CN105201297A - Anti-misoperation device of electromagnetic lock by monitoring leakage current of arrester - Google Patents
Anti-misoperation device of electromagnetic lock by monitoring leakage current of arrester Download PDFInfo
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- CN105201297A CN105201297A CN201510485841.0A CN201510485841A CN105201297A CN 105201297 A CN105201297 A CN 105201297A CN 201510485841 A CN201510485841 A CN 201510485841A CN 105201297 A CN105201297 A CN 105201297A
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Abstract
The invention discloses an anti-misoperation device of an electromagnetic lock by monitoring the leakage current of an arrester. A high-voltage presence indication device comprises a three-phase current sensor, a TVS (Transient Voltage Suppressor), a three-phase amplification filter circuit, a master MCU (Microprogrammed Control Unit), an LED (Light Emitting Diode) circuit and a lockout circuit, wherein the LED circuit comprises an LED driving circuit and an LED main circuit; the lockout circuit comprises a lockout driving circuit and an electromagnetic lock main circuit; the output end of the three-phase current sensor is respectively connected with the input end of the TVS and the input end of the three-phase amplification filter circuit; the output end of the three-phase amplification filter circuit is connected with the input end of the master MCU; the output end of the master MCU is respectively connected with the input end of the LED driving circuit and the input end of the lockout driving circuit; the output end of the LED driving circuit is connected with the input end of the LED main circuit; and the output end of the lockout driving circuit is respectively connected with the input end of the electromagnetic lock main circuit. High-voltage equipment can realize installation and maintenance of the high-voltage presence indication device without power cut.
Description
Technical field
The present invention relates to a kind of electromagnetic lock error-proof device by monitoring leakage current of an arrester.
Background technology
Along with social development, electric power plays irreplaceable effect in human being's production, life, therefore, ensures that safe, stable also the becoming of substation operation equipment is even more important.When high voltage electric equipment (circuit) needs to carry out operating and overhauling, staff needs to know whether high-tension apparatus (circuit) has a power failure, to start maintenance.For this reason, the appearance of HV live displaying, it by with error-proof device interface after, whether charged information is included in anti-error Logic judgment and forced blocking, thus effectively prevents misoperation fault.
Existing conventional high-pressure charged display device need have a power failure installation and maintenance in the market, cannot meet power system production requirement.
Summary of the invention
Problem to be solved by this invention is to provide a kind of electromagnetic lock error-proof device by monitoring leakage current of an arrester, does not need have a power failure installation, maintenance.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: a kind of electromagnetic lock error-proof device by monitoring leakage current of an arrester, described high voltage display device comprises three-phase current sensor, TVS pipe, three-phase filtering and amplifying circuit, main control MCU, LED circuit and exclusive circuit, described LED circuit comprises LED drive circuit and LED main circuit, described exclusive circuit comprises latch actuation circuit and electromagnetic lock main circuit, the output of described three-phase current sensor respectively with the input of TVS pipe, the input of three-phase filtering and amplifying circuit connects, the described output of three-phase filtering and amplifying circuit is connected with the input of main control MCU, the output of described main control MCU respectively with the input of LED drive circuit, the input of latch actuation circuit connects, the output of described LED drive circuit is connected with the input of LED main circuit, the output of described latch actuation circuit is connected with the input of electromagnetic lock main circuit respectively.Three-phase current sensor gathers three-phase high-voltage equipment leakage current signal, current potential is clamped down at certain magnitude of voltage when Lightning Over-voltage (overcurrent) by TVS pipe, prevent from damaging three-phase current sensor, effectively can improve the antijamming capability under adverse circumstances, the signal of three-phase filtering and amplifying circuit to three-phase current sensor collection amplifies and filtering, main control MCU gathers signal, store, computation and analysis, when the secure threshold that high-tension apparatus leakage current signal is preset higher than main control MCU, main control MCU lights corresponding LED by LED drive circuit, instruction circuit is in electriferous state, make electromagnetic lock main circuit be in off-position by latch actuation circuit simultaneously, electromagnetic lock pins, when the secure threshold that high-tension apparatus leakage current signal is preset lower than main control MCU, main control MCU lights corresponding LED by LED drive circuit, instruction circuit is in power down mode, make electromagnetic lock main circuit be in "on" position by latch actuation circuit simultaneously, electromagnetic lock is untied, high-tension apparatus does not need to have a power failure and just can realize the installation and maintenance of high voltage display device.
Improve, described high voltage display device comprises rack, described rack comprises cabinet body and gate, the front portion of described cabinet body is uncovered, described gate is hinged on also can by uncovered capping in cabinet body, described gate capping uncovered after and cabinet body be sealed and matched, described TVS pipe, three-phase filtering and amplifying circuit, main control MCU, LED drive circuit and locking auxiliary circuit are installed in rack.Protective element device.
Improve, described high voltage display device comprises Temperature Humidity Sensor and temperature and humidity regulation circuit, described temperature and humidity regulation circuit comprises temperature and humidity regulation drive circuit and temperature and humidity regulation main circuit, the output of described Temperature Humidity Sensor is connected with the input of main control MCU, the output of described main control MCU is connected with the input of temperature and humidity regulation drive circuit, and the output of described temperature and humidity regulation drive circuit is connected with the input of temperature and humidity regulation main circuit.Temperature signal in Temperature Humidity Sensor collection rack and moisture signal, main control MCU gathers signal, store, computation and analysis, when the temperature in rack is too high, temperature and humidity regulation main circuit freezes to it, when the temperature in rack too low or/and when humidity is too high temperature and humidity regulation main circuit it is heated.
Improve, described temperature and humidity regulation main circuit comprises semiconductor chilling plate, described semiconductor chilling plate is located at that in rack and one end of semiconductor chilling plate is fixed on the outer wall of rack, the other end towards interior of equipment cabinet, described main control MCU receives and controls the switching of the sense of current on semiconductor chilling plate according to the signal of Temperature Humidity Sensor.Main control MCU controls semiconductor chilling plate and freezes towards one end of interior of equipment cabinet or heat, when the temperature in rack is too high, semiconductor chilling plate freezes towards one end of interior of equipment cabinet, when the temperature in rack too low or/and when humidity is too high semiconductor chilling plate heat towards one end of interior of equipment cabinet.
Improve, one end that described semiconductor chilling plate is fixed on rack is provided with fin.The exchange of finned accelerated heat on semiconductor chilling plate, makes semiconductor chilling plate reach obvious refrigeration cool-down effect when cabinet temperature is too high towards one end of interior of equipment cabinet.
Improve, the outer wall of described rack is provided with opening, and described fin is fixed on the outer wall of opening part, and described semiconductor chilling plate is established in the opening and semiconductor chilling plate is fixed on one end on rack and fin is fitted.With coordinating of opening, semiconductor chilling plate is fixed in the outer wall of rack by fin.
Beneficial effect:
After adopting technique scheme, a kind of electromagnetic lock error-proof device by monitoring leakage current of an arrester of this invention, three-phase current sensor gathers three-phase high-voltage equipment leakage current signal, current potential is clamped down at certain magnitude of voltage when Lightning Over-voltage (overcurrent) by TVS pipe, prevent from damaging three-phase current sensor, effectively can improve the antijamming capability under adverse circumstances, the signal of three-phase filtering and amplifying circuit to three-phase current sensor collection amplifies and filtering, main control MCU gathers signal, store, computation and analysis, when the secure threshold that high-tension apparatus leakage current signal is preset higher than main control MCU, main control MCU lights corresponding LED by LED drive circuit, instruction circuit is in electriferous state, make electromagnetic lock main circuit be in off-position by latch actuation circuit simultaneously, electromagnetic lock pins, when the secure threshold that high-tension apparatus leakage current signal is preset lower than main control MCU, main control MCU lights corresponding LED by LED drive circuit, instruction circuit is in power down mode, make electromagnetic lock main circuit be in "on" position by latch actuation circuit simultaneously, electromagnetic lock is untied, high-tension apparatus does not need to have a power failure and just can realize the installation and maintenance of high voltage display device.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
Fig. 1 is a kind of schematic diagram of the electromagnetic lock error-proof device by monitoring leakage current of an arrester;
Fig. 2 is the structural representation of rack.
Detailed description of the invention
As shown in Figure 1, a kind of electromagnetic lock error-proof device by monitoring leakage current of an arrester, high voltage display device comprises three-phase current sensor 1, TVS pipe 2, three-phase filtering and amplifying circuit 3, main control MCU 4, LED drive circuit 51, latch actuation circuit 61, Temperature Humidity Sensor 7 and temperature and humidity regulation circuit, three-phase current sensor 1 is centre path current sensor, the lower lead-in wire of arrester passes from the centre of three-phase current sensor 1, avoid the impact of the electric field of adjacent cables, reliably, indicate the electriferous state of institute's survey line road or equipment exactly, stop mistake action and rejecting action, LED circuit comprises LED drive circuit 51 and LED main circuit 52, exclusive circuit comprises latch actuation circuit 61, electromagnetic lock main circuit 62, temperature and humidity regulation circuit comprises temperature and humidity regulation drive circuit 81 and temperature and humidity regulation main circuit 82, the output of three-phase current sensor 1 respectively with the input of TVS pipe 2, the input of three-phase filtering and amplifying circuit 3 connects, the output of three-phase filtering and amplifying circuit 3, the output of Temperature Humidity Sensor 7 is connected with the input of main control MCU 4 respectively, the output of main control MCU 4 respectively with the input of LED drive circuit 51, the input of latch actuation circuit 61 is connected with temperature and humidity regulation drive circuit 81, the output of LED drive circuit 51 is connected with the input of LED main circuit 52, the output of latch actuation circuit 61 is connected with the input of electromagnetic lock main circuit 62 respectively, the output of humidity regulation drive circuit is connected with the input of temperature and humidity regulation main circuit 82, temperature and humidity regulation main circuit 82 comprises semiconductor chilling plate 821, main control MCU 4 receives and controls the switching of the sense of current on semiconductor chilling plate 821 according to the signal of Temperature Humidity Sensor 7.
As shown in Figure 2, high voltage display device comprises rack, rack comprises cabinet body 91 and gate 92, the front portion of cabinet body 91 is uncovered, gate 92 is hinged on also can by uncovered capping in cabinet body 91, gate 92 capping uncovered after and cabinet body 91 be sealed and matched, the inner side of gate 92 is provided with sealing ring, the uncovered inside wall of rear cabinet body 91 of gate 92 capping and the lateral wall of sealing ring are fitted, TVS pipe 2, three-phase filtering and amplifying circuit 3, main control MCU 4, LED circuit, latch actuation circuit 61, Temperature Humidity Sensor 7 and temperature and humidity regulation circuit are installed in rack.Semiconductor chilling plate 821 is located at that in rack and one end of semiconductor chilling plate 821 is fixed on the outer wall of rack, the other end is towards interior of equipment cabinet, semiconductor chilling plate 821 one end be fixed on rack is provided with fin 822, the outer wall of rack is provided with opening, fin 822 is fixed on the outer wall of opening part, and semiconductor chilling plate 821 is established in the opening and semiconductor chilling plate 821 is fixed on one end on rack and fin 822 is fitted.
Except above preferred embodiment, the present invention also has other embodiment, and those skilled in the art can make various change and distortion according to the present invention, only otherwise depart from spirit of the present invention, all should belong to the scope that claims of the present invention define.
Claims (6)
1. the electromagnetic lock error-proof device by monitoring leakage current of an arrester, it is characterized in that: described high voltage display device comprises three-phase current sensor, TVS pipe, three-phase filtering and amplifying circuit, main control MCU, LED circuit and exclusive circuit, described LED circuit comprises LED drive circuit and LED main circuit, described exclusive circuit comprises latch actuation circuit and electromagnetic lock main circuit, the output of described three-phase current sensor respectively with the input of TVS pipe, the input of three-phase filtering and amplifying circuit connects, the described output of three-phase filtering and amplifying circuit is connected with the input of main control MCU, the output of described main control MCU respectively with the input of LED drive circuit, the input of latch actuation circuit connects, the output of described LED drive circuit is connected with the input of LED main circuit, the output of described latch actuation circuit is connected with the input of electromagnetic lock main circuit.
2. a kind of electromagnetic lock error-proof device by monitoring leakage current of an arrester according to claim 1, it is characterized in that: described high voltage display device comprises rack, described rack comprises cabinet body and gate, the front portion of described cabinet body is uncovered, described gate is hinged on also can by uncovered capping in cabinet body, described gate capping uncovered after and cabinet body be sealed and matched, described TVS pipe, three-phase filtering and amplifying circuit, main control MCU, LED circuit and latch actuation circuit are installed in rack.
3. a kind of electromagnetic lock error-proof device by monitoring leakage current of an arrester according to claim 2, it is characterized in that: described high voltage display device comprises Temperature Humidity Sensor and temperature and humidity regulation circuit, described temperature and humidity regulation circuit comprises temperature and humidity regulation drive circuit and temperature and humidity regulation main circuit, the output of described Temperature Humidity Sensor is connected with the input of main control MCU, the output of described main control MCU is connected with the input of temperature and humidity regulation drive circuit, the output of described temperature and humidity regulation drive circuit is connected with the input of temperature and humidity regulation main circuit.
4. a kind of electromagnetic lock error-proof device by monitoring leakage current of an arrester according to claim 3, it is characterized in that: described temperature and humidity regulation main circuit comprises semiconductor chilling plate, described semiconductor chilling plate is located at that in rack and one end of semiconductor chilling plate is fixed on the outer wall of rack, the other end towards interior of equipment cabinet, described main control MCU receives and controls the switching of the sense of current on semiconductor chilling plate according to the signal of Temperature Humidity Sensor.
5. a kind of electromagnetic lock error-proof device by monitoring leakage current of an arrester according to claim 4, is characterized in that: one end that described semiconductor chilling plate is fixed on rack is provided with fin.
6. a kind of electromagnetic lock error-proof device by monitoring leakage current of an arrester according to claim 5, it is characterized in that: the outer wall of described rack is provided with opening, described fin is fixed on the outer wall of opening part, and described semiconductor chilling plate is established in the opening and semiconductor chilling plate is fixed on one end on rack and fin is fitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510485841.0A CN105201297A (en) | 2015-08-10 | 2015-08-10 | Anti-misoperation device of electromagnetic lock by monitoring leakage current of arrester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510485841.0A CN105201297A (en) | 2015-08-10 | 2015-08-10 | Anti-misoperation device of electromagnetic lock by monitoring leakage current of arrester |
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| CN105201297A true CN105201297A (en) | 2015-12-30 |
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| CN201510485841.0A Pending CN105201297A (en) | 2015-08-10 | 2015-08-10 | Anti-misoperation device of electromagnetic lock by monitoring leakage current of arrester |
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| CN203966878U (en) * | 2014-07-16 | 2014-11-26 | 常州电子研究所有限公司 | A kind of electromagnetic lock |
| CN204044232U (en) * | 2014-08-25 | 2014-12-24 | 武汉共创伏安科技有限公司 | A kind of high voltage display device by monitoring leakage current of an arrester |
| CN204044230U (en) * | 2014-08-19 | 2014-12-24 | 国家电网公司 | With the high voltage display device that error proof locking system of microcomputer is supporting |
| CN104345201A (en) * | 2013-08-09 | 2015-02-11 | 华为技术有限公司 | Leakage current detection method and device |
| CN204876897U (en) * | 2015-08-10 | 2015-12-16 | 国网浙江省电力公司湖州供电公司 | Prevent mistake device through monitoring leakage current of an arrester's electromagnetic lock |
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2015
- 2015-08-10 CN CN201510485841.0A patent/CN105201297A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2127804Y (en) * | 1992-07-16 | 1993-03-03 | 吉林市白塔开关设备厂 | Electromechanical latching anti-error device for high-voltage cabinets |
| US20050135130A1 (en) * | 2003-12-17 | 2005-06-23 | Myeong-Ho Gil | Device for detection of power-off |
| CN201740836U (en) * | 2010-06-23 | 2011-02-09 | 胡淼龙 | Lightning arrester leakage current sensor |
| US20120112771A1 (en) * | 2010-11-05 | 2012-05-10 | Paul Schliebe | Apparatus and method for detection of solenoid current |
| CN202167897U (en) * | 2011-08-17 | 2012-03-14 | 珠海优特电力科技股份有限公司 | Intelligent anti-misoperation locking device |
| CN103092232A (en) * | 2012-12-26 | 2013-05-08 | 金华电业局 | Semiconductor heat dissipating intelligent terminal cabinet based on solar energy electric plate |
| CN104345201A (en) * | 2013-08-09 | 2015-02-11 | 华为技术有限公司 | Leakage current detection method and device |
| CN203966878U (en) * | 2014-07-16 | 2014-11-26 | 常州电子研究所有限公司 | A kind of electromagnetic lock |
| CN204044230U (en) * | 2014-08-19 | 2014-12-24 | 国家电网公司 | With the high voltage display device that error proof locking system of microcomputer is supporting |
| CN204044232U (en) * | 2014-08-25 | 2014-12-24 | 武汉共创伏安科技有限公司 | A kind of high voltage display device by monitoring leakage current of an arrester |
| CN204876897U (en) * | 2015-08-10 | 2015-12-16 | 国网浙江省电力公司湖州供电公司 | Prevent mistake device through monitoring leakage current of an arrester's electromagnetic lock |
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Application publication date: 20151230 |
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