DEVICE FOR DYNAMIC BRAKING OF THREE-PHASE INDUCTION MOTOR

FIELD: electric drive dynamic braking in various industries. ^ SUBSTANCE: proposed device has contactor incorporating coil with four make and one break contacts, STOP button, START button, controlled rectifier, speed-induced voltage sensor, and limiting amplifier. Novelty is introduction of differen...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ALEKSEEV A.K, DMITRIEVA S.K, DMITRIEV G.N, TUKMAKOV V.P, TITOVA N.V, TITOV A.D, KUDRJASHOV JU.P, TUKMAKOV P.K
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: electric drive dynamic braking in various industries. ^ SUBSTANCE: proposed device has contactor incorporating coil with four make and one break contacts, STOP button, START button, controlled rectifier, speed-induced voltage sensor, and limiting amplifier. Novelty is introduction of differentiating unit, setting unit, comparison unit, and mentioned rectifier control unit; output of start-induced voltage sensor is connected through break contact of contactor to input of differentiating unit whose output is connected to first input of comparison unit; limiting amplifier output is connected to input of setting unit whose output is connected to second input of comparison unit; output of the latter is connected through rectifier control unit to control input of controlled rectifier. ^ EFFECT: enhanced braking precision and operating reliability of device. ^ 1 cl, 1 dwg