CN2222979Y - Automatic controller for disconnecting from normal source and connecting to stand-by source - Google Patents
Automatic controller for disconnecting from normal source and connecting to stand-by source Download PDFInfo
- Publication number
- CN2222979Y CN2222979Y CN 95230619 CN95230619U CN2222979Y CN 2222979 Y CN2222979 Y CN 2222979Y CN 95230619 CN95230619 CN 95230619 CN 95230619 U CN95230619 U CN 95230619U CN 2222979 Y CN2222979 Y CN 2222979Y
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- circuit
- control device
- signal
- controller
- programmable controller
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- Testing And Monitoring For Control Systems (AREA)
Abstract
The utility model relates to an automatic controller for disconnecting from normal source and connecting to stand-by source. The utility model is composed of a detection circuit, a programmable controller, a display circuit, an acoustic-optic alarm circuit and a latching executive circuit. The utility model is characterized in that the detection function of a power supply signal is realized, the on-off state of the equipment can be detected, and the equipment state and the equipment code can be displayed by a display; when the abnormal case of the equipment occurs, the failure equipment can be directly indicated by the display circuit and the acoustic-optic alarm circuit, and workers can deal with the failure equipment in time; thus, the utility model is always in normal working state; thereby, the reliability of the utility model is improved, and the success ratio of the automatic control of the utility model can reach to 100%. The utility model also has the function of motor protection.
Description
The utility model relates to a kind of presetting apparatus, particularly has automatic detection, judgment task power supply and equipment fault, excises trouble power automatically, in time drops into the control device of hauling oneself willingly into of functions such as stand-by power supply and motor under-voltage protection.
Industrial enterprise will be provided with stand-by power supply in order to improve power supply reliability and to guarantee usually to the important load uninterrupted power supply.When working power is interrupted, start stand-by power supply and in time drop into, realize uninterrupted power supply.Existing automatic closing control device mainly is to be made of electromagnetic type voltage, electric current, time, M signal relay.Its deficiency is: the logical relation complexity of A, automatic bus, and make and break contact is more, and corresponding failure point is many.Because it does not have the measuring ability to faults itself, so reliability is lower; B, do not have auto-lock function, when short trouble appears in working line, tend to reduce, cause the failure of stand-by power supply input because of electromagnetic coupled influences dead section voltage; C, function are few, and operating operation test very bothers, and needing usually partly or entirely has a power failure tests; D, part relay need long-term energising, and not only power consumption also causes device failure easily.Above-mentioned in a word all multifactor success rates of hauling oneself willingly into that all will influence automatic bus, it is hauled oneself willingly into success rate and is no more than 50%.Therefore it can not satisfy the requirement of uninterrupted power supply.
The purpose of this utility model is to provide a kind of reliability high and multiple functional automatic closing control device.
To achieve these goals, the utility model has adopted the core control part of programmable controller as this device, it can not only detect and realize switching power supply signal, can also detect and shows that assurance equipment is in normal operating conditions all the time the facility switching state.Simultaneously can also be to the motor low-voltage, busbar fault is implemented protection.Concrete technical solution is: by testing circuit, programmable controller, display circuit, the automatic closing control device that sound light alarming circuit and locking executive circuit are formed, the input of its programmable controller is connected with testing circuit, output respectively with display circuit, sound light alarming circuit, the locking executive circuit is connected, described testing circuit is made up of power supply signal testing circuit and facility switching status signal testing circuit two parts, equipment state detects the interlocking contact state that not only can detect equipment of itself, and state that can also detection facility switching contact, above-mentioned status detection result will show by display circuit, the also corresponding simultaneously code that demonstrates this equipment.Owing to adopted omnibearing automatic detection, and send equipment state shown in alarm signal and the display circuit and code by the sound light alarming circuit of correspondence, make the staff can recognize the concrete position of residing state of equipment or fault point intuitively, in time handle, make it remain at normal operating state, this will improve the reliability of device greatly, guarantee to haul oneself willingly into success.
In the power supply signal testing circuit, one or two section power source voltage signal is to send into programmable controller by three voltage relays that are connected between voltage transformer A, B, the C triple line, three voltage relays are connected between AB, AC, the BC phase line, form triangle and connect.By three voltage relays that connect by triangle reflect one section or two sections working powers whether the benefit of dead electricity be: helping distinguishing is single-phase dead electricity or whole dead electricity, guarantee the reliability of detection signal, can not cause voltage relay all to move because of a phase fuse failure.This structure also is convenient to work out the break alarm program simultaneously.
Described power supply signal testing circuit also comprises the current detection circuit of being made up of current transformer and current relay, it sends the current signal on, two section and the female on line road into programmable controller by current relay, when controller is received the short trouble signal, it only exports excision faulty line switching signal to the locking executive circuit, and do not export from voted signal to the locking executive circuit, be the program self-locking, in case switchgear second short circuit expansion accident scope.
Described locking executive circuit is made up of one group of auxiliary relay that links to each other with controller output end.Each contact of auxiliary relay correspondence respectively is connected controller output end and one or two section power circuit breaker, bus and power consumption equipment are between the fuser motor.When controller control locking executive circuit is realized the excision trouble power, also will disconnect the motor circuit of segment fault power supply power supply thus, realize motor protection.Directly control motor protecting circuit by controller, not only improved the reliability of protection, and can also the simplified system protective device, reduce cost.
On the programmable controller input, be connected with one, two section power cut-off simulation switching tests button 1SA, 2SA.When this test button is connected, controller then will be corresponding one by one with one, two section power circuit breaker, bus and power consumption equipment circuit breaker and connects and realize that by auxiliary relay the simulation display lamp of conversion connects, and simulates the action situation of hauling oneself willingly into control device behind one section or the two sections power cut-offs.
Also be connected to self check startup and executive button 3SA, 4SA at the programmable controller input.When the self check start button is connected, controller will start barring program, with system lock, so that debug.When the self check executive button is connected, controller starts self-check program, controller is delivered to display circuit with the equipment state signal that receives, by the equipment state symbol on display display controller input point code successively and corresponding and this input point, usually with " H " indication equipment junction closure, with "-" expression contact open circuit, and then demonstrate corresponding equipment code with it.So that search faulty equipment.
The utility model compared with prior art has following characteristics: utilize programmable controller as the master control device of hauling oneself willingly into control device, can reduce control appliance, simplify wiring, improve the reliability of device.It can also be monitored the state of each control appliance simultaneously, and equipment state of living in and device code shown by display, when equipment occurs when unusual, display circuit and sound light alarming circuit directly indicate faulty equipment, being convenient to the staff in time handles, assurance is hauled oneself willingly into control device and is in normal operating conditions all the time, thereby has further improved the reliability of device.After adopting above-mentioned two measures, it hauls oneself willingly into success rate can reach 100%, has guaranteed the reliability of power supply.It also has anti-misoperation, motor under-voltage protection, motor desynchronizing synchronizing again, and the busbar fault locking is hauled oneself willingly into, the function of the analogue test that do not have a power failure, and operating operation test is very convenient.
Fig. 1 is a theory diagram of the present utility model.
Fig. 2 is the circuit theory diagrams of utility model.
Be described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, the utility model mainly is to be made of programmable controller, power supply signal and equipment state testing circuit, display circuit, sound light alarming circuit and locking executive circuit.The automatic input of stand-by power supply has two kinds of forms usually, and a kind of is a working line and an extension wire, when working line hinders or the other reasons dead electricity for some reason, hauls oneself willingly into control device and will excise active line, drops into siding, and this form is bright standby.Another kind is two independently working line power supplies simultaneously respectively, disconnects with section breaker between the two, after arbitrary active line dead electricity, hauls oneself willingly into control device it is excised, and section breaker is closed a floodgate drop into another active line again, and this form is for secretly standby.Fig. 2 is dark standby circuit theory diagrams.The dark alternate configuration of bright standby ratio is simple, only needs the female connection of cancellation and revises the part control program a little and just can realize control, no longer illustrates.
See Fig. 2 A, the input of programmable controller respectively with the power supply signal testing circuit in the contact, the auxiliary relay 1ZJ-4ZJ contact in the equipment state testing circuit, one, two section power circuit breaker A of voltage relay 1YJ-6YJ
1, A
2Contact, bus B
1Contact, mother are linked to a travel switch B
2, one section be subjected to overcurrent relay D on the electric loop
1Contact, two sections are subjected to overcurrent relay D on the electric loop
2Contact, one, two section voltage transformer position travel switch E
1, E
2, female connection overcurrent relay B
3Contact and one, two section test button 1SA, 2SA, self check startup executive button 3SA, 4SA, change over switch contact ZK are connected.The output of programmable controller and display circuit (1) are seen alarm bell DL, buzzer FM, the DC power supply repeater lamp 1SD in Fig. 2 C, the sound light alarming circuit (2), the repeater lamp 2SD that breaks, locking repeater lamp 3SB, are seen Fig. 2 C, D, numeral accident clock (3), power-off time are connected with the power-cut time digital display, and it also is connected with locking executive circuit (4).See Fig. 2 D.The locking executive circuit adopts 4 intermediate relay ZJ, the coil of relay and connect the back and be connected in the middle of it with controller output end 0612, the lead-out terminal 0600～0611 of controller is corresponding respectively to be connected with each movable contact of 4 auxiliary relays, then cut the brake cable circle with display lamp 4SD～15SD with circuit breaker respectively with corresponding two breaks of movable contact and be connected, wherein A
1, A
2Be one, two section power circuit breaker, B
1Be bus closing coil, C
1～C
3Be circuit breaker, the C of three motor on one section electric power loop
5～C
7Be the circuit breaker of three motor on two sections electric power loops, C
4Be bus.D
1, D
2Be one, two section and be subjected to overcurrent relay on the electric loop.
The power supply voltage signal testing circuit is seen Fig. 2 B, its voltage relay 1YJ～6YJ3 one group, be connected into triangle, be connected to then between one section power supply and two sections power source voltage instrument transformer A, B, the C triple line, their contact is connected with the controller input respectively.When one section or two sections three-phase electricity lost simultaneously, its dead electricity signal was sent into controller through voltage relay, and through 0.5～1.5 second, controller output signal was with one section or two sections circuit breaker A
1Or A
2Excision; again with the bus input; when if slave controller input 0104 or 0105 place or 0108 receive the over-current protection relay actuating signal at this moment; then controller only excises dead electricity section circuit breaker and does not remove to drop into bus; as decompression after still do not restore electricity for 9 seconds; controller output signal is implemented the motor under-voltage protection with all fuser motor disconnections of this section.When losing a phase power supply, controller is connected the sound and light alarm loop, and emergency alarm bell sends audible signal, disconnect lamp 2SD flicker.
When a certain equipment state of hauling oneself willingly into control device changes, be subjected to electrical circuit breakers A as one section
1When the open and close state changed, this variable signal was with in slave controller input 0100 input controller, and controller shows faulty equipment code and state with this variation by display, and the buzzer in the warning circuit sends audible alarm simultaneously.
When change over switch is on the test position, system lock, 3SD is bright for the locking indicator light, represent locked can the test, this moment, the contact of auxiliary relay 1～4ZJ was connected indicator light circuit, pressed one section test button 1SA, hauled oneself willingly into the action situation of control device after 12 indicator light 4SD～one section outages of 15SD simulation, press two sections test button 2SA, 12 indicator lights are simulated the working condition that control device is hauled oneself willingly in two sections outages again.
Haul oneself willingly into control device and all can carry out self check debugging under three kinds of operating states working, stop, testing.Press self check start button 3SA, this moment, auxiliary relay 1～4ZJ started system lock, and 3SD is bright for the locking indicator light, and the expression locking can be debugged.Press self check executive button 4SA again, display in the display circuit successively display controller input code " 0001～0017 ", with input corresponding equipment state " H " or " one ", and then show output equipment code " 101-112 ".To judge the whether normal and system debug of each equipment state.
This device also is provided with power-off time digital display and power-cut time digital display, in order to record power-off time and when cutting off the power supply, and can be recovered by reset button separately.
Claims (6)
1, a kind of automatic closing control device, it is characterized in that it is made up of testing circuit, programmable controller, display circuit, sound light alarming circuit and locking executive circuit, the input of programmable controller is connected with testing circuit, and output is connected with display circuit, sound light alarming circuit, locking executive circuit respectively; Described testing circuit is made up of power supply signal testing circuit and facility switching status signal testing circuit two parts.
2, automatic closing control device according to claim 1, it is characterized in that in the power supply signal testing circuit, one or two section power source voltage signal is to send into programmable controller by three voltage relays that are connected between voltage transformer A, B, the C triple line, three voltage relays are connected between AB, AC, the BC phase line, form triangle and connect.
3, automatic closing control device according to claim 1, it is characterized in that described power supply signal testing circuit also comprises the current detection circuit of being made up of current transformer and current relay, it sends the current signal on, two section and the female on line road into programmable controller by current relay, after controller is received this signal, it only exports excision faulty line switching signal to the locking executive circuit, and does not export from voted signal to the locking executive circuit.
4, automatic closing control device according to claim 1, it is characterized in that described locking executive circuit is made up of one group of auxiliary relay that links to each other with controller output end, each contact of auxiliary relay correspondence respectively is connected between controller output end and one or two section power circuit breaker, bus and the power consumption equipment circuit breaker.
5, automatic closing control device according to claim 1 is characterized in that being connected with one, two section power cut-off simulation switching tests button 1SA, 2SA on the programmable controller input.
6, automatic closing control device according to claim 1 is characterized in that being connected with self check startup and executive button 3SA, 4SA on the programmable controller input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95230619 CN2222979Y (en) | 1995-03-22 | 1995-03-22 | Automatic controller for disconnecting from normal source and connecting to stand-by source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95230619 CN2222979Y (en) | 1995-03-22 | 1995-03-22 | Automatic controller for disconnecting from normal source and connecting to stand-by source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2222979Y true CN2222979Y (en) | 1996-03-20 |
Family
ID=33875422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95230619 Expired - Fee Related CN2222979Y (en) | 1995-03-22 | 1995-03-22 | Automatic controller for disconnecting from normal source and connecting to stand-by source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2222979Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078967C (en) * | 1997-03-19 | 2002-02-06 | 日本电气株式会社 | Transmission line protection system |
| CN102214918A (en) * | 2011-06-15 | 2011-10-12 | 艾默生网络能源有限公司 | High-reliability power supply system, method and frequency converter system |
| CN103487637A (en) * | 2013-09-30 | 2014-01-01 | 常熟市明阳电器安装工程有限公司 | Electric device abnormal current monitoring system |
| CN104104017A (en) * | 2014-07-21 | 2014-10-15 | 安徽鑫辰电气设备有限公司 | Power transformation cabinet with backup power supply |
| CN112850489A (en) * | 2021-01-06 | 2021-05-28 | 中联重科股份有限公司 | Control system for pin telescoping mechanism and engineering machine |
-
1995
- 1995-03-22 CN CN 95230619 patent/CN2222979Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078967C (en) * | 1997-03-19 | 2002-02-06 | 日本电气株式会社 | Transmission line protection system |
| CN102214918A (en) * | 2011-06-15 | 2011-10-12 | 艾默生网络能源有限公司 | High-reliability power supply system, method and frequency converter system |
| CN103487637A (en) * | 2013-09-30 | 2014-01-01 | 常熟市明阳电器安装工程有限公司 | Electric device abnormal current monitoring system |
| CN104104017A (en) * | 2014-07-21 | 2014-10-15 | 安徽鑫辰电气设备有限公司 | Power transformation cabinet with backup power supply |
| CN104104017B (en) * | 2014-07-21 | 2016-09-28 | 安徽鑫辰电气设备有限公司 | A kind of transformation cabinet with stand-by power supply |
| CN112850489A (en) * | 2021-01-06 | 2021-05-28 | 中联重科股份有限公司 | Control system for pin telescoping mechanism and engineering machine |
| CN112850489B (en) * | 2021-01-06 | 2022-03-25 | 中联重科股份有限公司 | Control system for pin telescoping mechanism and engineering machine |
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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 |