FIELD: electricity.
SUBSTANCE: electric drive includes three-phase rectifier bridge to which ends of stator windings of asynchronous motor are connected. Polar outputs of rectifier bridge are connected through transistors to neutral wire of supply voltage. Connection points of stator windings to the bridge are also connected to neutral wire through RC-chains.
EFFECT: decrease of voltage on switches and switching overvoltages occurring during the operation; providing possibility of implementing dynamic braking mode.
3 dwg
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