CN204065252U - A kind of simulator of circuit breaker of practicality - Google Patents
A kind of simulator of circuit breaker of practicality Download PDFInfo
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- CN204065252U CN204065252U CN201320895833.XU CN201320895833U CN204065252U CN 204065252 U CN204065252 U CN 204065252U CN 201320895833 U CN201320895833 U CN 201320895833U CN 204065252 U CN204065252 U CN 204065252U
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- 238000004891 communication Methods 0.000 claims abstract description 8
- 230000005055 memory storage Effects 0.000 claims description 8
- 239000013078 crystal Substances 0.000 claims description 5
- 230000009191 jumping Effects 0.000 abstract description 10
- 238000012360 testing method Methods 0.000 abstract description 8
- 230000001681 protective effect Effects 0.000 abstract description 6
- 238000004088 simulation Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000002474 experimental method Methods 0.000 abstract description 2
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model relates to a kind of simulator of circuit breaker of practicality, comprise Single Chip Microcomputer (SCM) system, wherein, Single Chip Microcomputer (SCM) system is connected with Switching Power Supply, clock module, communication interface, watchdog circuit, display operating panel, signal acquisition circuit, indicating lamp control circuit and time selection circuit, communication interface is connected with host computer; Display operating panel is connected with time selection circuit.The utility model device is with 80C31 singlechip chip for core carries out isolating switch simulation, and this device is mainly used in the total group test of protective relaying device.When total group test as the jumping of high voltage breaker simulator/combined floodgate effect, with avoid due to repeat total group test cause isolating switch repeatedly divide/crossed belt come inconvenience.Especially when isolating switch does not mix up, this device can shorten debug time, and improve experiment work efficiency, operation is simple and reliable.
Description
Technical field
The utility model relates to a kind of simulator of circuit breaker of practicality, belongs to breaker technical field.
Background technology
At present, in electric system, to overhaul protective relaying device every the regular period, to ensure the protective device action message when electric system is broken down.Therefore, be necessary to adopt a kind of rational device the isolating switch simulation of protection system maintenance can be applied to.The principle of this simulator of circuit breaker is, simulator of circuit breaker adopts single-chip microcomputer to be core, form vulnerabilities scan loop by integrated circuit, photoelectrical coupler and thyristor and solid state device, have reliable quarantine measures with strong power part, and 220kV combined-voltage can be born.Realize mimic-disconnecting switch jumping/closing time arrange, input signal logic control function, thus mimic-disconnecting switch jumpings/feed motion and provide one group assist often open, normally closed contact.
Utility model content
The purpose of this utility model is the simulator of circuit breaker providing a kind of practicality, can carry out the protection to relay protection maintenance better, improves maintenance efficiency.
To achieve these goals, the technical solution of the utility model is as follows.
A kind of simulator of circuit breaker of practicality, comprise Single Chip Microcomputer (SCM) system, wherein, Single Chip Microcomputer (SCM) system is connected with Switching Power Supply, clock module, communication interface, watchdog circuit, display operating panel, signal acquisition circuit, indicating lamp control circuit and time selection circuit, communication interface is connected with host computer; Display operating panel is connected with time selection circuit.
Further, the expanded circuit of single-chip microcomputer 80C31, external memory storage and external memory storage is provided with in Single Chip Microcomputer (SCM) system.
Further, indicating lamp control circuit is connected with trigger 74LS06A, photoelectrical coupler 4N33, DC relay, A.C. contactor.
Further, display operating panel is provided with tripping operation immediately, closing by hand, closing time, reset button and various signal lamp.
Further, watchdog circuit adopts MAX706, when single-chip microcomputer is abnormal, can reset to single-chip microcomputer 80C31.
Further, clock module crystal oscillator frequency is 6MHz.
In this utility model device, signal acquisition circuit converts the tripping operation of circuit, switching signal to 80C31 manageable pulse signal through optocoupler 4n25, and plays the effect of isolation strong and weak electricity signal.Signal acquisition circuit also completes the detection of the manual ringing such as tripping operation, closing by hand, closing time immediately on counter plate simultaneously, and converts it into pulse signal.Single Chip Microcomputer (SCM) system comprises the expanded circuit etc. of single-chip microcomputer 80C31, external memory storage.Single-chip microcomputer 80C31 is the core of mimic-disconnecting switch, the function such as detection, timing, issue an order of complete pair signals.Indicating lamp control circuit, comprises trigger 74LS06A, photoelectrical coupler 4N33, DC relay, A.C. contactor.Control closing/closing of contact by DC relay, thus make ac contactor contact close/close.Display operating panel is mainly provided with button and the various signal lamps such as tripping operation, closing by hand, closing time, reset immediately, required button can be selected artificially to operate.Watchdog circuit adopts MAX706, when single-chip microcomputer is abnormal, can reset to single-chip microcomputer 80C31.Clock crystal oscillator frequency is 6MHz.Time selection circuit is connected with the selection of time button on panel by register 74HC164.
This isolating switch is equivalent to a two-position switch, its combined floodgate time delay TH, and TT is by chip microcontroller in tripping operation time delay, changes time delay length by guidance panel upper knob.And the resistance R of real breaking coil and auxiliary switching-in coil, respectively by the Large Copacity resistance simulation of 2 100 Ω (or 200 Ω), after isolating switch completes tripping operation or combined floodgate, the electric current of artifical resistance cuts off automatically.The main contact of isolating switch, has one often to open and normally closed contact respectively, the normal Ji junction closure of mimic-disconnecting switch, represents and closes a floodgate, and normally closed contact disconnects, and represents separating brake.It can cut-off the capacity of 45A/220V, can be directly used in the test current cutting off relay protection, also can be used as feedback signal, controls microcomputer protective relay experimental power supply, to change the size of fault current.Panel is arranged manually, automatic jumping/switch knob, jumping conjunction/lock selection of time button, various pilot lamp.Mimic-disconnecting switch is under "on" position, and combined floodgate pilot lamp (red light) is bright, and now the normal opened contact of mimic-disconnecting switch closes, and normally closed contact disconnects; At a trip condition, tripping operation pilot lamp (green light) is bright for mimic-disconnecting switch, and now the normally closed contact of mimic-disconnecting switch closes, and normal opened contact disconnects.Jumping conjunction/lock the pulse power inputted by outside can be direct current 110V or 220V.
The beneficial effect of this utility model is: the utility model device is with 80C31 singlechip chip for core carries out isolating switch simulation, and this device is mainly used in the total group test of protective relaying device.When total group test as the jumping of high voltage breaker simulator/combined floodgate effect, with avoid due to repeat total group test cause isolating switch repeatedly divide/crossed belt come inconvenience.Especially when isolating switch does not mix up, this device can shorten debug time, and improve experiment work efficiency, operation is simple and reliable.
Accompanying drawing explanation
Fig. 1 is institute's operative installations structural representation in the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described, better to understand the utility model.
The simulator of circuit breaker of practicality as shown in Figure 1, comprise Single Chip Microcomputer (SCM) system, wherein, Single Chip Microcomputer (SCM) system is connected with Switching Power Supply, clock module, communication interface, watchdog circuit, display operating panel, signal acquisition circuit, indicating lamp control circuit and time selection circuit, communication interface is connected with host computer; Display operating panel is connected with time selection circuit.
The expanded circuit of single-chip microcomputer 80C31, external memory storage and external memory storage is provided with in Single Chip Microcomputer (SCM) system.Indicating lamp control circuit is connected with trigger 74LS06A, photoelectrical coupler 4N33, DC relay, A.C. contactor.
Display operating panel is provided with tripping operation immediately, closing by hand, closing time, reset button and various signal lamp.Watchdog circuit adopts MAX706, when single-chip microcomputer is abnormal, can reset to single-chip microcomputer 80C31.Clock module crystal oscillator frequency is 6MHz.
In this utility model device, signal acquisition circuit converts the tripping operation of circuit, switching signal to 80C31 manageable pulse signal through optocoupler 4n25, and plays the effect of isolation strong and weak electricity signal.Signal acquisition circuit also completes the detection of the manual ringing such as tripping operation, closing by hand, closing time immediately on counter plate simultaneously, and converts it into pulse signal.Single Chip Microcomputer (SCM) system comprises the expanded circuit etc. of single-chip microcomputer 80C31, external memory storage.Single-chip microcomputer 80C31 is the core of mimic-disconnecting switch, the function such as detection, timing, issue an order of complete pair signals.Indicating lamp control circuit, comprises trigger 74LS06A, photoelectrical coupler 4N33, DC relay, A.C. contactor.Control closing/closing of contact by DC relay, thus make ac contactor contact close/close.Display operating panel is mainly provided with button and the various signal lamps such as tripping operation, closing by hand, closing time, reset immediately, required button can be selected artificially to operate.Watchdog circuit adopts MAX706, when single-chip microcomputer is abnormal, can reset to single-chip microcomputer 80C31.Clock crystal oscillator frequency is 6MHz.Time selection circuit is connected with the selection of time button on panel by register 74HC164.
This isolating switch is equivalent to a two-position switch, its combined floodgate time delay TH, and TT is by chip microcontroller in tripping operation time delay, changes time delay length by guidance panel upper knob.And the resistance R of real breaking coil and auxiliary switching-in coil, respectively by the Large Copacity resistance simulation of 2 100 Ω (or 200 Ω), after isolating switch completes tripping operation or combined floodgate, the electric current of artifical resistance cuts off automatically.The main contact of isolating switch, has one often to open and normally closed contact respectively, and the normal opened contact of mimic-disconnecting switch closes, and represents and closes a floodgate, and normally closed contact disconnects, and represents separating brake.It can cut-off the capacity of 45A/220V, can be directly used in the test current cutting off relay protection, also can be used as feedback signal, controls microcomputer protective relay experimental power supply, to change the size of fault current.Panel is arranged manually, automatic jumping/switch knob, jumping conjunction/lock selection of time button, various pilot lamp.Mimic-disconnecting switch is under "on" position, and combined floodgate pilot lamp (red light) is bright, and now the normal opened contact of mimic-disconnecting switch closes, and normally closed contact disconnects; At a trip condition, tripping operation pilot lamp (green light) is bright for mimic-disconnecting switch, and now the normally closed contact of mimic-disconnecting switch closes, and normal opened contact disconnects.Jumping conjunction/lock the pulse power inputted by outside can be direct current 110V or 220V.
The above is preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.
Claims (2)
1. a practical simulator of circuit breaker, comprise Single Chip Microcomputer (SCM) system, it is characterized in that: described Single Chip Microcomputer (SCM) system is connected with Switching Power Supply, clock module, communication interface, watchdog circuit, display operating panel, signal acquisition circuit, indicating lamp control circuit and time selection circuit, described communication interface is connected with host computer; Described display operating panel is connected with time selection circuit; The expanded circuit of single-chip microcomputer 80C31, external memory storage and external memory storage is provided with in described Single Chip Microcomputer (SCM) system; Described indicating lamp control circuit is connected with trigger 74LS06A, photoelectrical coupler 4N33, DC relay, A.C. contactor; Described display operating panel is provided with tripping operation immediately, closing by hand, closing time, reset button and various signal lamp.
2. the simulator of circuit breaker of a kind of practicality according to claim 1, is characterized in that: described clock module crystal oscillator frequency is 6MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320895833.XU CN204065252U (en) | 2013-12-31 | 2013-12-31 | A kind of simulator of circuit breaker of practicality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320895833.XU CN204065252U (en) | 2013-12-31 | 2013-12-31 | A kind of simulator of circuit breaker of practicality |
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| Publication Number | Publication Date |
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| CN204065252U true CN204065252U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320895833.XU Expired - Lifetime CN204065252U (en) | 2013-12-31 | 2013-12-31 | A kind of simulator of circuit breaker of practicality |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111781852A (en) * | 2020-06-05 | 2020-10-16 | 许昌开普检测研究院股份有限公司 | Integrated modeling method for control logic and state signal of digital analog circuit breaker |
| CN113702822A (en) * | 2021-09-13 | 2021-11-26 | 深圳供电局有限公司 | Simulated circuit breaker device for tripping and closing tests of power grid relay protection equipment |
-
2013
- 2013-12-31 CN CN201320895833.XU patent/CN204065252U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111781852A (en) * | 2020-06-05 | 2020-10-16 | 许昌开普检测研究院股份有限公司 | Integrated modeling method for control logic and state signal of digital analog circuit breaker |
| CN111781852B (en) * | 2020-06-05 | 2024-03-29 | 许昌开普检测研究院股份有限公司 | Integrated modeling method for digital analog circuit breaker control logic and state signal |
| CN113702822A (en) * | 2021-09-13 | 2021-11-26 | 深圳供电局有限公司 | Simulated circuit breaker device for tripping and closing tests of power grid relay protection equipment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141231 |
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| CX01 | Expiry of patent term |