CN102386675B - Automatic changeover switch - Google Patents
Automatic changeover switch Download PDFInfo
- Publication number
- CN102386675B CN102386675B CN201110380130.9A CN201110380130A CN102386675B CN 102386675 B CN102386675 B CN 102386675B CN 201110380130 A CN201110380130 A CN 201110380130A CN 102386675 B CN102386675 B CN 102386675B
- Authority
- CN
- China
- Prior art keywords
- power supply
- switch
- stand
- controller
- carried out
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
Landscapes
- Stand-By Power Supply Arrangements (AREA)
- Keying Circuit Devices (AREA)
Abstract
The invention discloses an automatic changeover switch. The automatic changeover switch comprises an actuating mechanism, a driving device, a controller, as well as a frequently-used power supply executing switch and a stand-by power supply executing switch which are respectively connected with a frequently-used power supply and a stand-by power supply, wherein the controller is electrically connected with the driving device; the driving device drives the actuating mechanism to control the closing and the opening of the frequently-used power supply executing switch and the stand-by power supply executing switch according to the control commands of the controller, so as to achieve automatic changeover between the frequently-used power supply executing switch and the stand-by power supply executing switch; the frequently-used power supply executing switch, as well as the stand-by power supply executing switch, is provided with at least one auxiliary contact terminal connected with the controller, and the controller can obtain the closing/opening states of the frequently-used power supply executing switch and the stand-by power supply executing switch according to the signals of the auxiliary contact terminal; the automatic changeover switch further comprises at least one detection device connected with the controller, and a triggering device; and the triggering device acts when the automatic changeover switch is positioned in a dual division position. The invention can avoid the problem of short circuit of double power supplies in case of the breakdown of the automatic changeover switch.
Description
Technical field
The present invention relates to a kind of automatic change-over, belong to low-voltage electrical technology.
Background technology
Automatic change-over, is mainly used in important power supply place ，Dang mono-road power supply and goes wrong and can not continue as load equipment power supply and time be switched to another road power supply, thus the normal operation of proof load equipment.In the handoff procedure of automatic change-over, in order to prevent from carrying out the short circuit that switch misoperation causes two-way power supply, at present, part automatic change-over only has mechanical interlocks, when mechanical interlocks makes mechanical interlocks lose efficacy because mechanical reason or circuit breaker handle fracture, automatic change-over cannot disconnect execution switch by carrying out the handle of switch, if now Jiang Yi road electrical source exchange is to another road power supply, can make two-way power supply be short-circuited, produce great accident.In view of this, existing automatic change-over has increased electrical interlocks on the basis of mechanical interlocking, but this electrical interlock is in-problem, closed two-way power supply when it can only guarantee that automatic change-over is different in normal running, when automatic change-over self goes wrong, as when carrying out switch knob and fractureing or carry out switch contact and stick together, automatic change-over cannot disconnect execution switch by carrying out the handle of switch, if now Jiang Yi road electrical source exchange is to another road power supply, still can make two-way power supply be short-circuited, produce great accident and economic loss.Equally, when the contact of execution switch sticks together, also there will be same problem.
Summary of the invention
Technical problem to be solved by this invention is to overcome the existing potential safety hazard of prior art, a kind of automatic change-over is provided, for example, when automatic change-over self exists fault (carry out switch knob fractures or contact adhesion), the continuation that can automatically stop switching action is carried out.
Automatic change-over of the present invention, comprises operating mechanism, drive unit, controller, and the conventional power supply being connected with conventional, stand-by power supply is respectively carried out switch, stand-by power supply is carried out switch; Controller is electrically connected to drive unit; Drive unit is controlled conventional power supply according to the control command band pneumatic operating mechanism of controller and is carried out switch and stand-by power supply and carry out closing minute of switch, realize commonly use, the automatic conversion between stand-by power supply; Described conventional power supply is carried out switch and is carried out with stand-by power supply the auxiliary contact that switch is connected with described controller with at least one respectively, and controller can be carried out according to the conventional power supply of described auxiliary contact signal acquisition the close/minute state of switch and stand-by power supply execution switch; It is characterized in that, described automatic change-over also comprises the checkout gear that at least one is connected with described controller, and a trigger equipment; Described trigger equipment triggers described checkout gear action during in two minutes positions at automatic change-over.
Preferably, described checkout gear and trigger equipment are all arranged on operating mechanism.
Preferably, described drive unit is reversible electric machine, and described checkout gear is sensitive switch.
Further, described operating mechanism comprises:
Left slider and right slide block, be respectively used to drive conventional power supply to carry out switch and stand-by power supply to carry out switch and close/minute;
Rotating disk, it is connected with described reversible electric machine and can under reversible electric machine drives, rotates;
Left slider driving shaft, right slider-actuated axle, be individually fixed in described rotating disk both sides;
Described trigger equipment is arranged on rotating disk, and when rotating disk goes to automatic change-over in two minutes positions, this trigger equipment triggers described sensitive switch action.
Adopt above optimal technical scheme can improve the reliability of automatic change-over of the present invention.
The controller of above-mentioned automatic change-over can be carried out by the conventional power supply of auxiliary contact signal Real-time Obtaining the actual minute state that closes of switch and stand-by power supply execution switch, and judge in conjunction with sensitive switch signal whether automatic change-over itself breaks down, the conventional power supply that need disconnect when received the triggering signal of sensitive switch in transfer process is carried out switch or stand-by power supply, and to carry out switch auxiliary contact be still closure state, illustrate that needing the conventional power supply execution switch of disconnection or stand-by power supply execution switch self to produce handle fractures, the faults such as contact adhesion, controller is controlled immediately reversible electric machine and is quit work, thereby prevent in situation that conventional power supply/stand-by power supply do not disconnect, the accident of stand-by power supply/two-way power supply short circuit that conventional power connection produces.
Accompanying drawing explanation
Fig. 1 is automatic change-over schematic diagram of the present invention;
Fig. 2 is two minutes position views of automatic change-over of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is elaborated:
A preferred embodiment of automatic change-over of the present invention, as shown in Figure 1 and Figure 2, comprise that be connected with conventional power supply Un, stand-by power supply Ur respectively two conventional, stand-by power supplies carry out switch Qn, Qr, operating mechanism 4, reversible electric machine 9, controller 6 and conventional power supply be installed and carried out the base plate 3 that switch Qn, stand-by power supply carry out switch Qr, operating mechanism 4, reversible electric machine 9 and controller 6; Operating mechanism 4 comprises a sensitive switch 41, rotating disk 42, left slider 43, right slide block 44, and left slider driving shaft 45, right slider-actuated axle 46, is provided with rotating disk projection 421 on rotating disk 42, and sensitive switch 41 is connected with controller 6 signals; Conventional, stand-by power supply is carried out the auxiliary contact (Fn, Fr) that switch (Qn, Qr) is electrically connected to controller 6 with at least one respectively.Controller 6 detects conventional power supply Un, the voltage signal of stand-by power supply Ur, be used for judging overvoltage, under-voltage or decompression conventional, stand-by power supply (Un, Ur), detect auxiliary contact (Fn, Fr) signal conventional, that stand-by power supply is carried out switch (Qn, Qr), the splitting or integrating state normal to obtain, stand-by power supply is carried out switch (Qn, Qr), detect the signal of sensitive switch 41 simultaneously, then by reversible electric machine 9 band pneumatic operating mechanisms 4, control closing minute of normal, stand-by power supply execution switch (Qn, Qr) after logic judgement.
As shown in Figure 2, the controller 6 of automatic change-over is controlled the rotation of reversible electric machine 9, the axle 91 of reversible electric machine 9 drives rotating disk 42 to rotate, left slider driving shaft 45 on rotating disk 42 drives left slider 43 to control conventional power supply and carries out the lever operated of switch Qn, thereby control conventional power supply and carry out closing minute of switch Qn, right slider-actuated axle on rotating disk 42 46 drives right slide block 44 to control stand-by power supplies and carries out the lever operated of switch Qr, thereby control stand-by power supply, carries out closing minute of switch Qr.
Automatic change-over has three positions, commonly use position, two minutes positions, spare space, under automatic change-over non-failure conditions, it is that state, the stand-by power supply closing carried out the state of switch for dividing that the conventional power supply corresponding to conventional position of automatic change-over carried out switch, within two minutes, conventional power supply execution switch corresponding to position is that state, the stand-by power supply execution switch dividing is the state dividing, and conventional power supply execution switch corresponding to spare space is that state, the stand-by power supply execution switch dividing is the state closing.But while there is the failure conditions such as handle fracture when automatic change-over, the conventional power supplys execution switch corresponding to pair minute positions possibility of automatic change-over is that state, the stand-by power supply execution switch closing is the state dividing, or corresponding conventional power supply execution switch is that state, the stand-by power supply execution switch dividing is the state closing.
For example, when conventional power supply is carried out switch Qn in closing position, stand-by power supply is carried out switch Qr in open position, if now conventional power supply Un overvoltage, under-voltage or decompression, controller 6 detects conventional power supply Un overvoltage, under-voltage or decompression, by reversible electric machine 9 band pneumatic operating mechanisms 4, attempt the conventional power supply of disjunction and carry out switch Qn, if but the handle that now conventional power supply is carried out switch Qn fractures, and conventional power supply is carried out switch Qn still in "on" position, now cannot by handle, commonly use the separating brake that power supply is carried out switch Qn again, but rotating disk 42 still can rotate under the drive of reversible electric machine 9, in this case, when rotating disk 42 forwards centre position (shown position to, be two minute positions of automatic change-over, now corresponding conventional power supply is carried out the still state for closing of switch Qn, stand-by power supply is carried out the state of switch Qr for dividing.) time while depressing sensitive switch 41 by rotating disk projection 421, the auxiliary contact Fn signal that controller 6 detects conventional power supply execution switch Qn is closure signal, when sensitive switch 41 signals are also closure signal, interrupt immediately the power supply of reversible electric machine 9, no longer toward standby direction, rotate, do not carry out the closing operation that stand-by power supply is carried out switch Qr, effectively prevented that stand-by power supply from carrying out that switch closes a floodgate and the short circuit that occurs two-way power supply, with Time Controller 6, carry out fault alarm, reminding user is processed.Otherwise, when stand-by power supply is carried out switch Qr in closing position, conventional power supply is carried out switch Qn in open position, if the now under-voltage or overvoltage of stand-by power supply Ur, when controller 6 detects stand-by power supply and carries out the closure signal of auxiliary contact Fr of switch Qr and the closure signal of sensitive switch 41, can interrupt the power supply of reversible electric machine 9 equally, no longer toward conventional direction, rotate, effectively prevented that conventional power supply from carrying out that switch closes a floodgate and the short circuit that occurs two-way power supply, with Time Controller 6, carry out fault alarm, reminding user is processed.Transfer process when main contact normal, that stand-by power supply is carried out switch (Qn, Qr) sticks together is identical with the transfer process that above-mentioned execution switch knob fractures, and repeats no more herein.
Claims (2)
1. an automatic change-over, comprises operating mechanism, drive unit, controller, and the conventional power supply being connected with conventional, stand-by power supply is respectively carried out switch, stand-by power supply is carried out switch; Controller is electrically connected to drive unit; Drive unit is controlled conventional power supply according to the control command band pneumatic operating mechanism of controller and is carried out switch and stand-by power supply and carry out closing minute of switch, realize commonly use, the automatic conversion between stand-by power supply; Described conventional power supply is carried out switch and is carried out with stand-by power supply the auxiliary contact that switch is connected with described controller with at least one respectively, and controller can be carried out according to the conventional power supply of described auxiliary contact signal acquisition the close/minute state of switch and stand-by power supply execution switch; It is characterized in that, described automatic change-over also comprises the checkout gear that at least one is connected with described controller, and a trigger equipment; Described trigger equipment is at automatic change-over during in two minutes positions, and under automatic change-over non-failure conditions, conventional power supply is carried out switch and stand-by power supply and carried out the state that switch is minute, triggers described checkout gear and moves; Described drive unit is reversible electric machine, and described checkout gear is sensitive switch; Described operating mechanism comprises:
Left slider and right slide block, be respectively used to drive conventional power supply to carry out switch and stand-by power supply to carry out switch and close/minute;
Rotating disk, it is connected with described reversible electric machine and can under reversible electric machine drives, rotates;
Left slider driving shaft, right slider-actuated axle, be individually fixed in described rotating disk both sides;
Described trigger equipment is arranged on rotating disk, and when rotating disk goes to automatic change-over in two minutes positions, this trigger equipment triggers described sensitive switch action;
Described trigger equipment is the projection being arranged on described rotating disk;
The controller of described automatic change-over can be carried out by the conventional power supply of auxiliary contact signal Real-time Obtaining the actual minute state that closes of switch and stand-by power supply execution switch, and judges in conjunction with sensitive switch signal whether automatic change-over itself breaks down.
2. automatic change-over as claimed in claim 1, is characterized in that, described checkout gear and trigger equipment are all arranged on operating mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110380130.9A CN102386675B (en) | 2011-11-25 | 2011-11-25 | Automatic changeover switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110380130.9A CN102386675B (en) | 2011-11-25 | 2011-11-25 | Automatic changeover switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102386675A CN102386675A (en) | 2012-03-21 |
| CN102386675B true CN102386675B (en) | 2014-01-29 |
Family
ID=45825775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110380130.9A Active CN102386675B (en) | 2011-11-25 | 2011-11-25 | Automatic changeover switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102386675B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107845519B (en) * | 2017-12-04 | 2019-07-05 | 常熟开关制造有限公司(原常熟开关厂） | Double power supply automatic transfer switch and its control method |
| CN110211821A (en) * | 2019-03-21 | 2019-09-06 | 杭州之江开关股份有限公司 | A kind of operating mechanism and its switching control method of automatic change-over |
| CN111785548B (en) * | 2019-04-04 | 2023-03-24 | 施耐德电器工业公司 | Electrical interlocking of dual-power automatic transfer switch and dual-power automatic transfer switch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101783252B (en) * | 2009-01-16 | 2012-12-12 | 西门子公司 | Automatic transfer switching electric appliance and method for judging and treating failure thereof |
-
2011
- 2011-11-25 CN CN201110380130.9A patent/CN102386675B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102386675A (en) | 2012-03-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102497004B (en) | Automatic change-over switch control method | |
| CN104637746B (en) | Circuit breaker | |
| CN201374583Y (en) | Dual-power automatic change-over switch | |
| CN107994680A (en) | Intelligent high-voltage dual power automatic switching control equipment | |
| CN105895462A (en) | Dual power supply changeover switch with mechanical tripping interlock function | |
| CN102386675B (en) | Automatic changeover switch | |
| WO2017202327A1 (en) | Star-delta switching starter for three-phase alternating-current motor | |
| CN105355518A (en) | Miniature circuit breaker control device and method applying device to control circuit breaker | |
| CN203192640U (en) | Interlocking device of high-voltage stationary cabinet | |
| CN109192569B (en) | Control method for locking between three-station grounding switch and breaker opening | |
| CN112185771A (en) | Automatic switch structure of power circuit breaker and control system thereof | |
| CN107965238B (en) | Intelligent cabinet protection door and control method | |
| CN207283151U (en) | A kind of cement milling main motor interlocking protective system | |
| CN207664705U (en) | The reversing braking module of twin-power switch control system | |
| CN205828320U (en) | A kind of dual-power transfer switch with mechanical trip interlock function | |
| CN104320039A (en) | Drive control method and device of final dusting high-voltage motor of steel mill | |
| CN104538261A (en) | Quick-acting bypass device | |
| AU2019420409B2 (en) | Switch | |
| CN103682999A (en) | Switch cabinet opening locking state distinguishing system | |
| CN201797302U (en) | Protective device for lifting of heavy crown block | |
| CN203521293U (en) | Automatic-switching central-positioned withdrawable-type vacuum circuit breaker | |
| CN103166538A (en) | Reversible magnetic starter of general power-driven multi-turn execution mechanism | |
| CN104601048A (en) | Operating mechanism of motor starter capable of performing quick breaking | |
| CN202059210U (en) | Electromagnetic brake safe switching apparatus | |
| CN104616938A (en) | Miniature circuit breaker and operation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |