EP0911851B1 - Vorrichtung zur Steuerung eines Schutzschalters - Google Patents

Vorrichtung zur Steuerung eines Schutzschalters Download PDF

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Publication number
EP0911851B1
EP0911851B1 EP98402622A EP98402622A EP0911851B1 EP 0911851 B1 EP0911851 B1 EP 0911851B1 EP 98402622 A EP98402622 A EP 98402622A EP 98402622 A EP98402622 A EP 98402622A EP 0911851 B1 EP0911851 B1 EP 0911851B1
Authority
EP
European Patent Office
Prior art keywords
coil
control
trip
bridge
control circuit
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.)
Expired - Lifetime
Application number
EP98402622A
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English (en)
French (fr)
Other versions
EP0911851A1 (de
Inventor
Gilles Baurand
Jean-Christophe Cuny
Alain Gousset
Philippe Guibert
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.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
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Filing date
Publication date
Application filed by Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP0911851A1 publication Critical patent/EP0911851A1/de
Application granted granted Critical
Publication of EP0911851B1 publication Critical patent/EP0911851B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
    • H01H89/06—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device
    • 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
    • H01H47/043—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 making use of an energy accumulator
    • 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
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/226—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil for bistable relays

Definitions

  • the present invention relates to a control device for an apparatus for electromechanical contactor-circuit breaker type with separable power contacts, comprising an electromagnet provided with a control coil for voluntary closing and opening of contacts, a coil electromagnet for opening the contacts in the event of an electrical fault and an energy source for the coils.
  • an electromechanical contactor device requires a substantial current consumption when its control electromagnet must close the contacts; on the other hand, current consumption should be minimized when the contacts remain in the closed state.
  • control coil and trip coil as simple as possible an electromechanical contactor circuit breaker of the aforementioned type.
  • the document GB2183400 describes a device for control according to the preamble of claim 1.
  • the object of the invention is to minimize the consumption of a device control for electromechanical contactor-circuit breaker device, while simplifying the construction of this device.
  • the electromagnet of voluntary control is of the bistable type and the tripping electromagnet is of the monostable type;
  • a bridge of switches switches in H is associated with the control coil and a trip switch is arranged in series with the coil trigger;
  • the power source of the control coil upon closing is an external voltage source, while the energy source of the control coil and the opening release coil is constituted by a capacity mounted in parallel to the coils.
  • a control circuit solicits on the one hand the switches bridge switches for direct or reverse flow of current switch in the control coil, and on the other hand the switch trip, according to the current measured by sensors respectively associated with the control coil and the trip coil.
  • control circuit sequentially controls the switches switches and the trip switch, so ensure priority discharge of capacity in the event of a fault trip coil.
  • a capacity normal opening is mounted in parallel to the control coil and to its bridge of switches and an opening capacity on fault is mounted parallel to the trip coil; the latter is connected by a share in the positive pole of the bridge and the normal opening capacity via a first diode and secondly to the positive pole of the opening capacity on fault via a second diode, the diodes being mounted in opposition with the common point of their cathodes connected to the trigger coil.
  • the current sensors are advantageously connected resistors to the switch switch deck and the trip switch so as to require only one input from the control circuit.
  • FIG. 1 is a diagram of the control device according to the invention.
  • Figure 2 shows an alternative embodiment of the device.
  • Figure 3 shows a detail of a variant.
  • the device of FIG. 1 is intended to control a contactor-circuit breaker device electromechanical with separable power contacts.
  • the device includes a bistable type E1 electromagnet provided with a coil L1 and a movable armature not shown, the maintenance of which in two extreme positions stable is ensured by permanent magnets; the device includes in addition, to ensure rapid opening of the contacts in the event of a fault electrical on at least one of the power lines controlled by the contacts, a monostable tripping electromagnet E2 which is shown the coil L2 and which cooperates with a trigger mechanism not shown. Switching of the electromagnet E1 to one or other of its states stable is due to the passage of current through the coil L1 in one or the other meaning.
  • the control device 10 is supplied from a continuous or alternating external electric power source rectified by voltage V by two conductors 1,2 of potential high and low respectively via an on-off switch I 0 with maintained control; there is provided on the top conductor 1 a non-return diode D 0 and, optionally (see FIG. 2), a member 3 for voltage adaptation and consumption limitation; the coils L1, L2, as well as a switching capacity C1, are arranged in parallel between the conductors 1,2.
  • the member 3 makes it possible to avoid current peaks and to ensure a minimum charging time for the capacity.
  • the device comprises a bridge 11 of H-shaped electronic switches associated with the coil L1. It further comprises a control circuit 12 which is supplied from of the voltage V and which controls on the one hand the switches T1-T4 of the bridge 11, on the other hand a switch T5 placed in series with the coil L2.
  • the switches T1-T4 are for example transistors placed in series with the coil L1 so that it is traversed by the current coming from the voltage source via the conductors 1,2 in one direction when the transistors T1, T4 are on and transistors T3, T2 blocked and in the other sense when T1, T4 are blocked and T3, T2 passersby.
  • Each switch T1-T4 is associated with a respective recovery diode D1-D4 and with the switch T5 is associated with a recovery diode D5.
  • Bridge 11 can be integrated into circuit 12.
  • a current sensor 13 It is intended to measure the current flowing through the coil L1 of the electromagnet bistable a current sensor 13.
  • This sensor can consist of a judiciously placed resistance; so the negative pole of the switches bottom of the bridge 11 is for example connected to a terminal of a resistor R1, thus only at one input 12c of the control circuit 12, while the other terminal of resistor R1 is connected to the negative pole of the supply voltage and thereby to the anodes of the diodes D2, D4.
  • a current sensor 14 In series with the release coil L2 is arranged a current sensor 14; this sensor can likewise be a resistance R2 for measuring the current in the trip coil, this resistor being connected to an input of the control circuit 12.
  • the control circuit 12 is connected by a connection 12a to the midpoint a voltage divider R3, R4 arranged between the conductors 1,2 to take immediately take into account the presence of voltage above a certain threshold or the voltage drop below a certain threshold and is powered by a connection 12b thanks to a capacitor C2 located between the conductors 1.2 and connected to conductor 1 via a diode D7.
  • Circuit 12 is connected by an input 12c to the current sensor 13, by an input 12d to the current sensor 14 and by outputs 12e, 12f at the control inputs transistors T1-T4 and respectively of transistor T5.
  • a connection additional 12g connected to the positive pole of bridge 11 or of capacity C1 allows to detect the charge thereof.
  • the control circuit can be possibly able to test the load slope of capacity C1 to determine if it is operational.
  • the negative pole of the measurement resistor R1 is connected on the one hand to the trip switch T5, on the other hand to the negative conductor 2 by the resistance of measure R2; in this way, the connection with the input 12d of the control circuit 12 can be deleted and it is enough to request a single input 12c of the circuit control to detect the current in the two coils.
  • the device described operates in the following manner.
  • the capacitor C1 is charged from the external source A through a limiting resistor or other current limiting member specific to member 3 and it is the same for C2; the control circuit 12 is activated at time t 1 when it finds that the potential between A1 and A2 is greater than a determined initial threshold V1 and that C1 is charged.
  • the control circuit then closes T1 and T4, then performs a controlled series of openings and closings of T1, to circulate the desired energy in a direct direction in the coil L1 by means of current pulses; when T1 is closed, the current flows through T1, L1, T4 and R1; when T1 is open, the current flows through L1, T4, R1, D2.
  • the coil L1 does not need holding current, it is only necessary to ensure simple compensation for losses and the continuation of operation of the control circuit; if organ 3 is provided, it determines a limitation of the level of the supply current.
  • the on-off switch l 0 is opened at time t 3 ; the control circuit 12 detects on its connection 12a the drop in the supply voltage below a threshold V3, while continuing to be supplied by the capacitor C2. Circuit 12 opens switches T1 and T4 and closes switches T2 and T3 continuously or modulated. The current from the capacitor C1 thus flows in the opposite direction in the coil L1, whose armature switches, and this results in the opening of the power contacts.
  • the value of the capacitance C1 is such that it discharges faster than C2 so that the control circuit remains operational until the contacts are opened.
  • circuit 12 blocks switches T2 and T3 at time t 4 .
  • the control circuit 12 When an electrical fault such as an overcurrent is noted by a current sensor associated with the power circuit, the control circuit 12 receives on its input 12c a corresponding signal; consequently, it leaves the switches T1-T4 at rest and turns on the transistor T5 so that the current of the capacitor C1 crosses the coil L2 which actuates the triggering mechanism. Then the circuit 12 turns on the transistors T2, T3 to circulate in the coil L1 a current capable of putting the control electromagnet in a state confirming the opening of the contacts; in this phase, the transistor T5 can be blocked to control the discharge level of the capacitor C1. The same tripping sequence can be initiated in response to a lack of current in the coil L1 following a closing of the switch I 0 .
  • the voltage V is applied in a part to the bridge in H 11 and to the capacity C1 via the diode D6 and on the other hand to a additional capacity C'1 via a diode D'6.
  • the load of capacities C1 and C'1 is therefore carried out through the resistance of the member 3 and respectively the diode D6 and diode D'6.
  • the positive terminals of capacitors C1, C'1 are connected to the upper terminal of the L2 trip coil via two diodes in opposition D8, D9 whose common point of the cathodes is designated by B1.
  • the low potential point of the trigger branch L2, T5, R2 is designated by B2.
  • the control circuit 12 is arranged between B1 and B2. This device has the advantage of making it possible to remedy the risks of malfunction in the event of failure of one or the other capacity.
  • the control circuit 12 detects the absence of current in the coil L1 and the resistor R1, and consequently makes T5 passing ; the capacitor C'1 is discharged via the diode D9 in the tripping coil L2 to open the contacts. If the capacity C'1 is open and a fault occurs in the power circuit, for example a short circuit, the capacitor C1 replaces C'1 via the diode D8 to supply the coil L2 and open the contacts. If the capacitor C'1 short-circuits during operation of the device, the diodes D8, D9 mounted in opposition isolate the short-circuited capacity of capacity C1 which can therefore supply the coil L2 with the necessary energy as soon as T5 is closed. It should be noted that the control circuit 12 connected to point B1 sees the largest voltages available across C1 and C'1.

Landscapes

  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Emergency Protection Circuit Devices (AREA)

Claims (6)

  1. Betätigungsvorrichtung (10) für einen elektromagnetischen Überlastschalter mit trennbaren Leistungskontakten, die einerseits einen Elektromagneten (E1) umfasst, der zum willkürlichen Schließen und Öffnen der Kontakte mit einer Steuerspule (L1) ausgerüstet ist, und die andererseits einen Elektromagneten (E2) umfasst, der zum Öffnen der Kontakte im Falle eines Fehlers mit einer Auslösespule (L2) ausgerüstet ist, sowie eine Energiequelle für die Spulen, wobei der Elektromagnet (E1) zur willkürlichen Steuerung bistabil ist und der Elektromagnet (E2) zur Auslösung monostabil ist, dadurch gekennzeichnet, dass eine Brücke (11) mit Schaltunterbrechern der Steuerspule (L1) zugeordnet ist und dass ein Auslöseschalter (T5) in Serie mit der Auslösespule (L2) angeordnet ist, dass die Energiequelle der Steuerspule (L1) bei der Schließung eine externe Spannungsquelle (V) ist, während die Energiequelle der Steuerspule (L1) und der Auslösespule (L2) bei der Öffnung durch eine parallel zu den Spulen (L1, L2) geschaltete Kapazität (C1; C1, C'1) gebildet wird.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass ein Steuerkreis (12) einerseits die Schaltunterbrecher (T1-T4) von der Brücke beansprucht, um einen Kommutierungsstrom in der Steuerspule (L1) strömen zu lassen, und dies in der einen oder in der anderen Richtung, und dass ebendieser Steuerkreis andererseits den Auslöseschalter (T5) beansprucht, und dies in Abhängigkeit vom Strom, der von Sensoren (13, 14) gemessen wird, wobei die Sensoren jeweils der Steuerspule (L1) und der Auslösespule (L2) zugeordnet sind, und dadurch gekennzeichnet, dass der Steuerkreis (12) sequentiell die Schaltunterbrecher (T1-T4) und den Auslöseschalter (T5) steuert, so dass im Falle eines Fehlers eine vorrangige Entladung der Kapazität (C1) in der Auslösespule (L2) gesichert wird.
  3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass eine Kapazität mit normaler Öffnung (C1) parallel zur Steuerspule (L1) und zu ihrer Brücke (11) mit Schaltern geschaltet ist, dass eine Kapazität mit fehlerbedingter Öffnung (C'1) parallel zur Auslösespule (L2) geschaltet ist, wobei ebendiese Auslösespule einerseits an den positiven Pol von der Brücke und von der Kapazität mit normaler Öffnung über eine erste Diode (D8) angeschlossen ist und andererseits an den positiven Pol von der Kapazität mit fehlerbedingter Öffnung über eine zweite Diode (D9) angeschlossen ist, wobei die Dioden mit ihrem gemeinsamen an die Auslösespule (L2) angeschlossenen Kathodenpunkt (B1) gegen geschaltet sind.
  4. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Stromsensoren (13, 14) in einer Widerstandsbrücke (R1, R2) angeordnet sind, die einerseits an die Brücke (11) mit den Schaltunterbrechern und an den Auslöseschalter (T5) angeschlossen ist, und andererseits an einen einzigen Eingang (12c) vom Steuerkreis (12) angeschlossen ist.
  5. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Steuerkreis (12) fähig ist, die Schaltunterbrecher (T1-T4) durch modulierte Impulse zu steuern.
  6. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Steuerkreis (12) einen Verbrauchsminderer (3) aufweist.
EP98402622A 1997-10-24 1998-10-21 Vorrichtung zur Steuerung eines Schutzschalters Expired - Lifetime EP0911851B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9713478A FR2770336B1 (fr) 1997-10-24 1997-10-24 Dispositif de commande pour appareil contacteur-disjoncteur
FR9713478 1997-10-24

Publications (2)

Publication Number Publication Date
EP0911851A1 EP0911851A1 (de) 1999-04-28
EP0911851B1 true EP0911851B1 (de) 2004-03-17

Family

ID=9512718

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98402622A Expired - Lifetime EP0911851B1 (de) 1997-10-24 1998-10-21 Vorrichtung zur Steuerung eines Schutzschalters

Country Status (8)

Country Link
US (1) US5959826A (de)
EP (1) EP0911851B1 (de)
JP (1) JPH11234893A (de)
CA (1) CA2250348A1 (de)
DE (1) DE69822397T2 (de)
ES (1) ES2215283T3 (de)
FR (1) FR2770336B1 (de)
TW (1) TW417128B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101425429B (zh) * 2007-10-31 2010-12-22 吉林永大电气开关有限公司 脉冲励磁电路

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Publication number Priority date Publication date Assignee Title
FR2786919B1 (fr) * 1998-12-07 2001-01-12 Schneider Electric Ind Sa Dispositif de commande d'un electro-aimant d'ouverture ou de fermeture d'un disjoncteur, avec commande locale et telecommande
FR2786916B1 (fr) * 1998-12-07 2001-01-12 Schneider Electric Ind Sa Dispositif de commande d'un electro-aimant avec entree de commande locale
TW594889B (en) * 2003-05-02 2004-06-21 Yu-Nung Shen Wafer level package method and chip packaged by this method
US20060001497A1 (en) * 2004-07-01 2006-01-05 Minteer Timothy M Magnetic actuator trip and close circuit and related methods
CN102722128B (zh) * 2012-05-31 2015-07-08 南京深科博业电气股份有限公司 一种继电保护装置开关量跳闸控制方法
US9343216B2 (en) * 2013-09-02 2016-05-17 Glen A. Robertson Energy efficient bi-stable permanent magnet actuation system
FR3013331B1 (fr) * 2013-11-15 2016-10-28 Zodiac Aero Electric Systeme optique d'eclairage pour aeronef
EP3029697B1 (de) 2014-12-05 2018-10-24 ABB Schweiz AG Mittelspannungsschaltvorrichtung vom elektromagnetischen Typ mit verbesserter Leistungstreiberschaltung
EP3185272A1 (de) * 2015-12-22 2017-06-28 ABB Schweiz AG Installationsgerät mit einer anordnung zur ansteuerung eines bistabilen relais
CN106707903B (zh) * 2017-03-16 2023-05-16 扬州新概念电气有限公司 一种高压断路器的新型永磁机构控制器
FR3065089B1 (fr) * 2017-04-11 2019-06-28 Schneider Electric Industries Sas Procede de commande d'un appareil de coupure de courant electrique, actionneur electromagnetique comprenant un circuit de mise en oeuvre de ce procede et appareil electrique de coupure comprenant un tel actionneur
FR3069698B1 (fr) * 2017-07-26 2019-08-16 Schneider Electric Industries Sas Appareil commandable de coupure d'un courant electrique et ensemble electrique comprenant cet appareil

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US3549955A (en) * 1969-08-19 1970-12-22 T O Paine Drive circuit for minimizing power consumption in inductive load
US4025821A (en) * 1976-03-10 1977-05-24 Westinghouse Electric Corporation Circuit breaker with improved trip means having a high rating shunt trip
FR2498807A1 (fr) * 1981-01-23 1982-07-30 Socapex Relais monostable a faible consommation
FR2564232B1 (fr) * 1984-05-09 1986-10-17 Option Circuit de commande d'un solenoide bistable
GB2183400B (en) * 1985-11-25 1989-11-01 Matsushita Electric Works Ltd A timer controlled multipole circuit breaker
GB8713791D0 (en) * 1987-06-12 1987-07-15 Bicc Plc Electric circuit breaking apparatus
US5657194A (en) * 1995-07-28 1997-08-12 Allen-Bradley Company, Inc. Circuit and method for automatically resetting a solid state relay

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101425429B (zh) * 2007-10-31 2010-12-22 吉林永大电气开关有限公司 脉冲励磁电路

Also Published As

Publication number Publication date
ES2215283T3 (es) 2004-10-01
FR2770336B1 (fr) 1999-12-03
FR2770336A1 (fr) 1999-04-30
CA2250348A1 (fr) 1999-04-24
EP0911851A1 (de) 1999-04-28
TW417128B (en) 2001-01-01
US5959826A (en) 1999-09-28
DE69822397D1 (de) 2004-04-22
DE69822397T2 (de) 2004-08-19
JPH11234893A (ja) 1999-08-27

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