CN2475209Y - Intelligent safety auto-controlled circuit breaker - Google Patents

Intelligent safety auto-controlled circuit breaker Download PDF

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Publication number
CN2475209Y
CN2475209Y CN 01221144 CN01221144U CN2475209Y CN 2475209 Y CN2475209 Y CN 2475209Y CN 01221144 CN01221144 CN 01221144 CN 01221144 U CN01221144 U CN 01221144U CN 2475209 Y CN2475209 Y CN 2475209Y
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CN
China
Prior art keywords
circuit
current sample
input
magnetictrip
sample circuit
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Expired - Fee Related
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CN 01221144
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Chinese (zh)
Inventor
郭经顺
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Individual
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Individual
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Priority to CN 01221144 priority Critical patent/CN2475209Y/en
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Publication of CN2475209Y publication Critical patent/CN2475209Y/en
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Abstract

The utility model relates to an intelligent safety auto-controlled circuit breaker used for electromechanical control. The input terminal of an operating current sample circuit is provided with three current mutual inductors, and the terminal with the same name is combined into one way by a rectifying tube. One way of the output terminal of the operating current sample circuit is directly connected with the input terminal of a switching circuit via a potentiometer, and the other way is connected with the input terminal of the switching circuit via a signal amplifying circuit and timing circuit. The input terminal of a bridge rectifying circuit is connected in series with electromagnetic coils of an electromagnetic tripper, and contact points of the electromagnetic tripper are respectively connected in series with three fire wires. The utility model has the advantages of simultaneously protecting electromechanical devices from overloading, short circuit, broken circuit, electrical leakage and instantaneous current impact, and is a generation changing product for protecting and controlling the electromechanical devices.

Description

Intelligent and safe is controlled circuit breaker automatically
The utility model relates to a kind of Electromechanical Control and controls circuit breaker automatically with intelligent and safe.
At present, the overload of electromechanical equipment, transient current impact, short circuit, open circuit, protection such as electric leakage, adopt different electrical equipment to protect respectively; protection equipment is many, installation and maintenance difficulty, cost height; and the life-span is short, and technical indicator is low, is difficult to satisfy the needs of present electromechanical equipment.
The purpose of this utility model be to design a kind of can be simultaneously to overload, the short circuit of electromechanical equipment, open circuit, electric leakage, transient current impact the intelligent and safe that shields and control circuit breaker automatically.
The utility model is achieved in that it comprises the operating current sample circuit, the leakage current sample circuit, signal amplification circuit, switching circuit, bridge rectifier and magnetictrip, the input of operating current sample circuit is three current transformer LG1 that are installed with live wire respectively, LG2, LG3, three current transformer LG1, LG2, the end of the same name of LG3 is respectively by rectifying tube D1, D2, D3 is combined into one the tunnel, the output of operating current sample circuit directly is connected on the input of switching circuit by potentiometer W1 one tunnel, another road is by potentiometer W2, signal amplification circuit, timing circuit is connected on the input of switching circuit, signal amplification circuit and switching circuit are powered by bridge rectifier, the solenoid J of the input serial connection magnetictrip of bridge rectifier, the contact J1 of magnetictrip is connected in series with three live wires respectively, the input of leakage current sample circuit is the current transformer LG4 that is installed with three live wires and zero line simultaneously, and the output of leakage current sample circuit is connected on the input of switching circuit by potentiometer W4.
At the output of described bridge rectifier and the input of signal amplification circuit, be connected to the button TA3 and the resistance R 5 of mutual series connection, whether normal with simulation test the utility model overload protection.
Outside the current transformer of described leakage current sample circuit, connect the button TA2 and the resistance R 3 of mutual series connection on two of two ends live wires, whether normal with the electric leakage of simulation test the utility model.
Be attempted by on the pair of contact of described magnetictrip after button TA1, electricity group R1 and the neon bulb RD1 series connection, whether insulate over the ground with measurement circuit or equipment.
The utility model compared with prior art has following advantage: (1), because the output of operating current sample circuit directly is connected on the input of switching circuit by potentiometer one tunnel, another road is connected on the input of switching circuit by signal amplification circuit, timing circuit, so can shield to transient current impact, short circuit and overload; (2), owing to the leakage current sample circuit is arranged, so can shield to electric leakage; (3), because electric power disconnection must cause that other two live wire electric currents increase, so can shield to opening circuit; (4), because the utility model has overload, electric leakage, short circuit, the simulation test circuit opens circuit, insulate, so can be to overload, transient current impact, electric leakage, short circuit, open circuit and the simulation test adjustment is carried out in insulation, improved the flexibility of the utility model use, maintenance greatly; (5), simple in structure, easily processing and manufacturing, cost is low, is the regeneration product of electromechanical equipment protection control.
Be elaborated below in conjunction with accompanying drawing.
Accompanying drawing is the utility model circuit theory diagrams.
The utility model comprises operating current sample circuit, leakage current sample circuit, signal amplification circuit, switching circuit, bridge rectifier, magnetictrip, power indicating circuit and warning circuit, as shown in drawings.The input of operating current sample circuit is three current transformer LG1, the LG2, the LG3 that are installed with live wire respectively, end of the same name one end of three current transformer LG1, LG2, LG3 is ground connection simultaneously, the other end is combined into one the tunnel by rectifying tube D1, D2, D3 respectively, becomes the output of operating current sample circuit; Between the output of operating current sample circuit and the ground and meet capacitor C 5, potentiometer W1 and W2.Capacitor C 5 is a filter capacitor, and can reduce because the misoperation that power network fluctuation produces.Potentiometer W1 directly is connected on the input of switching circuit switching tube BG2 by diode D8, and regulator potentiometer W1 can set the size of temporary impact protective current.The base stage of the triode BG1 that potentiometer W2 is connected on by diode D4, regulator potentiometer W2 can set the size of work protective current.Be connected to resistance R 7 and voltage-stabiliser tube 2CW between triode BG1 emitter and the ground, voltage-stabiliser tube 2CW and resistance R 7 also connect, the collector electrode of BG1 is connected to resistance R 6, potentiometer W3 one terminates between BG1 and the voltage-stabiliser tube 2CW, the other end is connected on the input of switching circuit switching tube BG2 by diode D5~D7, and potentiometer W3 can set the overload time length that allows overload current.Switching circuit is powered by bridge rectifier.Capacitor C 2 is a timing capacitor, and this electric capacity one terminates between potentiometer W3 and the diode D5~D7, other end ground connection.The collector resistance R6 of triode BG1 is connected on the positive pole of bridge rectifier output, the minus earth of bridge rectifier output, and the input of bridge rectifier that is serially connected with the solenoid J of magnetictrip is connected on two live wire A2, the C2.Between the base stage of the positive pole of described bridge rectifier output and signal amplification circuit triode BG1, be connected to mutual button TA3 that connects and resistance R 5, whether normal with simulation test the utility model overload protection.The contact J1 of magnetictrip is connected in series with three live wires respectively.At the J1 two ends, contact of the magnetictrip of a live wire and meet button TA1, electricity group R1 and the neon bulb RD1 of mutual series connection, whether insulate with simulation test circuit or equipment.The input of leakage current sample circuit is the current transformer LG4 that is installed with three live wires and zero line simultaneously; the end ground connection of current transformer LG4; the other end is connected on the input of switching circuit switching tube BG2 by potentiometer W4 and diode D9; at current transformer LG4 two ends and connect capacitor C 1, can carry out filtering delay-time to leakage current protection.Potentiometer W4 can set the size of earth leakage protective electric current.Outside by the current transformer LG4 two ends of two live wires and meet the resistance R 3 and the button TA2 of mutual series connection, whether working properly with the electric leakage of test the utility model, protection.Between three live wires, be connected to resistance R 8 and luminous tube RD2, resistance R 9 and luminous tube RD3, resistance R 10 and luminous tube RD4 respectively, form power indicating circuit.Warning circuit comprises normally opened contact ZT and alarm, and normally opened contact ZT is contained in by the armature of magnetictrip, can make normally opened contact ZT closure during the magnetictrip action.Capacitor C 3 one termination powers of alarm, another termination rectifier diode D10 positive pole, the supply pin of the negative pole of rectifier diode D10 integrated package MC taking alarm, the output termination loud speaker Y of warning integrated package MC, another supply pin of warning integrated package MC connects power supply by normally opened contact ZT, meets filter capacitor C4 between two supply pins of warning integrated package MC.

Claims (5)

1, a kind of intelligent and safe is controlled circuit breaker automatically, it is characterized in that: it comprises the operating current sample circuit, the leakage current sample circuit, signal amplification circuit, switching circuit, bridge rectifier and magnetictrip, the input of operating current sample circuit is three current transformer LG1 that are installed with live wire respectively, LG2, LG3, three current transformer LG1, LG2, the end of the same name of LG3 is respectively by rectifying tube D1, D2, D3 is combined into one the tunnel, the output of operating current sample circuit directly is connected on the input of switching circuit by potentiometer W1 one tunnel, signal amplification circuit is passed through on another road, timing circuit, be connected on the input of switching circuit, signal amplification circuit and switching circuit are powered by bridge rectifier, the solenoid J of the input serial connection magnetictrip of bridge rectifier, the contact J1 of magnetictrip is connected in series with three live wires respectively, the input of leakage current sample circuit is the current transformer LG4 that is installed with three live wires and zero line simultaneously, and the output of leakage current sample circuit is connected on the input of switching circuit by potentiometer W4.
2, circuit breaker according to claim 1, it is characterized in that: warning circuit comprises normally opened contact ZT and alarm, normally opened contact ZT is contained in by the armature of magnetictrip, can make normally opened contact ZT closure during the magnetictrip action, capacitor C 3 one termination powers of alarm, another termination rectifier diode D10 positive pole, the supply pin of the negative pole of rectifier diode D10 integrated package MC taking alarm, the output termination loud speaker Y of warning integrated package MC, another supply pin of warning integrated package MC connects power supply by normally opened contact ZT, connects capacitor C 4 between two supply pins of warning integrated package MC.
3, circuit breaker according to claim 1 is characterized in that: at the output of described bridge rectifier and the input of signal amplification circuit, be connected to the button TA3 and the resistance R 5 of mutual series connection.
4, circuit breaker according to claim 1 is characterized in that: the button TA2 and the resistance R 3 that connect mutual series connection outside the current transformer of described leakage current sample circuit on two of two ends live wires.
5, circuit breaker according to claim 1 is characterized in that: be attempted by on the pair of contact of described magnetictrip after button TA1, electricity group R1 and the neon bulb RD1 series connection.
CN 01221144 2001-04-14 2001-04-14 Intelligent safety auto-controlled circuit breaker Expired - Fee Related CN2475209Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 01221144 CN2475209Y (en) 2001-04-14 2001-04-14 Intelligent safety auto-controlled circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 01221144 CN2475209Y (en) 2001-04-14 2001-04-14 Intelligent safety auto-controlled circuit breaker

Publications (1)

Publication Number Publication Date
CN2475209Y true CN2475209Y (en) 2002-01-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 01221144 Expired - Fee Related CN2475209Y (en) 2001-04-14 2001-04-14 Intelligent safety auto-controlled circuit breaker

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CN (1) CN2475209Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100409520C (en) * 2002-03-13 2008-08-06 默勒有限公司 Circuit breaker comprising an electronic trigger and a bypass switch
CN103135000A (en) * 2011-11-22 2013-06-05 海洋王照明科技股份有限公司 Testing circuit of temperature protector and testing device with same
CN104953537A (en) * 2015-07-27 2015-09-30 福一开电气有限公司 Overload protection switching device
CN108457559A (en) * 2018-05-16 2018-08-28 乐辉 A kind of intelligent door closer based on human-body infrared sensing and fire-fighting link

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100409520C (en) * 2002-03-13 2008-08-06 默勒有限公司 Circuit breaker comprising an electronic trigger and a bypass switch
CN103135000A (en) * 2011-11-22 2013-06-05 海洋王照明科技股份有限公司 Testing circuit of temperature protector and testing device with same
CN103135000B (en) * 2011-11-22 2015-07-22 海洋王照明科技股份有限公司 Testing circuit of temperature protector and testing device with same
CN104953537A (en) * 2015-07-27 2015-09-30 福一开电气有限公司 Overload protection switching device
CN108457559A (en) * 2018-05-16 2018-08-28 乐辉 A kind of intelligent door closer based on human-body infrared sensing and fire-fighting link
CN108457559B (en) * 2018-05-16 2024-03-01 西朗门业(苏州)有限公司 Intelligent door closer based on human body infrared sensing and fire-fighting linkage

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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