YTSZ-series VVVF variable speed three-phase induction motors for metallurgical and crane use, based upon YTSP-series VVVF variab
YTSZ-series VVVF variable speed three-phase induction motors for metallurgical and crane use, based upon YTSP-series VVVF variable speed three-phase induction motors, are a newly developed series of products by our company in accordance with the operating feature of metallurgical and crane three-phase induction motors. Synthesized with our several decades rich experience in manufacturing DC motors for metallurgical and crane use and AC elevator motors as well as research achievements in AC VVVF speed regulation, the motors are both considered in the electromagnetic, structural and insulation system designs to possess the adaptability to inverter-fed power supply and speed regulation of VVVF in wide range. Combined with favorable starting and braking functions of VVVF speed regulation, they are especially suitable for those applications where the VVVF speed regulation, short-time or intermittent duty operation, frequent starting and braking are adopted. The basic technical requirements of the motors conform to the international IEC60034-1 standard and China standard GB755, and their mounting dimensions to the international standard IEC72 .