CN2713712Y - Double power supply switching arrangement - Google Patents
Double power supply switching arrangement Download PDFInfo
- Publication number
- CN2713712Y CN2713712Y CN 200420046381 CN200420046381U CN2713712Y CN 2713712 Y CN2713712 Y CN 2713712Y CN 200420046381 CN200420046381 CN 200420046381 CN 200420046381 U CN200420046381 U CN 200420046381U CN 2713712 Y CN2713712 Y CN 2713712Y
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- China
- Prior art keywords
- power supply
- circuit
- automatic controller
- socket
- switch
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- 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.)
- Expired - Fee Related
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
The utility model discloses a double power source switchover device, comprising a switching body, an automatic controller which is used for detecting the power source and phase voltage and sending out an instruction to the switching body, a socket which is used for connecting the switching body with the automatic controller. The switching body comprises two breakers, a general power switch, a standby power switch and two wire connecting terminals, wherein, the general power switch and the standby power switch are respectively connected with the two breakers which are all provided with electric operating mechanisms. A mechanical interlocking mechanism is arranged between the two electric operating mechanisms. The automatic controller is provided with a control circuit of the programmable single chip computer and inserted on the socket. The two electric operating mechanisms are separately connected with the socket by wirings. The single chip computer of the automatic controller can carry out the corresponding process according to the three-phase voltage data of the extraction, the operating status and the setting program, and the dividing or combined instruction is sent out to the electric operating mechanism according to the process result; thereby, the power supply switching function can be realized, and the reliability and the security of the power supply can be ensured.
Description
Technical field
The utility model relates to a kind of power transfer device, relates in particular to a kind of can reliably the switching between the two-way power supply, to guarantee the double-power supply switching device of power supply reliability.
Background technology
Along with the development of society, people are more and more higher to the requirement of power supply reliability, and a lot of occasions guarantee the reliability of powering with multiple power supplies, and this just needs a kind of device that reliably switch with the assurance power supply reliability between the two-way power supply.What traditional double-power supply switching device used is discrete element such as class such as resistance, electric capacity etc., has inaccurate, easy defective such as aging, has reduced the reliability of power supply.
The utility model content
The purpose of this utility model is to provide a kind of measurement, conduction and control more reliable, and the double-power supply switching device that the life-span is long is to improve the reliability of power supply.
The purpose of this utility model is achieved by the following technical programs:
A kind of double-power supply switching device that the utility model provides, comprise the switching body, this switching body comprises two circuit breakers, mains switch, Backup Power Switch and two binding posts commonly used, mains switch wherein commonly used, Backup Power Switch are connected respectively on two circuit breakers, be equipped with motor-operating mechanism on the described circuit breaker, be connected with a mechanical interlock mechanism between two motor-operating mechanisms;
It also comprises and is used to detect the power supply phase voltage and to switching the socket that body sends the automatic controller of instruction and is used to be connected switching body and automatic controller; Described automatic controller comprises power supply input and value circuit, the control circuit with programmable single chip computer and output and drive circuit, wherein the output of power supply input and value circuit connects with the input of single chip machine controlling circuit, and the output of single chip machine controlling circuit is connected with the input of output and drive circuit;
Described automatic controller is plugged on the socket, and two motor-operating mechanisms that switch on the body circuit breaker are connected on the socket by wiring respectively.
Power supply commonly used and stand-by power supply are connected on the socket by mains switch commonly used, Backup Power Switch and two binding posts on the switching body respectively and provide power supply for automatic controller in the utility model.The two-way power supply is after the processing of input of automatic controller power supply and value circuit, the phase voltage value that obtains is detected by single chip machine controlling circuit simultaneously, the supply voltage that is higher than set point one is judged to be overvoltage, what be lower than set point two then is judged under voltage, detected signal carries out logic determines by the microcomputer in the automatic controller, and result is sent separating brake or reclosing command by output and drive circuit corresponding instruction relay to the motor-operating mechanism that switches body.The motor-operating mechanism that switches on two circuit breakers of body moves according to the instruction of automatic controller, and realizes interlock by mechanical interlock mechanism.Two circuit breakers are controlled the folding of mains switch commonly used and Backup Power Switch under the driving of motor-operating mechanism and mechanical interlock mechanism, thereby realize the power supply handoff functionality.
Power supply switches and the reliability of power supply in order further to improve, and also is respectively equipped with the additional alarm annex on two circuit breakers described in the utility model, and each additional alarm annex is connected on the socket by wiring respectively.Automatic controller is selected to discern to operating state, judges normal separating brake closes a floodgate, and reports to the police by the additional alarm annex on the circuit breaker and makes corresponding processing if undesired automatic controller will send corresponding instruction.
Automatic controller is provided with different controlled function, applicable to different systems and occasion.For example, controlled function can be divided into to be hauled oneself willingly into runback (R), hauls oneself willingly into not three kinds of runbacks (S) and electrical network～generating (F), and the first two kind is applicable to electrical network～mains supply system, a kind of electrical network～electricity generation system that is applicable in back.
The utlity model has following beneficial effect: testing process is succinct, accurate, and anti-external interference ability is higher, and flexible function has improved the reliability of power supply, and cost is low, and the life-span is long.
Description of drawings
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail:
Fig. 1 switches the main body structure schematic diagram among the utility model embodiment;
Fig. 2 is the structural representation of circuit breaker among the utility model embodiment;
Fig. 3 is the control principle block diagram of automatic controller among the utility model embodiment;
Fig. 4 is that one of the utility model embodiment has the flow diagram of hauling oneself willingly into runback (R) function;
Fig. 5 is that two of the utility model embodiment has and hauls oneself willingly into the not flow diagram of runback (S) function;
Fig. 6 is the flow diagram that three of the utility model embodiment has electrical network～generating (F) function.
Embodiment
Embodiment one:
Fig. 1～Figure 4 shows that one of embodiment of the present utility model comprises and switches body, is used to detect the power supply phase voltage and sends the automatic controller of instruction and be used to be connected the socket 5 that switches body and automatic controller to switching body that this socket 5 is the aviation socket.
As shown in Figure 1, switch body comprise two circuit breakers, mains switch 1 commonly used, Backup Power Switch 1 ', two binding posts 2, additional alarm annex 7 and mechanical interlock mechanisms 8, binding post 2 is a neutral line binding post.Commonly used, Backup Power Switch 1 and 1 ' the bottom be installed on the switch mounting rail 4,4 of mounting rails with the binding post screw on mounting panel 9, binding post 2 is stuck on the mounting rail 4 by binding post fixed head 3, circuit breaker 11 usefulness mounting screws are fixed on the mounting panel 9, and socket 5 also is fixed on the mounting panel 9.Mains switch commonly used, Backup Power Switch 1 and 1 ' be connected respectively on two circuit breakers 11.As shown in Figure 2, additional alarm annex 7 is contained in circuit breaker 11 inside, and the outside of circuit breaker 11 respectively is provided with motor-operating mechanism 6.8 of mechanical interlock mechanisms are contained on the operating grip 12 of two motor-operating mechanisms 6.Motor-operating mechanism 6,7 circuit connections of additional alarm annex are welded on the socket 5 at mounting panel 9 bottom cablings.
Automatic controller comprises power supply input and value circuit, the control circuit with programmable single chip computer and output and drive circuit, wherein the output of power supply input and value circuit connects with the input of single chip machine controlling circuit, and the output of single chip machine controlling circuit is connected with the input of output and drive circuit.Automatically the control device is advantageously connected on the socket 5 with the cable that is about 2 meters two ends band socket.Power supply commonly used and stand-by power supply provide power supply by stube cable to controller again by switching mains switch commonly used 1, the Backup Power Switch 1 ' reach two neutral line binding posts 2 to be connected on the socket 5 on the body.Electric network source and load wiring can be with copper bar or power cables.
The working power voltage that switches body and automatic controller is AC230V.The control principle of automatic controller as shown in Figure 3, to use power supply A always, B, the C three-phase, stand-by power supply A, B, the C three-phase voltage, send into the power supply input and the value circuit of automatic controller, adopt the mode of photoelectricity coupling, realize the good isolation of forceful electric power and light current, photoelectrical coupler carries out value with every phase voltage simultaneously, sampling, then sampling value is sent into and carried out analog-to-digital conversion among the ADC0809, result after the analog-to-digital conversion is admitted in the single chip machine controlling circuit, single-chip microcomputer is according to the three-phase voltage data and the operating state of being got, handle accordingly by the program that sets, result is sent separating brake or reclosing command by output and drive circuit corresponding instruction relay to the motor-operating mechanism 6 that switches body, thereby realizes the power supply handoff functionality.In addition, single-chip microcomputer is also selected to discern to operating state, to whether normal separating brake combined floodgate is judged, if undesired will the warning and handle accordingly is (because single machine unit function pin is not enough, in order to expand the pin of single-chip microcomputer, use 8255 chips and carry out part indication and stand-by power supply overvoltage, under-voltage indication action).
The automatic controller of present embodiment is set to haul oneself willingly into runback (R) function, is applicable to electrical network～mains supply system.Its flow chart as shown in Figure 4, after controller power source was connected, single-chip microcomputer resetted, and sent that the instruction scan button detects each function key state and whether circuit breaker is in the trip free state, according to testing result, changed corresponding flow process over to and carried out following operation:
1.5s on the internal controller panel each function key all not by by and circuit breaker do not have trip free yet, then Automatic Program changes over to and hauls oneself willingly into the runback operation sequence.
2. pressed if detect " only commonly used " function key, then caller detects commonly used and stand-by power supply state (faults such as whether under-voltage, overvoltage and phase shortage), power supply commonly used is normal, controller sends instruction, drive output relay, make and switch the commonly used and auxiliaries-supply circuit-breaker electrically operated institution action of body, disconnect stand-by power supply earlier, power supply commonly used is connected in the back.Machinery, electrical equipment dual interlock guarantee that commonly used, auxiliaries-supply circuit-breaker can not be in "on" position simultaneously simultaneously.After the power source conversion, controller detects each function key state in real time, and according to testing result, does the respective logic operation.
3. pressed if detect " only standby " function key, then caller detects commonly used and stand-by power supply state (faults such as whether under-voltage, overvoltage and phase shortage), stand-by power supply is normal, controller sends instruction, drive output relay, make and switch the commonly used and auxiliaries-supply circuit-breaker electrically operated institution action of body, disconnect power supply commonly used earlier, stand-by power supply is connected in the back.Machinery, electrical equipment dual interlock guarantee that commonly used, auxiliaries-supply circuit-breaker can not be in "on" position simultaneously simultaneously.Drive output relay, after the power source conversion, controller detects each function key state in real time, and according to testing result, does the respective logic operation.
4. pressed if detect " hauling oneself willingly into runback " function key, then caller detects state commonly used (faults such as whether under-voltage, overvoltage and phase shortage), if power supply commonly used is normal, controller sends instruction, drive output relay, make and switch the commonly used and auxiliaries-supply circuit-breaker electrically operated institution action of body, disconnect stand-by power supply earlier, the Chang Youyong power supply is connected in the back.Machinery, electrical equipment dual interlock guarantee that commonly used, auxiliaries-supply circuit-breaker can not be in "on" position simultaneously simultaneously.If power supply commonly used is undesired, controller sends instruction, drives output relay, makes to switch the action of body auxiliaries-supply circuit-breaker electrically operated institution, disconnects power supply commonly used.Then call the stand-by power supply trace routine, if stand-by power supply is normal, controller sends instruction, drives output relay, makes to switch the action of body auxiliaries-supply circuit-breaker electrically operated institution, connects stand-by power supply; If stand-by power supply is undesired, controller sends instruction, drives output relay, makes to switch the action of body auxiliaries-supply circuit-breaker electrically operated institution, forbids the stand-by power supply connection.Switch body mechanical in real time, electrical equipment dual interlock under transfer process and other state, guarantee that power circuit breaker commonly used, auxiliaries-supply circuit-breaker can not be in "on" position simultaneously.After the power source conversion, controller detects each function key state in real time, and according to testing result, does the respective logic operation.
5。" outage is button again " function key is pressed if detect, and controller sends instruction, drives output relay, makes to switch that body is commonly used, the action of auxiliaries-supply circuit-breaker electrically operated institution, disconnects commonly used and stand-by power supply, and the circuit breaker that is in trip free is detained again.After the power source conversion, controller detects each function key state in real time, and according to testing result, does the respective logic operation.
6. if detect commonly used or auxiliaries-supply circuit-breaker is in " trip free " state, controller sends instruction and carries out sound and light alarm, and after this program limit only accepts outage button and alarm command more simultaneously.Just can carry out other normal logic operation when waiting to cut off the power supply again opening power.
Embodiment two:
The difference of present embodiment and embodiment one is: the automatic controller of present embodiment is set to haul oneself willingly into not runback (S) function, is applicable to electrical network～mains supply system.Its flow chart is compared with embodiment one as shown in Figure 5, removes to haul oneself willingly into runback function control program and change into and haul oneself willingly into not runback function control program, and other function is identical.Haul oneself willingly into not runback function control program and haul oneself willingly into runback function control program difference and be: when power supply commonly used is undesired, controller control power circuit breaker commonly used disconnects, the auxiliaries-supply circuit-breaker closure, if still controlling power circuit breaker commonly used, power up normal controller commonly used disconnects, auxiliaries-supply circuit-breaker is connected, and power source conversion does not take place.
Embodiment three:
The difference of present embodiment and embodiment one is: the automatic controller of present embodiment is set to electrical network～generating (F) function, is applicable to electrical network～electricity generation system system.Its flow chart is compared with embodiment one as shown in Figure 6, changes electrical network-electricity generate function control program into except that hauling oneself willingly into runback function control program, and other function is identical.Increase is used to connect direct current 12V and generating signal two set of connections terminals on the automatic controller hardware, and electrical network-electricity generate function control flow is as follows:
Pressed if detect " electrical network-generating " function key, caller detection of grid power supply status commonly used (faults such as whether under-voltage, overvoltage and phase shortage) then, if electrical network power supply commonly used is normal, make and switch the commonly used and auxiliaries-supply circuit-breaker electrically operated institution action of body electrical network, disconnect the generating power supply earlier, electrical network power supply commonly used is connected in the back, and machinery, electrical equipment dual interlock guarantee that auxiliaries-supply circuit-breaker can not be in "on" position simultaneously simultaneously.If electric network source is undesired, the controller concurrent signal of telecommunication instruction of setting out of 12V DC power supply of migrating, drive output relay, make generator for electricity generation, controller panel signal flicker indication this moment is after certain time-delay, whether controller detects the generating power supply normal, body electric network source circuit breaker electric behaviour mechanism action is meanwhile switched in the generating power supply power supply if normal controller is migrated, and electric network source disconnects.Then drive the conversion of generating circuit breaker and use output relay, make and switch the action of body generating power circuit breaker electrically operated institution, connect the generating power supply; If the generating power supply is undesired, controller is ended the generating signal, and generator stops going up generating, and waits to repair with signal lamp prompting generator.Switch body machinery, electrical equipment dual interlock in real time under transfer process and other state, guarantee power circuit breaker commonly used, prepare for war with power circuit breaker and can not be in "on" position simultaneously.After the power source conversion, controller detects each function key state in real time, and according to testing result, does the respective logic operation.
Claims (2)
1, a kind of double-power supply switching device, comprise the switching body, this switching body comprises two circuit breakers, mains switch, Backup Power Switch and two binding posts commonly used, mains switch wherein commonly used, Backup Power Switch are connected respectively on two circuit breakers, be equipped with motor-operating mechanism on the described circuit breaker, be connected with a mechanical interlock mechanism between two motor-operating mechanisms; It is characterized in that:
It also comprises and is used to detect the power supply phase voltage and to switching the socket that body sends the automatic controller of instruction and is used to be connected switching body and automatic controller; Described automatic controller comprises power supply input and value circuit, the control circuit with programmable single chip computer and output and drive circuit, wherein the output of power supply input and value circuit connects with the input of single chip machine controlling circuit, and the output of single chip machine controlling circuit is connected with the input of output and drive circuit;
Described automatic controller is plugged on the socket, and two motor-operating mechanisms that switch on the body circuit breaker are connected on the socket by wiring respectively.
2, double-power supply switching device according to claim 1 is characterized in that: also be respectively equipped with the additional alarm annex on described two circuit breakers, each additional alarm annex is connected on the socket by wiring respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420046381 CN2713712Y (en) | 2004-05-31 | 2004-05-31 | Double power supply switching arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420046381 CN2713712Y (en) | 2004-05-31 | 2004-05-31 | Double power supply switching arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2713712Y true CN2713712Y (en) | 2005-07-27 |
Family
ID=34872224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420046381 Expired - Fee Related CN2713712Y (en) | 2004-05-31 | 2004-05-31 | Double power supply switching arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2713712Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421562A (en) * | 2020-11-11 | 2021-02-26 | 冀振萍 | Automatic switching brake box |
-
2004
- 2004-05-31 CN CN 200420046381 patent/CN2713712Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421562A (en) * | 2020-11-11 | 2021-02-26 | 冀振萍 | Automatic switching brake box |
| CN112421562B (en) * | 2020-11-11 | 2022-08-19 | 国网上海市电力公司 | Automatic switching brake box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |