CN103441508A - Multipurpose low-voltage intelligent capacitor - Google Patents
Multipurpose low-voltage intelligent capacitor Download PDFInfo
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- CN103441508A CN103441508A CN2013103243532A CN201310324353A CN103441508A CN 103441508 A CN103441508 A CN 103441508A CN 2013103243532 A CN2013103243532 A CN 2013103243532A CN 201310324353 A CN201310324353 A CN 201310324353A CN 103441508 A CN103441508 A CN 103441508A
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Abstract
The invention discloses a multipurpose low-voltage intelligent capacitor. The multipurpose low-voltage intelligent capacitor comprises a first power capacitor, a second power capacitor and a temperature sensor between the first power capacitor and the second power capacitor, so that reactive power compensation is achieved. For achieving the multipurpose and intelligent effect, the multipurpose low-voltage intelligent capacitor further comprises a small breaker connected with a three-phase power grid, a hurl-slices switch, a microprocessor system, a liquid crystal displayer, signal indicator lights, an RS485 interface communication module, a key configuration module and the like, and the low-voltage intelligent capacitor can be obtained by connecting the modules correspondingly. The multipurpose low-voltage intelligent capacitor can monitor relevant parameters of the power grid in real time, and the relevant parameters can be displayed by the liquid crystal displayer and the signal indicator lights. The multipurpose low-voltage intelligent capacitor is powerful in function, wide in application, suitable for reactive in-place dispersion compensation, reactive centralized compensation and low-voltage reactive in-place grouping compensation, and wide in application prospect.
Description
Technical field
The invention relates to the supply network control field, be specifically related to a kind of multipurpose low-voltage intelligent capacitor.
Background technology
Under normal circumstances, power consumption equipment not only will be obtained active power from power supply, also need to obtain reactive power from power supply simultaneously.If supply falls short of demand for the reactive power in electrical network, power consumption equipment does not just have enough reactive powers to set up normal electromagnetic field, these power consumption equipments just can not maintain in specified situation and work so, the terminal voltage of power consumption equipment will descend, thereby affect the normal operation of power consumption equipment, so in electrical network to the reactive power intellectuality, integrated and safely and reliably the compensation particularly important, and traditional reactive power compensator is by the low-voltage intelligent idle compensating control, fuse, combination switch or contactor, thermal relay, indicator light, the multiple dispersion device such as capacitor forms, fling-cut switch for reactive power compensation has contactor, the employing contactor drops into, easily producing high power during the excision capacitor shoves, overvoltage, cause the components and parts damage, and compensation speed is slow, can not frequent switching, power consumption is large, noise is large, and by contactor, the complete compensator volume of the discrete element assembling such as air switch is large, wiring is many, time-consuming is installed not only but also is consumed manpower, safeguard extremely inconvenient, single cabinet compensation capacity is little, cost is high, be unfavorable for that compensation capacity increases.Simultaneously, not to the safeguard measure of electric capacity, do not obtain the real time temperature of capacitor operation yet, in certain areas, because excess Temperature causes capacitor faults, bucking-out system can not normally be moved, life and production have been brought to very big danger.
Summary of the invention
The technical problem that the present invention solves is that frequent movement moment of the operating excess Temperature of capacitance reactive compensation and fling-cut switch is shoved and superpotential protection, makes reactive-load compensation capacitor monitor more humanely and compensate.
In order to solve the problems of the technologies described above, the invention provides a kind of multipurpose low-voltage intelligent capacitor, this multipurpose low-voltage intelligent capacitor includes not only can be separately or alternation but also the first electric capacitor and second electric capacitor that can simultaneously carry out work, the structure of these two electric capacitors is identical with connection, all by three electric capacity AB phase of the parallel ABC of the being connected on three phase network of wire respectively, the BC phase, between the AC phase, to realize reactive power compensation, cause that for fear of heat production in the power capacitor running excess Temperature causes capacitor faults and damage, the present invention is provided with temperature sensor in the middle of the first electric capacitor and the second electric capacitor, the real-time monitoring be used for to the electric capacitor actuator temperature.Preferably integrated the temperature sensor sealing of the first electric capacitor and the second electric capacitor and centre thereof, make temperature sensor can more accurately monitor the temperature of the first electric capacitor and the second electric capacitor.
The present invention avoids the external environment impact and is convenient to safe handling for the temperature sensor of described the first electric capacitor and the second electric capacitor and centre thereof, and the temperature sensor of the first electric capacitor and the second electric capacitor and centre thereof is fixed in small-sized casing.For the intelligent reactive power compensation that realizes electrical network with to the protection of electric capacitor, the present invention also includes 2 fling-cut switches and microprocessor system in casing, 1 fling-cut switch comprises 2 magnetic latching relays and 2 thyristors, 1 magnetic latching relay and 1 thyristor in parallel 1 group of switch, 2 groups of switches are 1 fling-cut switches, wherein 2 of fling-cut switch groups of switches are connected on respectively on any two-phase of three phase network, fling-cut switch also is connected with the switching signaling module data communication of microprocessor system and is connected with magnetic latching relay driver module wire with thyristor driver circuits for triggering module, with the intelligent drives fling-cut switch, move, the operating state that switches on and off to realize power capacitor by fling-cut switch.The magnetic latching relay KRA of control connection electrical network A phase and thyristor VSA in parallel 1 group of switch, the magnetic latching relay KRB of control connection electrical network B phase and the thyristor VSB separately 1 group of switch that obtains in parallel, these 2 groups of fling-cut switches that switch is exactly the first electric capacitor, the break-make of these 2 groups of switches can realize that three electric capacity of the first electric capacitor are parallel to respectively the AB phase of three phase network, the BC phase, AC goes up mutually, the first electric capacitor wire connects an end of this fling-cut switch, the other end wire of fling-cut switch is connected on three phase network, while selecting the first electric capacitor to carry out reactive power compensation, must make the fling-cut switch of the first electric capacitor connect, be 2 groups of switches of this fling-cut switch connect simultaneously make the first electric capacitor three electric capacity respectively parallel wire be connected to the AB phase of three phase network, the BC phase, AC goes up mutually.The beneficial features of fling-cut switch of the present invention is that magnetic latching relay and thyristor are connected in parallel, and to eliminate moment that three phase network and electric capacitor connect, by the high pressure that shoves and offset the moment magnetic latching relay two ends of three phase network and electric capacitor disconnection of magnetic latching relay, protects magnetic latching relay.This course of action is when microprocessor system detects the first electric capacitor and need to carry out reactive power compensation to electrical network, under the relay driving effect of the thyristor driver circuits for triggering module of microprocessor system and magnetic latching relay driver module, make fling-cut switch produce closed action, fling-cut switch closed moment is due to just thyristor fast conducting of the characteristic of thyristor, magnetic maintenance effect due to magnetic latching relay, after several milliseconds of pulses, the closed thyristor of magnetic latching relay disconnects, and realizes eliminating moment to shove to the infringement of magnetic latching relay.When detecting the first electric capacitor, microprocessor system do not need electrical network is carried out to reactive power compensation or when because of temperature sensor, the electric capacitor actuator temperature being detected and surpass set point, under the relay driving effect of the thyristor driver circuits for triggering module of microprocessor system and magnetic latching relay driver module, make fling-cut switch produce and disconnect action, disconnecting moment magnetic latching relay disconnection thyristor connects, after several milliseconds of pulses, thyristor disconnects, and realizes that bucking circuit disconnects the infringement of moment overvoltage to magnetic latching relay.The connected mode of the fling-cut switch of the second electric capacitor and the fling-cut switch of the first electric capacitor is identical with structure function.
Microprocessor system comprises master cpu, the voltage signal sampling module, the overvoltage detection module, the current signal sampling module, the switching signaling module, state shows LED, thyristor driver circuits for triggering module and magnetic latching relay driver module, can carry out data exchange processing between each module, the voltage signal sampling module with the overvoltage detection module by with the three phase network wire, being connected and obtaining voltage value signal, the current signal sampling module obtains the current value signal by peripheral total cabinet treatment circuit mutual inductance through data line, the magnitude of voltage collected and current value signal carry out the data processing through master cpu, can be transferred to result display device and can drive thyristor driver circuits for triggering module to be connected to trigger the fling-cut switch action with the magnetic latching relay driver module by the corresponding wire of the thyristor with fling-cut switch and relay, the switching signaling module of microprocessor system is by being connected and giving the microprocessor system feedback signal with the fling-cut switch data communication, so just can realize the intellectuality of reactive power compensation.Master cpu dsp chip preferably wherein.
The present invention is in order to use more safely and reliably this multipurpose low-voltage intelligent capacitor, be provided with miniature circuit breaker in described casing, its top connection is connected with the three phase network wire, lower contact is all carried out wire with microprocessor system and fling-cut switch and is connected, by miniature circuit breaker, microprocessor system and fling-cut switch are realized to energising is connected with outage with three phase network, can be by miniature circuit breaker outage is processed when this multipurpose low-voltage intelligent capacitor breaks down, safe and reliable.Preferably casing is outside equipped with liquid crystal display, it is connected by data communication and carries out the data processing with the microprocessor system in casing, can be observed power factor, current value, magnitude of voltage, reactive power, whether excess temperature, whether overvoltage, overcurrent whether on LCD Panel.Preferably described casing is outside equipped with 2 signal lamps, one end of described signal lamp is connected with the microprocessor system wire in casing, the other end is connected with a wherein phase conductor of electrical network, wherein 1 signal lamp gathers the feedback signal of the first electric capacitor by microprocessor system, another 1 signal lamp gathers the feedback signal of the second electric capacitor by microprocessor system, judge the operating state of the first electric capacitor and the second electric capacitor by the bright dark situation of described signal lamp.Allow so better the staff understand the operating state of this multipurpose low-voltage intelligent capacitor, not only facilitate but also use.
The present invention is in order to be applied even more extensively on the reactive power compensation field of electrical network, be provided with the RS485 interface communication on described casing, described RS485 interface communication is connected with the microprocessor system data communication in casing, this RS485 interface can be realized between two or many these low-voltage intelligent capacitors exchanges data and control and realize reactive power compensation by data line, and can be switched another multipurpose low-voltage intelligent capacitor by microprocessor system during because of the excess Temperature break-off at this multipurpose low-voltage intelligent capacitor and carried out the reactive power compensation to electrical network.For more intelligent embodiment man-machine communication; be outside equipped with the button setting at described casing; described button setting is connected with the microprocessor system data communication, can be to the input of the relevant parameters such as temperature protection value, sampled signal electric current no-load voltage ratio, reactive power compensation, switching time delay by described button setting.
The invention has the beneficial effects as follows energy Real-Time Monitoring line voltage value, current value, power factor, reactive power, excess temperature whether, whether overvoltage, the relevant parameter such as overcurrent whether, and show by liquid crystal display and signal lamp, be placed in addition the middle temperature sensor of the first electric capacitor and the second electric capacitor, can measure in real time the temperature of the first electric capacitor and the second electric capacitor, and a temperature feedback of measuring in real time is to microprocessor system, when the temperature fed back during higher than design temperature microprocessor system give the fling-cut switch shutdown signal and make this multipurpose low-voltage intelligent capacitor break-off or switch another multipurpose secondary capacitor to carry out work, to realize the protection of multipurpose low-voltage intelligent capacitor and to postpone its useful life, embody it powerful, application scenario is extensive, both be applicable to idle distributed compensation on the spot, be applicable to again idle work centralized compensation, also be applicable to low-voltage reactive power grouping compensation, application prospect is extensive, and application element thereof is integrated, concentrate in small box body, easy to carry and use.
The accompanying drawing explanation
Fig. 1 is that the first electric capacitor of the present invention is connected in parallel on the circuit diagram of three phase network by the fling-cut switch wire;
Fig. 2 is microprocessor system module connection layout of the present invention;
Fig. 3 is low-voltage intelligent capacitor module relation diagram of the present invention;
Fig. 4 is many low-voltage intelligent capacitor one compensation winding diagrams of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail, to make those skilled in the art, with reference to the specification word, can implement according to this.
The invention provides a kind of multipurpose low-voltage intelligent capacitor, this multipurpose low-voltage intelligent capacitor includes not only can be separately or alternation but also the first electric capacitor and second electric capacitor that can simultaneously carry out work, the structure of these two electric capacitors is identical with connection, all by three electric capacity AB phase of the parallel ABC of the being connected on three phase network of wire respectively, the BC phase, between the AC phase, to realize reactive power compensation, cause that for fear of heat production in the power capacitor running excess Temperature causes capacitor faults and damage, the present invention is provided with temperature sensor in the middle of the first electric capacitor and the second electric capacitor, the real-time monitoring be used for to the electric capacitor actuator temperature.Preferably integrated the temperature sensor sealing of the first electric capacitor and the second electric capacitor and centre thereof, make temperature sensor can more accurately monitor the temperature of the first electric capacitor and the second electric capacitor.
The present invention avoids the external environment impact and is convenient to safe handling for the temperature sensor of described the first electric capacitor and the second electric capacitor and centre thereof, and the temperature sensor of the first electric capacitor and the second electric capacitor and centre thereof is fixed in small-sized casing.For the intelligent reactive power compensation that realizes electrical network with to the protection of electric capacitor, the present invention also includes 2 fling-cut switches and microprocessor system in casing, Fig. 1 is that the first electric capacitor is connected in parallel on the circuit diagram on three phase network by the fling-cut switch wire, scheme upperly to see, 1 fling-cut switch comprises 2 magnetic latching relays and 2 thyristors, 1 magnetic latching relay and 1 thyristor in parallel 1 group of switch, 2 groups of switches are 1 fling-cut switches, wherein 2 of fling-cut switch groups of switches are connected on respectively on any two-phase of three phase network, fling-cut switch also is connected with the switching signaling module data communication of microprocessor system and is connected with magnetic latching relay driver module wire with thyristor driver circuits for triggering module, with the intelligent drives fling-cut switch, move, the operating state that switches on and off to realize power capacitor by fling-cut switch.In Fig. 1, the magnetic latching relay KRA of control connection electrical network A phase and thyristor VSA are in parallel that I organizes switch, the magnetic latching relay KRB of control connection electrical network B phase and thyristor VSB are in parallel that another I organizes switch, these 2 groups of fling-cut switches that switch is exactly the first electric capacitor, the break-make of these 2 groups of switches can realize that three electric capacity of the first electric capacitor are parallel to respectively the AB phase of three phase network, the BC phase, AC goes up mutually, the first electric capacitor wire connects an end of this fling-cut switch, the other end wire of fling-cut switch is connected on three phase network, while selecting the first electric capacitor to carry out reactive power compensation, must make the fling-cut switch of the first electric capacitor connect, be 2 groups of switches of this fling-cut switch connect simultaneously make the first electric capacitor three electric capacity respectively parallel wire be connected to the AB phase of three phase network, the BC phase, AC goes up mutually.The beneficial features of fling-cut switch of the present invention is that magnetic latching relay and thyristor are connected in parallel, and to eliminate moment that three phase network and electric capacitor connect, by the high pressure that shoves and offset the moment magnetic latching relay two ends of three phase network and electric capacitor disconnection of magnetic latching relay, protects magnetic latching relay.This course of action is when microprocessor system detects the first electric capacitor and need to carry out reactive power compensation to electrical network, under the relay driving effect of the thyristor driver circuits for triggering module of microprocessor system and magnetic latching relay driver module, make fling-cut switch produce closed action, fling-cut switch closed moment, the characteristic due to thyristor made the thyristor fast conducting, magnetic maintenance effect due to magnetic latching relay, after several milliseconds of pulses, the closed thyristor of magnetic latching relay disconnects, can realize eliminating moment the blink that thyristor is connected shoves to the infringement of magnetic latching relay.When detecting the first electric capacitor, microprocessor system do not need electrical network is carried out to reactive power compensation or when because of temperature sensor, the electric capacitor actuator temperature being detected and surpass set point, under the relay driving effect of the thyristor driver circuits for triggering module of microprocessor system and magnetic latching relay driver module, make fling-cut switch produce and disconnect action, disconnecting moment magnetic latching relay disconnection thyristor connects, after several milliseconds of pulses, thyristor disconnects, and can realize that bucking circuit disconnects the infringement of moment overvoltage to magnetic latching relay the blink that thyristor is connected.The connected mode of the fling-cut switch of the second electric capacitor and the fling-cut switch of the first electric capacitor is identical with structure function, and these 2 electric capacitors can detect the actual conditions of electrical network and the operation conditions of electric capacitor can be carried out selectivity work according to microprocessor system.
Known in Fig. 2, microprocessor system comprises master cpu, voltage signal sampling module, overvoltage detection module, current signal sampling module, switching signaling module, state demonstration LED, thyristor driver circuits for triggering module and magnetic latching relay driver module, between each module, can carry out data exchange processing.It is exactly thyristor driver circuits for triggering module and magnetic latching relay driver module that 2 relays in Fig. 2 drive, Zong wherein an electric current that passes through mutually the mutual inductance of peripheral cabinet treatment circuit is through data line acquisition current value signal be exactly the B phase current current signal sampling module in Fig. 2 is selected three phase network, the present embodiment has been selected the mutual inducing current of B.A phase in Fig. 2, B phase and C phase voltage are exactly that the voltage signal sampling module is by being connected the detection entrance that obtains voltage value signal with the three phase network wire; the same detection entrance of overvoltage detection in Fig. 2 and voltage signal sampling module, just to detect be that whether overvoltage is in order to carry out corresponding safeguard measure for the three-phase voltage of comparison electrical network in overvoltage.Carry out the data processing by magnitude of voltage and the current value signal that electrical network is collected through master cpu, can be transferred to result display device and can drive thyristor driver circuits for triggering module to be connected to trigger the fling-cut switch action with the magnetic latching relay driver module by the corresponding wire of the thyristor with fling-cut switch and relay, the switching signaling module of microprocessor system is by being connected and giving the microprocessor system feedback signal with the fling-cut switch data communication, also can show show state on LED but not detailed, can separately increase display device, so just can realize better the intellectuality of reactive power compensation.Master cpu dsp chip preferably wherein.
Can see the composition module of this multipurpose low-voltage intelligent capacitor in Fig. 3, it comprises miniature circuit breaker, fling-cut switch, microprocessor system, the first electric capacitor, the second electric capacitor, temperature sensor, liquid crystal display, signal lamp, RS485 interface communication and button setting.Wherein liquid crystal display, signal lamp, RS485 interface communication and button setting can be arranged on the outer or casing of described casing, miniature circuit breaker is arranged in described casing, its top connection is connected with the three phase network wire, lower contact is all carried out wire with microprocessor system and fling-cut switch and is connected, by miniature circuit breaker, microprocessor system and fling-cut switch are realized to energising is connected with outage with three phase network, can be by miniature circuit breaker outage is processed when this multipurpose low-voltage intelligent capacitor breaks down, safe and reliable.Preferably casing is outside equipped with liquid crystal display, it is connected by data communication and carries out the data processing with the microprocessor system in casing, can be observed power factor, current value, magnitude of voltage, reactive power, whether excess temperature, whether overvoltage, overcurrent whether on LCD Panel.Preferably described casing is outside equipped with 2 signal lamps, one end of described signal lamp is connected with the microprocessor system wire in casing, the other end is connected with a wherein phase conductor of electrical network, wherein 1 signal lamp gathers the feedback signal of the first electric capacitor by microprocessor system, another 1 signal lamp gathers the feedback signal of the second electric capacitor by microprocessor system, judge the operating state of the first electric capacitor and the second electric capacitor by the bright dark situation of described signal lamp.Allow so better the staff understand the operating state of this multipurpose low-voltage intelligent capacitor, not only facilitate but also use.Preferably on described casing, be provided with the RS485 interface communication, described RS485 interface communication is connected with the microprocessor system data communication in casing, this RS485 interface can realize between two or many these low-voltage intelligent capacitors exchanges data and control and realize reactive power compensation by data line, and can be switched another multipurpose low-voltage intelligent capacitor by microprocessor system during because of the excess Temperature break-off at this multipurpose low-voltage intelligent capacitor and carry out the reactive power compensation to electrical network.For more intelligent embodiment man-machine communication; be outside equipped with the button setting at described casing; described button setting is connected with the microprocessor system data communication, can be to the input of the relevant parameters such as temperature protection value, sampled signal electric current no-load voltage ratio, reactive power compensation, switching time delay by described button setting.
Can see that in Fig. 4 this multipurpose low-voltage intelligent capacitor can realize between two or many these multipurpose low-voltage intelligent capacitors exchanges data and control the reactive power compensation of realizing electrical network by data line, realize integrated, the needed current value signal of this multipurpose low-voltage intelligent capacitor comes to peripheral total cabinet secondary transmission current, and the microprocessor system that is transferred to the multi-purpose intelligent capacitor via data line by treatment circuit carries out processing with voltage value signal comparison and data, and the result of processing according to data gives the fling-cut switch actuating signal of corresponding multipurpose low-voltage intelligent capacitor.Such as the magnitude of voltage collected through microprocessor system and current value ratio, to the result of deal with data, be that the reactive power of this electrical network is when supply falls short of demand, the microprocessor system of multipurpose low-voltage intelligent capacitor makes the first electric capacitor and the second electric capacitor after the fling-cut switch closure enter operating state, now 2 signal lamps are bright, and the first electric capacitor of this multipurpose low-voltage intelligent capacitor of prompting staff and the second electric capacitor are in working order.When the reactive power demand of this electrical network is little, can only select according to the microprocessor system of this multipurpose low-voltage intelligent capacitor of actual conditions an electric capacitor job of this multipurpose low-voltage intelligent capacitor, when the reactive power demand of this electrical network is very large, the operation of the optional majority platform of the microprocessor system of this integrated multipurpose low-voltage intelligent capacitor multipurpose low-voltage intelligent capacitor realizes the compensation to electrical network, when this multipurpose low-voltage intelligent capacitor during because of the excess Temperature break-off, can be switched another low-voltage intelligent capacitor by microprocessor system and be carried out the reactive power compensation to electrical network.Because reactive power is used for circuit internal electric field and magnetic field, and be used for setting up and maintaining the electrical power in magnetic field in electric equipment, every electric equipment that solenoid is arranged, all will set up magnetic field, will consume reactive power.The present invention both had been applicable to idle distributed compensation on the spot, was applicable to again idle work centralized compensation, also was applicable to low-voltage reactive power grouping compensation.
Although oneself is open as above for embodiment of the present invention, but it is not restricted to listed utilization in specification and execution mode, it can be applied to various applicable the field of the invention fully, for those skilled in the art, can easily realize other modification, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend of describing.
Claims (10)
1. a multipurpose low-voltage intelligent capacitor, is characterized in that, comprising:
The first electric capacitor: comprise three electric capacity, three electric capacity is the parallel AB phase that is connected on the ABC three phase network of wire respectively, the BC phase, AC mutually between, to realize reactive power compensation;
The second electric capacitor: comprise three electric capacity, three electric capacity is the parallel AB phase that is connected on the ABC three phase network of wire respectively, the BC phase, AC mutually between, to realize reactive power compensation;
Temperature sensor: be placed in the middle of the first electric capacitor and the second electric capacitor, to measure the temperature of the first electric capacitor and the second electric capacitor.
2. multipurpose low-voltage intelligent capacitor according to claim 1, it is characterized in that, described the first electric capacitor and the second electric capacitor and middle temperature sensor thereof seal integrated, make the temperature that more accurately measures the first electric capacitor and the second electric capacitor.
3. multipurpose low-voltage intelligent capacitor according to claim 1 and 2, is characterized in that, described the first electric capacitor and the second electric capacitor and middle temperature sensor thereof are fixed in small-sized casing.
4. multipurpose low-voltage intelligent capacitor according to claim 3, is characterized in that, in described casing, also includes:
Fling-cut switch: 1 fling-cut switch comprises 2 magnetic latching relays and 2 thyristors, 1 magnetic latching relay and 1 thyristor in parallel 1 group of switch, 2 groups of switches are 1 fling-cut switches, the first electric capacitor wire connects an end of 1 fling-cut switch, the other end wire of fling-cut switch is connected on three phase network, the second electric capacitor wire connects an end of another 1 fling-cut switch, the other end wire of fling-cut switch is connected on three phase network, wherein 2 of fling-cut switch groups of switches are connected on respectively on any two-phase of three phase network, 2 fling-cut switches are so that three electric capacity of three electric capacity of the first electric capacitor and the second electric capacitor are parallel to respectively on three phase network, fling-cut switch also is connected with the switching signaling module data communication of microprocessor system and is connected with magnetic latching relay driver module wire with thyristor driver circuits for triggering module, with the intelligent drives fling-cut switch, move, the operating state that switches on and off to realize power capacitor by fling-cut switch,
Microprocessor system: comprise master cpu, the voltage signal sampling module, the current signal sampling module, the overvoltage detection module, the switching signaling module, state shows LED, thyristor driver circuits for triggering module and magnetic latching relay driver module, can carry out exchanges data between each module, the voltage signal sampling module with the overvoltage detection module by with the three phase network wire, being connected and obtaining voltage value signal, the current signal sampling module obtains the current value signal by the electric current of peripheral total cabinet treatment circuit mutual inductance through data line, thyristor driver circuits for triggering module is connected to trigger the fling-cut switch action with the magnetic latching relay driver module by the corresponding wire of the thyristor with fling-cut switch and relay, the switching signaling module is by being connected and giving the microprocessor system feedback signal with the fling-cut switch data communication.
5. multipurpose low-voltage intelligent capacitor according to claim 3, it is characterized in that, in described casing, miniature circuit breaker is arranged, its top connection is connected with the three phase network wire, lower contact is all carried out wire with microprocessor system and fling-cut switch and is connected, and by miniature circuit breaker, microprocessor system and fling-cut switch is realized to energising is connected with outage with three phase network.
6. multipurpose low-voltage intelligent capacitor according to claim 3, it is characterized in that, described casing is outside equipped with liquid crystal display, it is connected by data communication and carries out the data processing with the microprocessor system in casing, can be observed power factor, current value, magnitude of voltage, reactive power, whether excess temperature, whether overvoltage, overcurrent whether on LCD Panel.
7. multipurpose low-voltage intelligent capacitor according to claim 3, it is characterized in that, described casing is outside equipped with 2 signal lamps, one end of described signal lamp is connected with the microprocessor system wire in casing, the other end is connected with a wherein phase conductor of electrical network, wherein 1 signal lamp gathers the feedback signal of the first electric capacitor by microprocessor system, another 1 signal lamp gathers the feedback signal of the second electric capacitor by microprocessor system, judge the operating state of the first electric capacitor and the second electric capacitor by the bright dark situation of described signal lamp.
8. multipurpose low-voltage intelligent capacitor according to claim 3, it is characterized in that, be provided with the RS485 interface communication on described casing, microprocessor system data communication in described RS485 interface communication and casing is connected, and this RS485 interface can realize between two or many these multipurpose low-voltage intelligent capacitors that by data line exchanges data and control realize reactive power compensation.
9. multipurpose low-voltage intelligent capacitor according to claim 3, is characterized in that, described casing has the button setting outward, and described button setting is connected with the microprocessor system data communication, realizes the input of relevant parameter by described button setting.
10. multipurpose low-voltage intelligent capacitor according to claim 3, is characterized in that, the processing center of described microprocessor system is dsp chip.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701141A (en) * | 2014-01-08 | 2014-04-02 | 福建阳谷智能技术有限公司 | Novel multifunctional coding switch |
| CN103825286A (en) * | 2014-02-26 | 2014-05-28 | 广西鼎轩科技有限公司 | Intelligent dynamic reactive in-situ compensation device |
| CN106026130A (en) * | 2016-07-11 | 2016-10-12 | 浙江格瑶电子科技有限公司 | Motor energy saving protection device |
| CN109494756A (en) * | 2018-11-07 | 2019-03-19 | 杭州上盈电气有限公司 | A kind of intelligent powerless compensation capacitor |
| CN111509724A (en) * | 2020-05-06 | 2020-08-07 | 国网山东省电力公司电力科学研究院 | Hierarchical power distribution network voltage control method combining decentralized time sequence and centralized model prediction |
| CN112018782A (en) * | 2020-08-13 | 2020-12-01 | 黄山学院 | Intelligent capacitor with synchronous fling-cut switch |
| CN112491062A (en) * | 2020-12-08 | 2021-03-12 | 埃特罗斯(天津)电气科技有限公司 | Reactive power compensation method and reactive compensation intelligent monitoring system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09182296A (en) * | 1995-12-20 | 1997-07-11 | Aichi Electric Co Ltd | Reactive power compensation device |
| CN2904424Y (en) * | 2006-05-17 | 2007-05-23 | 江苏现代电力电容器有限公司 | Intelligent low voltage power capacitor |
| CN201054504Y (en) * | 2007-04-20 | 2008-04-30 | 南通富士特电力自动化有限公司 | Intelligent low-voltage passive compensation integrated module |
-
2013
- 2013-07-30 CN CN2013103243532A patent/CN103441508A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09182296A (en) * | 1995-12-20 | 1997-07-11 | Aichi Electric Co Ltd | Reactive power compensation device |
| CN2904424Y (en) * | 2006-05-17 | 2007-05-23 | 江苏现代电力电容器有限公司 | Intelligent low voltage power capacitor |
| CN201054504Y (en) * | 2007-04-20 | 2008-04-30 | 南通富士特电力自动化有限公司 | Intelligent low-voltage passive compensation integrated module |
Cited By (10)
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| CN103701141A (en) * | 2014-01-08 | 2014-04-02 | 福建阳谷智能技术有限公司 | Novel multifunctional coding switch |
| CN103701141B (en) * | 2014-01-08 | 2016-03-16 | 福建阳谷智能技术有限公司 | Novel multifunctional encoder switch |
| CN103825286A (en) * | 2014-02-26 | 2014-05-28 | 广西鼎轩科技有限公司 | Intelligent dynamic reactive in-situ compensation device |
| CN106026130A (en) * | 2016-07-11 | 2016-10-12 | 浙江格瑶电子科技有限公司 | Motor energy saving protection device |
| CN109494756A (en) * | 2018-11-07 | 2019-03-19 | 杭州上盈电气有限公司 | A kind of intelligent powerless compensation capacitor |
| CN111509724A (en) * | 2020-05-06 | 2020-08-07 | 国网山东省电力公司电力科学研究院 | Hierarchical power distribution network voltage control method combining decentralized time sequence and centralized model prediction |
| CN111509724B (en) * | 2020-05-06 | 2021-09-07 | 国网山东省电力公司电力科学研究院 | Hierarchical power distribution network voltage control method combining decentralized time sequence and centralized model prediction |
| CN112018782A (en) * | 2020-08-13 | 2020-12-01 | 黄山学院 | Intelligent capacitor with synchronous fling-cut switch |
| CN112491062A (en) * | 2020-12-08 | 2021-03-12 | 埃特罗斯(天津)电气科技有限公司 | Reactive power compensation method and reactive compensation intelligent monitoring system |
| CN112491062B (en) * | 2020-12-08 | 2021-11-02 | 埃特罗斯(天津)电气科技有限公司 | Reactive power compensation method and reactive compensation intelligent monitoring system |
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Application publication date: 20131211 |