DE200996C - - Google Patents
Info
- Publication number
- DE200996C DE200996C DE1907200996D DE200996DA DE200996C DE 200996 C DE200996 C DE 200996C DE 1907200996 D DE1907200996 D DE 1907200996D DE 200996D A DE200996D A DE 200996DA DE 200996 C DE200996 C DE 200996C
- Authority
- DE
- Germany
- Prior art keywords
- motor
- starting
- current
- voltage
- circuit
- 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
- 230000001264 neutralization Effects 0.000 claims description 5
- 239000007858 starting material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241000189705 Dunedin group Species 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
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
- H02P1/28—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 voltage applied to primary circuit of motor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor And Converter Starters (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
- JVl 200996 -KLASSE 21 d. GRUPPE - JVl 200996 - CLASS 21 d. GROUP
Zusatz zum Patente 200995 vom 14. Juni 1907.Addendum to patent 200995 of June 14, 1907.
Patentiert im Deutschen Reiche vom 29. Dezember 1907 ab. Längste Dauer: 13. Juni 1922.Patented in the German Empire on December 29, 1907. Longest duration: June 13, 1922.
Versuche haben ergeben,, daß das in dem Hauptpatent angegebene Prinzip der Auflösung der Neutralen noch eine weitere Anwendung auf die gleiche Schaltweise zuläßt. Statt nämlich den Motor beim Anlassen mittels des Anlaßautotransformators plötzlich an ungefähr die halbe Normalspannung zu legen, kann man dieser Stellung zweckmäßig noch eine andere vorausgehen lassen, welche mit Fig. 6 des Hauptpatents identisch ist. Der. Aniaßtransformator dient also wiederum als Drosselspule, jedoch mit dem Unterschied, daß der Motor noch stillsteht.Tests have shown, that the principle of dissolution stated in the main patent the neutral still allows another application to the same switching method. Instead of suddenly starting the engine using the starting autotransformer This position can still be used to put about half the normal tension let another precede, which is identical to Fig. 6 of the main patent. Of the. Aniaßtransformator thus serves again as a choke coil, but with the difference, that the engine is still at a standstill.
Nimmt man an, daß der Leerlaufstrom des Motors ungefähr Y4, der 'Kurzschlußstrom ungefähr das Siebenfache des normalen Stromes betragen, was in der Praxis mit genügender Genauigkeit zutrifft, so ist die Wirkungsweise folgende: Die Stromstärke steigt auf etwa 7/8 des Normalwertes, die Spannung an der Drosselspule beträgt etwa 7/8, die Spannung am Motor etwa Y8 der Gesamtspannung. In der Praxis ist jedoch die Stromabnahme etwas größer, gleich demAssuming that the idling current of the motor Y 4, the 'short-circuit current be about approximately seven times the normal current, which is the case in practice with sufficient accuracy, so the operation is the following: The amperage increases to about 7/8 of the normal value, the voltage at the inductor is about 7/8 the voltage at the motor as Y 8 of the total voltage. In practice, however, the current consumption is somewhat greater, equal to that
«5 Normalwert oder auch noch etwas mehr, weil die Permeabilität des Eisens infolge der höheren Sättigung zurückgeht. Für Hochspannungsmotoren liegt in dieser Schaltung auch ein sehr wirksamer Schutz gegen Überspannungen beim Einschalten, da dieselben durch die Drosselwindungen vom Motor ferngehalten werden.«5 Normal value or even a little more, because the permeability of iron decreases as a result of the higher saturation. For high voltage motors This circuit also provides a very effective protection against overvoltages when switching on, as the same be kept away from the engine by the throttle windings.
Der Anlaßschalter erhält nunmehr 5 Stellungen: The starter switch now has 5 positions:
1. Ausgeschaltet (Fig. 4 des Hauptpatents);1. Switched off (Fig. 4 of the main patent);
2. Motor an die Drosselwindungen gelegt, Motor läuft noch nicht an (Fig. 6). Motorspannung etwa Y8, Mdtorstrom etwa 100 Prozent, Netzstrom etwa 100 Prozent;2. Motor connected to the throttle windings, motor does not start yet (Fig. 6). Motor voltage about Y 8 , motor current about 100 percent, mains current about 100 percent;
3. Neutrale geschlossen (Fig. 5), Motor läuft an und kommt auf Touren. Motorspannung etwa Y2, Motorstrom etwa 400 Prozent, Netzstrom etwa 200 Prozent;3. Neutral closed (Fig. 5), engine starts and revs up. Motor voltage about Y 2 , motor current about 400 percent, mains current about 200 percent;
4. Neutrale geöffnet (Fig. 6), Motor läuft weiter. Motorspannung etwa 3/4, Motorstrom etwa 25 Prozent, Netzstrom etwa 25 Prozent;4. Neutral open (Fig. 6), engine continues to run. Motor voltage approximately 3/4, the motor current is about 25 percent, about 25 percent of AC power;
5. Kurzschließen des Anlaßtransformators (Fig. 7), Motor in Arbeitsschaltung.5. Short-circuit the starting transformer (Fig. 7), motor in working circuit.
Die Stellungen 2 und 4 brauchen nicht als besondere Stufen ausgebildet zu werden.Positions 2 and 4 do not need to be designed as special stages.
Es wird also in einfachster Weise erreicht, daß die Spannung am Motor stufenweise erhöht wird, ohne daß eine Stromunterbrechüng oder Entmagnetisierung des Motors erfolgt. Größere Stromstöße beim Einschalten und Weiterschalten sind nicht möglich.It is thus achieved in the simplest way that the voltage on the motor is increased in stages without current interruption or demagnetization of the motor. Larger current surges when switching on and switching on are not possible.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT37173D AT37173B (en) | 1907-12-28 | 1908-08-10 | Device for starting three-phase motors by means of starting transformers designed as autotransformers. |
Publications (1)
Publication Number | Publication Date |
---|---|
DE200996C true DE200996C (en) |
Family
ID=463586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1907200996D Expired - Lifetime DE200996C (en) | 1907-12-28 | 1907-12-28 |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE200996C (en) |
-
1907
- 1907-12-28 DE DE1907200996D patent/DE200996C/de not_active Expired - Lifetime
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