DE180716C - - Google Patents
Info
- Publication number
- DE180716C DE180716C DE1904180716D DE180716DA DE180716C DE 180716 C DE180716 C DE 180716C DE 1904180716 D DE1904180716 D DE 1904180716D DE 180716D A DE180716D A DE 180716DA DE 180716 C DE180716 C DE 180716C
- Authority
- DE
- Germany
- Prior art keywords
- circuit
- series
- turns
- excitation
- working
- 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 - Lifetime
Links
- 230000005284 excitation Effects 0.000 claims description 6
- 238000004804 winding Methods 0.000 description 6
- 238000004870 electrical engineering Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K27/00—AC commutator motors or generators having mechanical commutator
- H02K27/04—AC commutator motors or generators having mechanical commutator having single-phase operation in series or shunt connection
- H02K27/06—AC commutator motors or generators having mechanical commutator having single-phase operation in series or shunt connection with a single or multiple short-circuited commutator, e.g. repulsion motor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Bei der Reihen -Parallelschaltung von Wechselstromkommutatormaschinen, deren Ständerwicklung Arbeitstrom führt, ergibt sich namentlich bei höheren Periodenzahlen die Schwierigkeit, daß bei der Reihenschaltung die maximal auftretende Stromstärke und damit auch das Höchstdrehmoment zu gering ist, während der Übergang von Reihen- zur Parallelschaltung einen zu starkenIn the series-parallel connection of AC commutator machines, their Stator winding conducts working current, results in particular with higher number of periods the difficulty that the maximum current occurring in the series connection and thus the maximum torque is too low during the transition from Series connection to parallel connection is too strong
ίο Stoß ergibt. Dies kommt namentlich dann vor, wenn die Kurzschlußstromstärke der Motoren eine zu geringe ist. Um diese für die Serienschaltung zu vergrößern, ist eine Verringerung der Windungszahl der Ständerwicklung für die Serienschaltung notwendig. Dies kann dadurch erfolgen, daß man die Ständerwicklung, wie in Patent 178866 beschrieben ist, in mehreren Teilen, z. B. in zwei Teilen mit den Windungszahlen W1, W2 ausführt.ίο shock results. This occurs especially when the short-circuit current of the motors is too low. In order to increase this for the series connection, it is necessary to reduce the number of turns of the stator winding for the series connection. This can be done by having the stator winding, as described in patent 178866, in several parts, e.g. B. in two parts with the number of turns W 1 , W 2 .
Für die Serienschaltung wird von jedem Motor dann nur ein Teil der gesamten Windungen, z. B1W1, verwendet, während für die Parallelschaltung die gesamte Windungszahl verwendet wird, wie Fig. 1 und 2 für zwei Motoren nach Art des in der Elektrotechnischen Zeitschrift 1904, Seite 79 (Fig. 54) dargestellten zeigt.For the series connection, only part of the total turns of each motor, e.g. B 1 W 1 , while the entire number of turns is used for the parallel connection, as shown in FIGS. 1 and 2 for two motors of the type shown in the electrical engineering journal 1904, page 79 (FIG. 54).
Die einzelnen Wicklungsteile können dabei, wie in Patent 178866 beschrieben ist, alle Polfelder umfassen oder nur einzelne.The individual winding parts can, as described in patent 178866, all Pole fields include or only individual ones.
Für die Reihenschaltung kann man als erste Stufe ebenfalls alle (W1 + W2) Windungen verwenden und erst dann auf die geringere Windungszahl W1 übergehen. Dies geschieht im allgemeinen durch Abschalten der W2 Windungen.For the series connection, you can also use all (W 1 + W 2 ) turns as the first stage and only then switch to the lower number of turns W 1 . This is generally done by switching off the W 2 turns.
Verwendet man jedoch Läufer mit Reihenwicklungen und Wicklungsteilen. W1 und W2, die getrennte Polfelder umfassen, so hat man einfach die W2 Windungen kurz zu schließen, ohne daß man irgend einen Stromkreis öffnen muß.However, if one uses rotor with series windings and winding parts. W 1 and W 2 , which comprise separate pole fields, you simply have to short-circuit the W 2 turns without having to open any circuit.
Alle notwendigen Schaltungen, auch direkte Kurzschlüsse von Wicklungsteilen, können ohne Unterbrechung des Arbeitstromkreises vorgenommen werden, wenn die Erregung wie im dargestellten Falle von einem Reihentransformator T abgenommen und der Erregerkreis vor der Umschaltung geöffnet wird. Der Primärkreis dieses Transformators wirkt dann nämlich als Drosselspule. Es können daher, ohne daß die Stromstärke in irgend einem Teile in unzuverlässiger Weise steigen würde, erst die zu schließenden Verbindungen geschlossen, dann die zu öffnenden geöffnet werden. Hierauf wird der Erregerkreis wieder geschlossen.All necessary circuits, including direct short circuits of winding parts, can be carried out without interrupting the working circuit if the excitation is removed from a series transformer T, as in the case shown, and the excitation circuit is opened before switching. The primary circuit of this transformer then acts as a choke coil. Therefore, the connections to be closed can first be closed, and then the connections to be opened opened, without the current intensity increasing in any part in an unreliable manner. The excitation circuit is then closed again.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT31100D AT31100B (en) | 1904-07-22 | 1907-02-13 | Switching device for controlling several AC collector motors by means of series-parallel connection. |
Publications (1)
Publication Number | Publication Date |
---|---|
DE180716C true DE180716C (en) |
Family
ID=444955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1904180716D Expired - Lifetime DE180716C (en) | 1904-07-22 | 1904-07-22 |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE180716C (en) |
-
1904
- 1904-07-22 DE DE1904180716D patent/DE180716C/de not_active Expired - Lifetime
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