Energy meter can also be used like this you know?
With the continuous breakthrough of renewable energy technologies, new green energy such as photovoltaic and wind power has become an important supplement to the power supply. Electric vehicles are increasingly favored due to their zero-pollution emissions, and charging stations responsible for powering electric vehicles are used as electric vehicles. Vehicle auxiliary facilities have become more and more important to people's attention. The safety of their operation has also been receiving increasing attention. With years of in-depth development of smart grid user-end products, Instrument Instruments has introduced electrical safety suitable for charging stations of electric vehicles. , Energy metering product application program.
First, AC charging station product plan:
AC charging piles generally have a power of about 7 kW. The total line return is equipped with a power quality analyzer to monitor the power quality of the entire charging pile power supply loop. The incoming circuit is equipped with an electrical fire monitoring device, a charge management controller, which is responsible for charge and charge control, and a single-phase rail type AC power meter for charging energy metering. The power data is read by the charge management controller through the RS485 communication port; The line side is equipped with a leakage protection circuit breaker; the charge side is equipped with a live operation miniature circuit breaker.
Second, small car DC charging pile
The small DC charging piles generally have a power of about 12 kW. The total line return circuit is equipped with a power quality analyzer to monitor the power quality of the entire charging pile power supply loop. Into the line circuit at the same time set up electrical fire monitoring devices, access to fire monitoring back-end system. The charging circuit adopts three-phase power supply, and its input line is equipped with a miniature circuit breaker with leakage protection. The charge management controller is responsible for the external human-machine interface, charge control, reading the power data of the DC energy meter, and controlling the switching of the DC charging output circuit breaker. Built-in DC energy meter with external Hall sensor or shunt to achieve the measurement of charging power, Hall because of its non-contact measurement and shunt compared to, can have a higher installation convenience and electrical safety performance.
Third, electric bus charging pile
The large-scale electric bus DC charging pile has a relatively large power, about 200kW, and the power line quality analyzer is configured in the total line circuit to monitor the power quality of the entire charging pile power supply loop. At the same time set up the electrical fire monitoring device, the charging circuit adopts three-phase power supply, and its incoming line adopts AC molded case circuit breaker. The three-phase main circuit configures the residual current relay and provides indirect contact protection. Due to the large power consumption of such charging piles, it is recommended to configure a rail-type energy meter in its three-phase AC circuit for the measurement of total electrical energy, and to monitor the operating efficiency of the entire charging station with a DC power meter. The charge management controller is responsible for the external human-machine interface, charge control, reading the power data of the DC energy meter, and controlling the switching of the DC charging output circuit breaker.
Zhejiang Chint Instrument & Meter Co., Ltd
Wenzhou Production Base: Wenzhou Bridge Industrial Zone, Yueqing, Zhejiang, PR.China
Headquarter: No.560, Yueming Road, Binjiang District, Hangzhou, Zhejiang, China