What is the impact of "reactive power" to the electricity system?

The impacts of reactive power are:
1. Affecting the voltage level: Insufficient or excessive reactive power will cause the voltage to decrease or increase, affecting the power quality.
2. System stability: Reasonable reactive power distribution helps to improve the stability and reliability of the system.
3. Network loss: Unreasonable flow of reactive power will increase the loss in the power network.
4. Utilization of equipment capacity: The situation of reactive power will affect the utilization efficiency of the effective capacity of electrical equipment.