DE539838C - Device for starting AC motors - Google Patents

Device for starting AC motors

Info

Publication number
DE539838C
DE539838C DENDAT539838D DE539838DD DE539838C DE 539838 C DE539838 C DE 539838C DE NDAT539838 D DENDAT539838 D DE NDAT539838D DE 539838D D DE539838D D DE 539838DD DE 539838 C DE539838 C DE 539838C
Authority
DE
Germany
Prior art keywords
winding
frequency converter
starting
motors
rotor
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
DENDAT539838D
Other languages
German (de)
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.)
JAN FRIEDRICH TOENNIES DIPL IN
Original Assignee
JAN FRIEDRICH TOENNIES DIPL IN
Publication date
Application granted granted Critical
Publication of DE539838C publication Critical patent/DE539838C/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
    • H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
    • H02P1/26—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor
    • H02P1/30—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor by progressive increase of frequency of supply to primary circuit of motor

Description

Einrichtung zum Anlassen von Wechselstrommotoren Der im Hauptpatent beschriebene Frequenzumformer kann in allen den Fällen, in denen die zusätzliche Kommutatorwicklung mit dem Frequenzumformer eine bauliche Einheit bildet, was für den Frequenzumformer eine läufergespeiste Bauart voraussetzt, dadurch vereinfacht wenden, daß man die Kommutatorwicklung schaltet, wie die Abbildung zeigt. Die mit der Primärwicklung b des Frequenzumformers in Reihe geschaltete, auf dem Läuferumfang gleichmäßig verteilte Kommutatorwicklung a, die in sich ge= schlossen ist, ist wie die Wicklung eines Gleichstromankers an drei (für Drehstrom) Punkten angezapft, und an diese Punkte sind die Enden der drei Primärwicklungen angeschlossen, deren Anfänge vom Netz c gespeist werden. Die Sekundärwicklung d des Frequenzumformers speist bei e die anzulassende Maschine; ihre Wicklungsanfänge sind mit den Bürsten der lsommutatorwicklung verbunden. Mit dieser Schaltung ist eine wesentliche Ersparnis an Wicklungen möglich, und der Frequenzumformer wird leichter und billiger. Diese Schaltung ist auch für normale kompensierte Drehstrommotoren anwendbar, wobei die entsprechenden Vorteile erreicht werden.Device for starting AC motors in the main patent The frequency converter described can be used in all cases in which the additional Commutator winding with the frequency converter forms a structural unit, what for the frequency converter requires a rotor-fed design, thus simplified turn the commutator winding to be switched as shown in the illustration. With the primary winding b of the frequency converter connected in series on the rotor circumference evenly distributed commutator winding a, which is closed in itself, is like the winding of a DC armature tapped at three (for three-phase) points, and to these points the ends of the three primary windings are connected, their Beginning to be fed by the network c. The secondary winding d of the frequency converter at e feeds the machine to be started; their winding starts are with the brushes connected to the isommutator winding. With this circuit there is a substantial saving possible on windings, and the frequency converter becomes lighter and cheaper. These The circuit can also be used for normal compensated three-phase motors, whereby the corresponding advantages can be achieved.

Claims (1)

PATENTANSPRUCH: Einrichtung zum Anlassen vonWechselstrommotoren nach Patent S32 318, dadurch gekennzeichnet, daß dic Primärwicklung des läufergespeisten Frequenzumformers über feste Anschlußpunkte einer auf dem Läufer des Frequenzumformers angeordneten zusätzlichen, im Polygon geschalteten Kollektorw icklung verkettet ist, deren Bürsten in den aufgelösten Sternpunkt der Sekundärwicklung geschaltet sind.Claim: device for starting AC motors according to patent S32 318, characterized in that the primary winding of the rotor-fed frequency converter is linked via fixed connection points of an additional collector winding arranged on the rotor of the frequency converter and connected in the polygon, the brushes of which are connected to the neutral point of the secondary winding .
DENDAT539838D Device for starting AC motors Expired DE539838C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE539838T

Publications (1)

Publication Number Publication Date
DE539838C true DE539838C (en) 1931-12-02

Family

ID=6558717

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT539838D Expired DE539838C (en) Device for starting AC motors

Country Status (1)

Country Link
DE (1) DE539838C (en)

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