WO2020083181A1 - Circuit et dispositif d'extinction d'arc à courant alternatif, et système de commutation - Google Patents

Circuit et dispositif d'extinction d'arc à courant alternatif, et système de commutation Download PDF

Info

Publication number
WO2020083181A1
WO2020083181A1 PCT/CN2019/112182 CN2019112182W WO2020083181A1 WO 2020083181 A1 WO2020083181 A1 WO 2020083181A1 CN 2019112182 W CN2019112182 W CN 2019112182W WO 2020083181 A1 WO2020083181 A1 WO 2020083181A1
Authority
WO
WIPO (PCT)
Prior art keywords
switch
arc extinguishing
capacitor
control unit
mechanical
Prior art date
Application number
PCT/CN2019/112182
Other languages
English (en)
Chinese (zh)
Inventor
郭桥石
Original Assignee
郭桥石
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 郭桥石 filed Critical 郭桥石
Priority to CN201980058711.5A priority Critical patent/CN112753084B/zh
Publication of WO2020083181A1 publication Critical patent/WO2020083181A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/42—Impedances connected with contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere

Definitions

  • the present invention relates to an AC arc extinguishing circuit and device, especially an AC arc extinguishing circuit and device suitable for extinguishing mechanical contacts such as multi-channel AC contactors, relays, etc., and can also be used for other breakpoints (such as fuse links) Fuse, breakpoint between plug and socket, wire breakpoint), and a switching system using the AC arc extinguishing device of the present invention.
  • One is the resistance-capacitance absorption circuit used in small current products; the other is an electronic arc extinguishing device with a parallel capacitor extinguisher used in high-priced products such as dual power switching and medium and high voltage circuit breakers.
  • the former can only be used in small current applications Used, the latter has low capacitor utilization rate, high cost, small application range, poor versatility, and is difficult to popularize.
  • the purpose of the present invention is to solve the problem of short electrical life of multi-path mechanical switches in existing AC electric control systems, and to provide an AC arc extinguishing circuit for multi-path mechanical switches with arc extinction, wide application range, and high utilization rate of capacitance and Device, and to provide a switch system using a mechanical switch with low cost, small size, and extremely low operating cost, and using the AC arc extinguishing device of the present invention.
  • a mechanical switch required for arc extinguishing is connected to a load, which includes a capacitor and a first switch.
  • the power supply connected to the mechanical switch supplies the load through the capacitor and the first switch.
  • the mechanical switch is extinguished.
  • the number of mechanical switches, loads, and first switches is at least two.
  • the first switch is a semiconductor switch.
  • An AC arc extinguishing circuit further includes a second switch and a third switch.
  • the first switch includes a first device and a second device.
  • the first switch, the second switch, and the third switch are Control semiconductor switch;
  • the power supply supplies power to the load through the second switch, the capacitor, and the first device;
  • the power supply supplies power to the load through the third switch, the capacitor, and the second device.
  • An AC arc extinguishing device including the AC arc extinguishing circuit described above, and further including a control unit, the control signals of the first device, the second device, the second switch, and the third switch are The control unit provides that the control unit is connected to the capacitor.
  • the mechanical switch K required to extinguish the arc is connected to the load RL.
  • An AC arc extinguishing circuit includes a capacitor C1, a first switch S1, and the mechanical switch K is connected during the mechanical switch K is disconnected.
  • the power supply of the power supply in turn supplies power to the load RL through the capacitor C1 and the first switch S1.
  • the voltage across the load RL increases rapidly, and the potential difference across the mechanical switch K decreases rapidly, achieving the purpose of the mechanical switch K breaking and extinguishing the arc.
  • the invention has reasonable design, and the invention has the advantages of high utilization rate of capacitance.
  • FIG. 1 is a circuit schematic diagram of the AC arc extinguishing circuit of the present invention.
  • FIG. 2 is a principle diagram of an embodiment of the AC arc extinguishing circuit, device, and switching system of the present invention.
  • FIG. 3 is a circuit schematic diagram of the charging circuit of the AC arc extinguishing circuit of the present invention.
  • FIG. 4 is a circuit schematic diagram of the photoelectric coupling unit of the AC arc extinguishing circuit of the present invention.
  • FIG. 5 is a schematic diagram of the second embodiment of the AC arc extinguishing device and the switching system of the present invention.
  • FIG. 6 is a schematic diagram of a circuit of a semi-controlled device of the present invention connected in series with an uncontrollable device.
  • FIG. 2 The first embodiment of the AC arc extinguishing circuit, AC arc extinguishing device and switch system of the present invention is shown in Fig. 2:
  • a mechanical switch K required for arc extinguishing is connected to a load RL, which includes a capacitor C1, a first switch S1, and during the breaking of the mechanical switch K, the power supply connected to the mechanical switch K passes through the capacitor C1, the first switch S1 supplies power to the load RL for the arc extinguishment of the mechanical switch K, and further includes a second switch S2 and a third switch S3.
  • the first switch S1 includes a first device SCR1, a second device SCR2, a first switch S1, and a second switch S2 3.
  • the third switch S3 is a controllable semiconductor switch.
  • the first device SCR1 and the second device SCR2 are connected in series in the same direction to form a first series circuit.
  • the common terminal of the first device SCR1 and the second device SCR2 is connected to the load RL.
  • the capacitor C1 is connected for reverse pre-charging (As shown in Figure 3, this circuit can also be used as a discharge circuit, which can be built in the control unit A and completed by the control unit A; you can also choose other charging circuits, such as switching power supply, capacitor C1 front end using a capacitor in advance Fully charged, charge capacitor C1, improve the response speed of secondary arc extinguishment, especially suitable for arc extinguishing failure to quickly supplement the arc extinguishing energy of capacitor C1, which can be built in control unit A).
  • Charging circuit reverse pre-charge the capacitor C1, can also be used to pre-energize the load RL, including the fifth device S5, transformer T1 (power frequency transformer can be used), first diode D1, first element R1 (resistor , Or inductance, optional), second diode D2 (optional), third diode D3 (optional, when the internal resistance of the transformer output winding is large, the third diode D3 can be omitted), transformer The output terminal of T1 is connected to the capacitor C1 through the second diode D2, the third diode D3, the fifth device S5, and the first element R1, and the capacitor C1 passes through the first diode D1, the fifth device S5, the first element R1 discharge.
  • transformer T1 power frequency transformer can be used
  • first diode D1 first element R1 (resistor , Or inductance, optional)
  • second diode D2 optional
  • third diode D3 optional, when the internal resistance of the transformer output winding is large, the third diode D3 can
  • the fifth device S5 When the fifth device S5 is turned on before the mechanical switch K is closed, it is used for the mechanical switch K to close and extinguish the arc; or the fifth device S5 is turned on before the mechanical switch K1 is closed, used for the load RL (capacitive load, such as reactive power compensation Capacitor) pre-charged.
  • the load RL capacitor load, such as reactive power compensation Capacitor
  • the fifth device S5 is used for discharging the capacitor C1; the fifth device S5 is preferably a unidirectional thyristor.
  • An AC arc extinguishing device including the AC arc extinguishing circuit described above, which further includes a control unit A, the control signals of the first device SCR1, the second device SCR2, the second switch S2, and the third switch S3 are controlled by the control unit A provide.
  • the voltage signal of the capacitor C1 is transferred to the control unit A (it can be used to detect the capacity of the capacitor C1, or a current sensor can be used to detect the current signal of the capacitor C1, and the current signal is transferred to the control unit A).
  • the control unit A asynchronously provides a pulse signal to the first A device SCR1, a second device SCR2, a second switch S2, and a third switch S3 are used to detect the first device SCR1, the second device SCR2, the second switch S2, and the third switch S3, and can be used to detect whether the arc extinguishment is completed, Or check for breakdown.
  • the photo-coupling unit is used to detect the voltage across the capacitor C1.
  • the photo-coupling unit includes a second current-limiting element R2 and a photo-coupler (OPT1 , OPT2), the series circuit composed of the second current limiting element R2 and the optocoupler (OPT1, OPT2) is connected to the capacitor, the output signal of the optocoupler (OPT1, OPT2) is passed to the control unit A;
  • the optocoupler unit is a bidirectional input , Dual output voltage detection unit, the first optocoupler OPT1 and the second optocoupler OPT2 are connected in reverse parallel, or the first optocoupler OPT1 and the second optocoupler OPT2 are connected in series in reverse, the first optocoupler OPT1 A diode is connected in parallel with the second photocoupler OPT2.
  • J1 can be connected to an external power port (optional); J2 is a communication port for transmitting and receiving related information.
  • the potential difference between the two ends of the switch K drops rapidly (or the negative voltage across the mechanical switch K appears) to achieve the purpose of extinguishing the arc of the mechanical switch K; during the negative conduction of the mechanical switch K during the breaking process, the power passes through the third switch S3 and the capacitor C1, the second device SCR2 supplies power to the load, and the potential difference between the two ends of the mechanical switch K drops rapidly to achieve the purpose of extinguishing the mechanical switch K; after the arc extinction is completed, the control unit A discharges the capacitor C1 and then reverses the capacitor C1 Charging and preparing for the next working process.
  • Control unit A used to charge and discharge capacitor C1. In order to improve the response speed, control unit A uses semiconductor switches to charge and discharge capacitor C1. A programmable device (such as a microcontroller) is built in. Control unit A has a built-in control program. Intelligent unit, without increasing hardware resources or adding very few hardware resources, realizes the adjustment of the control method of multi-channel load RL according to their different conditions (capacitive, inductive, resistive, current) to improve the arc extinguishing effect.
  • the control unit A Since the electrical characteristics of the multiple mechanical switches K and the multiple loads RL connected to the control unit A may not be consistent, in order to achieve the best arc extinguishing effect, the control unit A stores the parameters related to the current of the load RL, or inputs the current related to the load RL Related parameters or signals, or the operating time parameters of the mechanical switch K, the charging voltage of the capacitor C1 is proportional to the current through the mechanical switch K that needs to be extinguished (using the control unit A to adjust the charging voltage of the capacitor C1), mechanical During the operation of the switch K, the delay time of the first switch S1, the second switch S2, and the third switch S3 is proportional to the current of the load RL.
  • the delay time parameter can be controlled by the programmable device built in the control unit A Complete; help to overcome the impact of overvoltage on the system during the arc extinguishing process and achieve the best arc extinguishing effect.
  • the control signal of the mechanical switch K (not limited to provided by the control end of the mechanical switch K, but also provided by the J2 port) is transmitted to the control unit A, or the control signal of the mechanical switch K is provided by the control unit A, or the mechanical switch K is used
  • the auxiliary switch signal is transmitted to the control unit A, which can also be used in combination with any of the preceding, which is conducive to controlling the first switch S1, the second switch S2, and the third switch S3 to be turned on in advance before closing the mechanical switch K, and is conducive to Improve the accuracy and real-time performance of arc extinguishment, which is more conducive to optimizing the control of the action logic and arc extinguishing control logic of each mechanical switch.
  • the control unit A is used to record the operation times of the mechanical switch, and the control unit A detects (by detecting the corresponding voltage signal, or the auxiliary switch of the mechanical switch K, or the load current) that the contact of the mechanical switch K is opened.
  • the control unit A may include a display unit, or a display unit (which may be connected by a communication port) is used to display the operating state of the mechanical switch K, the number of operations of the mechanical switch K, the arc extinguishing operating state, and the remaining life of the mechanical switch K (mechanical life, Information such as electrical life); the control unit A may include an input unit (keys, etc.), or an input unit (which may be connected using a communication port) is connected.
  • the voltage signal at the common terminal of the mechanical switch K and the load RL is transferred to the control unit A (the voltage across the load RL, or the voltage across the mechanical switch K, or the voltage of the common terminal relative to the capacitor C1), and the input power of the mechanical switch K Is connected to the control unit A.
  • control unit A under the condition that the control unit A detects that the arc extinguishment has failed (the control unit A knows from the voltage or current of the capacitor C1; the control unit A charges the capacitor C1 again, and then performs the second arc extinguishment, it can be The reliability of arc extinction and the response speed of secondary arc extinction are greatly improved; the control unit A uses a transformer to drive the first switch S1, the second switch S2, and the third switch S3.
  • the number of mechanical switch K, load RL, first switch S1 is two or more, and the resources such as capacitor C1, second switch S2 (optional), third switch S3 (optional), control unit A, etc. can be reached.
  • the purpose of amplitude saving cost and volume reduction, at the same time, the arc extinguishing voltage is higher than the working voltage of the load RL, which effectively overcomes the line loss caused by the layout of the multi-mechanical switch K and the capacitance C1 is too long relative to the load RL arc extinction circuit.
  • a mechanical current switch of ampere current is extinguished)
  • One or more diodes are connected in series (uncontrolled device, the conventional withstand voltage of the diode can reach 1000 to 2000 volts, the rated current of 10 ampere diode is used, and the mechanical switch of thousands of ampere current can be extinguished.
  • the working reliability of the diodes used in design and selection is better than that of semi-controlled devices) (as shown in Figure 6), which can greatly improve the insulation withstand voltage between the output terminals of each mechanical switch (easy to reach 6000 volts) , Or more than ten thousand volts), has the advantages of low cost, high withstand voltage capability, strong overcurrent capability, and high reliability.
  • the above first device SCR1, second device SCR2, second switch S2, and third switch S3 are controllable semiconductor switches, preferably semi-controlled devices, and the semi-controlled devices are preferably unidirectional thyristors; the second switch S2,
  • the current-carrying capacity of the third switch S3 is greater than that of the first switch S1 (first device SCR1, second device SCR2).
  • the fully-controlled device needs at least one diode in series.
  • the mechanical switch K of the arc extinguishing device required by the AC arc extinguishing device of the present invention can be a mechanical switch (relay, contactor, travel switch, etc.) that does not have a breaking force (voltage, current breaking force) under working conditions, which can be greatly reduced
  • a mechanical switch resistor, contactor, travel switch, etc.
  • the mechanical switch without breaking force has a slower breaking and closing speed of the mechanical contacts, less mechanical impact, and a higher operating electrical life than the mechanical switch with breaking force.
  • the mechanical switch K When the mechanical switch K is in motion and may Under the condition of unexpected mechanical shock, the mechanical switch K may be accidentally closed and broken under the normally open state, or the opening distance becomes smaller, or the surge voltage appears at both ends of the mechanical switch K, then an arc may occur, when the control unit A When arcing is detected in the mechanical switch K breaking state, the control unit A controls the first switch S1, the second switch S2, and the third switch S3 to extinguish the arc.
  • FIG. 5 The second embodiment of the AC arc extinguishing device and the switching system of the present invention is shown in FIG. 5:
  • An AC arc extinguishing device that is, a multi-channel mechanical switch management system (single or multi-channel mechanical switch arc management system), the above arc extinguishing device is placed in a housing, as a versatile product, through the terminal It is connected with external mechanical switches and host computers to facilitate safety certification and popularization. Its specific shape can be flexibly designed according to needs, and the ground end can be selected according to needs.
  • a switch system including the placement of the arc extinguishing device described above also includes a mechanical switch K, the body of the mechanical switch K does not have a breaking force for the load current (Refers to the condition that the AC arc extinguishing device of the present invention does not intervene in arc extinguishing).
  • the AC arc extinguishing device of the present invention is not only an intelligent electronic arc extinguishing system that increases the electrical life of mechanical switches, but also can be used as mechanical switch life calculation and end of life prediction, mechanical switch operation times recording, without increasing hardware resources.
  • the multi-channel mechanical switch intelligent management system for the detection of the working state of the mechanical switch can also greatly reduce the manual maintenance cost and operating cost of the system (electronic control system), improve the safety of the system operation, and increase the intelligent level of the equipment, without the need for bulkiness
  • Expensive high-breaking mechanical switches reduce the environmental pollution caused by frequent replacement of switches, have high economic value and social value, and are extremely conducive to changing the status of electronic arc extinguishment that is difficult to popularize.
  • the switching system using the AC arc extinguishing device of the present invention not only combines the advantages of the AC arc extinguishing device of the present invention, but the mechanical switch body does not have a breaking force to the load current, which breaks through the design specifications of the traditional switching system.
  • the mechanical switch has a smaller opening distance of the contact and a slower breaking speed (reduced drive power consumption and mechanical impact on the switch itself), without the need for arc extinguishing grid, vacuum or gas extinguishing.
  • mechanical switches have the advantages of low cost, small closing bounce, large connecting current, low power consumption, longer mechanical life, low working noise and small size.
  • the capacitor C1 can be connected in series with an inductor current limit (which can be omitted when the capacitor C1 has a large internal resistance to the load RL working line), which is used to increase the supply time of the capacitor C1 to the load RL and reduce the current rise rate; series inductance Selection of parameters: Under actual working conditions, the device makes the current rise rate through the first switch S1 less than the limit rise rate of the first switch S1; in order to achieve the best efficiency and safety, a pair of wires can be used on site Short-circuit the two ends of the load RL; or use a capacitor (or other capacitive or resistive load) in parallel with the two ends of the load RL; the capacitor C1 is charged, and then the first switch S1 is turned on, the system voltage and the voltage of the capacitor C1 are superimposed, so that The rate of current rise through the first switch S1 is less than the limit rate of rise of the first switch S1 (first device SCR1, second device SCR2), second switch S2, and third switch S3.
  • the above embodiments are particularly suitable for extinguishing arcs of mechanical switches such as contactors and relays in AC systems below 1200 volts.
  • the working principle is the same.
  • the capacity of the capacitor C1 is preferably such that the on-time of the first switch S1 is not greater than 1 millisecond (200 microseconds is preferred. It is recommended that when the contact of the mechanical switch K has a certain opening distance, The penetration voltage is greater than the working voltage of the mechanical switch K, the first switch S1 is turned on, as long as the load has a pulse current of tens of microseconds to achieve a satisfactory arc extinguishing effect,), the arc extinguishing device of the present invention can easily meet 100 times The frequency of arc extinguishing above per second.
  • the AC of the present invention includes sine wave AC (such as power frequency), square wave AC (DC commutation) and other AC.
  • each mechanical switch connected to the load is connected through a semiconductor device (first switch S1), the capacitor utilization rate is high, the cost is greatly saved, the volume is reduced, and the response speed of the arc extinction is improved.
  • capacitors to facilitate energy storage boosting can provide electrical pulses greater than the input power supply voltage of the mechanical switch to the load. It can also output a large extinction under the conditions of long arc extinction circuit, small wire diameter and large internal resistance.
  • Arc current (1 square wire can transmit several hundred to thousands of amps of current); when the voltage pre-reverse charging technology is used, the arc extinction voltage is the capacitor voltage and the AC sine wave voltage superimposed (the capacitor pre-charge voltage is recommended to be no higher than 50% of the AC peak voltage), the arc extinguishing voltage can float with the AC sine wave voltage.
  • the present invention has the advantages of high capacitance utilization rate and wide application range.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

L'invention concerne un circuit et un dispositif d'extinction d'arc à courant alternatif, et un système de commutation, appropriés pour effectuer une extinction d'arc sur des contacts mécaniques tels qu'un contacteur à courant alternatif à trajets multiples et un relais. Le circuit d'extinction d'arc à courant alternatif comprend un condensateur (C1) et un premier commutateur (S1). Dans un processus de coupure d'un commutateur mécanique (K), une alimentation électrique connectée au commutateur mécanique (K) fournit de l'énergie à une charge (RL) à travers le condensateur (C1) et le premier commutateur (S1) afin d'effectuer l'extinction d'arc sur le commutateur mécanique (K). Il y a au moins deux premiers commutateurs (S1), des commutateurs mécaniques (K) et des charges (RL), et les premiers commutateurs (S1) sont des commutateurs à semi-conducteurs. Le circuit d'extinction d'arc à courant alternatif présente les avantages d'un faible coût, d'un circuit simple, et d'une fiabilité élevée.
PCT/CN2019/112182 2018-10-22 2019-10-21 Circuit et dispositif d'extinction d'arc à courant alternatif, et système de commutation WO2020083181A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201980058711.5A CN112753084B (zh) 2018-10-22 2019-10-21 交流灭弧电路及装置、开关***

Applications Claiming Priority (16)

Application Number Priority Date Filing Date Title
CN201811232292 2018-10-22
CN201811232292.6 2018-10-22
CN201811315047.1 2018-11-06
CN201811315047 2018-11-06
CN201910498786 2019-06-10
CN201910498786.7 2019-06-10
CN201910498421 2019-06-11
CN201910498421.4 2019-06-11
CN201910524790 2019-06-18
CN201910524790.6 2019-06-18
CN201910556843 2019-06-25
CN201910556843.2 2019-06-25
CN201910658356.7 2019-07-21
CN201910658356 2019-07-21
CN201910946658 2019-10-06
CN201910946658.4 2019-10-06

Publications (1)

Publication Number Publication Date
WO2020083181A1 true WO2020083181A1 (fr) 2020-04-30

Family

ID=70331257

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/112182 WO2020083181A1 (fr) 2018-10-22 2019-10-21 Circuit et dispositif d'extinction d'arc à courant alternatif, et système de commutation

Country Status (2)

Country Link
CN (1) CN112753084B (fr)
WO (1) WO2020083181A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7924535B2 (en) * 2008-07-11 2011-04-12 Goodwell Electric Corp. Electronic arc extinguishing device
CN102074394A (zh) * 2010-11-18 2011-05-25 Asco电力技术公司 灭弧开关及其切换方法
CN204242871U (zh) * 2014-03-07 2015-04-01 广州市金矢电子有限公司 电容耦合式灭弧电路及装置
CN105610301A (zh) * 2015-02-27 2016-05-25 广州市金矢电子有限公司 晶闸管触发装置
CN106300376A (zh) * 2015-07-29 2017-01-04 广州市金矢电子有限公司 无涌流投切装置及其控制方法
CN206432170U (zh) * 2016-01-24 2017-08-22 广州市金矢电子有限公司 灭弧功率器件驱动装置及灭弧装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2275367B (en) * 1993-02-22 1997-06-25 Yang Tai Her D.C. Cut-off switch extinguishing arc circuit
CN104392859B (zh) * 2014-03-07 2017-04-05 广州市金矢电子有限公司 电子灭弧装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7924535B2 (en) * 2008-07-11 2011-04-12 Goodwell Electric Corp. Electronic arc extinguishing device
CN102074394A (zh) * 2010-11-18 2011-05-25 Asco电力技术公司 灭弧开关及其切换方法
CN204242871U (zh) * 2014-03-07 2015-04-01 广州市金矢电子有限公司 电容耦合式灭弧电路及装置
CN105610301A (zh) * 2015-02-27 2016-05-25 广州市金矢电子有限公司 晶闸管触发装置
CN106300376A (zh) * 2015-07-29 2017-01-04 广州市金矢电子有限公司 无涌流投切装置及其控制方法
CN206432170U (zh) * 2016-01-24 2017-08-22 广州市金矢电子有限公司 灭弧功率器件驱动装置及灭弧装置

Also Published As

Publication number Publication date
CN112753084A (zh) 2021-05-04
CN112753084B (zh) 2023-06-16

Similar Documents

Publication Publication Date Title
CN109003851B (zh) 直流灭弧电路及装置
CN108962647B (zh) 直流灭弧装置
CN104392860A (zh) 电容耦合式灭弧电路及装置
WO2015149579A1 (fr) Appareil d'extinction d'arc électronique de type à surveillance du courant
CN108766830B (zh) 一种耦合式高压直流断路器
CN102222893A (zh) 一种基于载流隔离器的快速故障电流限制器
CN105428118A (zh) 灭弧装置及无弧开关
CN201860115U (zh) 交流电容器投切开关电路
CN102420431A (zh) 低压相控投切电容器开关
CN202839447U (zh) 一种智能涡流触动高速开关
CN108493954B (zh) 一种并联电容器微涌流辅助合闸***
WO2020083181A1 (fr) Circuit et dispositif d'extinction d'arc à courant alternatif, et système de commutation
CN202353224U (zh) 低压相控投切电容器开关
CN105742122A (zh) 智能开关及其应用***
AU2019341286B2 (en) Arc-extinguishing circuit and apparatus
CN102064549B (zh) 交流电容器投切方法及投切开关电路
WO2020083179A1 (fr) Circuit et appareil de suppression d'arc ainsi que système de commutation
WO2020233151A1 (fr) Circuit et dispositif d'extinction d'arc
CN201774257U (zh) 智能电子复合开关
CN112243555B (zh) 灭弧电路及装置
WO2021151281A1 (fr) Circuit d'économie d'énergie et dispositif de démarrage
WO2019029550A1 (fr) Procédé et appareil d'extinction d'arc
CN211377592U (zh) 一种并联电容器微涌流辅助合闸***
CN115428108A (zh) 灭弧电路

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19874852

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19874852

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 01.09.2021)

122 Ep: pct application non-entry in european phase

Ref document number: 19874852

Country of ref document: EP

Kind code of ref document: A1