YKK collection 6KV (seat variety 355-800), YKK sequence 10KV (seat quantity 450-800) substantial-voltage a few-phase induction motor insulation quality F, rated frequency 50Hz, S1 continuous working system, safety grade IP44 or IP54, cooling manner IC611, prime with air-to-air cooler, installation form IMB3 (horizontal with foot), seat variety 630 and with base foot. The higher two-pole motor and YVPKK variable frequency motor cooler with fan are cooled by IC646.

ZheJiang Welwoo Power Co., Ltd. was started in April 2006.It has 216 staffs.The main generation are reduced substantial voltage motors, new strength electric car making use of motors and managed programs,and metal gear reduction motors.Its a business of study,manufacture,sales,provider,intercontinental trade.