CN105207232A - Intelligent phase selection control system for 12 kV permanent magnet vacuum circuit breaker - Google Patents
Intelligent phase selection control system for 12 kV permanent magnet vacuum circuit breaker Download PDFInfo
- Publication number
- CN105207232A CN105207232A CN201510659609.4A CN201510659609A CN105207232A CN 105207232 A CN105207232 A CN 105207232A CN 201510659609 A CN201510659609 A CN 201510659609A CN 105207232 A CN105207232 A CN 105207232A
- Authority
- CN
- China
- Prior art keywords
- circuit
- signal
- current
- voltage
- phase selection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Landscapes
- Keying Circuit Devices (AREA)
Abstract
An intelligent phase selection control system for a 12 kV permanent magnet vacuum circuit breaker is composed of a control board and a driving board. After the control board acquires a current signal, a zero-crossing point is extracted from the signal to serve as a reference time point for phase selection control. After receiving a circuit breaker switching-on-off instruction, the control board conducts calculation to obtain a period of delay time and then controls a coil of the driving board to discharge electricity for switch on and off of the circuit breaker. Due to the fact that factors affecting phase selection time accuracy mainly include operating mechanism actuation time, driving board coil excitation time and reference zero point capture and program delay time, the switch on and off action time of a permanent magnetic operating mechanism is basically constant and the excitation time of the coil of the driving board is also a constant value, the accuracy of phase selection control mainly depends on program delay time. By reasonably controlling delay time, switch on and off of the circuit breaker can be achieved at the current zero-crossing point, so that switch on and off inrush current and operation overvoltage transient process are effectively avoided and working reliability of the circuit breaker is improved.
Description
Technical field
The present invention relates to electric and electronic technical field, be specifically related to a kind of 12kV permanent magnetic vacuum breaker intelligent phase selection control system.
Background technology
Circuit breaker is as the visual plant closed in electric power system with cut-off circuit, and the safe and stable operation for whole electrical network has important function.Wherein, vacuum circuit-breaker is with the feature of its inner high vacuum, high dielectric strength, have dielectric strength high, the advantage such as frequently need not to overhaul, obtain in electric power system and apply very widely, especially typical to carry out the reactive power compensation of switching control realization to capacitor.The various structures of vacuum circuit-breaker, develops into spring, hydraulic pressure and permanent magnet mechanism by initial manual type.Wherein permanent magnet mechanism appear at the structure that greatly simplify mechanism, improve the reliability of actuating, its, dispersiveness was little operate time in addition, and deciliter time is tending towards fixed value, conveniently controlled, and therefore obtained tremendous expansion.
Traditional vacuum circuit-breaker lacks the effective control to current phase, very easily causes at the non-near zero-crossing point of electric current deciliter capacitor, thus occurs comparatively serious surge current and switching overvoltage transient process.These transition effects very easily cause the misoperation of secondary side relay equipment, have a strong impact on power supply quality, also cause very large threat to the stable operation of electric power system, electrical network may be caused to paralyse, bring immeasurable serious consequence time serious.
The method that traditional suppression divide-shut brake shoves loads reactor or switching-on resistance, and serious transition effect is divided into multiple more weak transient process, thus within inrush phenomenon is limited in certain amplitude.This method complicated operation, device is easily impaired because frequently switching; Over-voltage suppression transient process then adopts and installs resistance-capacitance absorption device additional, and its principle is exactly the shunt capacitance being increased protected equipment by shunt capacitor.It is very harsh that this device chooses requirement for the resistance of resistance and electric capacity, chooses improperly will produce harmonic wave, adds the failure rate of system on the contrary.
Summary of the invention
Technical problem to be solved by this invention is the deficiency for above-mentioned existence, a kind of 12kV permanent magnetic vacuum breaker intelligent phase selection control system is provided, energy Real-time Collection current phase, and circuit breaker carries out capacitor switching operation at current zero-crossing point place can be controlled, thus effectively avoid divide-shut brake to shove and switching overvoltage transient process, improve the reliability of circuit breaker work.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of 12kV permanent magnetic vacuum breaker intelligent phase selection control system, system primarily of control board and drive plate two parts composition, control board and drive plate mutually isolated.After control board collects current signal, from signal, extract the reference time point of zero crossing as phase-controlled.After receiving the divide-shut brake instruction of circuit breaker, control board, first by calculating one section of delay time, controlling the coil discharge of drive plate again to carry out the breaking-closing operating of circuit breaker, thus ensureing the steady switching realizing capacitor at current zero-crossing point place after time delay.
Control board, for gathering current signal, extracts the reference time point of zero crossing as phase-controlled from signal, after the divide-shut brake instruction receiving circuit breaker, the computation delay time, controls drive plate.
Drive plate, for making permanent magnet mechanism excitatory to permanent magnet mechanism coil discharge, realizes the breaking-closing operating of circuit breaker.
Described control board and drive plate interconnected; The voltage transformer summation current transformer of described control board connects electrical network respectively; Coil control circuit and the circuit breaker of described drive plate are interconnected, the controller connecting breaker of described control board.
Described control board comprises controller, voltage transformer, current transformer, signal acquisition circuit, signal conditioning circuit, divide-shut brake instruction fetch circuit and display circuit; Signal conditioning circuit, divide-shut brake instruction fetch circuit and display circuit be connection control device respectively; The respective input of described voltage transformer summation current transformer difference connection signal Acquisition Circuit, the input of the output connection signal modulate circuit of signal acquisition circuit.
Described voltage transformer summation current transformer gathers voltage signal and current signal respectively from electrical network, and wherein current signal converts same-phase voltage signal to after signal acquisition circuit, extracts the reference zero of system after signal conditioning circuit; After divide-shut brake instruction fetch circuit receives deciliter signal of circuit breaker, controller sends signal to drive plate, realizes point closing operation of circuit breaker; Display circuit is used for showing electrical network parameter in real time, comprises size of current, circuit breaker deciliter state.
Described drive plate is made up of charging capacitor, charging power source circuit, capacitance voltage testing circuit, coil control circuit and drive circuit; The input of described drive circuit and capacitance voltage testing circuit difference connecting coil control circuit; Described capacitance voltage testing circuit and charging capacitor interconnect; Described charging power source circuit connects charging capacitor.
Described charging capacitor is as the driving power of permanent-magnet manipulating mechanism; Described charging power source circuit provides high-quality charge power supply for electric capacity, and realizes overvoltage protection to whole drive plate; Described capacitance voltage testing circuit, by the Real-Time Monitoring to charging capacitor voltage, ensures that charging capacitor both end voltage reaches coil discharge requirement, makes permanent magnet mechanism action message; Described coil control circuit, by the control to the sense of current circulated in coil, realizes separating brake and the closing operation of permanent magnet mechanism.
Described control board carries RT-Thread real time operating system, ensures the accurate delay of system; Conservative control delay time, can make circuit breaker close a floodgate in current zero-crossing point punishment, thus effectively avoid divide-shut brake to shove and switching overvoltage transient process, improve the reliability of circuit breaker work.
Described signal acquisition circuit first converts current signal to synchronous voltage signal by small resistor, described voltage signal is isolated by voltage transformer ZMPT107 after current-limiting resistance R1, carry out the compensation of phase place through electric capacity C15 and resistance R2, then pass through decoupling and the filtering of electric capacity C14 and electric capacity C16 Capacitor banks; By the resistance of adjustment sampling resistor R2, within the voltage range that input voltage can be born in system.
Described signal conditioning circuit includes voltage lifting, filtering, impedance isolation and extracts zero crossing four functions.
Described divide-shut brake instruction fetch electricity routing optocoupler 4N35 composition; Hold at Two-port netwerk junction block Header2, after divide-shut brake instruction exports corresponding signal, this signal is isolated by photoelectrical coupler, and signal is delivered to the GPIO mouth of control board, realizes the read functions of instruction.
Described coil control circuit is H bridge circuit, the action energy using electric capacity as coil; Q01, Q02, Q03, Q04 are insulated gate bipolar transistor IGBT, control Q01, Q04 conducting when sub-switching operation, and Q02, Q03 turn off, and make electric capacity just be to sense of current during circuit-breaker switching on-off coil discharge, complete sub-switching operation; Control Q02, Q03 conducting during closing operation, Q01, Q04 turn off, and when making coil discharge, the sense of current is negative, completes closing operation; To the switching tube of upper and lower bridge arm setting Dead Time during practical operation, prevent upper and lower bridge arm conducting from causing short circuit.
Described drive circuit is made up of driving chip TC4427; After Two-port netwerk junction block Header2 place receives divide-shut brake signal, isolated by photoelectrical coupler, signal is inputed to driving chip TC4427; Driving chip determines whether export big current, to drive insulated gate bipolar transistor IGBT according to the value of this signal; TC4427 maximum output current is 1.5A, ensure that the reliable control of insulated gate bipolar transistor IGBT.
Operation principle of the present invention is, the key technology of phase-controlled system is the accurate of phase-controlled time.The factor affecting phase selection Time precision mainly comprises breaker operation mechanism operate time, drive plate coil magnetization time, the seizure of reference zero and Program time delay time.The substantially constant deciliter operate time of permanent-magnet manipulating mechanism, after drive plate design, its coil magnetization time is also steady state value, the seizure accuracy of reference zero is determined by follow-up hardware designs and program computation, and therefore the accuracy of phase-controlled depends primarily on the time of delay of program.Conservative control delay time, makes circuit breaker realize breaking-closing operating at current zero-crossing point place, so realizes accurate phase-controlled.
Beneficial effect of the present invention is: present system fully grasps the real-time phase information of current signal, the accurate breaking-closing operating realizing circuit breaker at current zero-crossing point place is ensured after receiving circuit-breaker switching on-off signal, effectively prevent the generation of surge current and switching overvoltage, improve reliability and the fail safe of power supply.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention phase-controlled sequential chart;
Fig. 2 is embodiment of the present invention structured flowchart;
Fig. 3 is embodiment of the present invention control board signal acquisition circuit figure;
Fig. 4 is embodiment of the present invention control board signal conditioning circuit figure;
Fig. 5 is embodiment of the present invention control board divide-shut brake instruction fetch circuit diagram;
Fig. 6 is embodiment of the present invention control board display circuit figure;
Fig. 7 is embodiment of the present invention drive plate charging power source circuit figure;
Fig. 8 is embodiment of the present invention drive plate capacitance voltage testing circuit figure;
Fig. 9 is embodiment of the present invention drive plate coil control circuit figure;
Figure 10 is embodiment of the present invention drive plate IGBT drive circuit figure.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
As shown in Figure 1, the controller of 12kV permanent magnetic vacuum breaker intelligent phase selection control system is at t
1the combined floodgate order that reception system or user send, detects that system voltage is with first afterwards zero crossing moment Tzero(or the zero crossing after several half-wave), circuit breaker is closed a floodgate at the phase time Tob point place specified.Circuit breaker mechanical closing time is inherently Tcls, is carved with one section of time delay Td1 when therefore sending reclosing command Tc from zero crossing Tzero to controller.Combined floodgate flow process is: controller reception is closed a floodgate, and order is rear detects a zero crossing as reference time point, after zero crossing, after the time delay of Td1, controller sends reclosing command, after intrinsic breaker closing time Tcls, the phase angle Tob place that circuit breaker is being specified completes closing operation.
As shown in Figure 2,12kV permanent magnetic vacuum breaker intelligent phase selection control system is made up of control board and drive plate two parts.The voltage transformer pt summation current transformer CT of control board collects voltage signal and current signal respectively from electrical network, wherein current signal converts same-phase voltage signal to after signal acquisition circuit, extracts the reference zero of system after signal conditioning circuit.Display circuit shows deciliter state of power grid state information and circuit breaker in real time.After divide-shut brake signal read circuits receives the divide-shut brake signal of circuit breaker, controller sends instruction, makes drive plate carry out the discharge operation of coil.Drive plate adopts charging capacitor as the driving power of permanent magnet mechanism circuit-breaker, the charge power supply providing electric capacity is responsible for by power circuit, capacitance voltage testing circuit Real-Time Monitoring voltage status, ensures that electric capacity both end voltage reaches coil discharge requirement, makes permanent magnet mechanism action message.After receiving the divide-shut brake signal of control board, coil control circuit take electric capacity as action power, makes circuit breaker correct operation by drive circuit.After breaker actuation, signal is returned to control board, complete once complete action.
As shown in Figure 3, intelligent phase selection control system control board signal acquisition circuit first converts current signal to synchronous voltage signal by small resistor, this voltage signal is isolated by voltage transformer ZMPT107 after current-limiting resistance R1, the compensation of phase place is carried out through C15 and R2, then by the decoupling of C14 and C16 Capacitor banks and filtering.By the resistance of adjustment sampling resistor R2, within the voltage range that input voltage can be born in system.
As shown in Figure 4, intelligent phase selection control system control board signal conditioning circuit includes voltage lifting, filtering, impedance isolation and extracts zero crossing four functions.Voltage lifting part is by two resistance R28 and R35 dividing potential drop, and be added to DC quantity AC-input voltage, makes the signal after superposition within 0 ~ 3.3V, meets voltage range when controller A/D changes.Form RC filter circuit by resistance and electric capacity, filtered signal carries out impedance isolation by voltage follower.At TP3 place, input voltage enters the in-phase input end of comparator LTC6702ITS8, and DAU is the direct current component value of this voltage.Carry out voltage compare by comparator, produce square wave at output.STM32 catches the zero crossing that this square wave can collect system voltage.
As shown in Figure 5, intelligent phase selection control system control board divide-shut brake instruction fetch circuit forms primarily of photoelectrical coupler 4N35.Hold at Two-port netwerk junction block Header2, after divide-shut brake instruction exports corresponding signal, this signal is isolated by photoelectrical coupler, and signal is delivered to the GPIO mouth of control board, realizes the read functions of instruction.
As shown in Figure 6, intelligent phase selection control system control board display circuit adopts SDW8060-080-1N20W series industry control screen, supports VGUS configuration development scheme, can design the configuration file generating human-machine interactive information.Screen size is 8 inches, and adopt serial mode and controller to carry out communication, the mode of connection is simple.
As shown in Figure 7, the external 90 ~ 265V AC power of intelligent phase selection control system drive plate charging power source circuit, sends into D15XB60 rectifier bridge module after filtering and carries out rectification after circuit.By inductance L 9 store electrical energy and be input into come voltage signal carry out superposing the boosting realizing signal, thus output capacitance charging needed for+400V DC power supply.Open period at Q1 and Q2, due to the existence of D13, circuit can be made to have continued the charging of subsequent capacitance load, ensure that the continuity of charging.
As shown in Figure 8, intelligent phase selection control system capacitance voltage testing circuit will carry out the amplification of signal through amplifier after capacitance partial pressure, through precision photoelectric coupler HCNR201, voltage signal is converted to current signal, the current signal of output is converted to voltage signal again by amplifier, ensure the magnitude of voltage becoming controller to bear convert of capacitor to voltage, prevent the high voltage at electric capacity two ends from causing interference to control system and destroying.Controller is by AD conversion, and the magnitude of voltage at Real-Time Monitoring electric capacity two ends, ensures that electric capacity both end voltage reaches coil discharge requirement, make permanent magnet mechanism action message.
As shown in Figure 9, intelligent phase selection control system drive plate coil control circuit is H bridge circuit, the action energy using electric capacity as coil.Q01, Q02, Q03, Q04 are insulated gate bipolar transistor IGBT, control Q01, Q04 conducting when sub-switching operation, and Q02, Q03 turn off, and make electric capacity just be to sense of current during circuit-breaker switching on-off coil discharge, complete sub-switching operation.Control Q02, Q03 conducting during closing operation, Q01, Q04 turn off, and when making coil discharge, the sense of current is negative, completes closing operation.To the switching tube of upper and lower bridge arm setting Dead Time during practical operation, prevent upper and lower bridge arm conducting from causing short circuit.
As shown in Figure 10, intelligent phase selection control system drive plate IGBT drive circuit forms primarily of driving chip TC4427.After Two-port netwerk junction block Header2 place receives divide-shut brake signal, isolated by photoelectrical coupler, signal is inputed to driving chip TC4427.Driving chip determines whether export big current, to drive IGBT according to the value of this signal.TC4427 maximum output current is 1.5A, ensure that the reliable control of IGBT.
Claims (9)
1. a 12kV permanent magnetic vacuum breaker intelligent phase selection control system, is characterized in that, comprising:
Control board, for gathering current signal, extracts the reference time point of zero crossing as phase-controlled from signal, after the divide-shut brake instruction receiving circuit breaker, the computation delay time, controls drive plate;
Drive plate, for making permanent magnet mechanism excitatory to permanent magnet mechanism coil discharge, realizes the breaking-closing operating of circuit breaker;
Described control board and drive plate interconnected; The voltage transformer summation current transformer of described control board connects electrical network respectively; Coil control circuit and the circuit breaker of described drive plate are interconnected, the controller connecting breaker of described control board.
2. a kind of 12kV permanent magnetic vacuum breaker intelligent phase selection control system according to claim 1, it is characterized in that, described control board comprises controller, voltage transformer, current transformer, signal acquisition circuit, signal conditioning circuit, divide-shut brake instruction fetch circuit and display circuit; Signal conditioning circuit, divide-shut brake instruction fetch circuit and display circuit be connection control device respectively; The respective input of described voltage transformer summation current transformer difference connection signal Acquisition Circuit, the input of the output connection signal modulate circuit of signal acquisition circuit;
Described voltage transformer summation current transformer gathers voltage signal and current signal respectively from electrical network, and wherein current signal converts same-phase voltage signal to after signal acquisition circuit, extracts the reference zero of system after signal conditioning circuit; After divide-shut brake instruction fetch circuit receives deciliter signal of circuit breaker, controller sends signal to drive plate, realizes point closing operation of circuit breaker; Display circuit is used for showing electrical network parameter in real time, comprises size of current, circuit breaker deciliter state.
3. a kind of 12kV permanent magnetic vacuum breaker intelligent phase selection control system according to claim 1, it is characterized in that, described drive plate is made up of charging capacitor, charging power source circuit, capacitance voltage testing circuit, coil control circuit and drive circuit; The input of described drive circuit and capacitance voltage testing circuit difference connecting coil control circuit; Described capacitance voltage testing circuit and charging capacitor interconnect; Described charging power source circuit connects charging capacitor;
Described charging capacitor is as the driving power of permanent-magnet manipulating mechanism; Described charging power source circuit provides high-quality charge power supply for electric capacity, and realizes overvoltage protection to whole drive plate; Described capacitance voltage testing circuit, by the Real-Time Monitoring to charging capacitor voltage, ensures that charging capacitor both end voltage reaches coil discharge requirement, makes permanent magnet mechanism action message; Described coil control circuit, by the control to the sense of current circulated in coil, realizes separating brake and the closing operation of permanent magnet mechanism.
4. a kind of 12kV permanent magnetic vacuum breaker intelligent phase selection control system according to claim 2, is characterized in that, described control board carries RT-Thread real time operating system, ensures the accurate delay of system; Conservative control delay time, can make circuit breaker close a floodgate in current zero-crossing point punishment, thus effectively avoid divide-shut brake to shove and switching overvoltage transient process, improve the reliability of circuit breaker work.
5. a kind of 12kV permanent magnetic vacuum breaker intelligent phase selection control system according to claim 2, it is characterized in that, described signal acquisition circuit first converts current signal to synchronous voltage signal by small resistor, described voltage signal is isolated by voltage transformer ZMPT107 after current-limiting resistance R1, carry out the compensation of phase place through electric capacity C15 and resistance R2, then pass through decoupling and the filtering of electric capacity C14 and electric capacity C16 Capacitor banks; By the resistance of adjustment sampling resistor R2, within the voltage range that input voltage can be born in system.
6. a kind of 12kV permanent magnetic vacuum breaker intelligent phase selection control system according to claim 2, is characterized in that, described signal conditioning circuit includes voltage lifting, filtering, impedance isolation and extracts zero crossing four functions.
7. a kind of 12kV permanent magnetic vacuum breaker intelligent phase selection control system according to claim 2, is characterized in that, described divide-shut brake instruction fetch electricity routing optocoupler 4N35 composition; Hold at Two-port netwerk junction block Header2, after divide-shut brake instruction exports corresponding signal, this signal is isolated by photoelectrical coupler, and signal is delivered to the GPIO mouth of control board, realizes the read functions of instruction.
8. a kind of 12kV permanent magnetic vacuum breaker intelligent phase selection control system according to claim 3, it is characterized in that, described coil control circuit is H bridge circuit, the action energy using electric capacity as coil; Q01, Q02, Q03, Q04 are insulated gate bipolar transistor IGBT, control Q01, Q04 conducting when sub-switching operation, and Q02, Q03 turn off, and make electric capacity just be to sense of current during circuit-breaker switching on-off coil discharge, complete sub-switching operation; Control Q02, Q03 conducting during closing operation, Q01, Q04 turn off, and when making coil discharge, the sense of current is negative, completes closing operation; To the switching tube of upper and lower bridge arm setting Dead Time during practical operation, prevent upper and lower bridge arm conducting from causing short circuit.
9. a kind of 12kV permanent magnetic vacuum breaker intelligent phase selection control system according to claim 3, it is characterized in that, described drive circuit is made up of driving chip TC4427; After Two-port netwerk junction block Header2 place receives divide-shut brake signal, isolated by photoelectrical coupler, signal is inputed to driving chip TC4427; Driving chip determines whether export big current, to drive insulated gate bipolar transistor IGBT according to the value of this signal; TC4427 maximum output current is 1.5A, ensure that the reliable control of insulated gate bipolar transistor IGBT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510659609.4A CN105207232A (en) | 2015-10-14 | 2015-10-14 | Intelligent phase selection control system for 12 kV permanent magnet vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510659609.4A CN105207232A (en) | 2015-10-14 | 2015-10-14 | Intelligent phase selection control system for 12 kV permanent magnet vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105207232A true CN105207232A (en) | 2015-12-30 |
Family
ID=54954742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510659609.4A Pending CN105207232A (en) | 2015-10-14 | 2015-10-14 | Intelligent phase selection control system for 12 kV permanent magnet vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105207232A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846547A (en) * | 2016-06-14 | 2016-08-10 | 江西航智电气有限公司 | High-voltage intelligent switch |
| CN106451793A (en) * | 2016-11-29 | 2017-02-22 | 国网江苏省电力公司常州供电公司 | Intelligent substation breaker phase selection control method based on digital voltage signal |
| CN107276042A (en) * | 2017-08-02 | 2017-10-20 | 国家电网公司 | Shutting-brake control method based on one or two fusion no-flashy-flow Intelligent power distribution switchs |
| US10566787B2 (en) | 2017-10-25 | 2020-02-18 | Abb S.P.A. | Inrush current detection and control with solid-state switching devices |
| CN111211620A (en) * | 2020-03-05 | 2020-05-29 | 上海电气输配电试验中心有限公司 | Multi-path control system applied to high-voltage phase-selection switch-on switch |
| CN111900007A (en) * | 2020-07-29 | 2020-11-06 | 浙江方圆电气设备检测有限公司 | Method for accurately controlling phase selection closing angle |
| CN112014676A (en) * | 2020-09-11 | 2020-12-01 | 西安高压电器研究院有限责任公司 | Switching test device for capacitor device type test |
| CN112213551A (en) * | 2020-09-30 | 2021-01-12 | 东南大学 | Method for improving phase selection precision of permanent magnet operating mechanism |
| CN112537230A (en) * | 2020-12-23 | 2021-03-23 | 西南交通大学 | Ground phase selection control passing neutral section system and method for electrified rail transit |
| CN112635213A (en) * | 2020-11-27 | 2021-04-09 | 深圳曼顿科技有限公司 | Circuit breaker and opening and closing control method and device thereof |
| CN114496675A (en) * | 2021-12-21 | 2022-05-13 | 平高集团有限公司 | High-voltage circuit breaker and closing control method thereof |
| CN117394835A (en) * | 2023-10-23 | 2024-01-12 | 明芝兰(江苏)电子科技有限公司 | Electronic switch driving circuit, electronic switch and control method |
| CN117438241A (en) * | 2023-12-15 | 2024-01-23 | 霍立克电气有限公司 | Switching-on control method of vacuum circuit breaker |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4819124A (en) * | 1987-07-23 | 1989-04-04 | Mitsubishi Denki Kabushiki Kaisha | Overcurrent detector and circuit breaker |
-
2015
- 2015-10-14 CN CN201510659609.4A patent/CN105207232A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4819124A (en) * | 1987-07-23 | 1989-04-04 | Mitsubishi Denki Kabushiki Kaisha | Overcurrent detector and circuit breaker |
Non-Patent Citations (1)
| Title |
|---|
| 张建国: ""基于单线圈永磁机构的相控开关控制器的设计"", 《中国优秀硕士论文全文数据库 工程科技II辑》 * |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846547A (en) * | 2016-06-14 | 2016-08-10 | 江西航智电气有限公司 | High-voltage intelligent switch |
| CN106451793A (en) * | 2016-11-29 | 2017-02-22 | 国网江苏省电力公司常州供电公司 | Intelligent substation breaker phase selection control method based on digital voltage signal |
| CN106451793B (en) * | 2016-11-29 | 2018-10-16 | 国网江苏省电力公司常州供电公司 | Circuit breaker of intelligent transformer substation phase-controlled method based on digital voltage signal |
| CN107276042A (en) * | 2017-08-02 | 2017-10-20 | 国家电网公司 | Shutting-brake control method based on one or two fusion no-flashy-flow Intelligent power distribution switchs |
| US10566787B2 (en) | 2017-10-25 | 2020-02-18 | Abb S.P.A. | Inrush current detection and control with solid-state switching devices |
| CN111211620A (en) * | 2020-03-05 | 2020-05-29 | 上海电气输配电试验中心有限公司 | Multi-path control system applied to high-voltage phase-selection switch-on switch |
| CN111900007A (en) * | 2020-07-29 | 2020-11-06 | 浙江方圆电气设备检测有限公司 | Method for accurately controlling phase selection closing angle |
| CN112014676B (en) * | 2020-09-11 | 2023-10-13 | 西安高压电器研究院股份有限公司 | Switching test device for capacitor device type test |
| CN112014676A (en) * | 2020-09-11 | 2020-12-01 | 西安高压电器研究院有限责任公司 | Switching test device for capacitor device type test |
| CN112213551A (en) * | 2020-09-30 | 2021-01-12 | 东南大学 | Method for improving phase selection precision of permanent magnet operating mechanism |
| CN112213551B (en) * | 2020-09-30 | 2022-12-06 | 东南大学 | Method for improving phase selection precision of permanent magnet operating mechanism |
| CN112635213A (en) * | 2020-11-27 | 2021-04-09 | 深圳曼顿科技有限公司 | Circuit breaker and opening and closing control method and device thereof |
| CN112537230A (en) * | 2020-12-23 | 2021-03-23 | 西南交通大学 | Ground phase selection control passing neutral section system and method for electrified rail transit |
| CN114496675A (en) * | 2021-12-21 | 2022-05-13 | 平高集团有限公司 | High-voltage circuit breaker and closing control method thereof |
| CN114496675B (en) * | 2021-12-21 | 2024-05-14 | 平高集团有限公司 | High-voltage circuit breaker and closing control method thereof |
| CN117394835A (en) * | 2023-10-23 | 2024-01-12 | 明芝兰(江苏)电子科技有限公司 | Electronic switch driving circuit, electronic switch and control method |
| CN117438241A (en) * | 2023-12-15 | 2024-01-23 | 霍立克电气有限公司 | Switching-on control method of vacuum circuit breaker |
| CN117438241B (en) * | 2023-12-15 | 2024-03-15 | 霍立克电气有限公司 | Switching-on control method of vacuum circuit breaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105207232A (en) | Intelligent phase selection control system for 12 kV permanent magnet vacuum circuit breaker | |
| CN102005742B (en) | Distributed power generation island detection system and method based on power frequency carrier wave | |
| CN205355812U (en) | Looks control system is selected to 12kV permanent magnetism vacuum circuit breaker intelligence | |
| CN106451793B (en) | Circuit breaker of intelligent transformer substation phase-controlled method based on digital voltage signal | |
| CN106373764A (en) | On-load capacitance and voltage regulation system of power distribution transformer | |
| CN103944168A (en) | High-power power quality comprehensive compensation device | |
| CN202797994U (en) | Combination switch for switching of reactive power compensation capacitor | |
| CN203933382U (en) | A kind of APFC of tape jam measuring ability | |
| CN103997199A (en) | Active power factor correction circuit with fault detection function | |
| CN203301164U (en) | Synchronous opening/closing controller | |
| CN105717842A (en) | Zero crossing detection medium voltage on-off controller and control method | |
| CN203232841U (en) | Intelligent vacuum circuit breaker configured with independent zero-sequence current transformer | |
| CN202949231U (en) | Intelligent zero-crossing switching silicon controlled combination switch | |
| CN208690936U (en) | A kind of seamless switching type phase-change switch | |
| CN108599163A (en) | The working method of intermediate frequency furnace harmonic filter system | |
| CN113098060B (en) | Intelligent controllable power switch for new energy grid connection | |
| CN204030614U (en) | A kind of capacitor switching combination switch | |
| CN209329700U (en) | A kind of three-phase commutation circuit and device | |
| CN105471342B (en) | A kind of device and method of nuclear power station stick control generator quick de-excitation | |
| CN204167890U (en) | A kind of single-phase transformer inrush current suppression apparatus | |
| CN208548708U (en) | A kind of over under-voltage protection circuit | |
| CN203193283U (en) | Voltage deviation regulator | |
| CN203504129U (en) | Component for determining breaker switching on/off signal generation | |
| CN201657386U (en) | Zero-crossing circuit of microwave oven | |
| CN206422530U (en) | A kind of anti-interference capacitor composite switching device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151230 |
|
| RJ01 | Rejection of invention patent application after publication |