DE574092C - Induction machine, with the primary circuit of which capacitors are coupled via transformers with separate windings - Google Patents
Induction machine, with the primary circuit of which capacitors are coupled via transformers with separate windingsInfo
- Publication number
- DE574092C DE574092C DENDAT574092D DE574092DD DE574092C DE 574092 C DE574092 C DE 574092C DE NDAT574092 D DENDAT574092 D DE NDAT574092D DE 574092D D DE574092D D DE 574092DD DE 574092 C DE574092 C DE 574092C
- Authority
- DE
- Germany
- Prior art keywords
- capacitors
- induction machine
- primary circuit
- machine
- coupled via
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/30—Structural association of asynchronous induction motors with auxiliary electric devices influencing the characteristics of the motor or controlling the motor, e.g. with impedances or switches
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
Description
Für gewisse Zwecke werden Drehstrom-. Asynchronmaschinen in Reihe mit Kondensatoren geschaltet. Da Kondensatoren einen voreilenden Strom zu liefern vermögen, weleher den nacheilenden Strom des Maschinensatzes selbst zu kompensieren vermag, so hatFor certain purposes they are three-phase. Asynchronous machines in series with capacitors switched. Since capacitors are able to deliver a leading current, whichever able to compensate for the lagging current of the machine set itself, so has
■ eine derartige Anordnung in sich die Möglichkeit, sich selbst zu erregen, und zwar nicht mit derjenigen Frequenz, welche dem Betriebe■ such an arrangement in itself the possibility of arousing oneself, and indeed not with the frequency that the company
»o der Maschine entspricht, z. B. 50, sondern mit irgendeiner anderen Frequenz, welche sich aus dem Verhältnis zwischen der Kapazität und den Selbstinduktionen der- Maschine ergibt. Diese Selbsterregung tritt wie alle derartigen»O corresponds to the machine, e.g. B. 50, but with any other frequency resulting from the ratio between the capacitance and the self-induction of the machine results. This self-excitement occurs like all such
«5 Erscheinungen störend auf.«5 disturbing phenomena.
Nach der Erfindung soll diese Selbsterregung dadurch verhindert werden, daß die Kondensatoren nicht in unmittelbar leitende Verbindung mit -der Maschine gebracht wer-According to the invention, this self-excitation is to be prevented in that the Capacitors are not brought into direct contact with the machine
»o den, sondern mit ihr durch einen Transformator gekoppelt werden. In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. 1 bedeutet ein Netz, welches z. B. durch irgendeinen Transformator verkörpert sein kann, das die Induktionsmaschine 2 speist. Die S tänder wicklung 3 dieser Maschine ist mit der Kondensatorbatterie 4 in Reihe geschaltet, aber nicht unmittelbar, sondern nach der Erfindung über einen Transformator S mit zwei getrennten Wicklungen 6 und 7. Der Läufer 8 der Induktionsmaschine kann mit irgendeinem anderen Kreise 9 zusammengeschaltet sein. Es ist angenommen, daß die Welle der Maschine 2 durch einen eigenen Antrieb oder durch Antrieb von einem Maschinensatze, zu welchem die Maschine gehört, angetrieben wird.»O den, but with her through a transformer be coupled. An exemplary embodiment of the invention is shown in the drawing. 1 means a network which z. B. may be embodied by any transformer that the induction machine 2 feeds. The stand winding 3 of this machine is connected to the capacitor battery 4 in Connected in series, but not directly, but according to the invention via a transformer S with two separate windings 6 and 7. The rotor 8 of the induction machine can be interconnected with any other circuit 9. It is believed that the shaft of the machine 2 by its own drive or by drive from one Machine sets to which the machine belongs is driven.
Durch Beeinflussung des Transformators 5 kann der Kopplungsgrad zwischen den -Kondensatoren und der Ständerwicklung so eingestellt werden, daß Selbsterregung verhindert wird. Diese Beeinflussung kann z. B. durch Wahl bestimmter Sättigung oder durch Veränderung der Luftspalte im Transformatoreisen ausgeübt werden. Sie kann aber auch <5 durch dritte Wicklungen erzielt werden, die ihrerseits etwa gleichstromgespeist oder an andere Kondensatoren angeschlossen sind. Endlich kann auch noch durch Wahl geeigneter Streuungen des Transformators 4 oder andere wirkungsgleiche Mittel eine Verstimmung, die die Selbsterregung verhindert, herbeigeführt werden. Die Änderung des Kopplungsgrades kann von den Betriebszuständen der Maschine selber oder von den Betriebszuständen anderer Maschinen abhängig gemacht werden.By influencing the transformer 5, the degree of coupling between the capacitors and the stator winding can be adjusted to prevent self-excitation. This influence can, for. B. by Choice of certain saturation or by changing the air gap in the transformer iron be exercised. But it can also be achieved <5 by third windings that in turn are fed approximately DC or connected to other capacitors. Finally, by choosing suitable scattering of the transformer 4 or other means with the same effect cause a disgruntlement which prevents self-excitement will. The change in the degree of coupling can depend on the operating states of the machine itself or on the basis of the operating states be made dependent on other machines.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE574092T |
Publications (1)
Publication Number | Publication Date |
---|---|
DE574092C true DE574092C (en) | 1933-04-08 |
Family
ID=6569423
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT574092D Expired DE574092C (en) | Induction machine, with the primary circuit of which capacitors are coupled via transformers with separate windings |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE574092C (en) |
-
0
- DE DENDAT574092D patent/DE574092C/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE574092C (en) | Induction machine, with the primary circuit of which capacitors are coupled via transformers with separate windings | |
DE682206C (en) | Arrangement for braking asynchronous motors | |
DE618338C (en) | Brake circuit for three-phase asynchronous machines | |
DE621133C (en) | Control of three-phase motors that are operated at very low frequencies at times | |
DE434217C (en) | Arrangement for converting multiphase sinusoidal alternating voltages into uniform voltages or from uniform voltages into multiphase sinusoidal alternating voltages | |
DE760274C (en) | Arrangement for synchronous generators | |
AT113942B (en) | Arrangement for improving the commutation on commutator machines (especially on AC commutator machines). | |
DE492902C (en) | Arrangement to improve the commutation on commutator machines (especially on AC commutator machines) | |
DE946641C (en) | Arrangement for parallel operation of self-regulating synchronous generators | |
DE532492C (en) | Electrical membrane sound transmitter system | |
DE673601C (en) | Double-fed synchronous induction machine | |
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 | |
DE940918C (en) | Synchronous machine without slip rings | |
DE580065C (en) | Arrangement in commutator rear machines, which are switched on in the secondary circuit of asynchronous machines, in particular for the purpose of phase compensation | |
DE511824C (en) | Arrangement for the excitation of commutator machines connected to the secondary circuit of asynchronous machines | |
AT59589B (en) | AC collector motor with working voltage on the rotor and stator and with stator excitation. | |
AT133433B (en) | Commonly driven alternators. | |
DE915114C (en) | Reactance generator with capacitor excitation | |
AT103834B (en) | Method for synchronizing induction machines. | |
DE628376C (en) | Arrangement for voltage regulation of AC machines | |
DE622232C (en) | Rotating frequency and phase number converter | |
CH123310A (en) | Electric individual drive, in particular for card sets with asynchronous motors electrically coupled on the stator and rotor side. | |
DE446929C (en) | Rule set with two commutator back machines | |
DE746583C (en) | Arrangement for speed control of electrical machines | |
DE533272C (en) | Induction machine with speed-determining commutator rear machine and separate exciter converter as half of a converter for coupling two AC networks |