CN101728114A - Light-operated modularization intelligent vacuum switch with phase-selecting function - Google Patents
Light-operated modularization intelligent vacuum switch with phase-selecting function Download PDFInfo
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Abstract
The invention provides a light-operated modularization intelligent vacuum switch with the phase-selecting function, comprising an intelligent phase-selecting controller low-potential unit, a high-potential unit, a power driving unit, a multi-way energy-acquiring operating power system, a permanent magnet actuating mechanism, a vacuum arc extinguishing chamber, an outer insulating system, and the like. A DSP signal processor with high performance and flexible control technique are adopted to rapidly and accurately judge the optimum switching phase of the switch for reliable operation; an optical control interface is adopted to realize high-pressure and low-pressure isolation, simplify the insulating structure and ensure strong anti-jamming ability; a novel permanent magnet actuating mechanism is adopted to ensure simple structure, flexible control and high reliability; and a novel reliable power source scheme with a multi-way energy-acquiring operating power system for acquiring energy by current, voltage and low potential is adopted. According to the requirement, series-connected and parallel-connected building block combination can be carried out on the light-operated modularization intelligent vacuum switch with the phase-selecting switch so as to realize the intelligent vacuum switch with higher voltage grade.
Description
Technical field
The present invention relates to the light-operated modularization intelligent vacuum switch with phase-selecting function of a kind of light-operated modularization intelligent vacuum switch, particularly a kind of practicability, belong to power high voltage switching technique field.
Background technology
At high pressure and superhigh pressure field sulphur hexafluoride (SF
6) switch is occupied an leading position always, but because SF
6Earth atmosphere there are very strong greenhouse effect, therefore must find out better substitute.Vacuum switch is as a kind of novel electric power switch that has development potentiality, but because the special nature of vacuum medium causes vacuum switch only in the mesolow electric pressure very strong advantage to be arranged at present; And because the restriction of aspects such as technology and processing technology, parameters such as vacuum switch rated current and rated short circuit current can't significantly improve, and can not satisfy big electric current application scenario.Above-mentioned reason has limited the application of vacuum switch in fields such as high pressure, big electric currents.Take the vacuum switch of single break technology path to have very big difficulty, and take the traditional vacuum switch of multi-break technology path, be easy to that there was a mechanical failure because complex structure, operating mechanism component number are many.
Be applied to the vacuum switch of switching capacitive load (capacitor group, unloaded power transmission line) or inductive load (unloaded transformer, reactor), the switch transient process that breaking-closing operating brought can produce various interference to electric power system, cause over-voltage and over-current, even can propagate into far-end and influence the user.This is requiring need draw attention under the more and more stricter electrical network background to the quality of power supply.
Summary of the invention
The object of the present invention is to provide a kind of light-operated modularization intelligent vacuum switch with phase-selecting function, it adopts high performance dsp processor (digital signal processor) and flexible control technique, can judge the best switching phase place of switch rapidly and accurately and carry out reliable operation; Adopt optical control interface to carry out the control signal transmission, can realize the high-low pressure isolation, simplify insulation system, antijamming capability is strong; Adopt current energy-taking, voltage get can and low level send can get in many ways can the operating power system novel reliable source of power scheme; Adopt the novel permanent magnetic operating mechanism, simple in structure, control is flexible, the reliability height; Employing comprises the multiple mechanics of communication of wireless telecommunications and serial communication, realizes the real time information exchange with the power station computer system.As required, can carry out the combination of series and parallel building blocks, realize the more intelligent vacuum switch of voltage levels light-operated intelligent vacuum switch module with phase-selecting function.
Technical scheme of the present invention is: a kind of light-operated modularization intelligent vacuum switch with phase-selecting function, it is characterized in that: it comprises that intelligence selects phase controller electronegative potential unit, intelligence to select phase controller high potential unit, power drive unit, in many ways get energy operating power system, permanent-magnet manipulating mechanism, vacuum interrupter and exterior﹠insulation﹠finish﹠systems;
Intelligence selects phase controller electronegative potential unit, intelligence to select phase controller high potential unit, power drive unit and permanent-magnet manipulating mechanism to be electrically connected successively;
Intelligence is selected in the high and low current potential of the phase controller unit and is adopted digital signal processor;
It is indoor that fixed contact, moving contact and tripping spring are positioned at vacuum extinction, and moving contact directly links to each other with the drive rod of permanent-magnet manipulating mechanism;
In many ways get and the operating power system to be electrically connected, get in many ways and can the operating power system comprise that current energy-taking, voltage are got energy and low level send energy with power drive unit;
Exterior﹠insulation﹠finish﹠systems wrapped vacuum arc control device.
Aforesaid light-operated modularization intelligent vacuum switch with phase-selecting function is characterized in that: intelligence is selected signal transmission employing optical control interface between the high and low current potential of phase controller unit.
Aforesaid light-operated modularization intelligent vacuum switch with phase-selecting function is characterized in that: every phase configuration permanent-magnet manipulating mechanism independently in the vacuum switch three-phase.
Aforesaid light-operated modularization intelligent vacuum switch with phase-selecting function is characterized in that: intelligence selects the communication interface in the phase controller electronegative potential unit to comprise wireless telecommunications and serial communication.
Aforesaid light-operated modularization intelligent vacuum switch with phase-selecting function is characterized in that: the light-operated modularization intelligent vacuum switch with phase-selecting function is carried out the combination of series and parallel building blocks.
Operation principle of the present invention is: intelligence is selected phase controller electronegative potential unit energy real-time judge input information, receive on the spot/the telemechanical operational order after, according to the different loads characteristic, call relevant control strategy subprogram, provide the divide-shut brake signal according to pre-defined algorithm, control switch moves in optimum phase, thereby reduces switch actuating transient state, improves the network system stability and the quality of power supply.Intelligence selects that the phase controller is low, the major function of high potential unit has: 1. gather various types of signal in real time, and mathematical operation and accurately logic control fast; 2. high and low current potential unit by using optical fiber technology is carried out photoelectricity and is isolated the control of realization electronegative potential, high potential action; 3. write down action frequency, switching manipulation logout, switching manipulation transient current and the voltage waveform of switch, be convenient to the system diagnostics analysis; 4. be connected the power station computer system by the various communication interfaces that comprises wireless telecommunications and serial communication, easily realize multi computer communication with the power station computer system.
The invention has the beneficial effects as follows: (1) overall structure adopts modularized design, and volume is little, in light weight, insulation system is simple, and module of the present invention can substitute SF fully by the combination of series and parallel building blocks
6Switch; (2) adopt intelligence to select the high and low current potential of phase controller unit, the control precision height both can realize that the choosing of single vacuum switch module was controlled mutually, can realize that again the choosing of composite module is controlled mutually; (3) the every phase configuration of vacuum switch three-phase permanent-magnet manipulating mechanism independently is to realize three-phase choosing operation mutually; The utilization permanent-magnet manipulating mechanism, simple in structure, good reliability is convenient to the actuating of phase-splitting independence; The moving contact of vacuum interrupter directly links to each other with the drive rod of permanent-magnet manipulating mechanism, cancelled and traditional operating mechanism between insulated tension pole; Permanent-magnet manipulating mechanism and vacuum interrupter are idiostatic, and insulation costs is low, further improve reliability; (4) adopt current energy-taking, voltage get can and low level send can get in many ways can the operating power system novel reliable source of power scheme, the power supply that has solved the high-pressure side electronic circuit is supplied with problem; (5) electric part and signal transmission passage are isolated, and combine the cold end control, the hot end actuating that have really realized the intelligent vacuum switch module with the optical fiber control technology; Optical control interface has been simplified insulation system, and antijamming capability is strong; (6) adopt the multiple mechanics of communication that comprises wireless telecommunications and serial communication, be convenient to realize that the real time information with the power station computer system exchanges
Description of drawings
Fig. 1, the fundamental diagram of the embodiment of the invention.
Fig. 2, the intelligence among Fig. 1 is selected phase controller electronegative potential cell operation schematic diagram.
Fig. 3, the intelligence among Fig. 1 is selected phase controller high potential cell operation schematic diagram.
Fig. 4, permanent-magnet manipulating mechanism among Fig. 1 and vacuum arc extinguish chamber structure schematic diagram.
Fig. 5, power drive unit among Fig. 1 and current energy-taking mode power work schematic diagram.
Fig. 6, the voltage among Fig. 1 get can mode power work schematic diagram.
Fig. 7, the low level among Fig. 1 send can mode power work schematic diagram.
Fig. 8, the intelligence among Fig. 1 is selected phase controller electronegative potential unit software principle figure.
Embodiment
Below in conjunction with drawings and Examples the light-operated modularization intelligent vacuum switch that the present invention has phase-selecting function is described in detail.
The explanation of mark among Fig. 1: 1-intelligence is selected phase controller electronegative potential unit, 2-intelligence is selected phase controller high potential unit, and 3-power drive unit, 4-are got energy operating power system in many ways, the 5-current energy-taking, 6-voltage is got energy, and the 7-low level send energy, 8-permanent-magnet manipulating mechanism, the 9-vacuum interrupter, the 10-exterior﹠insulation﹠finish﹠systems, PT-voltage transformer, CT-current transformer.
The explanation of mark among Fig. 2: 11-signal gathering unit, 12-signal condition unit, 13-A/D converting unit, 14-electronegative potential dsp processor, the man-machine crosspoint of 15-, 16-electronegative potential working power, 17-monitoring record unit, 18-communication interface, 19-optical control interface.
The explanation of mark among Fig. 3: 20-high potential dsp processor, 21-high potential working power, 22-transducer, 23-real-time clock.
The explanation of mark among Fig. 4: the 24-fixed contact, the 25-tripping spring, the 26-moving contact, the 27-cover plate, 28-magnetic circuit guide ring, the 29-permanent magnet, the 30-fixed core, 31-discharges and recharges coil, and 32-is moving unshakable in one's determination, the 33-drive rod.
The explanation of mark among Fig. 5: TVS-instantaneous voltage surge suppressor, B1, B2-rectifier bridge, C1-filter capacitor, C-energy storage capacitor, the high-power controlled thyristor of S-, 34-voltage stabilizing circuit, 35-inverter circuit, 36-storage battery.
The explanation of mark: R1, R2, R3-resistance among Fig. 6, D1, D2, D3-voltage stabilizing didoe, C2, C3-filter capacitor, Q3-thyristor, the i-sense of current.
The explanation of mark among Fig. 7: 37-inverter, K-switch, T-magnet ring, B3-rectifier bridge.
The light-operated modularization intelligent vacuum switch that the embodiment of the invention has phase-selecting function can carry out the combination of series and parallel building blocks with vacuum switch module according to different electric pressures, realizes the more intelligent vacuum switch of voltage levels.
The fundamental diagram of the embodiment of the invention comprises that intelligence selects phase controller electronegative potential unit 1, high potential unit 2 as shown in Figure 1, power drive unit 3, and getting in many ways can operating power system 4, permanent-magnet manipulating mechanism 8, vacuum interrupter 9 and exterior﹠insulation﹠finish﹠systems 10 etc.; Intelligence selects phase controller electronegative potential unit 1, intelligence to select phase controller high potential unit 2, power drive unit 3 and permanent-magnet manipulating mechanism 8 orders to be electrically connected, in many ways get and can operating power system 4 be electrically connected with power drive unit 3, it comprises that current energy-taking 5, voltage are got energy 6 and low level send energy 7; Exterior﹠insulation﹠finish﹠systems 10 wrapped vacuum arc control device 9, every phase configuration permanent-magnet manipulating mechanism 8 independently in the vacuum switch three-phase;
Telemechanical/local operation instruction that intelligence selects phase controller electronegative potential unit 1 reception power station computer system to send, and feedback vacuum switch state information, and from voltage transformer pt summation current transformer CT collection electrical network three-phase voltage and three-phase current signal;
Intelligence selects phase controller high potential unit 2 to collect position of the switch state, control voltage and ambient temperature equal vacuum on off state information, passes to intelligence and selects phase controller electronegative potential unit 1; Intelligence is selected phase controller electronegative potential unit 1 to send operational order and is passed to intelligence and select phase controller high potential unit 2, after intelligence selects phase controller high potential unit 2 to receive operational order, send branch/switching signal to power drive unit 3, with get in many ways can operating power the power drive unit 3 that is electrically connected of system 4 drive permanent-magnet manipulating mechanisms 8, the branch/combined floodgate actuating of realization vacuum switch.
Intelligence among Fig. 1 is selected phase controller electronegative potential unit 1 fundamental diagram as shown in Figure 2, mainly is made up of collection of simulant signal unit 11, analog signal conditioner unit 12, A/D converting unit 13, electronegative potential dsp processor 14, man-machine crosspoint 15, electronegative potential working power 16, system parameters and waveform monitoring record unit 17 and various communication interfaces 18 etc.;
Three phase network voltage that collects from voltage transformer pt summation current transformer CT by collection of simulant signal unit 11 and three-phase current signal through analog signal conditioner unit 12 and A/D converting unit 13 after, be transferred to electronegative potential dsp processor 14; The operational order that utilizes the optical fiber communication interface 19 of the high electronegative potential photoelectricity isolated location of optical fiber technology that electronegative potential dsp processor 14 is sent is passed to intelligence and is selected phase controller high potential unit 2, and, pass to electronegative potential dsp processor 14 with the vacuum switch state information that intelligence selects phase controller high potential unit 2 to collect; Electronegative potential dsp processor 14 connects man-machine crosspoint 15, electronegative potential working power 16, system parameters and waveform monitoring record unit 17, communication interface 18 and optical fiber communication interface 19 respectively, and communication interface 18 adopts the multiple mechanics of communication that comprises wireless telecommunications and serial communication.Intelligence selects phase controller electronegative potential unit 1 to receive telemechanical/local operation instruction that the power station computer system is sent by communication interface 18, and feedback vacuum switch state information.
Intelligence among Fig. 1 is selected phase controller high potential unit 2 fundamental diagrams as shown in Figure 3, and high potential dsp processor 20 wherein connects optical fiber communication interface 19, high potential working power 21, transducer 22 and real-time clock 23 respectively.Transducer 22 comprises position sensor switch, control voltage sensor and environment temperature sensor, high potential unit 2 is gathered the vacuum switch state information in real time by transducer 22 and (is comprised the position of the switch, control voltage, ambient temperature) the optical fiber communication interface 19 by the photoelectricity isolated location sends electronegative potential dsp processor 14 to; After receiving the operational order that sends the electronegative potential unit 1 sent here by optical fiber communication interface 19 when high potential dsp processor 20, send branch, switching signal to power drive unit 3.
Above-mentioned said permanent-magnet manipulating mechanism 8 is an example with the Monostable permanent magnetism operating mechanism, and among Fig. 4, vacuum interrupter 9 comprises fixed contact 24, tripping spring 25, moving contact 26; Monostable permanent magnetism operating mechanism 8 comprises cover plate 27, magnetic circuit guide ring 28, and permanent magnet 29, fixed core 30 discharges and recharges coil 31, moving iron core 32, drive rod 33;
Tripping spring 25 is connected between fixed contact 24 and the moving contact 26; Drive rod 33 links to each other with moving unshakable in one's determination 32, and is connected with moving contact 26 in the vacuum interrupter 9; Non-magnetic conduction cover plate 27 is fixed in the upper end of fixed core 30; Permanent magnet 29 upper ends are connected with magnetic circuit guide ring 28, the lower end with discharge and recharge coil 31 and be connected.Breaking-closing operating adopts the same coil 31 that singly discharges and recharges, and by realizing breaking-closing operating to discharging and recharging coil 31 different directions electric currents, "on" position keeps by magnetic force, and gate-dividing state is by tripping spring 25.In separating brake, be to finish by the energy that discharges tripping spring 25, have higher just-off speed; Monostable permanent magnetism operating mechanism 8 part numbers are few, and moving component has only a moving iron core 32, and mechanical endurance and reliability improve greatly; Monostable permanent magnetism operating mechanism 8 and vacuum interrupter 9 are in same high potential, have simplified insulation; Shared one of its breaking-closing operating discharges and recharges coil 31, has miniaturization and non-maintaining advantage; Operate time, dispersiveness was little, was convenient to realize the actuating of phase-splitting independence.
In many ways get operating power system 4 energy storage capacitor C to be charged always, after high-power controlled thyristor S receives that intelligence is selected the branch/switching signal of phase controller high potential unit 2, the energy storage capacitor C that has been full of electricity discharges to the coil 31 that discharges and recharges in the Monostable permanent magnetism operating mechanism 8, produces pulsed magnetic field driving moving unshakable in one's determination 32 and moves.
Among Fig. 5, get in many ways and can operating power system 4 adopt direct method from the high-voltage side bus current energy-taking.When the vacuum switch is in closure state, current transformer CT directly takes out energy from the load current of electrical network, through instantaneous voltage surge suppressor TVS, become the low-voltage direct source behind rectifier bridge B1, filter capacitor C1 and the voltage stabilizing circuit 34, behind inverter circuit 35 and rectifier bridge B2, give energy storage capacitor C charging again.When the vacuum switch was in gate-dividing state or system's zero load, current transformer CT can't directly take out energy from power network current, can increase a storage battery 36 before inverter circuit 35.Simultaneously storage battery 36 is carried out the constant voltage floating charge electricity through the low-voltage direct source behind the voltage stabilizing circuit 34, when the current energy-taking mode gets nowhere, after storage batteries 36 is carried out inverter circuit 35 and rectifier bridge B2, give energy storage capacitor C charging.
Voltage among Fig. 1 is got energy mode power work schematic diagram as shown in Figure 6, for further guaranteeing the operating power supply of vacuum switch under long-term separating brake condition, also adopt voltage to get and to guarantee reliably to get energy by the mode power supply, when voltage during at positive half cycle, current i is a direction shown in the figure, charges to energy storage capacitor C by filter capacitor C2, resistance R 1 and voltage stabilizing didoe D3.When the terminal voltage of energy storage capacitor C surpasses voltage stabilizing didoe D1 amplitude limit value, thyristor Q3 conducting, voltage stabilizing didoe D3 ends, and stops to charge to energy storage capacitor C.The terminal voltage of energy storage capacitor C remains amplitude limit value, and the energy storage of energy storage capacitor C is exactly a working power.
Power-off time is oversize when vacuum switch both sides, current energy-taking and voltage are got and can mode all can not be obtained energy and battery feed when not enough, can adopt low level to send the energy mode, low level among Fig. 1 send and can see Fig. 7 by mode power work schematic diagram, be in earthy any DC power supply, obtain source of high frequency current through inverter 37.According to electromagnetic induction principle, earthy energy is delivered to the high-pressure side by magnet ring T.The high frequency electric source that is obtained by magnet ring T is through charging for energy storage capacitor C behind filtering, voltage stabilizing and the rectifier bridge B3.After substituting the bad for the good, cut-off switch K stops to charge to energy storage capacitor C.
Embodiment: the power station computer system is sent action command, intelligence selects phase controller electronegative potential unit 1 according to the electrical network three-phase voltage and the three-phase current signal that collect from voltage transformer pt summation current transformer CT, calculate best branch/combined floodgate phase place, simultaneously according to the vacuum switch state information (position of the switch of selecting phase controller high potential unit 2 to collect in real time by the intelligence of optical control interface 19 transmission, control voltage and ambient temperature etc.), respectively from position sensor switch, control voltage sensor and environment temperature sensor, constantly adjust the compensating parameter of switch motion time, send operational order after calculating the time-delay that needs; Intelligence is sent branch, switching signal to power drive unit 3 after selecting phase controller high potential unit 2 to receive operational order by optical control interface 19; Rely on get in many ways can operating power system 4 reliable power supply, power drive unit 3 select in intelligence give permanent-magnet manipulating mechanism 8 under the control of phase controller high potential unit 2 discharge and recharge coil 31 chargings, realize the branch/combined floodgate actuating of vacuum switch; After the vacuum switch release, intelligence is selected phase controller electronegative potential unit 1 recording operation result, and by communication interface 18 vacuum switch state information and operating result is transmitted back to the power station computer system.
Intelligence among Fig. 1 is selected phase controller electronegative potential unit 1 software principle figure as shown in Figure 8, in order to guarantee the control system operate as normal, and must self check during startup.After System self-test passed through, program entered initial phase, comprised the setting of DSP control register, the initialization of timer, internal data memory.System do not receive on the spot/during the telemechanical instruction, finishes electrical network parameter collection, control voltage and ambient temperature monitoring, uploads functions such as data for the power station computer system.When receive on the spot by various communication interfaces 18/telemechanical instruction after, detect on off state information such as control voltage, ambient temperature and switch contact position and whether satisfy the divide-shut brake condition, and then self adaptation is calculated the required time-delay triggered time of best divide-shut brake phase place, call the correlator program according to the different loads characteristic, finish the function and the recording operation result that select the phase divide-shut brake.
Claims (5)
1. light-operated modularization intelligent vacuum switch with phase-selecting function, it is characterized in that: it comprises that intelligence selects phase controller electronegative potential unit, intelligence to select phase controller high potential unit, power drive unit, in many ways get energy operating power system, permanent-magnet manipulating mechanism, vacuum interrupter and exterior﹠insulation﹠finish﹠systems;
Intelligence selects phase controller electronegative potential unit, intelligence to select phase controller high potential unit, power drive unit and permanent-magnet manipulating mechanism to be electrically connected successively;
Intelligence is selected in the high and low current potential of the phase controller unit and is adopted digital signal processor;
It is indoor that fixed contact, moving contact and tripping spring are positioned at vacuum extinction, and moving contact directly links to each other with the drive rod of permanent-magnet manipulating mechanism;
In many ways get and the operating power system to be electrically connected, get in many ways and can the operating power system comprise that current energy-taking, voltage are got energy and low level send energy with power drive unit;
Exterior﹠insulation﹠finish﹠systems wrapped vacuum arc control device.
2. the light-operated modularization intelligent vacuum switch with phase-selecting function according to claim 1 is characterized in that: intelligence is selected signal transmission employing optical control interface between the high and low current potential of phase controller unit.
3. the light-operated modularization intelligent vacuum switch with phase-selecting function according to claim 1 is characterized in that: every phase configuration permanent-magnet manipulating mechanism independently in the vacuum switch three-phase.
4. the light-operated modularization intelligent vacuum switch with phase-selecting function according to claim 1 is characterized in that: intelligence selects the communication interface in the phase controller electronegative potential unit to comprise wireless telecommunications and serial communication.
5. the light-operated modularization intelligent vacuum switch with phase-selecting function according to claim 1 is characterized in that: the light-operated modularization intelligent vacuum switch with phase-selecting function is carried out the combination of series and parallel building blocks.
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| CN200810197416A CN101728114B (en) | 2008-10-28 | 2008-10-28 | Light-operated modularization intelligent vacuum switch with phase-selecting function |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024583A (en) * | 2010-12-14 | 2011-04-20 | 深圳市金博联电力技术有限公司 | Monostable permanent magnet mechanism single coil switching on/off speed adaptive control method |
| CN103165342A (en) * | 2013-04-09 | 2013-06-19 | 滁州学院 | Intelligent controller for split phase type quick permanent magnet vacuum circuit breaker |
| CN103248117A (en) * | 2013-04-16 | 2013-08-14 | 珠海博威电气有限公司 | PT-free intelligent high-voltage switch |
| CN103441024A (en) * | 2013-08-18 | 2013-12-11 | 安徽硕日光电科技有限公司 | High-current output intelligent control device for electromagnetic thrust actuating mechanism |
| CN104578105A (en) * | 2014-12-31 | 2015-04-29 | 国家电网公司 | Intelligent switching device and method of paralleling reactor |
| CN105846547A (en) * | 2016-06-14 | 2016-08-10 | 江西航智电气有限公司 | High-voltage intelligent switch |
| CN107068504A (en) * | 2017-05-05 | 2017-08-18 | 平高集团有限公司 | The phase selection control method and device of a kind of dual operation mechanisms breaker |
| CN110083108A (en) * | 2019-05-18 | 2019-08-02 | 南京飞兆电子科技有限公司 | One kind can split-phase operation monostable permanent-magnet switch controller and control method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1185668C (en) * | 2001-07-12 | 2005-01-19 | 大连理工大学 | Light controlled modualr high-pressure vacuum switch techonlogy |
| CN2544403Y (en) * | 2002-05-27 | 2003-04-09 | 宁波伟隆电器成套有限公司 | Low-voltage phase-selective on/off vacuum switch |
| CN201282069Y (en) * | 2008-10-28 | 2009-07-29 | 国网武汉高压研究院 | Light control modularization intelligent vacuum switch with phase-selecting function |
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- 2008-10-28 CN CN200810197416A patent/CN101728114B/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024583A (en) * | 2010-12-14 | 2011-04-20 | 深圳市金博联电力技术有限公司 | Monostable permanent magnet mechanism single coil switching on/off speed adaptive control method |
| CN103165342A (en) * | 2013-04-09 | 2013-06-19 | 滁州学院 | Intelligent controller for split phase type quick permanent magnet vacuum circuit breaker |
| CN103248117A (en) * | 2013-04-16 | 2013-08-14 | 珠海博威电气有限公司 | PT-free intelligent high-voltage switch |
| CN103248117B (en) * | 2013-04-16 | 2015-08-05 | 珠海博威电气有限公司 | PT-free intelligent high-voltage switch |
| CN103441024A (en) * | 2013-08-18 | 2013-12-11 | 安徽硕日光电科技有限公司 | High-current output intelligent control device for electromagnetic thrust actuating mechanism |
| CN104578105A (en) * | 2014-12-31 | 2015-04-29 | 国家电网公司 | Intelligent switching device and method of paralleling reactor |
| CN105846547A (en) * | 2016-06-14 | 2016-08-10 | 江西航智电气有限公司 | High-voltage intelligent switch |
| CN107068504A (en) * | 2017-05-05 | 2017-08-18 | 平高集团有限公司 | The phase selection control method and device of a kind of dual operation mechanisms breaker |
| CN110083108A (en) * | 2019-05-18 | 2019-08-02 | 南京飞兆电子科技有限公司 | One kind can split-phase operation monostable permanent-magnet switch controller and control method |
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