一个视频说清楚无功补偿

2026-02-10

交流电源和电感间进行的功率交换就是无功，给电感并上一只电容器，电容器将替代电源和电感进行功率交换，这就是无功补偿。此时电源可有可无（电容器对电感全补偿）。 What is reactive power compensation？Reactive power refers to the power exchanged between an AC power source and an inductor.If you connect a capacitor in parallel with the inductor, the capacitor will take the place of the power source to exchange power with the inductor. That’s what reactive power compensation is all about.And when that happens, the power source is no longer needed (this is what we call full compensation of the inductor by the capacitor).

电容无功补偿的意义是什么？

2026-02-10

给电机通电，它的线圈，会吸收电能，然后激发磁场，用来激发磁场的这部分功率，就是无功功率。显然电机不能没有磁场，也就是说电源线上的电流，部分是用来输送无功功率的。为了减轻线路的负担，若给电机并上电容，由于电容的无功正好和电感互补，电机所需的无功就由电容来承担，进而减小了电源线上的电流，这就是补偿的意义。 What is the significance of capacitive RPC?When a motor is energized, its coils absorb electrical energy and then generate a magnetic field. The portion of power used to generate the magnetic field is reactive power. Obviously, a motor cannot operate without a magnetic field, which means part of the current on the power line is used to transmit reactive power. To reduce the load on the line, if a capacitor is connected in parallel with the motor, the reactive power of the capacitor complements that of the inductor exactly. The reactive power required by the motor is then supplied by the capacitor, thereby reducing the current on the power line. This is the significance of compensation.

一篇文章搞清楚：电容、储能、耦合和谐振

2025-12-19

电容就好比水坑，水流过来，在水坑缓冲一下，再流过去就平稳了，这就是滤波。一、什么是储能呢？答：留在水坑里的水就是储能。二、什么是耦合呢?答：水流流过的频率慢，水进入坑里不连通，水频率快了，来不及充满水坑就连通了，通高频、阻低频、帮助信号高速传递就是耦合。三、什么是谐振?答：电容与电感接合，可以在电路中产生震荡，这就是谐振。