Application of DC Electricity Meter in EV charger Industry

Functions:

1. The main incoming line is configured with power quality analyzer: to monitor the power quality of the power supply circuit of the entire charging station, and the leakage current monitoring function is set up simultaneously.

2. The charging circuit adopts three-phase power supply, and its incoming line adopts AC molded case circuit breaker (MCCB).

3. The three-phase main circuit is configured with residual current relay: to provide indirect contact electric shock protection.

4. The three-phase main circuit is configured with din rail type energy meter: due to the high power consumption of this type of charging station, it is used to measure total electric energy and monitor the operating efficiency of the entire charging station in conjunction with a DC energy meter.

5. Install a dc energy meter for evs inside the DC charging station: it is used to measure the energy used for charging electric vehicles.

6. Charging management controller：it is responsible for external human-machine interface, charging control, reading the power data of the DC energy meter with RS485, controlling the opening and closing of DC charging output circuit breaker and so on.

7. DC charging station insulation detection module：in research.