FIELD: transport.
SUBSTANCE: invention relates to railway transport and may be incorporated with switch AC and DC drives. Contactless controlled electric motor with rotor-position transducer, voltage level transducer, current transducer and diagnosing device makes the switch drive. Diagnosing device sends signals to comparator input for it to generate signals about switch drive operating, pre-fault or emergency conditions.
EFFECT: higher reliability and safety.
3 cl, 3 dwg
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