DE467238C - Arrangement on asynchronous machines, in whose secondary circuit two self-excited, mechanically coupled phase shifters connected in series or in parallel are switched on - Google Patents

Arrangement on asynchronous machines, in whose secondary circuit two self-excited, mechanically coupled phase shifters connected in series or in parallel are switched on

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Publication number
DE467238C
DE467238C DES79927D DES0079927D DE467238C DE 467238 C DE467238 C DE 467238C DE S79927 D DES79927 D DE S79927D DE S0079927 D DES0079927 D DE S0079927D DE 467238 C DE467238 C DE 467238C
Authority
DE
Germany
Prior art keywords
phase shifters
excited
switched
self
series
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
DES79927D
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
Publication date
Priority to DES79927D priority Critical patent/DE467238C/en
Application granted granted Critical
Publication of DE467238C publication Critical patent/DE467238C/en
Expired legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K17/00Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02Asynchronous induction motors
    • H02K17/34Cascade arrangement of an asynchronous motor with another dynamo-electric motor or converter
    • H02K17/38Cascade arrangement of an asynchronous motor with another dynamo-electric motor or converter with a commutator machine

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Description

Anordnung an Asynchronmaschinen, in deren Sekundärstromkreis zwei hintereinander oder parallel geschaltete eigenerregte, mechanisch miteinander gekuppelte Phasenschieber eingeschaltet sind Um den Leistungsfaktor von Asynchronmaschinen in einfachster Weise zu verbessern, verwendet man bekanntlich eigenerregte Phasenschieber, die im wesentlichen aus einem Gleichstromanker und einem stillstehenden oder mit umlaufenden, den Gleichstromanker umgebenden Eisenring für den Schluß des magnetischen Kraftfeldes bestehen. In dem gegebenenfalls vorhandenen Ständer des Phasenschiebers kann noch eine Kurzschlußwicklung zur Verbesserung der Kommutier ung und Verbesserung des Leistungsfaktors bei Leerlauf der Asynchronmaschine vorgesehen sein. Diese eigenerregten Phasenschieber haben aber den Nachteil, daß die Stärke der Phasenkompensierung nur durch die Stärke der Belastung der asynchronen. Vordermaschine bedingt ist und nicht eingestellt werden kann.Arrangement on asynchronous machines, two in their secondary circuit self-excited, mechanically coupled to one another, connected in series or in parallel Phase shifters are switched on by the power factor of asynchronous machines to improve in the simplest way, one uses, as is well known, self-excited phase shifters, which essentially consists of a DC armature and a stationary or with circumferential iron ring surrounding the DC armature for the end of the magnetic Force field exist. In the phase shifter stand, if present can still use a short-circuit winding to improve commutation and improvement of the power factor when the asynchronous machine is idling. These stimulated themselves But phase shifters have the disadvantage that the strength of the phase compensation only by the strength of the load on the asynchronous. Front machine is conditional and not can be adjusted.

Die Erfindung betrifft eine Anordnung, bei der man die Stärke der Phasenkompensierung von eigenerregten Phasenschiebern beeinflussen kann, sofern zwei Phasenschieber vorgesehen sind, die in Hintereinander- oder Parallelschaltung in den Sekundärstromkreis der asynchronen Vordermaschine eingeschaltet sind. Die Verwendung zweier Phasenschieber ist namentlich bei großen Asynchronmaschinen sehr oft erforderlich, da man sonst keine genügend gute Kommutierung erzielen kann. Erfindungsgemäß sind die beiden Phasenschieber 'erstens mechanisch miteinander gekuppelt, zweitens sind ihre Läuferwicklungen gegebenenfalls unter Verwendung von Kupplungen (induktiver oder auch kapazitiver Art) miteinander elektrisch verbufiden. Man kann nunmehr durch Verschiebung des Bürstensatzes des einen Phasenschiebers gegenüber dem Bürstensatze des anderen Phasenschiebers die Stärke der Phasenkompensierung der asynchronen Vordermaschine beeinflussen. Ebenso kann dies durch Verdrehung der Läufer der beiden Phasenschieber gegeneinander mittels einer einstellbaren Kupplung erreicht werden. Je nach Größe dieser gegenseitigen Verschiebungen fließt dann in der Verbindung zwischen den Läuferwicklungen der beiden Phasenschieber ein Ausgleichsstrom.The invention relates to an arrangement in which the strength of the Can influence phase compensation of self-excited phase shifters, provided two phase shifters are provided, which are connected in series or in parallel are switched on in the secondary circuit of the asynchronous front machine. the The use of two phase shifters is particularly important in large asynchronous machines often required, as otherwise a sufficiently good commutation cannot be achieved. According to the invention the two phase shifters are, firstly, mechanically coupled to one another, secondly If necessary, their rotor windings are using clutches (inductive or capacitive type) electrically connected to each other. You can now go through Displacement of the brush set of one phase shifter with respect to the brush set of the other phase shifter, the strength of the phase compensation of the asynchronous front machine influence. This can also be done by rotating the rotors of the two phase shifters can be achieved against each other by means of an adjustable clutch. Depending on size this mutual displacement then flows in the connection between the rotor windings the two phase shifters a compensating current.

Die Zeichnung zeigt ein Ausführungsbeispiel der Erfindung. Die Sekundärwicklung der Asynchronmaschine i ist offen geschaltet und an zwei Schleifringsätze 2 und 3 angeschlossen. Jeder der beiden Schleifringsätze steht mit einem eigenerregten Phasenschieber q. und 5 in Verbindung. Die beiden Phasenschieber sind miteinander mechanisch gekuppelt und werden von dem Asynchronmotor 6 oder von der Maschine i angetrieben. Die Läuferwicklungen der beiden Phasenschieber stehen mit Schleifringen 7 und 8 in Verbindung. Zwischen diesen Schleifringen sind Verbindungsleitungen 9 vorgesehen. Selbstverständlich könnten die Schleifringe auch an Hilfswicklungen im Läufer der Phasenschieber angeschlossen sein, die mit der Kommutatorwicklung nur induktiv gekuppelt sind; ebenso könnte in die Verbindungsleitung 9 noch ein Transformator eingeschaltet sein. Statt Schleifringe 7 und 8 vorzusehen, könnten die Läuferwicklungen der beiden Phasenschieber auch unmittelbar z. B. durch die hohle Welle miteinander verbunden sein.The drawing shows an embodiment of the invention. The secondary winding the asynchronous machine i is open and connected to two slip ring sets 2 and 3 connected. Each of the two slip ring sets has its own excited Phase shifter q. and 5 in connection. The two phase shifters are with each other mechanically coupled and are of the asynchronous motor 6 or of the machine i driven. The rotor windings of the two phase shifters have slip rings 7 and 8 in connection. There are connecting lines 9 between these slip rings intended. Of course, the slip rings could also be attached to auxiliary windings be connected in the rotor of the phase shifter with the commutator winding are only inductively coupled; could also be in the connecting line 9 another Transformer must be switched on. Instead of providing slip rings 7 and 8, could the rotor windings of the two phase shifters also directly z. B. by the hollow shaft be connected to each other.

Claims (1)

PATENTANSPRUCH: Anordnung an Asynchronmaschinen, in deren Sekundärstromkreis zwei hintereinander oder parallel geschaltete eigenerregte, mechanisch miteinander gekuppelte Phasenschieber eingeschaltet sind, dadurch gekennzeichnet, daß die Läuferwicklungen der beiden Phasenschieber unmittelbar durch Verbindungsleitungen oder mittels induktiver Kupplungen miteinander elektrisch verbunden sind.PATENT CLAIM: Arrangement on asynchronous machines, in their secondary circuit two self-excited, connected in series or in parallel, mechanically with one another coupled phase shifters are switched on, characterized in that the rotor windings of the two phase shifters directly through connecting lines or by means of inductive Couplings are electrically connected to each other.
DES79927D Arrangement on asynchronous machines, in whose secondary circuit two self-excited, mechanically coupled phase shifters connected in series or in parallel are switched on Expired DE467238C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES79927D DE467238C (en) Arrangement on asynchronous machines, in whose secondary circuit two self-excited, mechanically coupled phase shifters connected in series or in parallel are switched on

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES79927D DE467238C (en) Arrangement on asynchronous machines, in whose secondary circuit two self-excited, mechanically coupled phase shifters connected in series or in parallel are switched on

Publications (1)

Publication Number Publication Date
DE467238C true DE467238C (en) 1928-10-22

Family

ID=7508540

Family Applications (1)

Application Number Title Priority Date Filing Date
DES79927D Expired DE467238C (en) Arrangement on asynchronous machines, in whose secondary circuit two self-excited, mechanically coupled phase shifters connected in series or in parallel are switched on

Country Status (1)

Country Link
DE (1) DE467238C (en)

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