zero frequency current的意思|示意

Measure function: can measure current, voltage, active power, reactive power, frequency, zero sequence current, electric energy, 2 pulse inputs implement watt-hour meter auto read;

测量功能：高精度测量电流电压、P、Q、功率因数、频率、零序电流、计算电度；2路脉冲量输入实现外部电度表自动抄表；

Through electrostatics and examples of low-frequency alternating current and direct-current circuit, the problem of zero potential point is queried and clarified.

通过静电学、低频交流、直流等电路实例，质疑了电势零点问题，并对此进行了澄清。

The paper presents a novel ultra-audio frequency (UAF) induction welding power based on ZCS-PWM(Zero Current Switching-Pulse Width Modulation) technology.

介绍一种基于ZCS-PWM（零电流开关-脉宽调制）技术的新型超音频感应焊接电源。

Quality square wave power supply, current zero crossing time is short, arc stability, arc without high frequency stability.

优质方波电源，电流过零时间短，电弧稳定，无需高频稳弧。

At present power converters of DC driving system make power supply outputs a high-frequency pulsating current, which is from zero to the armature current. This large ripple damages batteries.

目前国内外电动车直流驱动功率变换器使储能电源输出电流从零到电机电枢电流高频脉动，不利于延长动力电池的使用寿命。

The zero-sequence angle-frequency characteristic of the lines are studied based on it and the characteristics of transient zero-sequence current in different frequency ba.

根据这一特点，对小电流接地系统中线路的零序参数相频特性进行研究，得出系统发生单相接地故障时不同频带上暂态零序电流特性。