Reactive Power and compensation

Reactive Power is the power consumed by electric devices that do not consume power. In the power system, reactive power is used to establish a magnetic field and use it as an exchange energy. They are converted from electric energy to a magnetic field, then, it is converted from a magnetic field to an electric energy, which does not work on the external circuit. However, reactive power is not useless. Without this power, it is impossible to establish an induction magnetic field, and the motor transformer and other power equipment cannot work normally. The compensation principle for Reactive Power Compensation is neither less compensation nor excessive compensation.
The reactive power of many electrical equipment is relatively large, so reactive power compensation should be made for it. After such reactive power is compensated, the power factor can be increased. Improve power quality.

When the AC passes through the pure resistance, the electric energy is converted into heat energy, and when the AC passes through the pure capacitive or pure inductive load, it does not do work. that is to say, there is no power consumption, that is, reactive power. of course, the actual load cannot be pure capacitive load or pure inductive load. Generally, it is a mixed load, so the current
When they are used, some electric energy does not work, that is, reactive power. At this time, the power factor is less than 1. To improve the utilization of electric energy, we need to increase the power factor, compensation for capacitive loads is needed, and vice versa.

Reactive Power and compensation