CN103681094A - Vacuum circuit breaker control circuit and system - Google Patents
Vacuum circuit breaker control circuit and system Download PDFInfo
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- CN103681094A CN103681094A CN201310746961.2A CN201310746961A CN103681094A CN 103681094 A CN103681094 A CN 103681094A CN 201310746961 A CN201310746961 A CN 201310746961A CN 103681094 A CN103681094 A CN 103681094A
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Abstract
The invention provides a vacuum circuit breaker control circuit and system. A first normally-opened contact switch is arranged at the power supply input end of a vacuum circuit breaker closing circuit, a second normally-opened contact switch is arranged at the power supply input end of a vacuum circuit breaker opening circuit, and when a first switching circuit receives a closing signal, the first switching circuit controls closing of the first normally-opened contact switch through a first relay coil connected with the first switching circuit and accordingly enable s the vacuum circuit breaker closing circuit to be powered on. When a second switching circuit receives an opening signal, the second switching circuit controls closing of the second normally-opened contact switch through a second relay coil connected with the second switching circuit and accordingly enables the vacuum circuit breaker opening circuit to be powered on. Therefore, checkout of devices in the vacuum circuit breaker opening circuit is achieved, and the problem that the silicon controlled rectifier output end in the prior art always carries with low voltage, accordingly a short-circuit fault of a vacuum circuit breaker occurs, devices in the vacuum circuit breaker control circuit are damaged, and the efficiency of a running-in experiment of the vacuum circuit breaker is influenced.
Description
Technical field
The present invention relates to break-in experimental technique field, relate in particular a kind of vacuum circuit-breaker control circuit and system.
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, thereby, in order to guarantee the performance of vacuum circuit-breaker, conventionally before using this vacuum circuit-breaker, all to carry out the break-in experiment of vacuum circuit-breaker, under specified operating voltage, vacuum circuit-breaker is carried out to combined floodgate sub-switching operation for several times, thereby realize the break-in of each part, and check according to this assembling of this vacuum circuit-breaker and distribution system and the quality of part, thereby guarantee the safe and reliable operation of the distribution system of this vacuum circuit-breaker of application.
In prior art, conventionally be all to adopt SCR control to complete the break-in experiment of vacuum circuit-breaker, but due under controllable silicon operating state, controllable silicon output is always with a low-voltage, thereby, when the wiring of vacuum circuit-breaker is made a mistake, tend to cause the short circuit of silicon controlled control circuit, thereby damage the device in this silicon controlled control circuit, greatly affect the efficiency of vacuum circuit-breaker break-in experiment, and increased 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, solved 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 fault that is short-circuited, thereby 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 being 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 the second normally opened contact switch that is positioned at the power input of vacuum circuit-breaker sub-gate circuit, wherein
Described the first switching circuit is connected with described the first relay coil, and the switching signal that response receives is controlled described the first normally opened contact switch by described the first relay coil closed;
Described second switch circuit is connected with described the second relay coil, and the sub-gate signal that response receives is controlled described the second normally opened contact switch by described the second relay coil closed.
Preferably, described the first switching circuit comprises: the first triode, the second triode, the 3rd triode and the first resistance, wherein,
The base stage of described the first triode is connected with described power circuit, and the collector electrode of described the first triode is connected with the collector electrode of described the second triode, and for receiving switching signal, the emitter of described the first triode is connected with the base stage of described the second triode;
The emitter of described the second triode is connected with the base stage of described the 3rd triode and the first end of described the first resistance;
The collector electrode of described the 3rd triode is connected with described power circuit by described the first relay coil, the grounded emitter of described the 3rd triode, and be connected with the second end of described the 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 the 4th triode is connected with described power circuit, and the collector electrode of described the 4th triode is connected with the collector electrode of described the 5th triode, and for receiving sub-gate signal, the emitter of described the 4th triode is connected with the base stage of described the 5th triode;
The emitter of described the 5th triode is connected with the base stage of the 6th triode and the first end of the second resistance respectively;
Described the 6th transistor collector is connected with described power circuit by the second relay coil, the grounded emitter of described the 6th triode, and be connected with the second end of described the 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 the 4th triode with the base stage of described the first triode respectively, and be connected with the collector electrode of described the 3rd triode by described the first relay coil, by described the second relay coil, be connected with the collector electrode of described the 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 the 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 the first electric capacity, and ground connection.
Preferably, also comprise: the second electric capacity, wherein, the positive pole of described the second electric capacity is connected with the output of described voltage stabilizing circuit, the minus earth of described the second electric capacity.
Preferably, also comprise: the first diode and the second diode, wherein,
The anode of described the first diode is connected with the collector electrode of described the 3rd triode, and the negative electrode of described the first diode is connected with the output of described voltage stabilizing circuit;
The anode of described the second diode is connected with the collector electrode of described the 6th triode, and the negative electrode of described the second diode is connected with the output of described voltage stabilizing circuit.
Preferably, the described voltage stabilizing circuit three-terminal voltage-stabilizing integrated chip that specifically model is 7812.
Preferably, described vacuum circuit-breaker closing circuit is all connected with 220V AC power with described vacuum circuit-breaker sub-gate circuit.
A 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 being connected with described signal feeding device;
And vacuum circuit-breaker closing circuit and vacuum circuit-breaker sub-gate circuit are connected with described vacuum circuit-breaker control 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 the first normally opened contact switch being arranged on to the power input of vacuum circuit-breaker closing circuit, the second normally opened contact switch is arranged on the power input of vacuum circuit-breaker sub-gate circuit, when the first switching circuit receives switching signal, to control the first normally opened contact switch by connected the first relay coil closed, thereby make the energising of vacuum circuit-breaker closing circuit, realized the check to each device in vacuum circuit-breaker closing circuit, and when second switch circuit receives sub-gate signal, to control the second normally opened contact switch by connected the second relay coil closed, thereby make the energising of vacuum circuit-breaker sub-gate circuit, realized the check to each device 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 completed safely and reliably the break-in experiment of this vacuum circuit-breaker, and because it is to realize the conducting in vacuum circuit-breaker on/off switch loop by Control, do not exist controllable silicon output always with the problem of low-voltage, thereby avoided when vacuum circuit-breaker generation wiring error, cause this vacuum circuit-breaker control circuit fault that is short-circuited, thereby damage each device in this control circuit, increase break-in experimental cost and reduced 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, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skills, do not paying under the prerequisite of creative work, other accompanying drawing can also be provided according to the accompanying drawing providing.
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, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining 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 the first normally opened contact switch being arranged on to the power input of vacuum circuit-breaker closing circuit, the second normally opened contact switch is arranged on the power input of vacuum circuit-breaker sub-gate circuit, when the first switching circuit receives switching signal, to control the first normally opened contact switch by connected the first relay coil closed, thereby make the energising of vacuum circuit-breaker closing circuit, realized the check to each device in vacuum circuit-breaker closing circuit; And when second switch circuit receives sub-gate signal, to control the second normally opened contact switch by connected the second relay coil closed, thereby make the energising of vacuum circuit-breaker sub-gate circuit, realized the check to each device 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 completed safely and reliably the break-in experiment of this vacuum circuit-breaker, and because it is to realize the conducting in vacuum circuit-breaker on/off switch loop by Control, do not exist controllable silicon output always with the problem of low-voltage, thereby avoided when vacuum circuit-breaker generation wiring error, cause this vacuum circuit-breaker control circuit fault that is short-circuited, thereby damage each device in this control circuit, increase break-in experimental cost and reduced the generation of the situation of vacuum circuit-breaker break-in conventional efficient.
As shown in Figure 1, structural representation for 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 can be for the break-in experiment of vacuum circuit-breaker, this vacuum circuit-breaker control circuit specifically can comprise: power circuit 110, the first switching circuit 120 being connected with this power circuit 110 respectively, second switch circuit 130, the 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 the second normally opened contact K switch 2-1 that is positioned at the power input of vacuum circuit-breaker sub-gate circuit, wherein,
The first switching circuit 120 is connected with the first relay coil K1, and the switching signal that response receives is controlled the first normally opened contact K switch 1-1 by the first relay coil K1 closed.
In actual applications, can be by the button being connected with this first switching circuit 120, to this first switching circuit, send switching signal, make this first switching circuit 120 conductings, thereby make the first relay coil K1 energising being connected with this first switching circuit 120, whether the first normally opened contact K switch 1-1 is automatically closed, make the energising of vacuum circuit-breaker closing circuit, thereby checked each device in this vacuum circuit-breaker closing circuit 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, be used for receiving switching signal, the emitter of the first triode is connected with the base stage of the second triode, this first transistor circuit is in response to this switching signal, makes himself and the second triode conducting.
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, when the second triode conducting, to trigger the 3rd triode conducting, thereby make the first relay coil energising.
Wherein, the first triode, the second triode and the 3rd triode can be all NPN type triodes.
In addition, second switch circuit 130 is connected with the second relay coil K2, and the sub-gate signal that response receives is controlled the second normally opened contact K switch 2-1 by the second relay coil K2 closed.
In like manner, the embodiment of the present invention can be by another button being connected with this second switch circuit 130, to this second switch circuit 130, send sub-gate signal, make this second switch circuit 130 conductings, thereby make the second relay coil K2 energising being connected with this second switch circuit 130, whether the second normally opened contact K switch 2-1 is automatically closed, make the energising of vacuum circuit-breaker sub-gate circuit, thereby checked each device in this vacuum circuit-breaker sub-gate circuit 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, be used for receiving sub-gate signal, the emitter of the 4th triode is connected with the base stage of the 5th triode, the 4th triode will be in response to this sub-gate signal, makes himself and the 5th triode conducting.
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, after the 5th triode conducting, to trigger the 6th triode conducting, thereby make the second relay coil energising.
Wherein, the 4th triode, the 5th triode and the 6th triode can be all NPN type triodes.
As the above analysis, in the embodiment of the present invention, no matter be to control the energising of vacuum circuit-breaker closing circuit, still control the energising of vacuum circuit-breaker sub-gate circuit, all to realize by Control, thereby, while having avoided SCR control to realize the energising of vacuum circuit-breaker on/off switch loop, because controllable silicon output is always with low-voltage, make when vacuum circuit-breaker wiring makes a mistake, cause this vacuum circuit-breaker control circuit fault that is short-circuited, and then make the damage of each device in this vacuum circuit-breaker control circuit, thereby 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, by the second relay coil, be connected with the collector electrode of 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 positive pole, the voltage stabilizing circuit input of the first electric capacity 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, the positive pole of this second electric capacity and the output of voltage stabilizing circuit are connected, minus earth.
In addition, can also comprise the first diode and the second diode, 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, in the various embodiments described above of the present invention, voltage stabilizing circuit can be specifically that model is 7812 three-terminal voltage-stabilizing integrated chip.
The embodiment of the present invention is by being arranged on the first normally opened contact switch the power input of vacuum circuit-breaker closing circuit, the second normally opened contact switch is arranged on the power input of vacuum circuit-breaker sub-gate circuit, when the first switching circuit receives switching signal, to control the first normally opened contact switch by connected the first relay coil closed, thereby make the energising of vacuum circuit-breaker closing circuit, realized the check to each device in vacuum circuit-breaker closing circuit, and when second switch circuit receives sub-gate signal, to control the second normally opened contact switch by connected the second relay coil closed, thereby make the energising of vacuum circuit-breaker sub-gate circuit, realized the check to each device in vacuum circuit-breaker sub-gate circuit, solved 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, cause this vacuum circuit-breaker control circuit fault that is short-circuited, thereby 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, circuit connection diagram for 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, this control circuit specifically can comprise: rectifier circuit 210, the first capacitor C 1, three-terminal voltage-stabilizing integrated chip 7812(7812 is the model of this three-terminal voltage-stabilizing integrated chip), the second capacitor C 2, the first triode N1, the second triode N2, the 3rd triode N3, the first resistance R 1, the 4th triode N4, the 5th triode N5, the 6th triode N6, the second resistance R 2, the first relay coil K1, the first diode D1, the second relay coil K2, the second diode D2, the 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 positive pole, three-terminal voltage-stabilizing integrated chip 7812 inputs of the first capacitor C 1 respectively, the cathode output end of this rectifier circuit 210 is connected with the negative pole of the first capacitor C, and ground connection.
In embodiments of the present invention, this rectifier circuit 210 is specifically as follows full bridge rectifier, by 4 rectifier diodes, by the form of full-wave bridge rectifier circuit, connect and be packaged as a whole and form, the particular circuit configurations of this rectifier circuit 210 is identical with existing rectifier circuit, will not describe in detail herein.
Wherein, rectifier circuit 210 will press-fit the 12V alternating current of input to change 12V direct voltage output into, and carries out filtering processing output by 1 pair of this direct voltage of the first capacitor C.
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 capacitor C 2 respectively, and be connected with the collector electrode of the 3rd triode N3 by the first relay coil K1, by the second relay coil K2, be connected with the collector electrode of the 6th triode N6, the direct ground connection of earth terminal of this three-terminal voltage-stabilizing integrated chip 7812, and the minus earth of this second capacitor C 2.
Wherein, this three-terminal voltage-stabilizing integrated chip 7812 is the components and parts with three pin 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 capacitor C 2 can provide the direct voltage of stable 12V, each device work being connected for the output with this three-terminal voltage-stabilizing integrated chip 7812 jointly.
In addition, the collector electrode of this first triode N1 is connected with the collector electrode of the second triode N2, be used for receiving switching signal (it is positive voltage signal), make this first triode N1 conducting, and because the emitter of the first triode N1 is connected with the base stage of the second triode N2, now will control this second triode N2 saturation conduction, and because the emitter of this second triode N2 is connected with the base stage of the 3rd triode N3 and the first end of the first resistance R 1, the second triode N2 of conducting will further control the 3rd triode N3 saturation conduction, 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 the second end of the first resistance R 1, so, now this first relay coil K1 will switch on, be positioned at the first normally opened contact K switch 1-1 of power input of vacuum circuit-breaker closing circuit by closure, thereby 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, be used for receiving sub-gate signal (it is positive voltage signal), 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, the 4th triode N4 of conducting will further trigger the 5th triode N5 conducting, 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 R 2 respectively, the 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 the second end of the second resistance R 2, the 5th triode N5 of conducting will further trigger the 6th triode N6 conducting, thereby make the second relay coil K2 energising, be positioned at the second normally opened contact K switch 2-1 of power input of vacuum circuit-breaker sub-gate circuit by closure, make this vacuum circuit-breaker sub-gate circuit energising.
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 this electromotive force provides than power supply is conventionally taller) in the moment of power-off, be easy to make relay coil to damage, thereby, the present invention is by consuming this inverse electromotive force at relay coil two ends reverse parallel connection diode (corresponding the first diode D1 or the second diode D2), concrete, when power-off, relay coil will produce an induced electromotive force, with its parallel diode will be under the effect of this induced electromotive force, loop along relay coil and the formation of this diode continues as this relay coil power supply, thereby prolongation power-on time, until this induced electromotive force disappears, thereby avoided 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 by being arranged on the first normally opened contact switch the power input of vacuum circuit-breaker closing circuit, the second normally opened contact switch is arranged on the power input of vacuum circuit-breaker sub-gate circuit, when the first transistor collector receives switching signal, this switching signal is by trigger conducting, and then trigger successively the conducting of the second triode and the 3rd triode, thereby make the first relay coil energising being connected with the 3rd triode, the first normally opened contact switch is closed, make the conducting of vacuum circuit-breaker closing circuit, realized the check to each device 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 further trigger the 5th triode and the 6th triode conducting, thereby make the second relay coil energising being connected with the 6th triode, the second normally opened contact switch is closed, make the conducting of vacuum circuit-breaker sub-gate circuit, realized the check to each device in vacuum circuit-breaker sub-gate circuit, based on this, 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, cause this vacuum circuit-breaker control circuit fault that is short-circuited, thereby damage each device in this vacuum circuit-breaker control circuit, affect the technical problem of vacuum circuit-breaker break-in conventional efficient.
As shown in Figure 3, structural representation for 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 being connected with signal feeding device 310, the vacuum circuit-breaker closing circuit 330 being 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 be determined according to user's needs, as exported switching signal by a button, another button output sub-gate signal, switching signal and the sub-gate signal that certainly can also as this signal feeding device output, for triggering vacuum circuit-breaker control circuit, move by other equipment, 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 vacuum circuit-breaker control circuit described in above-mentioned a kind of vacuum circuit-breaker control circuit embodiment 1 and embodiment 2, at this, will repeat no more.
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 that relay coil corresponding in vacuum circuit-breaker control circuit is controlled, detailed process is asked 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, the concrete structure of this vacuum circuit-breaker closing circuit and vacuum circuit-breaker sub-gate circuit is identical with the structure of existing vacuum circuit-breaker closing circuit and 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, according to signal feeding device output switching signal, is controlled the first relay coil energising in this vacuum circuit-breaker control circuit, makes the conducting of vacuum circuit-breaker closing circuit; According to the sub-gate signal of signal feeding device output, control the second relay coil energising in this vacuum circuit-breaker control circuit, thereby 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, thereby complete the running-in test of vacuum circuit-breaker, be not to realize running-in test by SCR control, solved in prior art because controllable silicon output is always with low-voltage, make when vacuum circuit-breaker generation wiring error, cause this vacuum circuit-breaker control circuit fault that is short-circuited, and damage each device 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; in the various embodiments described above of the present invention; except above-mentioned described device; can also comprise: show the display of the current state of a control of this vacuum circuit-breaker control circuit, connect the circuit of each device or connection device etc., at this, will will not enumerate; so long as not those skilled in the art, pay that creative work determines, all belong to protection range of the present invention.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.For the disclosed system of embodiment, because it comprises the disclosed control circuit of embodiment, so description is fairly simple, relevant part partly illustrates referring to control circuit.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a vacuum circuit-breaker control circuit, it is characterized in that, comprise: power circuit, the first switching circuit being 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 the second normally opened contact switch that is positioned at the power input of vacuum circuit-breaker sub-gate circuit, wherein
Described the first switching circuit is connected with described the first relay coil, and the switching signal that response receives is controlled described the first normally opened contact switch by described the first relay coil closed;
Described second switch circuit is connected with described the second relay coil, and the sub-gate signal that response receives is controlled described the second normally opened contact switch by described the second relay coil closed.
2. control circuit according to claim 1, is characterized in that, described the first switching circuit comprises: the first triode, the second triode, the 3rd triode and the first resistance, wherein,
The base stage of described the first triode is connected with described power circuit, and the collector electrode of described the first triode is connected with the collector electrode of described the second triode, and for receiving switching signal, the emitter of described the first triode is connected with the base stage of described the second triode;
The emitter of described the second triode is connected with the base stage of described the 3rd triode and the first end of described the first resistance;
The collector electrode of described the 3rd triode is connected with described power circuit by described the first relay coil, the grounded emitter of described the 3rd triode, and be connected with the second end of described the first resistance.
3. control circuit according to claim 2, is characterized in that, described second switch circuit comprises: the 4th triode, the 5th triode, the 6th triode and the second resistance, wherein,
The base stage of described the 4th triode is connected with described power circuit, and the collector electrode of described the 4th triode is connected with the collector electrode of described the 5th triode, and for receiving sub-gate signal, the emitter of described the 4th triode is connected with the base stage of described the 5th triode;
The emitter of described the 5th triode is connected with the base stage of the 6th triode and the first end of the second resistance respectively;
Described the 6th transistor collector is connected with described power circuit by the second relay coil, the grounded emitter of described the 6th triode, and be connected with the second end of described the second resistance.
4. control circuit according to claim 3, is characterized in that, 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 the 4th triode with the base stage of described the first triode respectively, and be connected with the collector electrode of described the 3rd triode by described the first relay coil, by described the second relay coil, be connected with the collector electrode of described the 6th triode, the earth terminal ground connection of described voltage stabilizing circuit.
5. control circuit according to claim 4, 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 the 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 the first electric capacity, and ground connection.
6. control circuit according to claim 4, is characterized in that, also comprises: the second electric capacity, wherein, the positive pole of described the second electric capacity is connected with the output of described voltage stabilizing circuit, the minus earth of described the second electric capacity.
7. control circuit according to claim 4, is characterized in that, also comprises: the first diode and the second diode, wherein,
The anode of described the first diode is connected with the collector electrode of described the 3rd triode, and the negative electrode of described the first diode is connected with the output of described voltage stabilizing circuit;
The anode of described the second diode is connected with the collector electrode of described the 6th triode, and the negative electrode of described the second diode is connected with the output of described voltage stabilizing circuit.
8. according to the control circuit described in claim 4-7 any one, it is characterized in that the described voltage stabilizing circuit three-terminal voltage-stabilizing integrated chip that specifically model is 7812.
9. according to the control circuit described in claim 1-7 any one, it 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.
10. 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 8 being connected with described signal feeding device;
And vacuum circuit-breaker closing circuit and vacuum circuit-breaker sub-gate circuit are connected with described vacuum circuit-breaker control circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310746961.2A CN103681094B (en) | 2013-12-30 | 2013-12-30 | A kind of vacuum circuit breaker control circuit and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310746961.2A CN103681094B (en) | 2013-12-30 | 2013-12-30 | A kind of vacuum circuit breaker control circuit and system |
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| Publication Number | Publication Date |
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| CN103681094A true CN103681094A (en) | 2014-03-26 |
| CN103681094B CN103681094B (en) | 2016-02-10 |
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| CN201310746961.2A Active CN103681094B (en) | 2013-12-30 | 2013-12-30 | A kind of vacuum circuit breaker control circuit and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109659897A (en) * | 2018-12-12 | 2019-04-19 | 珠海格力电器股份有限公司 | 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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| 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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| CN2144862Y (en) * | 1993-02-05 | 1993-10-27 | 邮电部北京通信设备厂 | Energy-saving electromagnetic relay |
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| CN202305602U (en) * | 2011-09-28 | 2012-07-04 | 西安供电局 | Mimic-disconnecting switch |
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| 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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| Publication number | Publication date |
|---|---|
| CN103681094B (en) | 2016-02-10 |
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