DE744700C - Circuit for three-phase motors braked with direct current - Google Patents

Circuit for three-phase motors braked with direct current

Info

Publication number
DE744700C
DE744700C DEW107356D DEW0107356D DE744700C DE 744700 C DE744700 C DE 744700C DE W107356 D DEW107356 D DE W107356D DE W0107356 D DEW0107356 D DE W0107356D DE 744700 C DE744700 C DE 744700C
Authority
DE
Germany
Prior art keywords
circuit
direct current
braked
phase motors
relay
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
Application number
DEW107356D
Other languages
German (de)
Inventor
Dipl-Ing Arthur Schmidt
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.)
Fritz Werner AG
Original Assignee
Fritz Werner AG
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 Fritz Werner AG filed Critical Fritz Werner AG
Priority to DEW107356D priority Critical patent/DE744700C/en
Application granted granted Critical
Publication of DE744700C publication Critical patent/DE744700C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
    • H02P25/18—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays

Description

Schaltung für mit Gleichstromgebremste Drehstrommotoren Das Hauptpatent 698 305 betrifft eine Schaltung für mit Gleichstrom gebremste Drehstrommotoren, insbesondere zum Antrieb von Werkzeugmaschinen. Das Wesen dieser Schaltung besteht darin, daß durch die Strom-oder Spannungsschwankungen, die- im Augenblick des Motorstillstandes im Gleichstromkreis oder zwischen den an die Gleichstromquelleangeschlossenen Klemmen und der nichtangeschlossenen Klemme der Motorwicklung entstehen. ein Relais gesteuert wird, um einen zweiten, z. B. durch einen elektrischen Schalter gesteuerten Vorgang einzuleiten oder zu beenden. Es ist auch möglich, die Spannungsänderung in nur einer Phase der Motorwicklung zur Steuerung des Relais zu benutzen, so daß bei Sternschaltung des Motors das Relais an den Sternpunkt und an eine freie Motorklemme angeschlossen wird. Es kann aber auch einDifferentialrelais benutztwerden, dessen Spulen einerseits je an eine der mit den Polen der Gleichstromquelle verbundenen Klemmen, andererseits an die nichtangeschlossene Klemme angelegt sind.Circuit for three-phase motors braked with direct current The main patent 698 305 relates to a circuit for three-phase motors braked with direct current, in particular for driving machine tools. The essence of this circuit is that the current or voltage fluctuations that occur at the moment of the motor standstill in the direct current circuit or between the terminals connected to the direct current source and the non-connected terminal of the motor winding. a relay is controlled to a second, z. B. to initiate or terminate a process controlled by an electrical switch. It is also possible to use the voltage change in just one phase of the motor winding to control the relay, so that when the motor is star-connected, the relay is connected to the star point and to a free motor terminal. However, a differential relay can also be used, the coils of which are connected on the one hand to one of the terminals connected to the poles of the direct current source and on the other hand to the terminal that is not connected.

Die Zusatzerfindung bezweckt, weitere Schaltungsarten für das Relais ausfindig zu machen, so daß die Möglichkeit gegeben ist, sich im Einzelfall die geeignete Schaltung aus einer noch größeren Anzahl auszuwählen.The purpose of the additional invention is to create further types of circuit for the relay to find out, so that there is the opportunity to find out the select suitable circuit from an even larger number.

Die Erfindung ist dadurch gekennzeichnet. daß das Relais in dein Diagonalzweig der aus zwei Widerständen und der Wicklung des Drehstroinmotors oder Teilen derselben gebildeten Brücke liegt.The invention is characterized in this. that the relay in your diagonal branch that of two resistors and the winding of the rotary current motor or parts of the same formed bridge lies.

Auf der Zeichnung sind Ausführungsbeispiele der erfindungsgemäßen Schaltung dargestellt. In Abb. i ist der Drehstrommotor durch seine drei Klemmen L", l". [F im Stern geschaltet dargestellt. Das Relais Red liegt in dein Diagonalzweig der aus zwei Widerstanden Wid gebildeten Brücke. In Abb. 2 ist der Drehstrommotor im Dreieck geschaltet, das Relais ist wiederum in den Diagonalzweig der aus zwei Widerständen und den Motorwicklungen gebildeten Brücke gelegt.In the drawing are exemplary embodiments of the invention Circuit shown. In Fig. I the three-phase motor is through its three terminals L ", l". [F shown connected in a star. The relay Red is in your diagonal branch the bridge formed from two resistors wid. In Fig. 2 is the three-phase motor connected in a triangle, the relay is in turn in the diagonal branch of the two Resistors and the motor windings formed bridge.

Claims (1)

PATENTANSPRUCH: Schaltung für mit Gleichstrom gebremste Drehstrommotoren, insbesondere zum Antrieb von Werkzeugmaschinen, nach Patent 698 30,5, dadurch gekennzeichnet, daß das durch die Strom- oder Spannungsschwankungen gesteuerte Relais in dein Diagonalzweig der aus zwei Widerständen und der Wicklung des Drehstrommotors oder Teilen derselben gebildeten Brücke liegt. Zur Abgrenzung des Anmeldungsgegenstandes vom Stand der Technik sind im Erteilungsverfahren keine Druckschriften in Betracht gezogen worden.PATENT CLAIM: Circuit for three-phase motors braked with direct current, in particular for driving machine tools, according to Patent 698 30.5, characterized in that the relay controlled by the current or voltage fluctuations is in the diagonal branch of two resistors and the winding of the three-phase motor or parts thereof formed bridge lies. In order to differentiate the subject of the application from the state of the art, no publications were taken into account in the granting procedure.
DEW107356D 1940-06-13 1940-06-13 Circuit for three-phase motors braked with direct current Expired DE744700C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW107356D DE744700C (en) 1940-06-13 1940-06-13 Circuit for three-phase motors braked with direct current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW107356D DE744700C (en) 1940-06-13 1940-06-13 Circuit for three-phase motors braked with direct current

Publications (1)

Publication Number Publication Date
DE744700C true DE744700C (en) 1944-11-16

Family

ID=7616749

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW107356D Expired DE744700C (en) 1940-06-13 1940-06-13 Circuit for three-phase motors braked with direct current

Country Status (1)

Country Link
DE (1) DE744700C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1295067B (en) * 1965-12-14 1969-05-14 Licentia Gmbh AC machine with speed-dependent DC braking

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1295067B (en) * 1965-12-14 1969-05-14 Licentia Gmbh AC machine with speed-dependent DC braking

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