CN103681094B - A kind of vacuum circuit breaker control circuit and system - Google Patents

A kind of vacuum circuit breaker control circuit and system Download PDF

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CN103681094B
CN103681094B CN201310746961.2A CN201310746961A CN103681094B CN 103681094 B CN103681094 B CN 103681094B CN 201310746961 A CN201310746961 A CN 201310746961A CN 103681094 B CN103681094 B CN 103681094B
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circuit
triode
breaker
vacuum circuit
vacuum
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CN103681094A (en
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欧阳彤
刘前术
曾庆才
张华钢
赵明
何康
叶冬
曾宇
万鹏
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Chengdu Kexing Electric Power & Electrical Appliance Co ltd
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Chengdu Kexing Electric Power & Electrical Appliance Co ltd
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Abstract

The invention provides a kind of vacuum circuit breaker control circuit and system, by the power input of the first normally opened contact switch-linear hybrid at vacuum circuit-breaker closing circuit, second normally opened contact switch-linear hybrid is at the power input of vacuum circuit-breaker sub-gate circuit, when the first switching circuit receives switching signal, the first normally opened contact switch will be controlled by connected first relay coil to close, thus vacuum circuit-breaker closing circuit is energized; And when second switch circuit receives sub-gate signal, the second normally opened contact switch will be controlled by connected second relay coil to close, thus vacuum circuit-breaker sub-gate circuit is energized, thus the inspection achieved each device in vacuum circuit-breaker on/off switch loop, solve in prior art because controllable silicon output is always with low-voltage, and make to be short-circuited fault at vacuum circuit-breaker, damage each device in this vacuum circuit breaker control circuit, affect the problem of vacuum circuit-breaker break-in conventional efficient.

Description

A kind of vacuum circuit breaker control circuit and system
Technical field
The present invention relates to break-in experimental technique field, relate to a kind of vacuum circuit breaker control circuit and system in particular.
Background technology
Vacuum circuit-breaker is the switch main product of distribution system power equipment, is widely used in protection and the control unit of the controller switching equipment of the industries such as electric power, industrial and mineral, building.And in actual applications, because vacuum circuit-breaker will bear the combined floodgate separating brake of thousands of times, thus, in order to ensure the performance of vacuum circuit-breaker, usually before this vacuum circuit-breaker of use, all to carry out the break-in experiment of vacuum circuit-breaker, namely under specified operating voltage, combined floodgate sub-switching operation is for several times carried out to vacuum circuit-breaker, thus realize the break-in of each part, and check the assembling of this vacuum circuit-breaker and distribution system and the quality of part according to this, thus ensure the safe and reliable operation of the distribution system of this vacuum circuit-breaker of application.
In prior art, usually be all the break-in experiment adopting SCR control to complete vacuum circuit-breaker, but due under controllable silicon operating state, controllable silicon output is always with a low-voltage, thus, when making a mistake to the wiring of vacuum circuit-breaker, often cause the short circuit of silicon controlled control circuit, thus damage the device in this silicon controlled control circuit, greatly have impact on the efficiency of vacuum circuit-breaker break-in experiment, and increase break-in experimental cost.
Summary of the invention
In view of this, the invention provides a kind of vacuum circuit breaker control circuit and system, solve existing silicon controlled control circuit because controllable silicon output is always with low-voltage, and make when vacuum circuit-breaker wiring error, this silicon controlled control circuit is short-circuited fault, thus cause the device failure in this silicon controlled control circuit, and affect the efficiency of vacuum circuit-breaker break-in experiment, and increase the technical problem of break-in experimental cost.
For achieving the above object, the invention provides following technical scheme:
A kind of vacuum circuit breaker control circuit, comprise: power circuit, the first switching circuit be connected with described power circuit respectively, second switch circuit, the first relay coil and the second relay coil, be positioned at the first normally opened contact switch of the power input of vacuum circuit-breaker closing circuit, and be positioned at the second normally opened contact switch of power input of vacuum circuit-breaker sub-gate circuit, wherein
Described first switching circuit is connected with described first relay coil, responds the switching signal received, and controls described first normally opened contact switch close by described first relay coil;
Described second switch circuit is connected with described second relay coil, responds the sub-gate signal received, and controls described second normally opened contact switch close by described second relay coil.
Preferably, described first switching circuit comprises: the first triode, the second triode, the 3rd triode and the first resistance, wherein,
The base stage of described first triode is connected with described power circuit, and the collector electrode of described first triode is connected with the collector electrode of described second triode, and for receiving switching signal, the emitter of described first triode is connected with the base stage of described second triode;
The emitter of described second triode is connected with the base stage of described 3rd triode and the first end of described first resistance;
The collector electrode of described 3rd triode is connected with described power circuit by described first relay coil, the grounded emitter of described 3rd triode, and is connected with the second end of described first resistance.
Preferably, described second switch circuit comprises: the 4th triode, the 5th triode, the 6th triode and the second resistance, wherein,
The base stage of described 4th triode is connected with described power circuit, and the collector electrode of described 4th triode is connected with the collector electrode of described 5th triode, and for receiving sub-gate signal, the emitter of described 4th triode is connected with the base stage of described 5th triode;
The emitter of described 5th triode is connected with the base stage of the 6th triode and the first end of the second resistance respectively;
Described 6th transistor collector is connected with described power circuit by the second relay coil, the grounded emitter of described 6th triode, and is connected with the second end of described second resistance.
Preferably, described power circuit comprises: current rectifying and wave filtering circuit and voltage stabilizing circuit, wherein,
The input of described current rectifying and wave filtering circuit is connected with 12V AC power, and the output of described current rectifying and wave filtering circuit is connected with the input of described voltage stabilizing circuit;
The output of described voltage stabilizing circuit is connected with the base stage of described 4th triode with the base stage of described first triode respectively, and be connected with the collector electrode of described 3rd triode by described first relay coil, be connected by the collector electrode of described second relay coil with described 6th triode, the earth terminal ground connection of described voltage stabilizing circuit.
Preferably, described current rectifying and wave filtering circuit comprises: rectifier circuit and the first electric capacity, wherein,
The input of described rectifier circuit is connected with 12V AC power, the cathode output end of described rectifier circuit is connected with the positive pole of described first electric capacity, described voltage stabilizing circuit input respectively, the cathode output end of described rectifier circuit is connected with the negative pole of described first electric capacity, and ground connection.
Preferably, also comprise: the second electric capacity, wherein, the positive pole of described second electric capacity is connected with the output of described voltage stabilizing circuit, the minus earth of described second electric capacity.
Preferably, also comprise: the first diode and the second diode, wherein,
The anode of described first diode is connected with the collector electrode of described 3rd triode, and the negative electrode of described first diode is connected with the output of described voltage stabilizing circuit;
The anode of described second diode is connected with the collector electrode of described 6th triode, and the negative electrode of described second diode is connected with the output of described voltage stabilizing circuit.
Preferably, described voltage stabilizing circuit specifically model be the three-terminal voltage-stabilizing integrated chip of 7812.
Preferably, described vacuum circuit-breaker closing circuit is all connected with 220V AC power with described vacuum circuit-breaker sub-gate circuit.
A kind of vacuum circuit-breaker control system, comprising:
For exporting the signal feeding device of sub-gate signal or switching signal;
The vacuum circuit breaker control circuit as claimed in claim 8 be connected with described signal feeding device;
And be connected with described vacuum circuit breaker control circuit vacuum circuit-breaker closing circuit and vacuum circuit-breaker sub-gate circuit.
Known via above-mentioned technical scheme, compared with prior art, the invention discloses a kind of vacuum circuit breaker control circuit and system, by by the power input of the first normally opened contact switch-linear hybrid at vacuum circuit-breaker closing circuit, second normally opened contact switch-linear hybrid is at the power input of vacuum circuit-breaker sub-gate circuit, then when the first switching circuit receives switching signal, the first normally opened contact switch will be controlled by connected first relay coil to close, thus vacuum circuit-breaker closing circuit is energized, achieve the inspection to device each in vacuum circuit-breaker closing circuit, and when second switch circuit receives sub-gate signal, the second normally opened contact switch will be controlled by connected second relay coil to close, thus vacuum circuit-breaker sub-gate circuit is energized, achieve the inspection to device each in vacuum circuit-breaker sub-gate circuit.As can be seen here, the present invention is by this vacuum circuit breaker control circuit, not only complete the break-in experiment of this vacuum circuit-breaker safely and reliably, and be the conducting being realized vacuum circuit-breaker on/off switch loop by Control due to it, there is not controllable silicon output always with the problem of low-voltage, thus avoid when vacuum circuit-breaker generation wiring error, this vacuum circuit breaker control circuit is caused to be short-circuited fault, thus each device damaged in this control circuit, increase break-in experimental cost and reduce the generation of the situation of vacuum circuit-breaker break-in conventional efficient.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is the structural representation of the embodiment 1 of a kind of vacuum circuit breaker control circuit of the present invention;
Fig. 2 is the circuit connection diagram of the embodiment 2 of a kind of vacuum circuit breaker control circuit of the present invention;
Fig. 3 is the structural representation of a kind of vacuum circuit-breaker control system of the present invention embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the invention discloses a kind of vacuum circuit breaker control circuit and system, by by the power input of the first normally opened contact switch-linear hybrid at vacuum circuit-breaker closing circuit, second normally opened contact switch-linear hybrid is at the power input of vacuum circuit-breaker sub-gate circuit, then when the first switching circuit receives switching signal, the first normally opened contact switch will be controlled by connected first relay coil to close, thus vacuum circuit-breaker closing circuit is energized, achieve the inspection to device each in vacuum circuit-breaker closing circuit; And when second switch circuit receives sub-gate signal, the second normally opened contact switch will be controlled by connected second relay coil to close, thus vacuum circuit-breaker sub-gate circuit is energized, achieve the inspection to device each in vacuum circuit-breaker sub-gate circuit.
As can be seen here, the present invention is by this vacuum circuit breaker control circuit, not only complete the break-in experiment of this vacuum circuit-breaker safely and reliably, and be the conducting being realized vacuum circuit-breaker on/off switch loop by Control due to it, there is not controllable silicon output always with the problem of low-voltage, thus avoid when vacuum circuit-breaker generation wiring error, this vacuum circuit breaker control circuit is caused to be short-circuited fault, thus each device damaged in this control circuit, increase break-in experimental cost and reduce the generation of the situation of vacuum circuit-breaker break-in conventional efficient.
As shown in Figure 1, for the structural representation of the embodiment 1 of a kind of vacuum circuit breaker control circuit of the present invention, in actual applications, this vacuum circuit breaker control circuit may be used for the break-in experiment of vacuum circuit-breaker, then this vacuum circuit breaker control circuit specifically can comprise: power circuit 110, the first switching circuit 120 be connected with this power circuit 110 respectively, second switch circuit 130, first relay coil K1 and the second relay coil K2, be positioned at the first normally opened contact K switch 1-1 of the power input of vacuum circuit-breaker closing circuit, and be positioned at the second normally opened contact K switch 2-1 of power input of vacuum circuit-breaker sub-gate circuit, wherein,
First switching circuit 120 is connected with the first relay coil K1, responds the switching signal received, and controls the first normally opened contact K switch 1-1 close by the first relay coil K1.
In actual applications, by the button be connected with this first switching circuit 120, switching signal is sent to this first switching circuit, make this first switching circuit 120 conducting, thus the first relay coil K1 be connected with this first switching circuit 120 is energized, then the first normally opened contact K switch 1-1 closes automatically, and vacuum circuit-breaker closing circuit is energized, thus whether each device examined in this vacuum circuit-breaker closing circuit is intact.
Preferably, this first switching circuit 120 specifically can comprise: the first triode, the second triode, the 3rd triode and the first resistance, wherein,
The base stage of the first triode is connected with power circuit, the collector electrode of this first triode is connected with the collector electrode of the second triode, for receiving switching signal, the emitter of the first triode is connected with the base stage of the second triode, then this first transistor circuit is in response to this switching signal, makes himself and the second triode ON.
The emitter of the second triode is connected with the base stage of the 3rd triode and the first end of the first resistance; The collector electrode of the 3rd triode is connected with power circuit by the first relay coil, the grounded emitter of the 3rd triode, and be connected with the second end of the first resistance, then when the second triode ON, by triggering the 3rd triode ON, thus make the first relay coil energising.
Wherein, the first triode, the second triode and the 3rd triode can be all NPN type triode.
In addition, second switch circuit 130 is connected with the second relay coil K2, responds the sub-gate signal received, and controls the second normally opened contact K switch 2-1 close by the second relay coil K2.
In like manner, the embodiment of the present invention can by another button be connected with this second switch circuit 130, sub-gate signal is sent to this second switch circuit 130, make this second switch circuit 130 conducting, thus the second relay coil K2 be connected with this second switch circuit 130 is energized, then the second normally opened contact K switch 2-1 closes automatically, and vacuum circuit-breaker sub-gate circuit is energized, thus whether each device examined in this vacuum circuit-breaker sub-gate circuit is intact.
Preferably, this second switch circuit 130 specifically can comprise: the 4th triode, the 5th triode, the 6th triode and the second resistance, wherein,
The base stage of the 4th triode is connected with power circuit, the collector electrode of the 4th triode is connected with the collector electrode of the 5th triode, for receiving sub-gate signal, the emitter of the 4th triode is connected with the base stage of the 5th triode, then the 4th triode will in response to this sub-gate signal, makes himself and the 5th triode ON.
The emitter of the 5th triode is connected with the base stage of the 6th triode and the first end of the second resistance respectively; And the 6th transistor collector is connected with described power circuit by the second relay coil, the grounded emitter of the 6th triode, and be connected with the second end of the second resistance, then when after the 5th triode ON, by triggering the 6th triode ON, thus make the second relay coil energising.
Wherein, the 4th triode, the 5th triode and the 6th triode can be all NPN type triode.
As the above analysis, in the embodiment of the present invention, no matter be control the energising of vacuum circuit-breaker closing circuit, or control the energising of vacuum circuit-breaker sub-gate circuit, all realized by Control, thus, avoid SCR control realize vacuum circuit-breaker on/off switch loop energising time, because controllable silicon output is always with low-voltage, make when vacuum circuit-breaker wiring makes a mistake, this vacuum circuit breaker control circuit is caused to be short-circuited fault, and then make the damage of each device in this vacuum circuit breaker control circuit, thus affect the generation of the situation of vacuum circuit-breaker break-in conventional efficient.
Wherein, vacuum circuit-breaker closing circuit is all connected with 220V AC power with vacuum circuit-breaker sub-gate circuit.
In the practical application of the embodiment of the present invention, the input of this power circuit 110 is connected with 12V AC power, and this power circuit 110 specifically can comprise current rectifying and wave filtering circuit and voltage stabilizing circuit, on the basis of above preferred embodiment, the input of this current rectifying and wave filtering circuit is connected with 12V AC power, and the output of current rectifying and wave filtering circuit is connected with the input of voltage stabilizing circuit; The output of voltage stabilizing circuit is connected with the base stage of the 4th triode with the base stage of the first triode respectively, and be connected with the collector electrode of the 3rd triode by the first relay coil, be connected by the collector electrode of the second relay coil with the 6th triode, and the earth terminal ground connection of this voltage stabilizing circuit.
It should be noted that, the said structure of this power circuit 120 is not only applicable to above preferred embodiment, it also can realize on the basis of the embodiment of the present invention, and physical circuit syndeton those skilled in the art can determine according to foregoing description, will repeat no more herein.
In actual applications, above-mentioned current rectifying and wave filtering circuit specifically can comprise rectifier circuit and the first electric capacity, wherein, the input of rectifier circuit is connected with 12V AC power, the cathode output end of rectifier circuit is connected with the positive pole of the first electric capacity, voltage stabilizing circuit input respectively, the cathode output end of rectifier circuit is connected with the negative pole of the first electric capacity, and ground connection.
Preferably, in the embodiment of the present invention, this vacuum circuit breaker control circuit can also comprise: the second electric capacity, then the positive pole of this second electric capacity is connected with the output of voltage stabilizing circuit, minus earth.
In addition, the first diode and the second diode can also be comprised, wherein,
The anode of this first diode is connected with the collector electrode of the 3rd triode, and negative electrode is connected with the output of voltage stabilizing circuit; The anode of this second diode is connected with the collector electrode of the 6th triode, and negative electrode is connected with the output of voltage stabilizing circuit.
Wherein, state in each embodiment on the invention, voltage stabilizing circuit can be specifically model be 7812 three-terminal voltage-stabilizing integrated chip.
The embodiment of the present invention is passed through the power input of the first normally opened contact switch-linear hybrid at vacuum circuit-breaker closing circuit, second normally opened contact switch-linear hybrid is at the power input of vacuum circuit-breaker sub-gate circuit, then when the first switching circuit receives switching signal, the first normally opened contact switch will be controlled by connected first relay coil to close, thus vacuum circuit-breaker closing circuit is energized, achieve the inspection to device each in vacuum circuit-breaker closing circuit, and when second switch circuit receives sub-gate signal, the second normally opened contact switch will be controlled by connected second relay coil to close, thus vacuum circuit-breaker sub-gate circuit is energized, achieve the inspection to device each in vacuum circuit-breaker sub-gate circuit, to solve in prior art in SCR control vacuum circuit-breaker break-in experiment, because controllable silicon output is always with low-voltage, and make when vacuum circuit-breaker generation wiring error, this vacuum circuit breaker control circuit is caused to be short-circuited fault, thus make each device failure in this vacuum circuit breaker control circuit, affect the problem of vacuum circuit-breaker break-in conventional efficient.
As shown in Figure 2, for the circuit connection diagram of the embodiment 2 of a kind of vacuum circuit breaker control circuit of the present invention, in actual applications, this control circuit can be used for the break-in experiment of vacuum circuit-breaker, then this control circuit specifically can comprise: rectifier circuit 210, first electric capacity C1, three-terminal voltage-stabilizing integrated chip 7812(7812 is the model of this three-terminal voltage-stabilizing integrated chip), second electric capacity C2, first triode N1, second triode N2, 3rd triode N3, first resistance R1, 4th triode N4, 5th triode N5, 6th triode N6, second resistance R2, first relay coil K1, first diode D1, second relay coil K2, second diode D2, first normally opened contact K switch 1-1 and the second normally opened contact K switch 2-1, wherein,
The input of rectifier circuit 210 is connected with 12V AC power, the cathode output end of rectifier circuit is connected with the positive pole of the first electric capacity C1, three-terminal voltage-stabilizing integrated chip 7812 input respectively, the cathode output end of this rectifier circuit 210 is connected with the negative pole of the first electric capacity C, and ground connection.
In embodiments of the present invention, this rectifier circuit 210 is specifically as follows full bridge rectifier, connected by 4 rectifier diodes by the form of full-wave bridge rectifier circuit and be packaged as a whole and form, the particular circuit configurations of this rectifier circuit 210 is identical with existing rectifier circuit, herein will not at detailed description.
Wherein, rectifier circuit 210 will press-fit the 12V alternating current of input to change 12V direct voltage output into, and carries out filtering process by the first electric capacity C1 to this direct voltage and export.
The output of three-terminal voltage-stabilizing integrated chip 7812 is connected with the positive pole of the base stage of the first triode N1, the base stage of the 4th triode N4 and the second electric capacity C2 respectively, and be connected with the collector electrode of the 3rd triode N3 by the first relay coil K1, be connected with the collector electrode of the 6th triode N6 by the second relay coil K2, the direct ground connection of earth terminal of this three-terminal voltage-stabilizing integrated chip 7812, and the minus earth of this second electric capacity C2.
Wherein, this three-terminal voltage-stabilizing integrated chip 7812 is the components and parts with three pins outputs, and its profile is similar to common triode, can adopt the standard packaging form of TO-220.In actual applications, this three-terminal voltage-stabilizing integrated chip 7812 and the second electric capacity C2 can provide the direct voltage of stable 12V jointly, for each devices function be connected with the output of this three-terminal voltage-stabilizing integrated chip 7812.
In addition, the collector electrode of this first triode N1 is connected with the collector electrode of the second triode N2, for receiving switching signal (it is positive voltage signal), make this first triode N1 conducting, and be connected with the base stage of the second triode N2, now by this second triode of control N2 saturation conduction due to the emitter of the first triode N1, and because the emitter of this second triode N2 is connected with the first end of the base stage of the 3rd triode N3 and the first resistance R1, then the second triode N2 of conducting will control the 3rd triode N3 saturation conduction further, because the collector electrode of the 3rd triode N3 is connected with the output of this three ends power supply integrated chip 7812 by the first relay coil K1, emitter is connected and ground connection with second end of the first resistance R1, so, now this first relay coil K1 will be energized, the the first normally opened contact K switch 1-1 being then positioned at the power input of vacuum circuit-breaker closing circuit will close, thus make this vacuum circuit-breaker closing circuit conducting.
And, the collector electrode of the 4th triode N4 is connected with the collector electrode of the 5th triode N5, for receiving sub-gate signal (it is positive voltage signal), then the 4th triode N4 is by conducting under the triggering of this sub-gate signal, because the emitter of the 4th triode N4 is connected with the base stage of the 5th triode N5, then the 4th triode N4 of conducting will trigger the 5th triode N5 conducting further, in addition, because the emitter of the 5th triode N5 is connected with the base stage of the 6th triode N6 and the first end of the second resistance R2 respectively, 6th triode N5 collector electrode is connected with the output of three end power supply integrated chips 7812 by the second relay coil K2, emitter is connected and ground connection with second end of the second resistance R2, then the 5th triode N5 of conducting further will trigger the 6th triode N6 conducting, thus the second relay coil K2 is energized, the the second normally opened contact K switch 2-1 being then positioned at the power input of vacuum circuit-breaker sub-gate circuit will close, this vacuum circuit-breaker sub-gate circuit is energized.
Wherein, this vacuum circuit-breaker is also provided with, the first diode D1 in parallel with the first relay coil K1, and the second diode D2 in parallel with the second relay coil K2.
In actual applications, because relay coil (comprising the first relay coil K1 and the second relay coil K2) can produce a very strong inverse electromotive force (voltage that provides than power supply of this electromotive force is taller usually) in the moment of power-off, be easy to relay coil is damaged, thus, the present invention is by consuming this inverse electromotive force at relay coil two ends anti-parallel diodes (the first corresponding diode D1 or the second diode D2), concrete, when power is off, relay coil is by generation induced electromotive force, will under the effect of this induced electromotive force with its parallel diode, continue as this relay coil along the loop that relay coil and this diode are formed to power, thus prolongation power-on time, until this induced electromotive force disappears, thus avoid the damage of this induced electromotive force to this relay coil.
Wherein, the power input in vacuum circuit-breaker on/off switch loop is connected in 220V alternating voltage.
The embodiment of the present invention is passed through the power input of the first normally opened contact switch-linear hybrid at vacuum circuit-breaker closing circuit, second normally opened contact switch-linear hybrid is at the power input of vacuum circuit-breaker sub-gate circuit, then when the first transistor collector receives switching signal, this switching signal is by trigger conducting, and then trigger the conducting of the second triode and the 3rd triode successively, thus the first relay coil be connected with the 3rd triode is energized, then the first normally opened contact switch closes, make the conducting of vacuum circuit-breaker closing circuit, achieve the inspection to device each in vacuum circuit-breaker closing circuit, and when the collector electrode of the 4th triode receives sub-gate signal, this sub-gate signal triggers himself conducting, and trigger the 5th triode and the 6th triode ON further, thus the second relay coil be connected with the 6th triode is energized, then the second normally opened contact switch closes, make the conducting of vacuum circuit-breaker sub-gate circuit, achieve the inspection to device each in vacuum circuit-breaker sub-gate circuit, based on this, to the invention solves in prior art in SCR control vacuum circuit-breaker break-in experiment, because controllable silicon output is always with low-voltage, and make when vacuum circuit-breaker generation wiring error, this vacuum circuit breaker control circuit is caused to be short-circuited fault, thus each device damaged in this vacuum circuit breaker control circuit, affect the technical problem of vacuum circuit-breaker break-in conventional efficient.
As shown in Figure 3, for the structural representation of a kind of vacuum circuit-breaker control system of the present invention embodiment, this system can comprise: for exporting the signal feeding device 310 of sub-gate signal or switching signal, the vacuum circuit breaker control circuit 320 be connected with signal feeding device 310, the vacuum circuit-breaker closing circuit 330 be connected with vacuum circuit breaker control circuit 320 and vacuum circuit-breaker sub-gate circuit 340.
In actual applications, this signal feeding device 310 can according to user need determine, as exported switching signal by a button, another button exports sub-gate signal, certainly can also by other equipment as switching signal and the sub-gate signal of the output of this signal feeding device for triggering vacuum circuit breaker control circuit action, the present invention does not do any restriction to this.
Wherein, it should be noted that, the vacuum circuit breaker control circuit 320 in the embodiment of the present invention is identical with the structure of the vacuum circuit breaker control circuit described in embodiment 2 with above-mentioned a kind of vacuum circuit breaker control circuit embodiment 1, will repeat no more at this.
In addition, vacuum circuit-breaker closing circuit in the embodiment of the present invention and the power input of vacuum circuit-breaker sub-gate circuit are provided with normally opened contact switch, the action of this normally opened contact switch is controlled by relay coil corresponding in vacuum circuit breaker control circuit, detailed process asks corresponding part in the above-mentioned a kind of vacuum circuit breaker control circuit embodiment 1 of parameter and embodiment 2, will no longer repeat herein.
Wherein, this vacuum circuit-breaker closing circuit is identical with the structure of sub-gate circuit with existing vacuum circuit-breaker closing circuit with the concrete structure of vacuum circuit-breaker sub-gate circuit, and the application will no longer describe in detail.
Known based on above-mentioned analysis, in the embodiment of the present invention, vacuum circuit breaker control circuit exports switching signal according to signal feeding device, controls the first relay coil energising in this vacuum circuit breaker control circuit, then makes the conducting of vacuum circuit-breaker closing circuit; According to the sub-gate signal that signal feeding device exports, control the second relay coil energising in this vacuum circuit breaker control circuit, thus make the conducting of vacuum circuit-breaker sub-gate circuit.As can be seen here, the present invention controls vacuum circuit-breaker by relay coil to close a floodgate and separating brake, thus complete the running-in test of vacuum circuit-breaker, be not realize running-in test by SCR control, then solve in prior art because controllable silicon output is always with low-voltage, make when vacuum circuit-breaker generation wiring error, this vacuum circuit breaker control circuit is caused to be short-circuited fault, and each device damaged in this vacuum circuit breaker control circuit, affect vacuum circuit-breaker break-in conventional efficient, and increase the technical problem of experimental cost.
In addition; also it should be noted that; state in each embodiment on the invention; except above-mentioned described device; can also comprise: the display showing the current control state of this vacuum circuit breaker control circuit, connect the circuit or connection device etc. of each device, will will not enumerate at this; pay so long as not those skilled in the art that creative work determines, all belong to scope.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For system disclosed in embodiment, because it comprises control circuit disclosed in embodiment, so description is fairly simple, relevant part illustrates see control circuit part.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (7)

1. a vacuum circuit breaker control circuit, it is characterized in that, comprise: power circuit, the first switching circuit be connected with described power circuit respectively, second switch circuit, the first relay coil and the second relay coil, be positioned at the first normally opened contact switch of the power input of vacuum circuit-breaker closing circuit, and be positioned at the second normally opened contact switch of power input of vacuum circuit-breaker sub-gate circuit, wherein
Described first switching circuit is connected with described first relay coil, responds the switching signal received, and controls described first normally opened contact switch close by described first relay coil;
Described second switch circuit is connected with described second relay coil, responds the sub-gate signal received, and controls described second normally opened contact switch close by described second relay coil;
Described first switching circuit comprises: the first triode, the second triode, the 3rd triode and the first resistance, wherein,
The base stage of described first triode is connected with described power circuit, and the collector electrode of described first triode is connected with the collector electrode of described second triode, and for receiving switching signal, the emitter of described first triode is connected with the base stage of described second triode;
The emitter of described second triode is connected with the base stage of described 3rd triode and the first end of described first resistance;
The collector electrode of described 3rd triode is connected with described power circuit by described first relay coil, the grounded emitter of described 3rd triode, and is connected with the second end of described first resistance;
Described second switch circuit comprises: the 4th triode, the 5th triode, the 6th triode and the second resistance, wherein,
The base stage of described 4th triode is connected with described power circuit, and the collector electrode of described 4th triode is connected with the collector electrode of described 5th triode, and for receiving sub-gate signal, the emitter of described 4th triode is connected with the base stage of described 5th triode;
The emitter of described 5th triode is connected with the base stage of the 6th triode and the first end of the second resistance respectively;
Described 6th transistor collector is connected with described power circuit by the second relay coil, the grounded emitter of described 6th triode, and is connected with the second end of described second resistance;
Described power circuit comprises: current rectifying and wave filtering circuit and voltage stabilizing circuit, wherein,
The input of described current rectifying and wave filtering circuit is connected with 12V AC power, and the output of described current rectifying and wave filtering circuit is connected with the input of described voltage stabilizing circuit;
The output of described voltage stabilizing circuit is connected with the base stage of described 4th triode with the base stage of described first triode respectively, and be connected with the collector electrode of described 3rd triode by described first relay coil, be connected by the collector electrode of described second relay coil with described 6th triode, the earth terminal ground connection of described voltage stabilizing circuit.
2. control circuit according to claim 1, is characterized in that, described current rectifying and wave filtering circuit comprises: rectifier circuit and the first electric capacity, wherein,
The input of described rectifier circuit is connected with 12V AC power, the cathode output end of described rectifier circuit is connected with the positive pole of described first electric capacity, described voltage stabilizing circuit input respectively, the cathode output end of described rectifier circuit is connected with the negative pole of described first electric capacity, and ground connection.
3. control circuit according to claim 1, is characterized in that, also comprises: the second electric capacity, and wherein, the positive pole of described second electric capacity is connected with the output of described voltage stabilizing circuit, the minus earth of described second electric capacity.
4. control circuit according to claim 1, is characterized in that, also comprises: the first diode and the second diode, wherein,
The anode of described first diode is connected with the collector electrode of described 3rd triode, and the negative electrode of described first diode is connected with the output of described voltage stabilizing circuit;
The anode of described second diode is connected with the collector electrode of described 6th triode, and the negative electrode of described second diode is connected with the output of described voltage stabilizing circuit.
5. the control circuit according to any one of claim 1-4, is characterized in that, described voltage stabilizing circuit specifically model is the three-terminal voltage-stabilizing integrated chip of 7812.
6. the control circuit according to any one of claim 1-4, is characterized in that, described vacuum circuit-breaker closing circuit is all connected with 220V AC power with described vacuum circuit-breaker sub-gate circuit.
7. a vacuum circuit-breaker control system, is characterized in that, comprising:
For exporting the signal feeding device of sub-gate signal or switching signal;
The vacuum circuit breaker control circuit as claimed in claim 5 be connected with described signal feeding device;
And be connected with described vacuum circuit breaker control circuit vacuum circuit-breaker closing circuit and vacuum circuit-breaker sub-gate circuit.
CN201310746961.2A 2013-12-30 2013-12-30 A kind of vacuum circuit breaker control circuit and system Active CN103681094B (en)

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CN109659897A (en) * 2018-12-12 2019-04-19 珠海格力电器股份有限公司 A kind of protection circuit and servo-driver
CN110931311A (en) * 2019-11-29 2020-03-27 广西电网有限责任公司电力科学研究院 VSP5 switch electric control circuit

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CN2144862Y (en) * 1993-02-05 1993-10-27 邮电部北京通信设备厂 Energy-saving electromagnetic relay
CN101634078A (en) * 2008-07-21 2010-01-27 牟春晓 Touch power-saving switch for loom
CN202305602U (en) * 2011-09-28 2012-07-04 西安供电局 Mimic-disconnecting switch
CN202362426U (en) * 2011-10-31 2012-08-01 安徽鑫龙电器股份有限公司 Test device of vacuum circuit breaker
CN203631410U (en) * 2013-12-30 2014-06-04 成都科星电力电器有限公司 Vacuum circuit breaker controlling circuit and vacuum circuit breaker controlling system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2144862Y (en) * 1993-02-05 1993-10-27 邮电部北京通信设备厂 Energy-saving electromagnetic relay
CN101634078A (en) * 2008-07-21 2010-01-27 牟春晓 Touch power-saving switch for loom
CN202305602U (en) * 2011-09-28 2012-07-04 西安供电局 Mimic-disconnecting switch
CN202362426U (en) * 2011-10-31 2012-08-01 安徽鑫龙电器股份有限公司 Test device of vacuum circuit breaker
CN203631410U (en) * 2013-12-30 2014-06-04 成都科星电力电器有限公司 Vacuum circuit breaker controlling circuit and vacuum circuit breaker controlling system

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