EP2842151B1 - Aktuatorsschaltkreis für lastschalter - Google Patents

Aktuatorsschaltkreis für lastschalter Download PDF

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Publication number
EP2842151B1
EP2842151B1 EP13717515.4A EP13717515A EP2842151B1 EP 2842151 B1 EP2842151 B1 EP 2842151B1 EP 13717515 A EP13717515 A EP 13717515A EP 2842151 B1 EP2842151 B1 EP 2842151B1
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EP
European Patent Office
Prior art keywords
coil
circuit
transistor
circuit breaker
branch
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.)
Active
Application number
EP13717515.4A
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English (en)
French (fr)
Other versions
EP2842151A1 (de
Inventor
Peter Von Allmen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GE Vernova GmbH
Original Assignee
General Electric Technology GmbH
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Publication date
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Publication of EP2842151A1 publication Critical patent/EP2842151A1/de
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Publication of EP2842151B1 publication Critical patent/EP2842151B1/de
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/59—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the AC cycle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/002—Monitoring or fail-safe circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
    • H01H47/04—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current
    • H01H47/06—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current by changing number of serially-connected turns or windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1081—Modifications for selective or back-up protection; Correlation between feeder and branch circuit breaker

Definitions

  • the present invention relates to an actuating device for controlling an electrical disconnection device, such as a medium voltage or high voltage circuit breaker.
  • a circuit breaker for example in a gas-insulated electrical substation called GIS according to the English "Gas Insulated Substation", is equipped with a control. This control provides the energy and torque needed to move the circuit breaker contacts.
  • the controls can be hydraulic, pneumatic or spring type.
  • the present invention is more particularly described for a spring drive, but also applies to other types of controls.
  • a spring-loaded control mechanically acts to open or close the contacts of a circuit breaker.
  • a conventional actuation mechanism includes a coil that drives a plunger when current flows through the coil. The plunger is connected to a movable pawl, so that the spool controls the mechanical operation of the spring drive by moving the plunger and hence the pawl.
  • a coil capable of being traversed by a current capable of displacing the plunger and the pawl typically comprises 1103 turns wound around a magnetic core. This means that the inductance of the coil is high, as is its time constant since it is proportional to the inductance. Thus, the action time with known solutions currently reaches 5.5 ms.
  • the document US 5,889,645 relates to a control mechanism of a gas valve in an oven.
  • This mechanism has two coils for actuating the gas valve.
  • the coils are driven by a single input signal emitted by a microprocessor and amplified by a transistor.
  • a medium voltage circuit breaker or high voltage is in use for a period that can typically be 25 to 40 years. This time is very long for an actuator circuit and in particular for components such as transistors that can have a shorter life. A solution in which a component may thus fail the circuit breaker is not satisfactory.
  • a first input terminal and a first transistor feed a first coil, while a second input terminal and a second transistor feeds the two coils.
  • the document JP 2009302358 discloses a circuit in which a coil is fed via a transistor and a capacitor in a first phase. In a second phase, the transistor is blocked and the current flowing through the coil is limited by a resistive element in series with the coil.
  • This type of circuit can not be transposed to the control of a circuit breaker. Indeed, for a circuit-breaker, the current to be interrupted in the activation circuit must be less than 4 A (continuous) according to IEC 622271-1, ⁇ 5.4.4.5.4. This implies a minimum value of resistance for a given voltage. For example, for 110 V and 4 A, the sum of the resistances of the coil and the resistive element is at least 27.5 Ohm.
  • the dead time of the mechanism must be low, typically less than 300 ms to comply with the cycle of operation detailed in IEC 62271.100, ⁇ 4.104.
  • the intrinsic resistance of the coil must be low, typically 4 Ohm.
  • the resistance of the resistive element is at least 23.5 Ohm.
  • the energy dissipated by the resistive element would be six times greater than that dissipated by the coil, which is not desirable.
  • the coil would have a very small number of turns to have a low intrinsic resistance. A current of 4 A through this coil would not create sufficient magnetic flux to drive the moving parts into their actuated position.
  • the document US 4 222 123 A relates to a control circuit of a high speed solenoid comprising a stop coil and two parallel branches connected to the solenoid.
  • the action time of the actuator circuit is reduced and remains compatible with the speed requirements of a circuit breaker.
  • the first branch has a redundancy function. If the second branch becomes inoperative, for example because of the failure of a component, then the first branch provides the function of actuating the command. Thus, a failure of a component does not prevent the operation of the device. Since the first coil has a higher impedance than the first one, the current flowing through the first coil remains relatively small compared to the current in the second coil and can be interrupted by an auxiliary switch.
  • the switching circuit is adapted to limit the intensity of the current flowing through the second coil and to open the second branch after a predetermined time, after a potential difference is applied between the two terminals.
  • the current to be interrupted remains at a value of less than 4 A (continuous), and complies with the requirements of IEC 622271-1.
  • the switch comprises a component chosen from a a field effect transistor, an NPN junction transistor, a thyristor or a mechanical relay.
  • the first and second coils are wound around the same core.
  • induced currents are created, including a current in the first coil when the current is interrupted in the second coil, which ensures full displacement of the plunger.
  • the invention also relates to a control of a circuit breaker comprising an actuator circuit as previously presented. It may be a spring loaded control.
  • the invention also relates to a circuit breaker comprising a control provided with an actuator circuit as previously presented.
  • control and the circuit breaker have advantages similar to those previously exposed.
  • a medium or high voltage circuit breaker 20 comprises a spring control 21 which provides the energy and torque necessary for the movement of the contacts of the circuit breaker.
  • the circuit breaker 20 and the control 21 are conventional except for an actuator circuit 22 which controls the control 11.
  • the circuit breaker and the control are not described in detail here.
  • the actuator circuit is detailed below.
  • the actuator circuit comprises two parallel branches between two terminals 5 and 6 to which a potential difference can be applied to operate the actuator circuit.
  • the first branch comprises only a coil 1.
  • the coil 1 comprises 1000 turns and has an impedance of 35 Ohm.
  • This branch has a redundancy function. If the second branch becomes inoperative, for example because of the failure of a component, then the first branch provides the actuating function of the spring control. It is then a so-called degraded mode of operation.
  • the second branch has a coil 2 and other components that will be detailed later.
  • the coil 2 has 363 turns and has an impedance of 3.55 Ohm.
  • other impedance values of the coils 1 and 2 can be chosen, provided that the impedance of the coil 1 is greater than that of the coil 2.
  • the second branch provides the so-called normal operating mode.
  • the coils 1 and 2 are formed by winding around the same core.
  • the switch mainly comprises a transistor 3.
  • the transistor 3 is a field effect transistor, for example of the MOSFET type.
  • the drain of the transistor 3 is connected to the coil 2 and the source of the transistor 3 is connected to the terminal 6.
  • Other types of components can be used as a switch, in particular an NPN junction transistor, a thyristor or a mechanical relay. .
  • the transistor 3 limits the intensity of the current flowing through the coil 2 to a value that makes it possible to interrupt the current by an auxiliary switch.
  • the breaking capacity of an auxiliary switch is limited to a current of maximum intensity of 4 A.
  • a diode 4 is connected in parallel with the coil 2.
  • the anode of the diode 4 is connected to the drain of the transistor 3 and the cathode of the diode 4 is connected to the terminal 5.
  • the diode 4 limits the effects of the overvoltage appearing at the opening of the second branch by the transistor 3.
  • the transistor 3 is controlled by a control circuit, or switching, which comprises a bipolar transistor 8 whose collector is connected to the gate of the transistor 3.
  • the collector of the transistor 8 is also connected to a terminal of a resistor 12 whose other terminal is connected to the terminal 5.
  • the emitter of the transistor 8 is connected to the terminal 6.
  • the resistor 12 is for example 56 kOhms.
  • the base of the transistor 8 is connected to the anode of a Zener diode 9 whose cathode is connected on the one hand to a capacitor 10 and a resistor 11 in parallel.
  • the capacitor 10 and the resistor 11 are connected to the terminal 6.
  • the capacitor 10 has for example a capacity of 0.1 ⁇ F and the resistor 11 is 56 kOhms.
  • the cathode of the Zener diode 9 is on the other hand connected to a resistor 13, itself connected to the terminal 5.
  • the resistor 13 is for example 200 kOhms.
  • the operation of the switching circuit is as follows.
  • the transistor 3 then opens the second branch, so that the current flowing through the coil 2 is interrupted, after about 2 ms.
  • the coils 1 and 2 are preferably wound on the same core. This creates induced currents.
  • the transistor 3 interrupts the passage of the current in the coil 2, it induces a current in the coil 1.
  • This induced current can be used to maintain the magnetic field necessary to move the plunger of the mechanism. Indeed, the current in the coil 2 is interrupted after for example 2 ms. This time may be too short for the diver to reach his final position actuated. The current induced in the coil 1 then allows the diver to finish his race.
  • control circuit of transistor 3 is an RC circuit.
  • a capacitor is connected between the terminal 5 and the gate of the transistor 3
  • a resistor is connected between the terminal 6 and the gate of the transistor 3.
  • the resistance and capacitance values are chosen so that the time constant RC is equal to a determined value, for example 2 ms.
  • GIS gas-insulated electrical substation
  • other types of connection apparatus for example aeronolated, circuit breakers in oil bath, both indoors and outdoors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Emergency Protection Circuit Devices (AREA)

Claims (6)

  1. Aktuatorschaltkreis für eine Steuerung eines Lastschalters, enthaltend
    - zwei Zweige, die zwischen zwei Anschlussklemmen (5, 6) parallel geschaltet sind, wobei
    der erste Zweig nur eine erste Spule (1) enthält,
    der zweite Zweig eine zweite Spule (2) mit geringerer Impedanz das die erste enthält, die in Reihe mit einem Schalter geschaltet ist, der über einen Schaltkreis (3) gesteuert wird.
  2. Aktuatorschaltkreis nach Anspruch 1, dadurch gekennzeichnet, dass der Schaltkreis dazu ausgelegt ist, die Stromstärke des durch die zweite Spule (2) fließenden Stroms zu begrenzen und den zweiten Zweig nach einer vorbestimmten Zeitdauer zu öffnen, nachdem eine Potentialdifferenz zwischen den beiden Anschlussklemmen (5, 6) angelegt wird.
  3. Aktuatorschaltkreis nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Schalter (3) ein Bauteil, ausgewählt aus einem Feldeffekttransistor, einem NPN-Verbindungstransistor, einem Thyristor oder einem mechanischen Relais, enthält.
  4. Aktuatorschaltkreis nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die erste und die zweite Spule (1, 2) um einen selben Kern gewickelt sind.
  5. Steuerung (21) für einen Lastschalter mit einem Aktuatorschaltkreis nach einem der Ansprüche 1 bis 4.
  6. Lastschalter (20) mit einer mit einem Aktuatorschaltkreis ausgestatteten Steuerung nach Anspruch 5.
EP13717515.4A 2012-04-24 2013-04-22 Aktuatorsschaltkreis für lastschalter Active EP2842151B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1253758A FR2989824B1 (fr) 2012-04-24 2012-04-24 Circuit actionneur de commande de disjoncteur
PCT/EP2013/058243 WO2013160217A1 (fr) 2012-04-24 2013-04-22 Circuit actionneur de commande de disjoncteur

Publications (2)

Publication Number Publication Date
EP2842151A1 EP2842151A1 (de) 2015-03-04
EP2842151B1 true EP2842151B1 (de) 2016-06-08

Family

ID=48142794

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13717515.4A Active EP2842151B1 (de) 2012-04-24 2013-04-22 Aktuatorsschaltkreis für lastschalter

Country Status (11)

Country Link
US (1) US10410817B2 (de)
EP (1) EP2842151B1 (de)
KR (1) KR102068829B1 (de)
CN (1) CN104254899A (de)
ES (1) ES2590856T3 (de)
FR (1) FR2989824B1 (de)
HU (1) HUE029395T2 (de)
IN (1) IN2014MN02075A (de)
PL (1) PL2842151T3 (de)
RU (1) RU2615779C2 (de)
WO (1) WO2013160217A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2990051B1 (fr) 2012-04-25 2014-05-30 Alstom Technology Ltd Commande de type a ressort(s) d'un interrupteur a haute ou moyenne tension munie d'un dispositif d'accouplement a roue libre a cliquet
RU183087U9 (ru) * 2017-05-19 2019-07-16 общество с ограниченной ответственностью "ЗЭТО-Газовые Технологии" Механизм пружинного привода для высоковольтного коммутационного аппарата
US10971923B2 (en) * 2018-08-27 2021-04-06 Cisco Technology, Inc. Hot swap inrush current limiter circuit

Family Cites Families (19)

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Publication number Priority date Publication date Assignee Title
US3149244A (en) * 1960-11-07 1964-09-15 Bell Telephone Labor Inc Circuit for producing short rise time current pulses in inductive loads
FR2458886A2 (fr) * 1978-10-26 1981-01-02 Mayer Ferdy Relais sensible a haute stabilite de seuil
US4422123A (en) * 1982-01-28 1983-12-20 Mikuni Kogyo Co., Ltd. Circuit for driving solenoid at high speed with choke coil
DE3409513A1 (de) * 1984-03-15 1985-09-19 Hager Electro GmbH + Co, 6601 Ensheim Elektromagnetische anordnung, insbesondere in einem schaltgeraet
US5159522A (en) 1990-02-27 1992-10-27 Dana Corporation Electric clutch actuator
US5583395A (en) * 1994-10-11 1996-12-10 Lu; Chao-Cheng Fluorescent device having a fluorescent starter which precisely controls heating time and absolute synchronism of fire point
US5581192A (en) * 1994-12-06 1996-12-03 Eaton Corporation Conductive liquid compositions and electrical circuit protection devices comprising conductive liquid compositions
US5889645A (en) 1997-04-14 1999-03-30 International Controls And Measurement Corp Energy preservation and transfer mechanism
FR2786920B1 (fr) * 1998-12-07 2001-01-12 Schneider Electric Ind Sa Dispositif de commande standard d'un electro-aimant d'ouverture ou de fermeture d'un disjoncteur
TW420893B (en) * 1999-01-25 2001-02-01 Lam Sheir Chun Circuit breaker
KR100505438B1 (ko) * 2001-11-29 2005-07-29 마츠시다 덴코 가부시키가이샤 전자(電磁) 개폐 장치
DE102005004554A1 (de) 2005-01-31 2006-08-10 Dbt Gmbh Schutzbeschaltung für eigensichere Elektromagnetaktoren sowie Schutzbeschaltung für eigensichere Energieversorgungssysteme
CN101159201A (zh) * 2007-09-12 2008-04-09 长春理工大学 双线圈节能接触器
CN201130853Y (zh) * 2007-11-23 2008-10-08 华中科技大学 故障电流限制器
JP2009302358A (ja) 2008-06-16 2009-12-24 Kyowa Kagaku:Kk ソレノイド駆動装置及びソレノイドアクチュエータ
US7868484B2 (en) * 2008-08-11 2011-01-11 International Business Machines Corporation Worldwide adaptive multi-coil automatic transfer switch
CN201425922Y (zh) * 2009-05-11 2010-03-17 桐昆集团股份有限公司 继电器电路
EP2333805B1 (de) * 2009-12-11 2015-05-13 Schneider Electric Industries SAS Ferngesteuerte Unterbrechungsvorrichtung, und mit dieser Unterbrechungsvorrichtung ausgestattete Stromverteilungsvorrichtung
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Also Published As

Publication number Publication date
WO2013160217A1 (fr) 2013-10-31
US10410817B2 (en) 2019-09-10
ES2590856T3 (es) 2016-11-23
HUE029395T2 (hu) 2017-02-28
PL2842151T3 (pl) 2016-12-30
IN2014MN02075A (de) 2015-08-21
KR20150010958A (ko) 2015-01-29
FR2989824B1 (fr) 2015-08-21
CN104254899A (zh) 2014-12-31
KR102068829B1 (ko) 2020-01-22
EP2842151A1 (de) 2015-03-04
FR2989824A1 (fr) 2013-10-25
US20150103459A1 (en) 2015-04-16
RU2014146946A (ru) 2016-06-10
RU2615779C2 (ru) 2017-04-11

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