrupters (61), three moving contacts (62), three fixed contacts (63) and an operating mechanism (64); Described each moving contact (62)/fixed contact (63) is electrically connected with a corresponding main power source binding post (2)/stand-by power supply binding post (3) by power supply switching mechanism (5), and described each fixed contact (63)/moving contact (62) is electrically connected with a corresponding load wiring post (4).
2, intelligent high-voltage dual power conversion switch according to claim 1, it is characterized in that: the outer surface of the fixed contact of described each vacuum circuit-breaker (63) is provided with insulated column (631), and is arranged on casing (11) outer surface directly as load wiring post (4).
3, intelligent high-voltage dual power conversion switch according to claim 1 is characterized in that: described operating mechanism (64) comprises driving main shaft (641) and the drive rod (642) that is used to be connected driving main shaft (641) and moving contact (62).
4, intelligent high-voltage dual power conversion switch according to claim 1 is characterized in that: described power supply switching mechanism (5) comprises a switching main shaft (51), can be switched that main shaft (51) drives and three switching contact knifes (52) of turning an angle.
5, intelligent high-voltage dual power conversion switch according to claim 1, it is characterized in that: described each switching contact knife (52) is the V-type contact knife, and described switching mechanism (5) also comprises and being used for as the contact knife rotating shaft (53) of each V-type contact knife rotary middle spindle and the insulated tension pole (54) that is used for connecting switching main shaft (51) and each V-type contact knife.
6, intelligent high-voltage dual power conversion switch according to claim 1 is characterized in that: described each switching contact knife (52) is the yi word pattern contact knife, and described each switching contact knife (52) is fixed on and switches on the main shaft (51).
7, intelligent high-voltage dual power conversion switch according to claim 1 is characterized in that: described pressure box is filled with sulfur hexafluoride gas in (1).
8, intelligent high-voltage dual power conversion switch according to claim 1, it is characterized in that: be provided with in the described pressure box (1) and be used for the metal runners (8) that is electrically connected with moving contact (the 62)/fixed contact (63) of vacuum circuit-breaker (6), each switching contact knife (52) in the described power supply switching mechanism (5) all has along switching symmetrically arranged two the contact knife arms in main shaft (51) center, axle center, the contact knife arm (521) of one side is used for being electrically connected with main power source binding post (2) or stand-by power supply binding post (3), and the contact knife arm (522) of opposite side can be gone up in described metal runners (8) and slide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100602903A CN101266894A (en) | 2008-04-03 | 2008-04-03 | An intelligent high-voltage dual power conversion switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100602903A CN101266894A (en) | 2008-04-03 | 2008-04-03 | An intelligent high-voltage dual power conversion switch |
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| CN101266894A true CN101266894A (en) | 2008-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008100602903A Pending CN101266894A (en) | 2008-04-03 | 2008-04-03 | An intelligent high-voltage dual power conversion switch |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101800136A (en) * | 2010-03-22 | 2010-08-11 | 郑逸扬 | Non-time difference double-power supply breaker |
| CN102254732A (en) * | 2011-06-13 | 2011-11-23 | 苏肄鹏 | High-voltage power supply quick switching method and quick switching high-voltage switch |
| CN102394197A (en) * | 2011-06-13 | 2012-03-28 | 苏肄鹏 | Combined-type high-voltage conversion switch |
| CN104201047A (en) * | 2011-06-13 | 2014-12-10 | 苏州贝腾特电子科技有限公司 | Armored combined high-voltage change-over switch with short switching time |
| CN105140060A (en) * | 2015-09-15 | 2015-12-09 | 江苏省电力公司苏州供电公司 | Low-voltage tri-modal switching apparatus |
| CN106410653A (en) * | 2016-08-13 | 2017-02-15 | 信尔德科技有限公司 | Indoor armored fixed metal-enclosed switchgear |
| CN106848909A (en) * | 2017-04-24 | 2017-06-13 | 江苏大全长江电器股份有限公司 | One kind is without isolated switchgear under bin static contact non-SF 6 gas insulative |
| CN106848908A (en) * | 2017-04-24 | 2017-06-13 | 江苏大全长江电器股份有限公司 | One kind is without bin static contact non-SF 6 gas insulative switchgear |
| CN108258474A (en) * | 2017-12-31 | 2018-07-06 | 宁波沸柴机器人科技有限公司 | A kind of power supply plug assembly |
| CN108306411A (en) * | 2018-03-27 | 2018-07-20 | 北京京人电器有限公司 | Power transfer device |
| CN110233081A (en) * | 2019-07-11 | 2019-09-13 | 广东电网有限责任公司 | Rotary high-voltage isolating switch |
| CN113593940A (en) * | 2021-07-30 | 2021-11-02 | 贵州电网有限责任公司 | Uninterrupted power access and cut-out device for power generation vehicle |
-
2008
- 2008-04-03 CN CNA2008100602903A patent/CN101266894A/en active Pending
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101800136A (en) * | 2010-03-22 | 2010-08-11 | 郑逸扬 | Non-time difference double-power supply breaker |
| CN104201047B (en) * | 2011-06-13 | 2017-01-11 | 钱才英 | Armored combined high-voltage change-over switch with short switching time |
| CN102394197A (en) * | 2011-06-13 | 2012-03-28 | 苏肄鹏 | Combined-type high-voltage conversion switch |
| CN104201040B (en) * | 2011-06-13 | 2016-05-11 | 滨州东力电力设计有限公司 | Armouring insulated type Combined-type high-voltage conversion switch |
| CN104201047A (en) * | 2011-06-13 | 2014-12-10 | 苏州贝腾特电子科技有限公司 | Armored combined high-voltage change-over switch with short switching time |
| CN104201040A (en) * | 2011-06-13 | 2014-12-10 | 苏州贝腾特电子科技有限公司 | Armored insulating combined high-voltage change-over switch |
| CN104882326A (en) * | 2011-06-13 | 2015-09-02 | 钱秀英 | High-voltage power supply fast switching method |
| CN102254732B (en) * | 2011-06-13 | 2015-10-07 | 国网山东省电力公司滨州供电公司 | High voltage source fast switch over method and high-speed switched high-voltage switch |
| CN102254732A (en) * | 2011-06-13 | 2011-11-23 | 苏肄鹏 | High-voltage power supply quick switching method and quick switching high-voltage switch |
| CN102394197B (en) * | 2011-06-13 | 2014-10-01 | 国网浙江平阳县供电有限责任公司 | Combined-type high-voltage conversion switch |
| CN105140060B (en) * | 2015-09-15 | 2017-07-07 | 江苏省电力公司苏州供电公司 | The mode of low pressure three turns cutting apparatus |
| CN105140060A (en) * | 2015-09-15 | 2015-12-09 | 江苏省电力公司苏州供电公司 | Low-voltage tri-modal switching apparatus |
| CN106410653A (en) * | 2016-08-13 | 2017-02-15 | 信尔德科技有限公司 | Indoor armored fixed metal-enclosed switchgear |
| CN106848909A (en) * | 2017-04-24 | 2017-06-13 | 江苏大全长江电器股份有限公司 | One kind is without isolated switchgear under bin static contact non-SF 6 gas insulative |
| CN106848908A (en) * | 2017-04-24 | 2017-06-13 | 江苏大全长江电器股份有限公司 | One kind is without bin static contact non-SF 6 gas insulative switchgear |
| CN108258474A (en) * | 2017-12-31 | 2018-07-06 | 宁波沸柴机器人科技有限公司 | A kind of power supply plug assembly |
| CN108306411B (en) * | 2018-03-27 | 2024-05-07 | 北京京人电器有限公司 | Power supply switching device |
| CN108306411A (en) * | 2018-03-27 | 2018-07-20 | 北京京人电器有限公司 | Power transfer device |
| CN110233081A (en) * | 2019-07-11 | 2019-09-13 | 广东电网有限责任公司 | Rotary high-voltage isolating switch |
| CN113593940A (en) * | 2021-07-30 | 2021-11-02 | 贵州电网有限责任公司 | Uninterrupted power access and cut-out device for power generation vehicle |
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Application publication date: 20080917 |