DE197122C - - Google Patents
Info
- Publication number
- DE197122C DE197122C DENDAT197122D DE197122DA DE197122C DE 197122 C DE197122 C DE 197122C DE NDAT197122 D DENDAT197122 D DE NDAT197122D DE 197122D A DE197122D A DE 197122DA DE 197122 C DE197122 C DE 197122C
- Authority
- DE
- Germany
- Prior art keywords
- phase
- choke coil
- main
- starting
- armature
- 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.)
- Active
Links
- 230000006698 induction Effects 0.000 claims 1
- 230000010363 phase shift Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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)
- Motor And Converter Starters (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Die bisher gebräuchlichen Anlaufvorrichtungen für Wechselstrom-Einphasenmotoren beruhen größtenteils auf dem Gedanken, die zum Anlauf nötige Hilfsphase — Anlaufphase — durch Schalter von Hand oder automatisch auszuschalten, sobald die normale Tourenzahl erreicht ist. Diese Vorrichtungen haben einige Nachteile, welche durch den weiter unten beschriebenen Anlaßapparat vermieden werden.The previously used starting devices for AC single-phase motors are largely based on the idea of the auxiliary phase necessary for start-up - start-up phase - by switch manually or automatically turn off as soon as the normal Number of tours is reached. These devices have some disadvantages which are caused by the starting apparatus described below can be avoided.
Die erwähnten Nachteile sind:
I. Die schlechte Raumausnutzung der Statornuten für die Zeitperiode des dauernden
Betriebes.The disadvantages mentioned are:
I. The poor use of space in the stator slots for the period of continuous operation.
2. Die durch Ausschaltfunken beschädigten Kontaktstellen des Anlaßapparates; und2. The contact points of the starting device damaged by switch-off sparks; and
3. kann bei Motoren, deren Anlaßvorrichtungen von Hand bedient werden, der Fall eintreten, daß nach Wiedereinsetzen einer durchgebrannten Hauptsicherung bei Stellung des Schalters auf Dauerbetrieb die Wicklung der Hauptphase verbrennt. Dieser Fall kommt häufig bei elektrisch betriebenen Ventilatoren, deren Bedienung keine sorgfältige ist, vor.3. May be the case with engines whose starting devices are operated by hand occur that after reinsertion of a blown main fuse at position the switch on continuous operation burns the winding of the main phase. This case is coming often occurs with electrically operated fans that are not operated carefully.
Das Wesen der im nachfolgenden beschriebenen Erfindung ist aus den beigegebenen Figuren klar ersichtlich.The essence of the invention described below is evident from the enclosed Figures clearly visible.
In dem Stromkreis der zur Hauptphase in Fig. ι parallel geschalteten Anlaufphase A liegt eine Drosselspule D, deren Anker E durch die Veränderungen des Stromes der Hauptphase derart beeinflußt wird, daß er beim Anlassen des Motors den magnetischen Kreis der Drosselspule kurzschließt. Hierdurch entsteht eine größere Phasenverschiebung zwischen Haupt- und Anlaufphase, und der Anlauf des Motors erfolgt.In the circuit of the ι connected in parallel to the main phase in Fig. Startup phase A is a choke coil D, the armature E is affected by the changes of the current of the main phase such that it short-circuits the magnetic circuit of the choke coil when starting the engine. This results in a greater phase shift between the main and start-up phases, and the motor starts up.
Nach erfolgtem Anlauf sinkt die Stromstärke der Hauptphase auf ihre normale Größe, und die mittels Schrauben F regulierbaren Federn G heben den Anker E ab, wodurch die. gegenseitige Phasenverschiebung der in geeigneter Weise gewickelten beiden Phasen gering wird und beide zusammen wie eine verstärkte Hauptphase arbeiten.After the start-up, the amperage in the main phase drops to its normal size, and the springs G, which can be regulated by means of screws F , lift the armature E off, causing the. mutual phase shift of the suitably wound two phases becomes small and both work together like a reinforced main phase.
Fig. ι und 3 zeigen ein Ausführungsbeispiel des Anlaufapparates, bei welchem die Drosselspule feststehend und die Hauptstromhilfsspule auf dem beweglichen Anker angeordnet, während in Fig. 4 der Anker mit der Hauptstromspule feststehend und die Drosselspule beweglich gedacht ist.Fig. Ι and 3 show an embodiment of the starting apparatus in which the Fixed choke coil and the main current auxiliary coil arranged on the movable armature, while in Fig. 4 the armature with the main current coil is stationary and the choke coil is intended to be movable.
Aus dem Diagramm (Fig. 2) sind die Phasenverschiebungen der Phasen bei Anlauf und Betrieb ersichtlich. ■From the diagram (Fig. 2) are the phase shifts of the phases at startup and Operation visible. ■
Es bedeuten:It means:
Wh = Widerstand
ω Lh = Induktanz Wh = resistance
ω Lh = inductance
Wh = Impedanz Wh = impedance
Wd1 = Widerstand
w Ld = Induktanz Wd 1 = resistance
w Ld = inductance
Wa = Widerstand
cn La = Induktanz
= Impedanz Wa = resistance
cn La = inductance
= Impedance
der Hauptphase,the main phase,
der Drosselspule,the choke coil,
der Anlauf phase mit Drosselspule bei Betrieb,the start-up phase with choke coil during operation,
D = Impedanz der Anlaufphase inkl. Drosselspule beim Anlauf. D = impedance of the start-up phase including the choke coil during start-up.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE197122C true DE197122C (en) |
Family
ID=460039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT197122D Active DE197122C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE197122C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE756800C (en) * | 1938-04-02 | 1953-09-21 | Lorenz C Ag | Adjustable throttle for alternating current |
| DE1638623B1 (en) * | 1967-11-28 | 1970-08-27 | Siemens Ag | Single-phase squirrel cage motor for oil burner |
-
0
- DE DENDAT197122D patent/DE197122C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE756800C (en) * | 1938-04-02 | 1953-09-21 | Lorenz C Ag | Adjustable throttle for alternating current |
| DE1638623B1 (en) * | 1967-11-28 | 1970-08-27 | Siemens Ag | Single-phase squirrel cage motor for oil burner |
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