How does Electric Vehicle Charger Car Charging Station with IC Card detect and deal with leakage problems?

Electric Vehicle Charger Car Charging Station with IC Card uses an advanced differential current protection device to effectively detect and deal with leakage problems in terms of AC leakage protection. This device is an electrical safety device designed to monitor the difference between the flow of current in and out of a circuit to ensure that there is no current leakage in the circuit. Leakage means that the current does not flow according to the expected path, but through an unintended path, such as through the human body or leakage to the ground, which may lead to electric shock accidents.

Specifically, a differential current protection device detects whether there is an imbalance in current by comparing the inlet and outlet currents of the circuit. Under normal circumstances, the current should be balanced, that is, the inlet current is equal to the outlet current. However, when leakage occurs, some of the current may flow in unintended paths, causing an imbalance in the entry and exit currents of the circuit. In this case, differential current protection devices can quickly detect this difference and respond accordingly.

Once the differential current protection device detects that the current difference exceeds the preset threshold, indicating that there may be a leakage, it will immediately cut off the power supply to the circuit to prevent electric shock accidents. This action of cutting off the circuit is usually very fast, usually completed within tens of milliseconds, which can greatly reduce the risk of electric shock and protect the user's safety.