感应电荷准静法计算杆塔模型的冲击响应与NEC 2的计算结果基本一致。
The strike response calculated by quasi-steady induced charge method agrees basically with the results calculated by method of NEC-2.
感应电机采用传统的硬起动会给定子的转矩和电流带来较大冲击，故需研究电机的软起动过程。
The soft start-up process of electronic induction motor is studied in order to avoid the enormous impulsion to its starting stator current and torque brought by direct start.
软启动器可以限制感应电机的起动电流及起动转矩，减少了电机起动过程中对电网的冲击，延长了电气设备和机械结构的使用寿命。
Soft-starter can limit the start current and torque of the induction-motor, reduce the influence to the power circuit in the starting process, and prolong electrical equipments' working life.
本文研究了三相感应电动机软起动器，主电路由三组反并联的晶闸管构成。通过控制晶闸管的触发角，可降低三相感应电动机定子电压，从而达到抑制起动电流冲击的目的。
The principle of the soft starter is reducing the voltage applied to the stator of the induction motor by control the triggering angle of the thyristors in order to limit the starting current surge.
用轴对称式电磁感应探头测量冲击波速度，测量精度约1.2 ~ 1.5%。
Shock velocities were measured to 1.2 ~ 1.5% accuracy using the ASM probe.
用轴对称式电磁感应探头测量冲击波速度，测量精度约1.2 ~ 1.5%。
Shock velocities were measured to 1.2 ~ 1.5% accuracy using the ASM probe.
应用推荐