Importance of ground insulation monitoring and grounding protection for electric vehicle DC charging equipment installation
With the large-scale construction and application of electric vehicle charging stations and charging piles, their safety has received more and more attention. The main reason is that DC charging piles have high power, large volume, high voltage, and are often equipped with batteries for energy storage, with complex structures. When the DC side insulation is poor, it will cause equipment damage, fire, and electric shock. Since the DC side leakage fault cannot cause the AC side leakage protector to operate, it is very important to add DC side insulation detection and ground fault protection devices.