In preparation PWM transducer three-phase asynchronous motor-driven devices as transducer output voltage higher when thing between vehicles and electrical transmission lines over a certain length it will be produced in the electrical winding-peak voltage the insulation will affect the performance of electric motors and life .

在脉宽调制PWM变频器驱动三相异步电动机装置中，由于变频器输出 电压dv/dt较高，当逆变器与电机 之间传输 电缆超过一定长度时，在电机绕组端将产生电压尖峰，影响电动机的绝缘性能和寿命。

The low voltage distributor and exchanger between two supply lines will be supplied by buyer .

由买方提供 低压配电柜，并做 两路 自动 切换设置。

Voltage between lines of a polyphase system

多相系统的 线 间 电压

The integrating criterion for distinguishing permanent or instantaneous fault condition is put forward using voltage amplitude of fault-phase phase relationship of voltages between fault line and no-fault lines and harmonic of fault phases voltage .

提出采用故障相 电压幅值大小，故障相电压与非故障 线路电压 之间的相位比较，以及故障相电压谐波大小的综合判据，以区分永久性故障与瞬时性故障，实现有选择的单相自动重合闸。

In this paper the author first discusses how the electric voltage between electric poles on the cross-section is divided into some equations with equipotential lines obtained by conformal transformation .

首先用由保角变换得到的等位 线，将离心圆柱电容器的横截面上电极 间 的 电压等分为若干等份；

Knowing the relativity of the voltage sags between the lines in complex power system will help to analyze and prevent the voltage sags .

明确复杂网络 线路 间 电压暂降相关性将有助于分析和抑制电压暂降现象。

Two-level sense amplifier amplifies the tiny voltage difference between the bit lines and enhances the anti-jamming ability .

两级敏感放大器的应用在确保对位 线微小 电压 差的放大的条件下，提高了抗干扰能力。