CN204116863U - Electronic type molded case circuit breaker controller - Google Patents
Electronic type molded case circuit breaker controller Download PDFInfo
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- CN204116863U CN204116863U CN201420476152.4U CN201420476152U CN204116863U CN 204116863 U CN204116863 U CN 204116863U CN 201420476152 U CN201420476152 U CN 201420476152U CN 204116863 U CN204116863 U CN 204116863U
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Abstract
A kind of electronic type molded case circuit breaker controller, comprise power circuit, single-chip microcomputer treatment circuit, display circuit and execution driving circuit that signal acquisition circuit, circuit of adjusting, inside are provided with single-chip microcomputer, described power circuit provides working power for controller, signal acquisition circuit output is connected with single-chip microcomputer treatment circuit input end, circuit output end of adjusting is connected with single-chip microcomputer treatment circuit input end, single-chip microcomputer treatment circuit output terminal respectively with display circuit input end, perform driving circuit input end and be connected; Described circuit of adjusting comprises the setting parameter circuit with sectional type potentiometer that at least one represents different setting parameter.Described electronic type molded case circuit breaker controller, compact conformation, rationally distributed, be provided with multiple setting parameter circuit with sectional type potentiometer, achieve the setting of corresponding multi-protective function parameter and adjust intuitively easy to operate, user-friendly.
Description
Technical field
The utility model relates to low-voltage circuit breaker field, particularly relates to a kind of electronic type molded case circuit breaker controller.
Background technology
Isolating switch is widely used in low-voltage power system, for distributing electric energy and protection circuit, power supply and consumer, is one of protective device main in low-voltage distribution system.Along with the development of intelligent power grid technology and power distribution automation, improving constantly of isolating switch intelligent level, it is also proposed higher requirement for the breaker controller matched with it.Existing breaker controller complex structure, difficult in maintenance, function singleness, cannot meet growing intelligent grid construction requirements.And existing breaker controller setting mode imperfection, adjust easy to operate directly perceived time, have that required material price is high, the shortcoming of complex circuit; When realizing that needed for setting mode, material price is low, there is the defect of malfunction of adjusting.Meanwhile, also there is the problem that Power supply reliability is not high and voltage acquisition signal accuracy is not high in the controller of existing isolating switch.
Summary of the invention
The purpose of this utility model is the defect overcoming prior art, provide a kind of circuit simple, adjust easy to operate directly perceived and realize the electronic type molded case circuit breaker controller of multi-protective function optimum configurations.
For achieving the above object, the utility model have employed following technical scheme:
A kind of electronic type molded case circuit breaker controller, comprises power circuit 1, signal acquisition circuit 2, circuit 3 of adjusting, inside is provided with single-chip microcomputer treatment circuit 4, the display circuit 5 of single-chip microcomputer and performs driving circuit 6.Described power circuit 1 provides working power for controller, signal acquisition circuit 2 output terminal is connected with single-chip microcomputer treatment circuit 4 input end, circuit 3 output terminal of adjusting is connected with single-chip microcomputer treatment circuit 4 input end, single-chip microcomputer treatment circuit 4 output terminal respectively with display circuit 5 input end, perform driving circuit 6 input end and be connected; Described circuit 3 of adjusting comprises the setting parameter circuit with sectional type potentiometer that at least one represents different setting parameter.Compact conformation, rationally distributed, be provided with multiple setting parameter circuit with sectional type potentiometer, achieve the setting of corresponding multi-protective function parameter and adjust intuitively easy to operate, user-friendly.
Further, sectional type potentiometer one end of described setting parameter circuit is connected with power supply, other end ground connection, and mid-point tap is by being connected to the A/D input end of single-chip microcomputer after resistance and electric capacity composition differentiating circuit.Inhibit disturbing pulse and useless pulse, ensure signal quality.
Further, the sectional type potentiometer of each setting parameter circuit described has the segmentation that n may correspond to different output resistance, respectively n voltage arranging of corresponding single-chip microcomputer, the hop count voltage that arranges corresponding to single-chip microcomputer of described sectional type potentiometer segmentation is in direct ratio, n be greater than 1 integer.
Further, described circuit 3 of adjusting comprises four setting parameter circuit, and the sectional type potentiometer of each setting parameter circuit has the segmentation that eight may correspond to different output resistance.
Further, described power circuit 1 comprises the transformer and the saturated mutual inductor of three phase velocities that are connected with power supply, in parallel by unidirectional diode between described transformer and the saturated mutual inductor of three phase velocities, ensure that the reliability of power supply.
Further, described power circuit 1 also comprises the rectification circuit, mu balanced circuit, the reduction voltage circuit that connect successively, and described transformer is connected with two rectification circuits respectively with the saturated mutual inductor of three phase velocities.
Further, described signal acquisition circuit 2 comprises voltage signal acquisition circuit, described voltage signal acquisition circuit comprise suppress undesired signal voltage signal buffer circuit, to the voltage signal filtering circuit of voltage signal high-pass filtering and the voltage signal amplifying circuit that amplifies voltage signal; Voltage signal buffer circuit output terminal is connected with voltage signal filtering circuit input end, and described voltage signal filtering circuit output terminal is connected with voltage signal input amplifier.Initialize signal is processed, ensures the precision of signals collecting.
Further, described voltage signal buffer circuit comprises voltage dependent resistor (VDR) RV1, the 8th resistance R8, the 9th resistance R9, the 11 transformer T1, one end of voltage dependent resistor (VDR) RV1 is connected with one end of the 8th resistance R8, the other end of voltage dependent resistor (VDR) RV1 is connected with one end of transformer T1 input end, the other end of the 8th resistance R8 is connected with the transformer T1 input end other end, the output terminal of transformer T1 is connected with the two ends of the 9th resistance R9, gets rid of the interference of garbage signal.
Further, described voltage signal filtering circuit comprises the tenth resistance R10, 11 resistance R11, 12 resistance R12, 13 resistance R13, 4th electric capacity C4, 5th electric capacity C5, 3rd amplifier U3, one end of tenth resistance R10 is connected with one end of the 5th electric capacity C5, the other end of the 5th electric capacity C5 is connected with one end of the 11 resistance R11, the other end of the 11 resistance R11 is connected with the positive pole of the 3rd amplifier U3, one end of 4th electric capacity C4 connects with the line between the tenth resistance R10 and the 5th electric capacity C5, the other end of the 4th electric capacity C4 is connected with one end of the 12 resistance R12, the other end of the 12 resistance R12 is connected with the negative pole of the 3rd amplifier U3, 13 resistance R13 one end connects with the line between the 12 resistance R12 and the negative pole of the 3rd amplifier U3, the other end of the 13 resistance R13 is connected with the output terminal of the 3rd amplifier U3.To signal transmission high-pass filtering, get rid of the interference of garbage signal.
Further, described voltage signal amplifying circuit comprises the 14 resistance R14, 15 resistance R15, 16 resistance R16, 17 resistance R17, 18 resistance R18, 4th amplifier U4, 5th amplifier U5, 6th amplifier U6, first diode D1, one end of 14 resistance R14 is connected with one end of the 15 resistance R15, the other end of the 14 resistance R14 is connected with the positive pole of the 4th amplifier U4, the other end of the 15 resistance R15 is connected with the positive pole of the 5th amplifier U5, 16 resistance R16 one end ground connection, the other end is connected with the negative pole of the 5th amplifier U5, the positive pole of the first diode D1 is connected with the output terminal of the 5th amplifier U5, the negative pole of the first diode D1 is connected with the positive pole of the 5th amplifier U5, the negative pole of the 4th amplifier U4 is connected with the negative pole of the first diode D1, one end of 17 resistance R17 is connected with the positive pole of the 4th amplifier U4, the other end of the 17 resistance R17 is connected with the output terminal of the 4th amplifier U4, the output terminal of the 4th amplifier U4 is connected with the positive pole of the 6th amplifier U6, 18 resistance R18 one end is connected with the negative pole of the 6th amplifier U6, the other end is connected with the output terminal of the 6th amplifier U6.Amplification process is carried out to signal, improves the precision of signals collecting.
Electronic type molded case circuit breaker controller of the present utility model; compact conformation, rationally distributed, be provided with multiple setting parameter circuit with sectional type potentiometer; achieve the setting of corresponding multi-protective function parameter and adjust intuitively easy to operate, user-friendly.In addition, adopt the pattern of dual power supply, power supply is reliable.Be provided with in voltage signal acquisition circuit and suppress the voltage signal buffer circuit of undesired signal and the voltage signal filtering circuit to voltage signal high-pass filtering, improve the quality of voltage signal sampling.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present utility model;
Fig. 2 is circuit theory diagrams of adjusting of the present utility model;
Fig. 3 is potentiometer output voltage curve map of the present utility model;
Fig. 4 is power circuit principle figure of the present utility model;
Fig. 5 is voltage signal acquisition schematic block circuit diagram of the present utility model;
Fig. 6 is voltage signal buffer circuit schematic diagram of the present utility model;
Fig. 7 is that this uses novel voltage signal filtering circuit schematic diagram;
Fig. 8 is voltage signal amplifying circuit schematic diagram of the present utility model.
Embodiment
Below in conjunction with the embodiment that accompanying drawing 1 to 8 provides, further illustrate the embodiment of electronic type molded case circuit breaker controller of the present utility model.Electronic type molded case circuit breaker controller of the present utility model is not limited to the description of following examples.
As shown in Figure 1, a kind of electronic type molded case circuit breaker controller, comprise power circuit 1, signal acquisition circuit 2, circuit 3 of adjusting, single-chip microcomputer treatment circuit 4, display circuit 5 and perform driving circuit 6.Described power circuit 1 respectively with signal acquisition circuit 2, single-chip microcomputer treatment circuit 4, perform driving circuit 6 and be connected, the output terminal of signal acquisition circuit 2 is connected with single-chip microcomputer treatment circuit 4 input end, circuit 3 output terminal of adjusting is connected with single-chip microcomputer treatment circuit 4 input end, and the output terminal of single-chip microcomputer treatment circuit 4 is connected with the input end of display circuit 5, the input end that performs driving circuit 6 respectively.Other circuit that described potential circuit 1 is controller provides working power; Current signal, by sampling resistor, is converted to the voltage signal of equal proportion, is supplied to single-chip microcomputer treatment circuit 4 by described signal acquisition circuit 2; Setting valve is transferred to single-chip microcomputer treatment circuit 4 with the resistance signal of correspondence by described circuit 3 of adjusting; Outside is inputted simulating signal and converts digital signal to by described single-chip microcomputer treatment circuit 4, and carries out the control of corresponding guarded command, such as, transship, under-voltage etc.; Described display circuit 5 carrys out the ruuning situation of indicating control system with LED display mode; Described execution driving circuit 6 receives the Single-chip Controlling order transmitted by single-chip microcomputer treatment circuit 4 whether to drive the dropout of magnetic flux.Described electronic type molded case circuit breaker controller inner module adopts integrated circuit.
As shown in Figure 2, described circuit 3 of adjusting adopts sectional type potentiometer to be setting means, comprise at least one sectional type potentiometer one end with the setting parameter circuit described in setting parameter circuit of sectional type potentiometer representing different setting parameter to be connected with power supply, other end ground connection, mid-point tap is by being connected to the A/D input end of single-chip microcomputer after resistance and electric capacity composition differentiating circuit.In described circuit 3 of adjusting, each setting parameter circuit correspondence represents a setting parameter, and setting parameter circuit comprises sectional type potentiometer, and described sectional type potentiometer arrow points direction is adjusts a little.Based on designing in the middle of practical application above, circuit 3 of adjusting comprises four setting parameter circuit, and four setting parameter circuit comprise sectional type potentiometer RP1, RP2, RP3 and RP4 respectively, represent four setting parameters, such as overload currents etc. respectively.The structure of four setting parameter circuit is identical, to comprise the setting parameter circuit of sectional type potentiometer RP1, in figure, the first splicing ear A1 of potentiometer RP1 one end connects power supply VCC, second splicing ear A2 of the other end connects power supply ground, and centre tap ZA is connected to the A/D input end of single-chip microcomputer after suppressing the differentiating circuit of disturbing pulse and useless pulse by R1 and C1 composition.
As shown in Figure 3, the sectional type potentiometer of each setting parameter circuit described has the segmentation that n may correspond to different output resistance, each section has corresponding output resistance, and when 0-n-1 section is adjusted in outside, described single-chip microcomputer just has the voltage that corresponding V0-Vn-1 is different.The hop count magnitude of voltage that arrange corresponding to single-chip microcomputer of described sectional type potentiometer segmentation is in direct ratio, n be greater than 1 integer.As shown in Figure 3, described sectional type potentiometer has the segmentation that eight may correspond to different output resistance, each section has corresponding output resistance, when 0-7 section is adjusted in outside, single-chip microcomputer just has the voltage that corresponding V0-V7 is different, single-chip microcomputer treatment circuit 4 reads corresponding setting valve, realizes adjusting input function.
Power convert can be exported different brackets direct supply by described power circuit 1, as shown in Figure 1, exportable+the 12V of power circuit 1 ,+5V direct supply, + 12V the output terminal of described power circuit 1 is connected with the input end performing driving circuit 6, and+5V output terminal is connected with the input end of sample circuit 2, the input end of single-chip microcomputer treatment circuit 4 respectively.As a kind of optimal technical scheme of the present utility model: as shown in Figure 4, described power circuit 1 is by transformer and the saturated mutual inductor duplex feeding of three phase velocities, described power circuit 1 comprises the transformer and the saturated mutual inductor of three phase velocities that are connected with power supply, in parallel by unilateral diode between described transformer and the saturated mutual inductor of three phase velocities, which side power supply which side voltage higher position adopt automatically, to improve the reliability of controller.Described power circuit 1 also comprises the rectification circuit, mu balanced circuit, the reduction voltage circuit that connect successively, AC power is converted to the direct supply of different voltage, and described transformer is connected with two rectification circuits respectively with the saturated mutual inductor of three phase velocities.Traditional power circuit, when short-circuit state appears in isolating switch, owing to there is short-circuit state, makes supply voltage very low, causes transformer inputs power supply very low, and transformer frequency response cannot out-put supply, and controller will be caused to work.But, owing to there is short-circuit state, will there is very large short-circuit current in power circuit 1 of the present utility model, makes fast saturated mutual inductor produce power supply, can power to controller work, ensure the reliability of short-circuit protection simultaneously.Namely when transformer does not have out-put supply, as long as there is electric current in circuit, power supply can be produced by the saturated mutual inductor of speed, the work of supply controller, the reliability of the controller greatly provided.
Described signal acquisition circuit 2 comprises current signal Acquisition Circuit and voltage signal acquisition circuit, as a kind of optimal technical scheme of the present utility model as shown in Figure 5, described voltage signal acquisition circuit comprise suppress undesired signal voltage signal buffer circuit, to the voltage signal filtering circuit of voltage signal high-pass filtering and the voltage signal amplifying circuit that amplifies voltage signal, described voltage signal buffer circuit output terminal is connected with voltage signal filtering circuit input end, and described voltage signal filtering circuit output terminal is connected with voltage signal input amplifier.
As shown in Figure 6, described voltage signal buffer circuit comprises voltage dependent resistor (VDR) RV1, the 8th resistance R8, the 9th resistance R9, the first transformer T1.One end of voltage dependent resistor (VDR) RV1 is connected with one end of the 8th resistance R8, the other end of voltage dependent resistor (VDR) RV1 is connected with one end of the first transformer T1 input end, the other end of the 8th resistance R8 is connected with the first transformer T1 input end other end, and the output terminal of the first transformer T1 is connected with the two ends of the 9th resistance R9.
As shown in Figure 7, described voltage signal filtering circuit comprises the tenth resistance R10, the 11 resistance R11, the 12 resistance R12, the 13 resistance R13, the 4th electric capacity C4, the 5th electric capacity C5, the 3rd amplifier U3.One end of tenth resistance R10 is connected with one end of the 5th electric capacity C5, the other end of the 5th electric capacity C5 is connected with one end of the 11 resistance R11, the other end of the 11 resistance R11 is connected with the positive pole of the 3rd amplifier U3, one end of 4th electric capacity C4 connects with the line between the tenth resistance R10 and the 5th electric capacity C5, the other end of the 4th electric capacity C4 is connected with one end of the 12 resistance R12, the other end of the 12 resistance R12 is connected with the negative pole of the 3rd amplifier U3, 13 resistance R13 one end connects with the line between the 12 resistance R12 and the negative pole of the 3rd amplifier U3, the other end of the 13 resistance R13 is connected with the output terminal of the 3rd amplifier U3.
As shown in Figure 8, described voltage signal amplifying circuit comprises the 14 resistance R14, the 15 resistance R15, the 16 resistance R16, the 17 resistance R17, the 18 resistance R18, the 4th amplifier U4, the 5th amplifier U5, the 6th amplifier U6, the first diode D1.One end of 14 resistance R14 is connected with one end of the 15 resistance R15, the other end of the 14 resistance R14 is connected with the positive pole of the 4th amplifier U4, the other end of the 15 resistance R15 is connected with the positive pole of the 5th amplifier U5, 16 resistance R16 one end ground connection, the other end is connected with the negative pole of the 5th amplifier U5, the positive pole of the first diode D1 is connected with the output terminal of the 5th amplifier U5, the negative pole of the first diode D1 is connected with the positive pole of the 5th amplifier U5, the negative pole of the 4th amplifier U4 is connected with the negative pole of the first diode D1, one end of 17 resistance R17 is connected with the positive pole of the 4th amplifier U4, the other end of the 17 resistance R17 is connected with the output terminal of the 4th amplifier U4, the output terminal of the 4th amplifier U4 is connected with the positive pole of the 6th amplifier U6, 18 resistance R18 one end is connected with the negative pole of the 6th amplifier U6, the other end is connected with the output terminal of the 6th amplifier U6.
Electronic type molded case circuit breaker controller of the present utility model, compact conformation, rationally distributed.Adopt the pattern of dual power supply, power supply is reliable; Be provided with in voltage signal acquisition circuit and suppress the voltage signal buffer circuit of undesired signal and the voltage signal filtering circuit to voltage signal high-pass filtering, improve the quality of voltage signal sampling; Circuit 3 of adjusting is provided with multiple setting parameter circuit with sectional type potentiometer, the multiple setting parameter of representative that described multiple sectional type potentiometer is corresponding, achieves the setting of corresponding multi-protective function parameter; Described potentiometer is sectional type potentiometer, and electronic type molded case circuit breaker controller tuning mode adopts sectional type potentiometer to adjust, and avoid the result of adjusting caused due to personnel's difference to differ, and it is intuitively easy to operate to adjust, user-friendly.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection domain of the present utility model.
Claims (10)
1. an electronic type molded case circuit breaker controller, comprise power circuit (1), signal acquisition circuit (2), circuit of adjusting (3), inside be provided with single-chip microcomputer treatment circuit (4), the display circuit (5) of single-chip microcomputer and perform driving circuit (6), it is characterized in that:
Described power circuit (1) provides working power for controller, signal acquisition circuit (2) output terminal is connected with single-chip microcomputer treatment circuit (4) input end, circuit (3) output terminal of adjusting is connected with single-chip microcomputer treatment circuit (4) input end, single-chip microcomputer treatment circuit (4) output terminal respectively with display circuit (5) input end, perform driving circuit (6) input end and be connected; Described circuit of adjusting (3) comprises the setting parameter circuit with sectional type potentiometer that at least one represents different setting parameter.
2. electronic type molded case circuit breaker controller according to claim 1, it is characterized in that: sectional type potentiometer one end of described setting parameter circuit is connected with power supply, other end ground connection, mid-point tap is by being connected to the A/D input end of single-chip microcomputer after resistance and electric capacity composition differentiating circuit.
3. electronic type molded case circuit breaker controller according to claim 1, it is characterized in that: the sectional type potentiometer of each setting parameter circuit described has the segmentation that n may correspond to different output resistance, n voltage of corresponding single-chip microcomputer setting respectively, the hop count voltage that arranges corresponding to single-chip microcomputer of described sectional type potentiometer segmentation is in direct ratio, n be greater than 1 integer.
4. electronic type molded case circuit breaker controller according to claim 3, it is characterized in that: described circuit of adjusting (3) comprises four setting parameter circuit, the sectional type potentiometer of each setting parameter circuit has the segmentation that eight may correspond to different output resistance.
5. electronic type molded case circuit breaker controller according to claim 1, it is characterized in that: described power circuit (1) comprises the transformer and the saturated mutual inductor of three phase velocities that are connected with power supply, in parallel by unidirectional diode between described transformer and the saturated mutual inductor of three phase velocities.
6. electronic type molded case circuit breaker controller according to claim 5, it is characterized in that: described power circuit (1) also comprises the rectification circuit, mu balanced circuit, the reduction voltage circuit that connect successively, described transformer is connected with two rectification circuits respectively with the saturated mutual inductor of three phase velocities.
7. electronic type molded case circuit breaker controller according to claim 1, it is characterized in that: described signal acquisition circuit (2) comprises voltage signal acquisition circuit, described voltage signal acquisition circuit comprise suppress undesired signal voltage signal buffer circuit, to the voltage signal filtering circuit of voltage signal high-pass filtering and the voltage signal amplifying circuit that amplifies voltage signal; Voltage signal buffer circuit output terminal is connected with voltage signal filtering circuit input end, and described voltage signal filtering circuit output terminal is connected with voltage signal input amplifier.
8. electronic type molded case circuit breaker controller according to claim 7, it is characterized in that: described voltage signal buffer circuit comprises voltage dependent resistor (VDR) RV1, the 8th resistance R8, the 9th resistance R9, the 11 transformer T1, one end of voltage dependent resistor (VDR) RV1 is connected with one end of the 8th resistance R8, the other end of voltage dependent resistor (VDR) RV1 is connected with one end of transformer T1 input end, the other end of the 8th resistance R8 is connected with the transformer T1 input end other end, and the output terminal of transformer T1 is connected with the two ends of the 9th resistance R9.
9. electronic type molded case circuit breaker controller according to claim 7, it is characterized in that: described voltage signal filtering circuit comprises the tenth resistance R10, 11 resistance R11, 12 resistance R12, 13 resistance R13, 4th electric capacity C4, 5th electric capacity C5, 3rd amplifier U 3, one end of tenth resistance R10 is connected with one end of the 5th electric capacity C5, the other end of the 5th electric capacity C5 is connected with one end of the 11 resistance R11, the other end of the 11 resistance R11 is connected with the positive pole of the 3rd amplifier U3, one end of 4th electric capacity C4 connects with the line between the tenth resistance R10 and the 5th electric capacity C5, the other end of the 4th electric capacity C4 is connected with one end of the 12 resistance R12, the other end of the 12 resistance R12 is connected with the negative pole of the 3rd amplifier U3, 13 resistance R13 one end connects with the line between the 12 resistance R12 and the negative pole of the 3rd amplifier U3, the other end of the 13 resistance R13 is connected with the output terminal of the 3rd amplifier U 3.
10. electronic type molded case circuit breaker controller according to claim 7, it is characterized in that: described voltage signal amplifying circuit comprises the 14 resistance R14, 15 resistance R15, 16 resistance R16, 17 resistance R17, 18 resistance R18, 4th amplifier U4, 5th amplifier U5, 6th amplifier U6, first diode D1, one end of 14 resistance R14 is connected with one end of the 15 resistance R15, the other end of the 14 resistance R14 is connected with the positive pole of the 4th amplifier U4, the other end of the 15 resistance R15 is connected with the positive pole of the 5th amplifier U5, 16 resistance R16 one end ground connection, the other end is connected with the negative pole of the 5th amplifier U5, the positive pole of the first diode D1 is connected with the output terminal of the 5th amplifier U5, the negative pole of the first diode D1 is connected with the positive pole of the 5th amplifier U5, the negative pole of the 4th amplifier U4 is connected with the negative pole of the first diode D1, one end of 17 resistance R17 is connected with the positive pole of the 4th amplifier U4, the other end of the 17 resistance R17 is connected with the output terminal of the 4th amplifier U4, the output terminal of the 4th amplifier U4 is connected with the positive pole of the 6th amplifier U6, 18 resistance R18 one end is connected with the negative pole of the 6th amplifier U6, the other end is connected with the output terminal of the 6th amplifier U6.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420476152.4U CN204116863U (en) | 2014-08-22 | 2014-08-22 | Electronic type molded case circuit breaker controller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420476152.4U CN204116863U (en) | 2014-08-22 | 2014-08-22 | Electronic type molded case circuit breaker controller |
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| CN204116863U true CN204116863U (en) | 2015-01-21 |
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| CN201420476152.4U Active CN204116863U (en) | 2014-08-22 | 2014-08-22 | Electronic type molded case circuit breaker controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600847A (en) * | 2015-02-12 | 2015-05-06 | 金思思 | Intelligent switch |
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2014
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600847A (en) * | 2015-02-12 | 2015-05-06 | 金思思 | Intelligent switch |
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Assignee: Wenzhou Zhengtai Electrical Technology Co., Ltd Assignor: Zhejiang Chint Electrics Co.,Ltd. Contract record no.: X2020330000078 Denomination of utility model: Electronic molded case circuit breaker controller Granted publication date: 20150121 License type: Common License Record date: 20201021 |