SPEED CONTROL DEVICE FOR DC MACHINE

PURPOSE:To perform speed control stably, by a method wherein field current is reduced when input AC voltage of a thyristor rectifier drops beyond allowable voltage drop value determined by alpha limit value of the thyristor rectifier. CONSTITUTION:A thyristor rectifier 2 is controlled corresponding...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	MORI TOKUJI
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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