CN205581558U - Convenient circuit breaker intelligent control ware that detects - Google Patents
Convenient circuit breaker intelligent control ware that detects Download PDFInfo
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- CN205581558U CN205581558U CN201620355263.9U CN201620355263U CN205581558U CN 205581558 U CN205581558 U CN 205581558U CN 201620355263 U CN201620355263 U CN 201620355263U CN 205581558 U CN205581558 U CN 205581558U
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Abstract
The utility model discloses a convenient circuit breaker intelligent control ware that detects, including power supply circuit, current -voltage detection circuitry, analog signal processing circuit, logic control circuit, dropout implementation of circuit, keyboard, LCD screen, data communication circuit, temperature detection circuitry, an analog switch, the 2nd analog switch, current -voltage 0 circuit and current -voltage 1 current -voltage 2. An analog switch is coupled between current -voltage detection circuitry and analog signal modulate circuit, the 2nd analog switch is coupled between logic control circuit and dropout implementation of circuit, the remote control receiving circuit is used for the externally to receive a remote control signal to forward to logic control circuit, logic control circuit is in response to remote control signal, controls an analog switch, the 2nd analog switch is for off -state or open the state to and send corresponding switching signal to analog signal generating circuit, logic control circuit receives temperature detection of signal, carries out the comparison with its and default to according to comparative result alarm output signal.
Description
Technical field
This utility model relates to circuit breaker intelligent controller, more specifically, it relates to the circuit breaker intelligent controller of a kind of convenient detection.
Background technology
Low-voltage circuit breaker is as one of important electric elements in distribution system, and its effect is to protect distribution network and industrial equipment from the damage of the faults such as short circuit, overload and ground connection.The detection of conventional circuit breaker and defencive function is many is completed by electromagnetic component, its movement time length, protection precision is low, difficulty of adjusting.Along with technological progress, its modularity, intellectuality and automatization are required for separate unit chopper, multiple stage chopper in electric power system is required to realize connected network communication, Centralized Monitoring etc., the most so-called intelligent breaker is the chopper that have employed intelligent controller, it is mainly characterized by fully applying the new techniques such as microelectronics, microcomputer monitoring, Based Intelligent Control and network service on traditional circuit breaker foundation, has higher reliability.Several intelligent breakers can form intelligence power supply-distribution system by interactive network, has the four remote control functions such as remote measurement, remote control, remote signalling and remote regulating.
When actually used, need intelligent controller is detected accordingly, to determine if to work normally, it is to avoid after putting into electrical network, it is impossible to the normal trouble used.Intelligent controller the most on the market, although there is self-diagnostic function, but the function of the main circuit module of very small part can only be diagnosed, the most comprehensively.
Utility model content
The deficiency existed for prior art, the purpose of this utility model is to provide one to be capable of on-line checking, and detection more comprehensively circuit breaker intelligent controller.
For achieving the above object, this utility model provides following technical scheme:
A kind of circuit breaker intelligent controller, performs circuit, keyboard, liquid crystal display screen and datel circuit including power circuit, current/voltage testing circuit, analog signal processing circuit, logic control circuit, dropout；Wherein, described current/voltage testing circuit, analog signal processing circuit, logic control circuit, dropout perform circuit and couple successively, and described keyboard, liquid crystal display screen and datel circuit couple with logic control circuit；Also include:
Temperature sensing circuit, for detecting the temperature of circuit breaker intelligent controller, and exports corresponding temperature signal；
First analog switch, is coupled between current/voltage testing circuit and analog signal conditioner circuit；
Second analog switch, is coupled to logic control circuit and threads off between execution circuit；
Remote-control receiving circuit, is used for from external reception one remote signal, and forwards to logic control circuit；And
Analogue signal generative circuit, its outfan is coupled between the outfan of the first analog switch and the input of analog signal conditioner circuit；Described analogue signal generative circuit is in response to a switching signal, and exporting or stop output can the analog current of simulated failure operating mode；
Wherein, described logic control circuit, in response to described remote signal, controls described first analog switch, the second analog switch is off-state or opening, and sends corresponding switching signal to analogue signal generative circuit；
Described logic control circuit receives temperature detection signal, it is compared with preset value, and according to comparative result output alarm signal.
Further, described analogue signal generative circuit includes:
DC/AC transducer, its input is coupled to described power circuit；
On-off circuit, has a gate-controlled switch being coupled between AC/DC transducer and power circuit, and described on-off circuit, in response to described switching signal, controls described gate-controlled switch turn-on and turn-off.
Further, described logic control circuit includes the MCU with AD conversion function, and couple with MCU watchdog circuit, clock circuit, storage circuit；Described analog signal processing circuit, dropout perform circuit, the first analog switch, the second analog switch, on-off circuit and analog control circuit and all couple with MCU.
Further, also include that standby trip circuit, described standby trip circuit include:
Threshold sets module, for generating a setting value；
Instantaneous detection module, is coupled to analog signal processing circuit, for being compared with setting value by the detection signal exported from analog signal processing circuit, and exports a comparison signal according to comparative result；
Dropout analog module, in response to described comparison signal, performs circuit to threading off and exports control signal of threading off accordingly.
Further, described instantaneous detection module uses comparator.
Further, described dropout analog module uses a/d converter.
Compared with prior art, the utility model has the advantages that: staff is during patrolling and examining, it is only necessary to remote controller, start the self-checking function of intelligent controller.Simultaneously as be to simulate the fault condition in supply line, therefore, it is possible to intelligent controller is carried out detection from the beginning to the end, decrease careless omission as far as possible so that testing result is taken advantage of in comprehensively.
Accompanying drawing explanation
Fig. 1 is the circuit module figure of circuit breaker intelligent controller in this utility model；
Fig. 2 is the circuit module figure simulating signal generating circuit in this utility model.
Reference: 100, voltage and current detection circuit, 200, logic processing circuit.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited only to this.
Circuit breaker intelligent controller as shown in Figure 1, current/voltage testing circuit includes hollow mutual inductor and voltage transformer, is respectively used to detect the electric current I in supply line and voltage U；The electric current I and the voltage U that induce are input to the first analog switch, are input to analog signal processing circuit via the first analog switch.
After the analog signal processing circuit electric current I to receiving and voltage U carries out Isolation, processing and amplifying, then input to logic control circuit.
Logic control circuit includes MCU, storage circuit, watchdog circuit and the clock circuit that multicircuit switch, band A/D change；Wherein, the input of multicircuit switch is coupled to the outfan of analog signal processing circuit, to be able to receive that electric current I after treatment and voltage U；Two kinds of analogue signals are converted to digital signal by electric current I and voltage U A/D modular converter of band in multicircuit switch is input to MCU, MCU, carry out logical operations for MCU.Clock circuit provides accurate clock frequency for MCU, and watchdog circuit is for monitoring the running status of MCU, it is to avoid it causes whole controller to be constantly in the state that cannot work because of program entanglement；The action current of various error protections and the setting valve of time by keyboard to set up and are stored in storage circuit (EEPROM); the current signal detected is compared by MCU with setting valve; judge whether to thread off; and export corresponding control signal; this control signal is through the second analog switch; it is input to thread off and performs circuit, perform circuit work to control to thread off.
First analog switch, the second analog switch and multicircuit switch, use 4 tunnels analogies switches, and the control end of three is all coupled to MCU, with can the control of hard to bear MCU and on or off.
Remote-control receiving circuit, is used for from external reception one remote signal, and forwards to logic control circuit.
With reference to Fig. 2, analogue signal generative circuit includes DC/AC transducer and on-off circuit: wherein, the input of DC/AC transducer is coupled to power circuit, with the unidirectional current that power circuit is exported, be converted to alternating current (Vp), this alternating current is as the detection electric current simulated and detection voltage, and input is to analog signal processing circuit；On-off circuit, has a gate-controlled switch being coupled between AC/DC transducer and power circuit, and on-off circuit, in response to switching signal, controls gate-controlled switch turn-on and turn-off.This gate-controlled switch can use audion Q1.
Therefore, the operation principle of the present embodiment is: staff uses remote controller, an enabling signal is sent to remote control transmission circuit, enabling signal is forwarded to MCU by remote control transmission circuit, MCU controls the first analog switch and the second analog switch is off-state afterwards, and intelligent controller enters test mode；Meanwhile, MCU sends to analogue signal generative circuit and opens signal Vc(low level)；Switching tube in analogue signal generative circuit turns off, and the output voltage of power circuit is input to DC/AC transducer；DC/AC transducer output AC electricity is to analog signal processing circuit；After process, it is delivered to MCU via multicircuit switch, after logical process, result is shown on liquid crystal display screen by MCU, if normally, staff presses the switch on remote controller again, MCU controls switching tube conducting, DC/AC transducer stops output, and controls the first analog switch and the second analog switch is opening, and intelligent controller recovers normal and uses.
It addition, temperature sensing circuit temperature signal carries out A/D conversion to MCU, MCU to it, and comparing with preset value, when temperature signal exceedes preset value, MCU output alarm signal to alarm, controller is reported to the police.
Embodiment two:
The present embodiment is on the basis of implementing one, and circuit breaker intelligent controller further comprises standby trip circuit, and standby trip circuit includes threshold sets module, instantaneous detection module and dropout analog module；Wherein, threshold sets module, reference value generative circuit can be used, for generating a setting value；Instantaneous detection module uses comparator, and it is coupled to analog signal processing circuit, for being compared with setting value by the detection signal exported from analog signal processing circuit, and exports a comparison signal according to comparative result；Dropout analog module uses a/d converter, in response to comparison signal, performs circuit to threading off and exports control signal of threading off accordingly.
Therefore, simulation dropout is a kind of spare buckle release mode, and i.e. when fault-signal exceedes regulation, analog signals, without MCU, directly makes circuit breaker tripping, it is ensured that chopper action message.
Claims (6)
1. a circuit breaker intelligent controller for convenient detection, performs circuit, keyboard, liquid crystal display screen and datel circuit including power circuit, current/voltage testing circuit, analog signal processing circuit, logic control circuit, dropout；Wherein, described current/voltage testing circuit, analog signal processing circuit, logic control circuit, dropout perform circuit and couple successively, and described keyboard, liquid crystal display screen and datel circuit couple with logic control circuit；It is characterized in that, also include:
Temperature sensing circuit, for detecting the temperature of circuit breaker intelligent controller, and exports corresponding temperature signal；
First analog switch, is coupled between current/voltage testing circuit and analog signal conditioner circuit；
Second analog switch, is coupled to logic control circuit and threads off between execution circuit；
Remote-control receiving circuit, is used for from external reception one remote signal, and forwards to logic control circuit；And
Analogue signal generative circuit, its outfan is coupled between the outfan of the first analog switch and the input of analog signal conditioner circuit；Described analogue signal generative circuit is in response to a switching signal, and exporting or stop output can the analog current of simulated failure operating mode；
Wherein, described logic control circuit, in response to described remote signal, controls described first analog switch, the second analog switch is off-state or opening, and sends corresponding switching signal to analogue signal generative circuit；
Described logic control circuit receives temperature detection signal, it is compared with preset value, and according to comparative result output alarm signal.
The circuit breaker intelligent controller of convenient detection the most according to claim 1, is characterized in that, described analogue signal generative circuit includes:
DC/AC transducer, its input is coupled to described power circuit；
On-off circuit, has a gate-controlled switch being coupled between AC/DC transducer and power circuit, and described on-off circuit, in response to described switching signal, controls described gate-controlled switch turn-on and turn-off.
The circuit breaker intelligent controller of convenient detection the most according to claim 2, is characterized in that, described logic control circuit includes the MCU with AD conversion function, and couple with MCU watchdog circuit, clock circuit, storage circuit；Described analog signal processing circuit, dropout perform circuit, the first analog switch, the second analog switch, on-off circuit and analog control circuit and all couple with MCU.
The circuit breaker intelligent controller of convenient detection the most according to claim 1, is characterized in that, also include that standby trip circuit, described standby trip circuit include:
Threshold sets module, for generating a setting value；
Instantaneous detection module, is coupled to analog signal processing circuit, for being compared with setting value by the detection signal exported from analog signal processing circuit, and exports a comparison signal according to comparative result；
Dropout analog module, in response to described comparison signal, performs circuit to threading off and exports control signal of threading off accordingly.
The circuit breaker intelligent controller of convenient detection the most according to claim 4, is characterized in that, described instantaneous detection module uses comparator.
The circuit breaker intelligent controller of convenient detection the most according to claim 4, is characterized in that, described dropout analog module uses a/d converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620355263.9U CN205581558U (en) | 2016-04-22 | 2016-04-22 | Convenient circuit breaker intelligent control ware that detects |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620355263.9U CN205581558U (en) | 2016-04-22 | 2016-04-22 | Convenient circuit breaker intelligent control ware that detects |
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| CN205581558U true CN205581558U (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620355263.9U Expired - Fee Related CN205581558U (en) | 2016-04-22 | 2016-04-22 | Convenient circuit breaker intelligent control ware that detects |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303945A (en) * | 2018-01-11 | 2018-07-20 | 深圳市三江电气股份有限公司 | Novel air switch controller |
-
2016
- 2016-04-22 CN CN201620355263.9U patent/CN205581558U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303945A (en) * | 2018-01-11 | 2018-07-20 | 深圳市三江电气股份有限公司 | Novel air switch controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 Termination date: 20200422 |
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| CF01 | Termination of patent right due to non-payment of annual fee |