EP1503395A2 - Electrical system for controlling contactors working in parallel - Google Patents

Electrical system for controlling contactors working in parallel Download PDF

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Publication number
EP1503395A2
EP1503395A2 EP04016168A EP04016168A EP1503395A2 EP 1503395 A2 EP1503395 A2 EP 1503395A2 EP 04016168 A EP04016168 A EP 04016168A EP 04016168 A EP04016168 A EP 04016168A EP 1503395 A2 EP1503395 A2 EP 1503395A2
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EP
European Patent Office
Prior art keywords
contactors
control inputs
parallel
current
contactor
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.)
Granted
Application number
EP04016168A
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German (de)
French (fr)
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EP1503395A3 (en
EP1503395B1 (en
Inventor
Gerd Schmitz
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.)
Eaton Industries GmbH
Original Assignee
Moeller GmbH
Kloeckner Moeller GmbH
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Publication of EP1503395A2 publication Critical patent/EP1503395A2/en
Publication of EP1503395A3 publication Critical patent/EP1503395A3/en
Application granted granted Critical
Publication of EP1503395B1 publication Critical patent/EP1503395B1/en
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Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/541—Auxiliary contact devices
    • 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
    • H01H9/40—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc

Definitions

  • the invention relates to an electrical arrangement for driving operated in parallel Sagittarius.
  • Contactors or electromagnetic switching devices are operated in parallel, by a high rated current to several designed for a lower rated current To distribute Sagittarius.
  • parallel operation it must be ensured that all individual Switch contactor properly on and off.
  • a symmetrical Power distribution to the contactors and a symmetrization of their switching dynamics sought and above all to avoid thermal overload of a the contactor and the associated risk of fire necessarily the same switching position the shooter demanded.
  • U1 is an electronic drive control for a contactor drive known by the application of a DC or AC signal on high-current control inputs A1 and A2, the drive coil of the contactor drive is applied with a pulse width modulated DC voltage.
  • the high current Control inputs take a relatively high to cover the drive power Input power on.
  • the drive control is still low current, i. low-power control inputs A10 and A11 provided opposite to the high-current control inputs record a much lower input current.
  • the low-voltage control inputs can be via internal or external resistors be connected to the high current control inputs. Then kick when applying a control signal to the high-current control inputs to the open low current control inputs a potential difference.
  • the low-voltage control inputs must be directly or over a resistor having a maximum value dependent on the magnitude of the control signal may not be connected. Otherwise, the contactor coil will, despite one not excited at the high-current control inputs pending control signal or de-energized with previous excitement.
  • the invention has for its object to exclude with little additional effort that of several parallel operated contactors only a few in the switched State are.
  • the object is achieved by the features of the independent claim solved during the dependent claims advantageous developments of Invention are to be taken.
  • the arrangement according to the invention is characterized a self-contained compact structure, one opposite the individual Protect small additional material and manufacturing costs and the absence external additional components.
  • the two low-voltage control inputs of the only one belonging to the shooter Drive control are by a series circuit the individual contactors bypassed associated thermal switches.
  • the drive control for tightening the magnetic drives of all contactors and thus for closing causes all main power contacts. Disabling the drive control and Thus, the shutdown of all contactors is done in the usual way by removing the Control signal at the high-current control inputs.
  • the thermoswitches are with internal busbars of the contactors thermally connected.
  • Fig. 1 shows a three-pole single contactor 1 with an electronic drive control AS for the magnetic drive K1 and operated by this main power contacts HA1.
  • the drive control AS contains an essential part of a bathund Control part LS.
  • the details of the power and control LS can the in DE 299 09 901 U1 described in detail electronic drive control are removed, so that in the following only the essential for the invention Features and properties are set forth.
  • To activate the magnetic drive K1 is a DC or AC signal to high current control inputs A1 and A2.
  • Low-level control inputs A10, A11 are over relative High-impedance coupling resistors RK with the high-current control inputs A1, A2 connected in series with the coupling resistor connected to the control input A11 RK still an anti-parallel circuit of a light emitting diode LED and a Rectifier diode DVO is arranged.
  • the LEDs LED and an associated Fototransistor TVO are part of an opto-coupler.
  • the low-voltage control inputs A10, A11 are connected externally.
  • A11 By removing the control signal the high-current control inputs A1, A2 or by opening the connection between the low-level control inputs A10, A11 deactivate the power and Control part LS the magnetic drive K1, so that the main power contacts HA1 open.
  • A11 may be a control signal at the high-current control inputs A1, A2 not to activate the magnetic drive Lead K1.
  • the drive coils of the magnetic drives K1, K2 form a parallel arrangement.
  • the Low-level control inputs A10, A11 are connected in series by two Thermal switch TS1, TS2 connected.
  • the thermal switch TS1 is equipped with an internal Busbar S13 of the first contactor 1 and the thermal switch with an internal contactor Power rail S21 of the second contactor 2 thermally coupled.
  • the thermal switch TS1 or TS2 opens when the detected at the busbar S13 and S21 temperature has exceeded a preset limit temperature.
  • Fig. 3 shows an expedient spatial embodiment of the parallel operated contactor combination.
  • the contactors 1 and 2 are arranged side by side laterally, wherein in each case two adjacent main current paths via external connection bridges AB conductive connected to each other.
  • first contactor 1 is the drive control Integrated AS, the input side with terminals for the high-current Control inputs A1, A2 connected on the right side.
  • the drive control AS is the output side led to the first additional terminals E11, E12 and inside the contactor 1 with the coil terminals of the first magnetic drive K1 connected.
  • the low-current control inputs A10 and A11 are each with one terminal side of the thermal switch TS1 or TS2 connected, the other Connection sides are interconnected.
  • the thermal switches TS1, TS2 are here with those internal busbars of the contactors 1, 2 thermally coupled, the the abutting sidewalls of the shooters 1, 2 are adjacent.
  • the coil connections of the second magnetic drive K2 are internal to second auxiliary terminals E21, E22 led on the left side of the second contactor 2, which is external to the adjacent first additional terminals E11, E12 are connected.
  • the present invention is not limited to the embodiment described above limited.
  • the magnetic coils of the magnetic drives K1, K2 not necessarily be connected in parallel, but can also be connected in series.
  • the drive control LS must be provided in one of the contactors. All Contactors are each equipped with a thermal switch, with all thermal switches serial are connected. The thermal switches can from the outset in the individual shooter be integrated.

Abstract

In energizing, one contactor (1) contains electronic energizing control (AS) with two high current inputs (A1,2) for pulsewidth modulated DC energizing of magnetic drives (K1,2) of all contactors (1,2), in specified, resistance containing connection. Low current control inputs (A10,11) are bridged by thermo-switches (TS1,2), breaking on attaining preset limit temperature,each allocated to one contactor and thermally coupled to inner current rails (S13,21), leading to main contacts (HA1,2) of each contactor.

Description

Die Erfindung betrifft eine elektrische Anordnung zum Ansteuern parallel betriebener Schütze. Schütze bzw. elektromagnetische Schaltgeräte werden parallel betrieben, um einen hohen Nennstrom auf mehrere für einen niedrigeren Nennstrom ausgelegte Schütze zu verteilen. Beim Parallelbetrieb muss gewährleistet sein, dass alle einzelnen Schütze ordnungsgemäß ein- und abschalten. Insbesondere wird eine symmetrische Stromverteilung auf die Schütze sowie eine Symmetrierung deren Schaltdynamik angestrebt und vor allem zur Vermeidung einer thermischen Überlastung eines der Schütze und der damit verbundenen Brandgefahr die unbedingt gleiche Schaltstellung der Schütze gefordert.The invention relates to an electrical arrangement for driving operated in parallel Sagittarius. Contactors or electromagnetic switching devices are operated in parallel, by a high rated current to several designed for a lower rated current To distribute Sagittarius. In parallel operation, it must be ensured that all individual Switch contactor properly on and off. In particular, a symmetrical Power distribution to the contactors and a symmetrization of their switching dynamics sought and above all to avoid thermal overload of a the contactor and the associated risk of fire necessarily the same switching position the shooter demanded.

Für die Gleichschaltung ist bisher eine aufwendige mechanische und elektrische Verriegelung der Schütze erforderlich, um ein thermisches Ungleichgewicht zwischen den Schützen bzw. eine thermische Überlastung eines einzelnen Schützes zu vermeiden. Eine zwischen den Schützen abweichende Schaltstellung kann beispielsweise durch einen Leitungsbruch, einen mechanischen Defekt oder eine kurzzeitige Spannungsabsenkung hervorgerufen werden. Im letztgenannten Falle könnte aus Toleranzgründen nur einer der elektromagnetischen Antriebe der Schütze abfallen und die Hauptstromkontakte des zugehörigen Schützes öffnen. Ein solcher Zustand ist auf alle Fälle zu vermeiden.For the Gleichschaltung is previously a complex mechanical and electrical locking The shooter needed to avoid a thermal imbalance between the Protect or avoid a thermal overload of a single contactor. A deviating between the shooter switching position, for example, by a line break, a mechanical defect or a short-term voltage drop be caused. In the latter case, for tolerance reasons only one of the electromagnetic drives of the contactors fall off and the main power contacts of the associated contactor. Such a condition is definitely to avoid.

Derzeit werden für einen solchen Parallelbetrieb die Schütze über externe Zeitrelais und über Koppelschütze verriegelt, was einen erheblichen zusätzlichen Material- und Verdrahtungsaufwand erfordert.Currently, for such a parallel operation, the contactors are using external timing relays and locked via coupling contactors, resulting in a considerable additional material and Wiring effort required.

Nach DE 35 28 948 A1 ist eine mechanische Verriegelungsvorrichtung bekannt, die das gleichzeitige Einschalten zweier unmittelbar nebeneinander angeordneter Schütze verhindert. Diese Verriegelungsvorrichtung lässt sich nicht auf den eingangs genannten Parallelbetrieb mehrerer Schütze übertragen.According to DE 35 28 948 A1 discloses a mechanical locking device is known, the the simultaneous switching on of two directly juxtaposed Sagittarius prevented. This locking device can not be on the beginning transferred parallel operation of multiple contactors.

Aus der DE 299 09 901 U1 ist eine elektronische Antriebssteuerung für einen Schützantrieb bekannt, durch die bei Anlegen eines Gleich- oder Wechselspannungssignals an hochstromige Steuereingänge A1 und A2 die Antriebsspule des Schützantriebes mit einer pulsbreitenmodulierten Gleichspannung beaufschlagt wird. Die hochstromigen Steuereingänge nehmen zur Abdeckung der Antriebsleistung einen relativ hohen Eingangsstrom auf. Die Antriebssteuerung ist weiterhin mit niederstromigen, d.h. leistungsarmen Steuereingängen A10 und A11 versehen, die gegenüber den hochstromigen Steuereingängen einen wesentlich geringeren Eingangsstrom aufnehmen. Die niederstromigen Steuereingänge können über interne oder externe Widerstände mit den hochstromigen Steuereingängen verbunden werden. Dann tritt beim Anliegen eines Steuersignals an den hochstromigen Steuereingängen an den offenen niederstromigen Steuereingängen ein Potenzialunterschied auf. Um den Antrieb anzusteuern, müssen die niederstromigen Steuereingänge direkt oder über einen Widerstand, der einen von der Höhe des Steuersignals abhängigen Höchstwert nicht übersteigen darf, verbunden sein. Anderenfalls wird die Schützspule trotz eines an den hochstromigen Steuereingängen anstehenden Steuersignals nicht erregt bzw. bei bisheriger Erregung entregt.From DE 299 09 901 U1 is an electronic drive control for a contactor drive known by the application of a DC or AC signal on high-current control inputs A1 and A2, the drive coil of the contactor drive is applied with a pulse width modulated DC voltage. The high current Control inputs take a relatively high to cover the drive power Input power on. The drive control is still low current, i. low-power control inputs A10 and A11 provided opposite to the high-current control inputs record a much lower input current. The low-voltage control inputs can be via internal or external resistors be connected to the high current control inputs. Then kick when applying a control signal to the high-current control inputs to the open low current control inputs a potential difference. To the drive To control, the low-voltage control inputs must be directly or over a resistor having a maximum value dependent on the magnitude of the control signal may not be connected. Otherwise, the contactor coil will, despite one not excited at the high-current control inputs pending control signal or de-energized with previous excitement.

Der Erfindung liegt die Aufgabe zugrunde, mit geringem Zusatzaufwand auszuschließen, dass von mehreren parallel betriebenen Schützen nur einzelne sich im eingeschalteten Zustand befinden.The invention has for its object to exclude with little additional effort that of several parallel operated contactors only a few in the switched State are.

Die Aufgabe wird erfindungsgemäß durch die Merkmale des unabhängigen Anspruches gelöst, während den abhängigen Ansprüchen vorteilhafte Weiterbildungen der Erfindung zu entnehmen sind. Die erfindungsgemäße Anordnung zeichnet sich durch einen in sich geschlossenen kompakten Aufbau, einen gegenüber den einzelnen Schützen geringen zusätzlichen Material- und Herstellungsaufwand sowie das Fehlen externer Zusatzkomponenten aus.The object is achieved by the features of the independent claim solved during the dependent claims advantageous developments of Invention are to be taken. The arrangement according to the invention is characterized a self-contained compact structure, one opposite the individual Protect small additional material and manufacturing costs and the absence external additional components.

Die beiden niederstromigen Steuereingänge der einzigen, einem der Schütze angehörenden Antriebssteuerung werden von einer Reihenschaltung den einzelnen Schützen zugeordneten Thermoschaltern überbrückt. Beim Anlegen eines Steuersignals an die hochstromigen Steuereingänge fließt über die geschlossenen Thermoschalter ein Strom ausreichender Höhe in die niederstromigen Steuereingänge, der die Antriebssteuerung zum Anziehen der Magnetantriebe aller Schütze und damit das Schließen aller Hauptstromkontakte veranlasst. Das Deaktivieren der Antriebssteuerung und damit das Abschalten aller Schütze erfolgt in üblicher Weise durch Wegnahme des Steuersignals an den hochstromigen Steuereingänge. Die Thermoschalter sind mit internen Stromschienen der Schütze thermisch verbunden. Sollte nach Anlegen des Steuersignals der Magnetantrieb eines einzelnen Schützes nicht anziehen oder nach dem Anziehen aus irgend einem Grunde wieder abfallen, dann fließt infolge seiner offenen Hauptstromkontakte der Hauptlaststrom über die geschlossenen Kontakte der übrigen Schütze. Deren Stromschienen erwärmen sich in der Folge übermäßig, wodurch einer der zugeordneten Thermoschalter öffnet. Infolge der stromlosen niederstromigen Steuereingänge wird die Antriebssteuerung deaktiviert, werden alle Magnetantriebe entregt und nehmen die Hauptstromkontakte aller Schütze den geöffneten Zustand ein. Dadurch kann es nicht zu dauerhaft unterschiedlichen Schaltzuständen zwischen allen Hauptstromkontakten bzw. zur thermischen Überlastung eines einzelnen Schützes kommen.The two low-voltage control inputs of the only one belonging to the shooter Drive control are by a series circuit the individual contactors bypassed associated thermal switches. When applying a control signal to the high-current control inputs flow through the closed thermal switches Power of sufficient height in the low-level control inputs, the drive control for tightening the magnetic drives of all contactors and thus for closing causes all main power contacts. Disabling the drive control and Thus, the shutdown of all contactors is done in the usual way by removing the Control signal at the high-current control inputs. The thermoswitches are with internal busbars of the contactors thermally connected. Should after creating the Do not tighten the control signal of the magnetic drive of a single contactor or after fall off for any reason, then flows due to it open main power contacts the main load current through the closed contacts of the remaining shooter. Their busbars heat up in the episode excessively, causing one of the associated thermal switches opens. Due to the electroless low-current Control inputs, the drive control is disabled, all solenoid drives de-energized and take the main power contacts of all contactors open Condition. As a result, it can not permanently different switching states between all main power contacts or for the thermal overload of a single Sagittarius come.

Durch die pulsbreitenmodulierte Gleichspannungserregung der Antriebsspulen ist die von der Schaltstellung abhängige Gegeninduktivität der einzelnen Magnetantriebe ohne erhebliche Bedeutung, sodass die Antriebsspulen der Schütze mit Vorteil elektrisch parallel oder in Reihe anzuordnen sind. Es ist lediglich darauf zu achten, dass die einzige Antriebssteuerung ausreichend Leistung liefert, um das gleichzeitige Anziehen aller Magnetantriebe zu gewährleisten.Due to the pulse width modulated DC excitation of the drive coils is the dependent on the switching position mutual inductance of the individual magnetic drives without significant importance, so that the drive coils of the contactors with advantage electrically be arranged parallel or in series. It is only necessary to make sure that the only drive control provides sufficient power to simultaneous tightening to ensure all magnetic drives.

Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus dem folgenden, anhand von Figuren erläuterten Ausführungsbeispiel. Es zeigen

Figur 1:
die schematische Darstellung eines ansteuernden Schützes;
Figur 2:
die schematische Darstellung parallel betriebener Schütze mit der erfindungsgemäßen Anordnung zur deren Ansteuerung;
Figur 3:
die Draufsicht auf parallel betriebene Schütze mit der teils schematisch dargestellten erfindungsgemäßen Anordnung.
Further details and advantages of the invention will become apparent from the following, explained with reference to figures embodiment. Show it
FIG. 1:
the schematic representation of a driving contactor;
FIG. 2:
the schematic representation of parallel operated contactors with the arrangement according to the invention for the control thereof;
FIG. 3:
the top view of parallel operated contactors with the arrangement of the invention partially shown schematically.

Fig. 1 zeigt ein dreipoliges Einzelschütz 1 mit einer elektronischen Antriebssteuerung AS für deren Magnetantrieb K1 und die von diesem betätigten Hauptstromkontakte HA1. Die Antriebssteuerung AS enthält als wesentlichen Bestandteil ein Leistungsund Steuerteil LS. Die Einzelheiten des Leistungs- und Steuerteils LS können der in der DE 299 09 901 U1 ausführlich beschriebenen elektronischen Antriebssteuerung entnommen werden, sodass im Folgenden nur die für die Erfindung wesentlichen Merkmale und Eigenschaften dargelegt werden. Zum Aktivieren des Magnetantriebes K1 ist ein Gleich- oder Wechselspannungssignals an hochstromige Steuereingänge A1 und A2 anzulegen. Niederstromige Steuereingänge A10, A11 sind über relativ hochohmige Koppelwiderstände RK mit den hochstromigen Steuereingängen A1, A2 verbunden, wobei seriell zu dem mit dem Steuereingang A11 verbundenen Koppelwiderstand RK noch eine Antiparallelschaltung aus einer Leuchtdiode LED und einer Gleichrichterdiode DVO angeordnet ist. Die Leuchtdioden LED und ein zugehöriger Fototransistor TVO sind Bestandteil eines Optokopplers. Die niederstromigen Steuereingänge A10, A11 sind extern miteinander verbunden. Beim Anlegen eines Steuersignals in Form einer ausreichend hohen Gleich- oder Wechselspannung an die hochstromigen Steuereingänge A1, A2 wird der Leistungsteil des Leistungs- und Steuerteils LS mit Strom versorgt und durch den Stromfluss über die niederstromigen Steuereingänge A10, A10 und die Leuchtdiode LED des Optokopplers der Steuerteil des Leistungs- und Steuerteils LS in der Weise aktiviert, dass die Antriebsspule des Magnetantriebes K1 mit einer pulsbreitenmodulierten Gleichspannung beaufschlagt wir, die den Magnetantrieb K1 zuerst zum Schließen der Hauptstromkontakte HA1 aktiviert und danach im Schließzustand hält. Durch Wegnahme des Steuersignals an den hochstromigen Steuereingängen A1, A2 oder durch Öffnen der Verbindung zwischen den niederstromigen Steuereingängen A10, A11 deaktiviert das Leistungs- und Steuerteil LS den Magnetantrieb K1, sodass die Hauptstromkontakte HA1 öffnen. Bei nichtverbundenen niederstromigen Steuereingängen A10, A11 kann ein Steuersignal an den hochstromigen Steuereingängen A1, A2 nicht zum Aktivieren des Magnetantriebes K1 führen.Fig. 1 shows a three-pole single contactor 1 with an electronic drive control AS for the magnetic drive K1 and operated by this main power contacts HA1. The drive control AS contains an essential part of a Leistungsund Control part LS. The details of the power and control LS can the in DE 299 09 901 U1 described in detail electronic drive control are removed, so that in the following only the essential for the invention Features and properties are set forth. To activate the magnetic drive K1 is a DC or AC signal to high current control inputs A1 and A2. Low-level control inputs A10, A11 are over relative High-impedance coupling resistors RK with the high-current control inputs A1, A2 connected in series with the coupling resistor connected to the control input A11 RK still an anti-parallel circuit of a light emitting diode LED and a Rectifier diode DVO is arranged. The LEDs LED and an associated Fototransistor TVO are part of an opto-coupler. The low-voltage control inputs A10, A11 are connected externally. When applying a control signal in the form of a sufficiently high DC or AC voltage to the high-current control inputs A1, A2 is the power unit of the power and Control parts LS supplied with electricity and through the flow of current through the low-current Control inputs A10, A10 and the LED of the optocoupler of the control unit of the power and control LS activated in such a way that the drive coil of the Magnetic drive K1 loaded with a pulse width modulated DC voltage We, the magnetic drive K1 first to close the main power contacts HA1 activated and then stops in the closed state. By removing the control signal the high-current control inputs A1, A2 or by opening the connection between the low-level control inputs A10, A11 deactivate the power and Control part LS the magnetic drive K1, so that the main power contacts HA1 open. at unconnected low-level control inputs A10, A11 may be a control signal at the high-current control inputs A1, A2 not to activate the magnetic drive Lead K1.

Für die in Fig. 2 gezeigte Kombination aus zwei parallel betriebenen Schützen 1 und 2 mit zugehörigen Magnetantrieben K1 bzw. K2 und Hauptstromkontakten HA1 bzw. HA2 wird für das ansteuernde Schütz 1 das vorstehend mit Fig. 1 beschriebene Einzelschütz mit elektronischer Antriebssteuerung AS verwendet. Das andere Schütz 2 besitzt dagegen keine eigene Antriebsteuerung. Sein Magnetantrieb K2 wird ebenfalls von der leistungsmäßig ausreichend ausgelegten Antriebsteuerung AS des ansteuernden Schützes 2 betrieben. Bei der gezeigten Schützkombination sind zur Erhöhung der Stromtragfähigkeit jeweils zwei zum gleichen Schütz 1 bzw. 2 gehörende Hauptstrompfade einerseits und die verbleibenden Hauptstrompfade beide Schütze 1, 2 anderseits miteinander verbunden.For the combination shown in Fig. 2 of two parallel operated shooters 1 and 2 with associated magnetic drives K1 or K2 and main current contacts HA1 or HA2 becomes for the activating contactor 1 the single contactor described above with FIG used with electronic drive control AS. The other contactor 2 does not have its own drive control. His magnetic drive K2 is also from the power sufficiently designed drive control AS of the driving Contactor 2 operated. At the contactor combination shown are to increase the current carrying capacity in each case two belonging to the same contactor 1 and 2 respectively Main current paths on the one hand and the remaining main current paths both contactors 1, 2 on the other hand interconnected.

Die Antriebsspulen der Magnetantriebe K1, K2 bilden eine Parallelanordnung. Die niederstromigen Steuereingänge A10, A11 sind über eine Reihenschaltung zweier Thermoschalter TS1, TS2 verbunden. Der Thermoschalter TS1 ist mit einer internen Stromschiene S13 des ersten Schützes 1 und der Thermoschalter mit einer internen Stromschiene S21 des zweiten Schützes 2 thermisch gekoppelt. Der Thermoschalter TS1 bzw. TS2 öffnet, wenn die an der Stromschiene S13 bzw. S21 erfasste Temperatur eine voreingestellte Grenztemperatur überschritten hat.The drive coils of the magnetic drives K1, K2 form a parallel arrangement. The Low-level control inputs A10, A11 are connected in series by two Thermal switch TS1, TS2 connected. The thermal switch TS1 is equipped with an internal Busbar S13 of the first contactor 1 and the thermal switch with an internal contactor Power rail S21 of the second contactor 2 thermally coupled. The thermal switch TS1 or TS2 opens when the detected at the busbar S13 and S21 temperature has exceeded a preset limit temperature.

Beim Anlegen eines Gleich- oder Wechselspannungssteuersignals an die hochstromigen Steuereingänge A1, A2 fließt über die geschlossenen Thermoschalter TS1, TS2 und die niederstromigen Steuereingängen A10, A11 ein Strom, durch den die Antriebssteuerung AS zum Erregen der Magnetantriebe K1, K2 aktiviert wird. Sollte einer der Magnetantriebe K1 oder K2 nicht ordnungsgemäß anziehen, oder fällt einer der bis dahin angezogenen Magnetantriebe K1 oder K2 eines der beiden Schütze 1 bzw. 2 durch einen Defekt oder eine Störung ab, wird der Gesamtstrom der parallel betriebenen Kombination von dem anderen Schütz 2 bzw. 1 übernommen. Durch den erhöhten Strom erfährt die Stromschiene S21 bzw. S13 eine erhebliche Erwärmung, die zum Öffnen des Thermoschalters TS2 bzw. TS1 führt. Die Unterbrechung der Verbindung zwischen den niederstromigen Steuereingängen A10, A11 führt über die deaktivierte Antriebssteuerung AS zum Abfallen auch des anderen Magnetantriebes K2 bzw. K1, womit alle Hauptstromkontakte HA1 und HA2 geöffnet sind.When applying a DC or AC control signal to the high current Control inputs A1, A2 flows through the closed thermal switches TS1, TS2 and the low-level control inputs A10, A11 a current through which the Drive control AS for energizing the magnetic drives K1, K2 is activated. Should one of the magnetic drives K1 or K2 does not tighten properly, or falls one the previously attracted magnetic drives K1 or K2 one of the two contactors. 1 or 2 by a defect or a fault, the total current of the parallel operated combination of the other contactor 2 or 1 taken. By the increased current undergoes the busbar S21 or S13 significant heating, which leads to the opening of the thermal switch TS2 or TS1. The interruption of Connection between the low-level control inputs A10, A11 leads via the deactivated drive control AS for dropping also the other magnetic drive K2 or K1, whereby all main current contacts HA1 and HA2 are opened.

Fig. 3 zeigt eine zweckmäßige räumliche Ausführung der parallel betriebenen Schützkombination. Die Schütze 1 und 2 sind seitlich nebeneinander angeordnet, wobei jeweils zwei benachbarte Hauptstrompfade über externe Anschlussbrücken AB leitend miteinander verbunden sind. In dem rechts angeordneten, ersten Schütz 1 ist die Antriebssteuerung AS integriert, die eingangsseitig mit Klemmen für die hochstromigen Steuereingänge A1, A2 an der rechten Seite verbunden ist. An der linken Seite sind Klemmen für die niederstromigen Steuereingänge A10, A11 vorgesehen. Die Antriebssteuerung AS ist ausgangsseitig zu ersten Zusatzklemmen E11, E12 geführt und im Inneren des Schützes 1 mit den Spulenanschlüssen des ersten Magnetantriebes K1 verbunden. Die niederstromigen Steuereingänge A10 und A11 sind jeweils mit einer Anschlussseite der Thermoschalter TS1 bzw. TS2 verbunden, deren andere Anschlussseiten untereinander verbunden sind. Die Thermoschalter TS1, TS2 sind hier mit denjenigen internen Stromschienen der Schütze 1, 2 thermisch gekoppelt, die den anstoßenden Seitenwänden der Schütze 1, 2 benachbart sind. Die Spulenanschlüsse des zweiten Magnetantriebes K2 sind intern zu zweiten Zusatzklemmen E21, E22 auf der linken Seite des zweiten Schützes 2 geführt, die extern mit den benachbarten ersten Zusatzklemmen E11, E12 verbunden sind. Fig. 3 shows an expedient spatial embodiment of the parallel operated contactor combination. The contactors 1 and 2 are arranged side by side laterally, wherein in each case two adjacent main current paths via external connection bridges AB conductive connected to each other. In the rightmost, first contactor 1 is the drive control Integrated AS, the input side with terminals for the high-current Control inputs A1, A2 connected on the right side. On the left side are Terminals for the low-level control inputs A10, A11 provided. The drive control AS is the output side led to the first additional terminals E11, E12 and inside the contactor 1 with the coil terminals of the first magnetic drive K1 connected. The low-current control inputs A10 and A11 are each with one terminal side of the thermal switch TS1 or TS2 connected, the other Connection sides are interconnected. The thermal switches TS1, TS2 are here with those internal busbars of the contactors 1, 2 thermally coupled, the the abutting sidewalls of the shooters 1, 2 are adjacent. The coil connections of the second magnetic drive K2 are internal to second auxiliary terminals E21, E22 led on the left side of the second contactor 2, which is external to the adjacent first additional terminals E11, E12 are connected.

Die vorliegende Erfindung ist nicht auf die vorstehend beschriebene Ausführungsform beschränkt. So müssen die Magnetspulen der Magnetantriebe K1, K2 nicht unbedingt parallel geschaltet sein, sondern können auch seriell miteinander verbunden sein.The present invention is not limited to the embodiment described above limited. Thus, the magnetic coils of the magnetic drives K1, K2 not necessarily be connected in parallel, but can also be connected in series.

Offensichtlich können mit der Erfindung auch mehr als zwei Schütze parallel betrieben werden. Hierzu ist in einem der Schütze die Antriebssteuerung LS vorzusehen. Alle Schütze sind mit je einem Thermoschalter versehen, wobei alle Thermoschalter seriell verbunden sind. Die Thermoschalter können von vornherein in den einzelnen Schützen integriert sein.Obviously, more than two contactors can be operated in parallel with the invention become. For this purpose, the drive control LS must be provided in one of the contactors. All Contactors are each equipped with a thermal switch, with all thermal switches serial are connected. The thermal switches can from the outset in the individual shooter be integrated.

Claims (3)

Elektrische Anordnung zum Ansteuern parallel betriebener Schütze bei jeweils mindestens zwei elektrisch parallel verbundenen, den Hauptstrompfaden zuzuordnenden Hauptstromkontakten, mit folgenden Merkmalen: eines der Schütze (1) weist eine mit zwei hochstromigen Steuereingängen (A1; A2) versehene elektronische Antriebssteuerung (AS) zur pulsbreitenmodulierten Gleichspannungserregung der Magnetantriebe (K1; K2) aller Schütze (1; 2) auf, die Antriebssteuerung (AS) ist weiterhin mit zwei niederstromigen Steuereingängen (A10; A11) ausgestattet, die mit den hochstromigen Steuereingängen (A1; A2) widerstandsbehaftet verbunden und zur Erregung der Magnetantriebe (K1; K2) bei Anlegen eines Steuersignals an die hochstromigen Steuereingänge (A1; A2) durch eine einen Höchstwiderstand nicht überschreitende Verbindung zu überbrücken sind, die niederstromigen Steuereingänge (A10; A11) werden durch seriell verbundene, nach Erreichen einer voreingestellten Grenztemperatur öffnende Thermoschalter (TS1; TS2) überbrückt, die jeweils einem der Schütze (1; 2) zugeordnet und mit wenigstens einer der zu den Hauptstromkontakten (HA1; HA2) führenden internen Stromschienen (S13; S21) des jeweiligen Schützes (1; 2) thermisch gekoppelt sind. Electrical arrangement for controlling contactors operated in parallel at at least two main current contacts to be assigned to the main current paths, connected in parallel with each other, having the following features: one of the contactors (1) has an electronic drive control (AS) provided with two high-current control inputs (A1; A2) for pulse-width-modulated DC excitation of the magnetic drives (K1; K2) of all contactors (1; 2), the drive control (AS) is further equipped with two low-current control inputs (A10; A11) connected resistively to the high-current control inputs (A1; A2) and for energizing the magnetic drives (K1; K2) upon application of a control signal to the high-current control inputs (A1 A2) are to be bridged by a connection not exceeding a maximum resistance, the low-level control inputs (A10, A11) are bridged by serially connected thermal switches (TS1, TS2) opening after reaching a preset limit temperature, each associated with one of the contactors (1, 2) and connected to at least one of the main contacts (HA1, HA2 ) leading internal busbars (S13; S21) of the respective contactor (1; 2) are thermally coupled. Elektrische Anordnung nach Anspruch 1, durch gekennzeichnet, dass die Antriebsspulen der Magnetantriebe (K1; K2) parallel angeordnet sind.Electrical arrangement according to claim 1, characterized in that the drive coils the magnetic drives (K1, K2) are arranged in parallel. Elektrische Anordnung nach Anspruch 1, durch gekennzeichnet, dass die Antriebsspulen der Magnetantriebe (K1; K2) seriell angeordnet sind.Electrical arrangement according to claim 1, characterized in that the drive coils the magnetic drives (K1, K2) are arranged serially.
EP20040016168 2003-07-30 2004-07-09 Electrical system for controlling contactors working in parallel Expired - Fee Related EP1503395B1 (en)

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DE20311712U 2003-07-30
DE20311712U DE20311712U1 (en) 2003-07-30 2003-07-30 Electrical arrangement for controlling contactors operated in parallel

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008015439B3 (en) * 2008-03-22 2009-04-02 Moeller Gmbh Flow path's partial alternating currents symmetrizing arrangement for e.g. circuit breaker, has secondary windings assigned to flow paths, where half of windings are oriented opposite to another half of windings with respect to paths
DE102008015437B3 (en) * 2008-03-22 2009-07-30 Moeller Gmbh Symmetrization arrangement for parallel current paths

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2138275A (en) * 1937-06-07 1938-11-29 Allen Bradley Co Apparatus for effecting simultaneous functioning of a plurality of alternating current electromagnets
US5324989A (en) * 1992-12-17 1994-06-28 Thornton Roger D Power controller module providing user selectable overload protection
WO1996041358A1 (en) * 1995-06-07 1996-12-19 Transportation Safety Devices, Inc. Power disconnect switch
DE29909901U1 (en) * 1999-06-08 1999-09-30 Moeller Gmbh Electronic drive control for a contactor drive

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2138275A (en) * 1937-06-07 1938-11-29 Allen Bradley Co Apparatus for effecting simultaneous functioning of a plurality of alternating current electromagnets
US5324989A (en) * 1992-12-17 1994-06-28 Thornton Roger D Power controller module providing user selectable overload protection
WO1996041358A1 (en) * 1995-06-07 1996-12-19 Transportation Safety Devices, Inc. Power disconnect switch
DE29909901U1 (en) * 1999-06-08 1999-09-30 Moeller Gmbh Electronic drive control for a contactor drive

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008015439B3 (en) * 2008-03-22 2009-04-02 Moeller Gmbh Flow path's partial alternating currents symmetrizing arrangement for e.g. circuit breaker, has secondary windings assigned to flow paths, where half of windings are oriented opposite to another half of windings with respect to paths
DE102008015437B3 (en) * 2008-03-22 2009-07-30 Moeller Gmbh Symmetrization arrangement for parallel current paths
WO2009118119A1 (en) * 2008-03-22 2009-10-01 Moeller Gmbh Balancing system for even-numbered current paths

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DE502004011724D1 (en) 2010-11-18
DK1503395T3 (en) 2011-01-31
EP1503395A3 (en) 2007-03-14
DE20311712U1 (en) 2004-12-09
EP1503395B1 (en) 2010-10-06
ES2353210T3 (en) 2011-02-28

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