Common Reactive Power Compensation Methods in The Power Grid

The commonly used reactive power compensation methods in the power grid include:
① Centralized compensation: Install parallel capacitor banks in high and low voltage distribution lines;
② Group compensation: Install parallel compensation capacitors on the low-voltage side of the distribution transformer and the distribution panel in the user's workshop;
③ Local compensation for single motor: Install parallel capacitors at the location of the single motor.
Installing reactive power compensation equipment can not only reduce power consumption and improve power factor, but also fully tap into the potential of equipment transmission power.
When determining the reactive power compensation capacity, the following two points should be noted:
① It is also uneconomical to avoid overcompensation during light loads, as reversing reactive power can increase the power loss rate.
② The higher the power factor, the smaller the effect of reducing losses per kilovolt compensation capacity. Generally, increasing the power factor to 0.95 is a reasonable compensation.