Method and apparatus for switching back a change-pole motor

To enable a gentle switching back of a change-pole motor to a low speed while ensuring the full moment or torque on passing into motor operation, a method for switching back the change-pole motor to the lower speed is proposed wherein initially there is a two-phase switching back to the lower speed,...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	JOSEF SCHMIDT, WALTER TRUMPLER
Format:	Patent
Sprache:	eng
Schlagworte:	CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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