ELECTRIC DRIVE

FIELD: electrical engineering; electric drives for mine lifting machines. ^ SUBSTANCE: proposed electric drive has induction motor, three-phase rectifier bridge, starting resistor, two optical thyristors incorporating reference-voltage supply, tachometer generator, thyristor, electrolytic capacitor,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MALINOVSKIJ ANATOLIJ KUZ'MICH, MARTYNENKO DENIS NIKOLAEVICH, SHALUPENKO VLADIMIR FEDOROVICH, SPITSYN BORIS ALEKSANDROVICH, LEBEDEV SERGEJ VLADIMIROVICH
Format:	Patent
Sprache:	eng ; rus
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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Beschreibung
Zusammenfassung:	FIELD: electrical engineering; electric drives for mine lifting machines. ^ SUBSTANCE: proposed electric drive has induction motor, three-phase rectifier bridge, starting resistor, two optical thyristors incorporating reference-voltage supply, tachometer generator, thyristor, electrolytic capacitor, line contactor with make contacts, auxiliary breaking contact in thyristor gate electrode circuit, current relay, dynamic braking resistor, and half-controlled rectifier bridge with current-limiting resistors. ^ EFFECT: reduced motor braking time, enhanced life of brake shoes, enhanced reliability and capacity of mine lifting installation. ^ 1 cl, 1 dwg