Why should reactive power compensation be carried out? What is the principle and form of reactive power compensation?

1、 Why should reactive power compensation be carried out?        Reactive power is by no means useless power. In the AC power supply system, inductance and capacitance are essential loads, such as ferromagnetic loads such as motors and transformers. If there is no excitation of inductive reactive power, the equipment cannot work normally. For example, the line itself that transmits power at a fixed distance is a capacitive load. As long as it is transmitting power, it will be equivalent to the capacitor working. In other words, in the AC power supply system, the existence of reactive power is of great significance to the transmission and exchange of energy, which is indispensable, or the exchange system without reactive power can not work normally.    

The significance of reactive power compensation

Why do we need reactive power compensation? From the function of reactive power, it can be seen that the electrical equipment should not only obtain active power from the power supply, but also obtain reactive power from the power supply. If the reactive power in the power grid is too low, the electrical equipment will not have enough reactive power to establish a normal electromagnetic field, these electrical equipment will not be able to work under rated conditions, and the terminal voltage of the electrical equipment will drop, which will affect the normal operation of the electrical equipment.    

Improve power factor and treat harmonic-MEC

The client is a manufacturer of sealed lead-acid batteries. Due to the excessive harmonic of the equipment in the plant, the capacitor of the original compensation cabinet was blown up several times, and there is a power regulation charge every month. Our company appoints technicians to go to the site for measurement, makes comprehensive analysis in combination with the on-site working conditions and measurement data, and after optimization for many times, issues a reasonable compensation scheme to the customer, and configures a special power quality comprehensive treatment device MEC, which can not only control harmonics, but also compensate reactive power, with fast response speed, improve power quality and realize two-way treatment function.