CN201393051Y - Circuit breaker with protection function - Google Patents
Circuit breaker with protection function Download PDFInfo
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- CN201393051Y CN201393051Y CN200920149611U CN200920149611U CN201393051Y CN 201393051 Y CN201393051 Y CN 201393051Y CN 200920149611 U CN200920149611 U CN 200920149611U CN 200920149611 U CN200920149611 U CN 200920149611U CN 201393051 Y CN201393051 Y CN 201393051Y
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Abstract
The utility model provides a circuit breaker with the protection function, which comprises a circuit breaker body, a voltage acquisition unit, a current acquisition unit, a processing unit, an execution unit and a communication unit, wherein real-time voltage signals of phase lines are obtained from an electric power circuit by the voltage acquisition unit and are converted into voltage sampling signals; real-time current signals of the phase lines are obtained from the electric power circuit by the current acquisition unit and are converted into current sampling signals; the processing unit is connected with the voltage acquisition unit and the current acquisition unit respectively, and can output a control signal when the voltage sampling signals and the current sampling signals are abnormal; the execution unit is connected with the processing unit, and enables the circuit breaker body to break after the control signal is obtained; and the communication unit is connected with the processing unit and a remote receiving unit respectively for data interaction.
Description
Technical field
The utility model relates to a kind of circuit breaker, particularly be a kind of can the detection to overvoltage, overcurrent and short trouble, and the accurate load control circuit breaker of open circuit.
Background technology
Circuit breaker is a kind of consumptive material important in the power engineering, continuous development along with power technology, circuit breaker is also constantly weeded out the old and bring forth the new, the user mainly concentrates on high security and the reliability the requirement of circuit device at present, and expectation further increases and improve the various functions of circuit breaker by the development of electrical technology.
See also shown in Figure 1A, Figure 1B, its for the interior Machinery Ministry perspective view of existing circuit breaker and A-A to cutaway view; It comprises housing 1, and inner actuator, it generally includes: three phase lines and a zero line, end of incoming cables 41 and leading-out terminal 41 line ball pieces with circuit breaker are electrically connected respectively, inside is provided with the actuating mechanism 22 that opens circuit in order to the spinning movement by swing handle 21, realize between movable contact piece 52 and the stationary contact piece 51 contact with separate, and then the function that reaches the logical of circuit breaker and break, wherein, the described actuating mechanism 22 that opens circuit comprises that is stirred a switch block 221, one magnetictrip 3, be arranged at described switch block 221 bottoms of stirring, one end and described phase line A, B, C is connected, its other end is connected with a described end of stirring switch block 221, and when short circuit appearred in power line, the armature that described magnetictrip 3 comprises spurred the described switch block 221 of stirring, make described movable contact piece 52 and stationary contact piece 51 separately, load and power line are disconnected.But this defencive function is by the response characteristic decision of the tripping coil of described magnetictrip 3 self.
To sum up still there is following defective in existing circuit breaker:
At first, can't be to overcurrent, the overvoltage fault realizes load control, thereby brings hidden danger to safety utilization of electric power;
Secondly, can't change the standard of overcurrent, overvoltage, promptly cannot be adjustable, belong to unallowable overcurrent, overvoltage fault according to different which kind of situations of electricity consumption standard definition, thereby produce the action of opening circuit;
At last, for the startup of some power consumption equipment, when the excessive phenomenon of power line short time voltage, electric current took place, misinterpretation may appear in circuit breaker, thinks overcurrent or overvoltage fault, thereby causes line broken circuit.
Also do not occur specific product at present and address the above problem, this also becomes a difficult problem that always perplexs management of power use department and electricity consumer.
In view of above-mentioned defective, the utility model creator is through research and practice obtain this creation finally for a long time.
Summary of the invention
The purpose of this utility model is, a kind of circuit breaker with defencive function is provided, in order to overcome above-mentioned defective.
For achieving the above object, the technical solution adopted in the utility model is, a kind of circuit breaker with defencive function is provided, and it comprises a breaker body, also comprises:
One voltage acquisition unit, it obtains the real-time voltage signal of each phase line and transfers voltage sampling signal to from described power circuit;
One current acquisition unit, it obtains the real-time current signal of each phase line and transfers current sampling signal to from described power circuit;
One processing unit, it is connected with the current acquisition unit with described voltage acquisition unit respectively, when abnormal conditions appear in described voltage sampling signal and current sampling signal, exports a control signal;
One performance element, it is connected with described processing unit, after obtaining described control signal, makes described breaker body produce the action of opening circuit;
One communication unit, it is connected with a described processing unit and a long-range unit of accepting respectively, carries out data interaction.
Wherein, described voltage acquisition unit comprises:
The voltage sample assembly, its quantity is consistent with the described number of phases, and collects real-time voltage signal from described power line;
Filter rectifier, it receives described real-time voltage signal, in order to carry out filter rectification, the voltage sampling signal of output direct current.
Preferable, described voltage sample assembly is a voltage transformer, and its quantity is consistent with the described number of phases, and an end of the primary side of each described voltage transformer is connected with a phase line, the other end is connected with zero line, and its secondary side is exported described real-time voltage signal.
Preferable, described voltage sample assembly is the mechanical structure assembly, it comprises:
Conduction sampling part, its quantity is consistent with the described number of phases, and in order to obtain voltage signal real-time on the power line, it directly contacts the electric power core by direct contacting metal power line or through insulated hull, obtains voltage signal real-time on the power line;
The sampling fixture makes described conduction sampling part and described power line annexation firm.
Wherein, described current acquisition unit comprises:
Current transformer, its quantity is consistent with the described number of phases, and it is set on the corresponding phase line;
Filter rectifier, it is connected with the outlet side of described current transformer, in order to carry out filter rectification, the current sampling signal of output direct current.
For for corresponding electric component provides supply of electric power, also comprise: a power circuit comprises:
A plurality of rectifier diodes, each described rectifier diode is arranged at respectively on the phase line, forms voltage difference between its output and the zero line;
The voltage stabilizing electronic circuit, it comprises: dropping resistor, itself and described rectifier bridge diode output are in series in order to step-down;
The voltage-stabiliser tube of one parallel connection, first electric capacity and second electric capacity are in order to carry out voltage stabilizing, the output of filtering formation stable power.
Because adopting step-down therefore handles in order to obtain reliable signal, also comprise: amplifying circuit, it is arranged on described voltage sample unit or current sample subelement at least between one of them and the described processing unit, in order to described voltage sampling signal and/or current sampling signal are carried out processing and amplifying.
Wherein, described processing unit is a processor, and its detection signal input obtains described voltage sampling signal and current sampling signal; Its control command input is in order to receive delay time, voltage threshold and the current threshold from control command input circuit input.
For fault is carried out instant processing, the utility model also comprises: a pre-process unit, and in order to detect the fault that whether is short-circuited, it comprises:
A plurality of tongue tubes, its quantity is consistent with the number of phases, is separately positioned near each described phase line, an end ground connection of described tongue tube, the other end is connected with the detection signal input of described processor.
Wherein, described performance element comprises:
One electromagnetism actuating mechanism, it is connected with the output of described power circuit, in order to obtain electric power; Make the actuating mechanism action of opening circuit of described breaker body after described electromagnetism actuating mechanism triggers, produce circuit breaker and open circuit;
One carries out circuits for triggering, and its receiving terminal is connected with the control signal output ends of described processor, and its output is connected with the control end of described electromagnetism actuating mechanism.
Preferable, described execution circuits for triggering comprise:
One triode, its base stage is connected with the control signal output ends of described processor, its grounded emitter;
One controllable silicon, its control end is connected with the collector electrode of described triode, and output is connected with the control end of described electromagnetism actuating mechanism.
Wherein, described electromagnetism actuating mechanism comprises:
One electromagnet, its solenoid that has one end is connected with described power circuit output end, and the other end is connected with the emitter of described triode;
The described actuating mechanism that opens circuit comprises stirs switch block, one struck side and described electromagnet armature lean, when stretching out motion, described armature promotes the described switch block of stirring, the described switch block of stirring is rotated, thereby make the actuating mechanism action of opening circuit of described breaker body, described breaker body is opened circuit;
One back-moving spring, it is set in described stirring on the switch block, when described armature is withdrawn, the described switch block of stirring is resetted.
Preferable, also comprise: memory circuit and/or clock circuit are connected with described processor.
The beneficial effects of the utility model are compared with the prior art, and at first, it can be to overcurrent, and the overvoltage fault realizes load control, has reduced Electrical Safety hidden danger;
Secondly, can change the standard of overcurrent, overvoltage, thereby be applicable to the workplace of multiple different current threshold and voltage threshold;
At last, for the startup of some power consumption equipment, when the excessive phenomenon of power line short time voltage, electric current took place, circuit breaker misinterpretation can not occur, has improved the accuracy that opens circuit.
Description of drawings
Figure 1A is the interior Machinery Ministry structural upright schematic diagram of existing circuit breaker;
Figure 1B has the interior Machinery Ministry A-A of circuit breaker now to the sectional structure schematic diagram;
Fig. 2 is the functional block diagram that the utlity model has the circuit breaker of defencive function;
Fig. 3 is the functional block diagram that the utlity model has circuit breaker one preferred embodiment of defencive function;
Fig. 4 is the mechanical structure schematic diagram that the utlity model has circuit breaker one preferred embodiment of defencive function;
Fig. 5 is the electrical block diagram that the utlity model has the preposition unit of circuit breaker of defencive function;
Fig. 6 A the utlity model has the electrical block diagram that the voltage transformer power taking is pressed in the circuit breaker voltage collecting unit of defencive function;
Fig. 6 B the utlity model has in the circuit breaker voltage collecting unit of defencive function the structural representation that mode is pressed in directly power taking;
Fig. 7 is the electrical block diagram that the utlity model has the circuit breaker current collecting unit of defencive function;
Fig. 8 the utlity model has the circuit breaker processing unit of defencive function and the electrical block diagram of performance element;
Fig. 9 is that the mechanical structure signal under the abnormality appears in circuit breaker one preferred embodiment that the utlity model has defencive function.
Embodiment
Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the utility model is above-mentioned.
The breaker body that is proposed in the utility model refers at as circuit breaker in the prior art among Figure 1A, Figure 1B magnetictrip 3 being removed the back and is left, and can finish the main mechanical structure of on-off function.
See also shown in Figure 2ly, it is the functional block diagram that the utlity model has the circuit breaker of defencive function; It comprises a breaker body, and the contribution that the utility model is made prior art mainly is also to comprise: a voltage acquisition unit a, and it obtains the real-time voltage signal of each phase line A, B, C and transfers voltage sampling signal to from described power circuit; One current acquisition unit b, it obtains the real-time current signal of each phase line A, B, C and transfers current sampling signal to from described power circuit, and what be primarily aimed at here is three-phase circuit, certainly two-phase or single-phasely also be suitable for; One processing unit c, it will be converted to real-time magnitude of voltage and current value respectively with each phase line A, B, described voltage sampling signal and current sampling signal that C is corresponding, and compare with voltage threshold that sets in advance and current threshold respectively, in predefined delay time, if real-time magnitude of voltage and current value exist when being higher than one of any situation of described voltage threshold and current threshold all the time, export a control signal; One performance element d after it obtains described control signal, makes described breaker body produce the action of opening circuit.
Owing in described processing unit c, set in advance voltage threshold and thereby current threshold has just had standard, can determine which kind of overcurrent and overvoltage are not allowed to, thereby produce the action of opening circuit, processing unit c described here is generally processor, and it can be single-chip microcomputer or microprocessor; Simultaneously in the prior art, the problem that electric current is excessive, voltage is excessive in the short time that power consumption equipment causes when starting, here the mode that has adopted time-delay to judge, promptly when the power consumption equipment operate as normal, after voltage, current value are relatively stable, voltage in the ifs circuit, electric current are lower than described voltage threshold and current threshold then can not produce the action of opening circuit, thereby has avoided misoperation to align the influence of electricity commonly used.
See also Fig. 3, shown in Figure 4, it is respectively the functional block diagram of circuit breaker one preferred embodiment that the utlity model has defencive function and the mechanical structure schematic diagram of a preferred embodiment; Increased new 26S Proteasome Structure and Function with above-mentioned functions structured flowchart Fig. 2 and Figure 1A, Figure 1B comparison present embodiment, as: a pre-process unit e, in order to detect the fault that whether is short-circuited, when detecting short trouble, detection signal is transferred to described processing unit c, by described processing unit c described control signal is transferred to described performance element d then, finally produces the action of opening circuit.
Also increase and be provided with amplifying circuit f1, f2, it is corresponding with described voltage acquisition unit a and current acquisition unit b respectively, and is arranged between both and the described processing unit c; Can certainly be single be directed to described voltage acquisition unit a and one of them setting of b of current acquisition unit, this is owing to voltage or current strength on common electric power phase line A, B, the C are bigger, therefore be that the semaphore that the processing afterwards of voltage sample or current acquisition produces all advanced step-down, thereby the signal that obtains is more weak, so increased described amplifying circuit f1, f2 in order to amplifying signal.
Further increased memory circuit h and clock circuit i at least one of them, it is connected with described processing unit c respectively, wherein, described memory circuit h is in order to store corresponding program or historical record; Described clock circuit i is in order to provide corresponding clock signals to described processing unit c, in order to the time of origin of incident in clear and definite delay time or the historical record.
Also increased by a control command input circuit k, it typically is a button inputting circuits k1 and a telecommunication circuit k2, wherein, described telecommunication circuit k2 is that the control command with far-end management of power use department is transferred to described processing unit c, and described button inputting circuits k1 generally uses at the electricity consumption scene to the user, the priority level of the data of therefore described telecommunication circuit k2 input will be higher than the priority of described button inputting circuits k1, these control commands mainly be a class can be voltage threshold, current threshold or delay time, these structures all are on the control board 9 that is arranged in the breaker body.
See also shown in Figure 5ly, it is the electrical block diagram that the utlity model has the preposition unit of circuit breaker of defencive function; Described pre-process unit carries out instant processing to short trouble and is provided with, therefore at first to whether detect short circuit, here adopt a plurality of tongue tubes, its quantity is consistent with the number of phases, be that three-phase just adopts 3 tongue tube NS1, NS2, NS3, each tongue tube NS1, NS2, NS3 are separately positioned near described phase line A, B, the C of its correspondence, the end ground connection of described tongue tube NS1, NS2, NS3, the other end be connected with detection signal input Nsa, Nsb, the Nsc of described microprocessor MCU (consulting shown in Figure 8).When detecting the short circuit generation, then near phase line A, the B of correspondence, C, produce stronger magnetic field, thereby make described tongue tube NS1, NS2, NS3 one of them adhesive at least, thereby one of them obtains a low-potential signal at least for the detection signal input Nsa of described microprocessor MCU, Nsb, Nsc, thereby control described release TQ action by described microprocessor MCU, thereby make circuit breaker produce the action of opening circuit.
See also shown in Fig. 6 A, it is to the utlity model has the electrical block diagram that voltage transformer in the circuit breaker voltage collecting unit of defencive function is gathered voltage; Voltage acquisition unit described here and amplifying circuit circuit combine, and wherein said voltage acquisition unit comprises:
The voltage sample assembly, its quantity is consistent with the described number of phases, and collects real-time voltage signal from described power line; Described voltage sample assembly is voltage transformer Ta, Tb, Tc, one end of the primary side of each described voltage transformer Ta, Tb, Tc is connected with phase line A, B, a C, the other end is connected with zero line N, and its secondary side is exported described real-time voltage signal.
Filter rectifier, it receives described real-time voltage signal, in order to carry out filter rectification, the voltage sampling signal of output direct current, wherein said filter circuit is made up of three diode 2D1,2D2,2D3 and three electric capacity 2C1,2C2,2C3, is arranged at the secondary side of each described voltage transformer Ta, Tb, Tc respectively.Through of the amplification of rectifying and wave-filtering voltage signal processed, thereby form described voltage sampling signal by amplifying circuit IC2.
Certainly above-mentioned be by voltage transformer Ta, Tb, Tc as the voltage sample assembly, another execution mode can be handled by the mode that direct power taking is pressed; See also shown in Fig. 6 A, it is to the utlity model has in the circuit breaker voltage collecting unit of defencive function the structural representation that mode is pressed in directly power taking, and voltage sample assembly described here is the mechanical structure assembly, and it comprises:
Sampling fixture 82 makes described conduction sampling part 81 firm with described power line annexation.
See also shown in Figure 7ly, it is the electrical block diagram that the utlity model has the circuit breaker current collecting unit of defencive function; Described current sampling unit is current transformer CT1, CT2, CT3, and its quantity is consistent with the described number of phases, and it is set in corresponding phase line A, B, C last (seeing also shown in Figure 5), and carries out step-down by a dropping resistor 1R1,1R2,1R3 and handle;
Filter rectifier, its outlet side with described current transformer CT1, CT2, CT3 is connected, in order to carry out filter rectification, the current sampling signal of output direct current, wherein said filter circuit is three to be made up of diode 1D1,1D2,1D3 and three electric capacity 1C1,1C2,1C3, is arranged at the two ends of described dropping resistor 1R1,1R2,1R3 respectively.Through the amplification of the induced voltage signal after the rectifying and wave-filtering processing, thereby form described current sampling signal by amplifying circuit IC1.
See also shown in Figure 8ly, it is to the utlity model has the circuit breaker processing unit of defencive function and the electrical block diagram of performance element; That described processing unit adopts here is microprocessor MCU, and its detection signal input Iain, Ibin, Icin, Uain, Ubin, Ucin obtain described voltage sampling signal and current sampling signal; Its control command input is in order to receive delay time, voltage threshold and the current threshold from described control command input circuit input, keyboard input circuit described here is that the control command input of button K1, K2, K3, K4, its direct and described microprocessor MCU of K5 is connected, and described telecommunication circuit, display circuit, clock circuit and described microprocessor MCU are connected.Also comprise a power circuit, respectively provide the supply of electric power of DC stabilization with electrical component in order to give the utility model, it comprises:
Three rectifier diode D1, D2, D3, each described rectifier diode D1, D2, D3 are arranged at respectively on phase line A, B, the C, form voltage difference between its output and the zero line N;
The voltage stabilizing electronic circuit, it comprises: dropping resistor R1, itself and described rectifier bridge diode D1, D2, D3 output are in series, in order to step-down;
The voltage-stabiliser tube DW1 of one parallel connection, first capacitor C 1 and second capacitor C 2 are in order to carry out voltage stabilizing, the output of filtering formation stable power.
Described performance element comprises:
One electromagnetism actuating mechanism, it is connected with the output of described power circuit, in order to obtain electric power; Make the actuating mechanism action of opening circuit of described breaker body after described electromagnetism actuating mechanism triggers, produce circuit breaker and open circuit;
One carries out circuits for triggering, and its receiving terminal is connected with the control signal output ends of described microprocessor MCU, and its output is connected with the control end of described electromagnetism actuating mechanism.
Described execution circuits for triggering comprise:
One triode Q1, its base stage is connected its grounded emitter with the control signal output ends of described processor microprocessor MCU;
One controllable silicon SCR, its control end is connected with the collector electrode of described triode Q1, output is connected with the control end of described electromagnetism actuating mechanism, one of them is confirmed when the delay time internal clock is higher than described voltage threshold or current threshold when described real-time voltage value and current value, and Nsa, Nsb, Nsc are when one of them obtains a low-potential signal at least, the control signal output ends output electronegative potential of described processor microprocessor MCU, thereby described controllable silicon SCR is triggered, thereby make described electromagnetism actuating mechanism action.
Wherein, described electromagnetism actuating mechanism is please shown in Figure 4 in conjunction with consulting, and it comprises:
One electromagnet TQ, solenoid TQXQ one end that it has is connected with described power circuit output end, and the other end is connected with the emitter of described triode Q1;
The described actuating mechanism that opens circuit comprises stirs switch block 221, the armature 61 of one struck side and described electromagnet 6 leans, when stretching out motion, described armature 61 pushes the described switch block 221 of stirring, the described switch block 221 of stirring is rotated, thereby make the actuating mechanism action of opening circuit of described breaker body, produce the circuit breaker action of opening circuit;
One back-moving spring (not shown), it is set in described stirring on the switch block 221, when described armature 61 is withdrawn, the described switch block 221 of stirring is resetted.
See also shown in Figure 9ly, it is that the mechanical structure signal under the abnormality appears in circuit breaker one preferred embodiment that the utlity model has defencive function.It is corresponding with the normal operating condition of Fig. 4; when overcurrent, overvoltage or short trouble occurring; armature 61 actions of described electromagnet 6 push the described switch block 221 of stirring; the described switch block 221 of stirring is rotated; thereby make the actuating mechanism action of opening circuit of described breaker body; finally make described movable contact piece 52 and stationary contact piece 51 change released state into, thereby play a protective role by contact condition.
The above only is preferred embodiment of the present utility model, only is illustrative for the utility model, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes to it in the spirit and scope that the utility model claim is limited, revise, even equivalence, but all will fall in the protection range of the present utility model.
Claims (10)
1, a kind of circuit breaker with defencive function, it comprises a breaker body, it is characterized in that, also comprises:
One voltage acquisition unit, it obtains the real-time voltage signal of each phase line and transfers voltage sampling signal to from described power circuit;
One current acquisition unit, it obtains the real-time current signal of each phase line and transfers current sampling signal to from described power circuit;
One processing unit, it is connected with the current acquisition unit with described voltage acquisition unit respectively, when abnormal conditions appear in described voltage sampling signal and current sampling signal, exports a control signal;
One performance element, it is connected with described processing unit, after obtaining described control signal, makes described breaker body produce the action of opening circuit;
One communication unit, it is connected with a described processing unit and a long-range unit of accepting respectively, carries out data interaction.
2, the circuit breaker with defencive function according to claim 1 is characterized in that, described voltage acquisition unit comprises:
The voltage sample assembly, its quantity is consistent with the described number of phases, and collects real-time voltage signal from described power line;
Filter rectifier, it receives described real-time voltage signal, in order to carry out filter rectification, the voltage sampling signal of output direct current.
3, the circuit breaker with defencive function according to claim 2; it is characterized in that; described voltage sample assembly is a voltage transformer; its quantity is consistent with the described number of phases; one end of the primary side of each described voltage transformer is connected with a phase line; the other end is connected with zero line, and its secondary side is exported described real-time voltage signal.
4, the circuit breaker with defencive function according to claim 1 is characterized in that, described current acquisition unit comprises:
Current transformer, its quantity is consistent with the described number of phases, and it is set on the corresponding phase line;
Filter rectifier, it is connected with the outlet side of described current transformer, in order to carry out filter rectification, the current sampling signal of output direct current.
5, according to any described circuit breaker of claim 1-4, it is characterized in that, also comprise with defencive function: a power circuit, in order to obtain supply of electric power from power line, it comprises:
A plurality of rectifier diodes, each described rectifier diode is arranged at respectively on the phase line, forms voltage difference between its output and the zero line;
The voltage stabilizing electronic circuit, it comprises: dropping resistor, itself and described rectifier bridge diode output are in series in order to step-down;
The voltage-stabiliser tube of one parallel connection, first electric capacity and second electric capacity are in order to carry out voltage stabilizing, the output of filtering formation stable power.
6, the circuit breaker with defencive function according to claim 5; it is characterized in that; also comprise: amplifying circuit; it is arranged on described voltage sample unit or current sample subelement at least between one of them and the described processing unit, in order to described voltage sampling signal and/or current sampling signal are carried out processing and amplifying.
7, the circuit breaker with defencive function according to claim 7 is characterized in that, also comprises: a pre-process unit, and in order to detect the fault that whether is short-circuited, it comprises:
A plurality of tongue tubes, its quantity is consistent with the number of phases, is separately positioned near each described phase line, an end ground connection of described tongue tube, the other end is connected with the detection signal input of described processor.
8, the circuit breaker with defencive function according to claim 7 is characterized in that, described performance element comprises:
One electromagnetism actuating mechanism, it is connected with the output of described power circuit, in order to obtain electric power, makes the actuating mechanism action of opening circuit of described breaker body after described electromagnetism actuating mechanism triggers, and produces circuit breaker and opens circuit;
One carries out circuits for triggering, and its receiving terminal is connected with the control signal output ends of described processor, and its output is connected with the control end of described electromagnetism actuating mechanism.
9, the circuit breaker with defencive function according to claim 8 is characterized in that, described execution circuits for triggering comprise:
One triode, its base stage is connected with the control signal output ends of described processor, its grounded emitter;
One controllable silicon, its control end is connected with the collector electrode of described triode, and output is connected with the control end of described electromagnetism actuating mechanism.
10, the circuit breaker with defencive function according to claim 9 is characterized in that, described electromagnetism actuating mechanism comprises:
One electromagnet, its solenoid that has one end is connected with described power circuit output end, and the other end is connected with the emitter of described triode;
The described actuating mechanism that opens circuit comprises stirs switch block, one struck side and described electromagnet armature lean, when stretching out motion, described armature promotes the described switch block of stirring, the described switch block of stirring is rotated, thereby make the actuating mechanism action of opening circuit of described breaker body, described breaker body is opened circuit;
One back-moving spring, it is set in described stirring on the switch block, when described armature is withdrawn, the described switch block of stirring is resetted.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200920149611U CN201393051Y (en) | 2009-04-07 | 2009-04-07 | Circuit breaker with protection function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920149611U CN201393051Y (en) | 2009-04-07 | 2009-04-07 | Circuit breaker with protection function |
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| CN201393051Y true CN201393051Y (en) | 2010-01-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102170105A (en) * | 2011-05-03 | 2011-08-31 | 厦门士林电机有限公司 | Ground fault protection type electronic tripper tripping device |
| CN102570384A (en) * | 2010-10-05 | 2012-07-11 | Ls产电株式会社 | Earth leakage current breaker |
| WO2012100652A1 (en) * | 2011-01-30 | 2012-08-02 | 湖北盛佳电器设备有限公司 | Frame-supported circuit breaker having automatic locking function |
| CN103107485A (en) * | 2011-11-10 | 2013-05-15 | 深圳市泰昂能源科技股份有限公司 | Modularized micro breaking switch feeder line measuring and control device |
| CN105067998A (en) * | 2015-08-20 | 2015-11-18 | 贵州天义电器有限责任公司 | Voltage and current fluctuation detector |
| US20170115335A1 (en) * | 2015-05-04 | 2017-04-27 | General Electric Company | Systems and methods for monitoring and diagnosing transformer health |
| CN111211811A (en) * | 2020-02-28 | 2020-05-29 | 上海良信电器股份有限公司 | Circuit breaker, circuit breaker system, circuit breaker communication method and device |
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2009
- 2009-04-07 CN CN200920149611U patent/CN201393051Y/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570384A (en) * | 2010-10-05 | 2012-07-11 | Ls产电株式会社 | Earth leakage current breaker |
| WO2012100652A1 (en) * | 2011-01-30 | 2012-08-02 | 湖北盛佳电器设备有限公司 | Frame-supported circuit breaker having automatic locking function |
| CN102170105A (en) * | 2011-05-03 | 2011-08-31 | 厦门士林电机有限公司 | Ground fault protection type electronic tripper tripping device |
| CN103107485A (en) * | 2011-11-10 | 2013-05-15 | 深圳市泰昂能源科技股份有限公司 | Modularized micro breaking switch feeder line measuring and control device |
| CN103107485B (en) * | 2011-11-10 | 2016-01-20 | 深圳市泰昂能源科技股份有限公司 | A kind of modularization miniature circuit breakers feeder line measure and control device |
| US20170115335A1 (en) * | 2015-05-04 | 2017-04-27 | General Electric Company | Systems and methods for monitoring and diagnosing transformer health |
| US10782360B2 (en) * | 2015-05-04 | 2020-09-22 | General Electric Company | Systems and methods for monitoring and diagnosing transformer health |
| CN105067998A (en) * | 2015-08-20 | 2015-11-18 | 贵州天义电器有限责任公司 | Voltage and current fluctuation detector |
| CN111211811A (en) * | 2020-02-28 | 2020-05-29 | 上海良信电器股份有限公司 | Circuit breaker, circuit breaker system, circuit breaker communication method and device |
| CN111211811B (en) * | 2020-02-28 | 2024-03-22 | 上海良信电器股份有限公司 | Circuit breaker, circuit breaker system, and circuit breaker communication method and device |
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