应限制启动次数，正确选用热保护，按电动机上标定的定额使用。
Should limit the number of activated, the correct choice of thermal protection, according to motor on the use of fixed calibration.
分析了不同转子磁路结构对电动机磁阻转矩的影响，确定了地铁用永磁同步电动机转子磁路结构的选用原则。
The influence of different rotor structure to the reluctance torque is analyzed, and given the selection principle of the rotor structure.
为改善地面操作起重机的起动、点动运行性能，可选用绕线型电动机加外延时继电器控制。
Slip-ring motor can be used in conjunction with time delay relays for floor operated cranes to improve their travelling quality during start and inching.
设计五相十拍步进电动机驱动电路时选择了89c 2051作为环形分配器，而功率器件选用电压型的VMOS管。
When designing the step motor drive circuit of 5 phase 10 pat, 89c2051 is adopted as the Loop allotter. The VMOS is adopted in power elements. It is designed as chopper-type constant current circuit.
因配套原因两台功率与负载特性相差较大的高压电动机组必须选用一套启动设备对两台机组进行一拖二控制。
Two high voltage motors with significantly different power and load have to be started by the same set of starting device. Liquid soft starting devices for high voltage A.
如选用小皮带轮，可扩大三角皮带的传动范围，双轴伸电动机的风扇端，仅允许用联轴器传动。
If choose small belt pulley, it may enlarge the transmission of texrope. The ends of fan of dual-axes motor are only allowed to transmit by coupler.
如选用小皮带轮，可扩大三角皮带的传动范围，双轴伸电动机的风扇端，仅允许用联轴器传动。
If choose small belt pulley, it may enlarge the transmission of texrope. The ends of fan of dual-axes motor are only allowed to transmit by coupler.
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