CONTROL AND PROTECTIVE SYSTEM FOR INDUCTION MOTOR DRIVES

FIELD: contactless ac drives for all industries. SUBSTANCE: system has set of reverse-conducting thyristor switches connected to respective phases of motor supply mains and control unit. Make control contacts of starting relay are connected to gate electrodes of thyristor switch; control unit is pro...

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Bibliographische Detailangaben
Hauptverfasser:	SHMAKOV A.N, BAKLAJKIN B.A, SHMAKOV V.N
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 EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION
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Beschreibung
Zusammenfassung:	FIELD: contactless ac drives for all industries. SUBSTANCE: system has set of reverse-conducting thyristor switches connected to respective phases of motor supply mains and control unit. Make control contacts of starting relay are connected to gate electrodes of thyristor switch; control unit is provided with newly introduced threshold current, voltage, and temperature shapers as well as with data processing and display device. EFFECT: provision for on/off control of several parallel-running drive motors having different performance characteristics. 6 dwg