Renhuai Electric Vehicle Maintenance Project
When the charging post is built, it should be used and managed well. The implementation of management responsibility and clear operation mode can make the charging pile safe and reliable. At present, the charging pile is faced with the problem of unclear management responsibility and unclear operation mode. There are some problems such as the aging of distribution facilities in the community, who will pay for the reconstruction, the quality of piles is mixed, and who will solve the hidden fire hazards. The same is true of public charging posts. There are not many DC fast charging piles with high investment standards and high power, but "problem piles" and "zombie piles" are common. In recent years, the number of charging pile construction and operators in China has grown rapidly, but the level of enterprises is uneven.
Renhuai Electric Vehicle Maintenance Project
At present, the living standard of our people is constantly improving, and the automobile industry is also growing. The car has been basically popular, but with the increase of cars, many problems have also come. Oil is the fuel of traditional cars, not only in China, but also globally, the oil gap in many regions is growing, and the gap will continue to rise in the future. Moreover, the exhaust emissions also cause air pollution. Developing a low-carbon and environmentally friendly economy has always been an economic model advocated by countries around the world. Vigorously developing new energy models not only can protect the environment and save energy, but also new energy technologies are a new round of business opportunities for major enterprises.
Renhuai Electric Vehicle Maintenance Project
According to the new national standard, the charging plug standard of different models in the future is the same. Xu Xinchao said, "Although there will be differences in voltage and power, theoretically it can be used in the same charging point. In addition, the new national standard attaches particular importance to the safety of the charging pile, which has always been the top priority. The standardized charging pile of new energy vehicles will automatically cut off power after charging, making breakthroughs in insulation and avoiding electric shock in rainy days, so as to avoid unnecessary dangers for new energy owners during charging. ".
Renhuai Electric Vehicle Maintenance Project
3. Power requirements: ① Input voltage: single-phase 220V; ② Output power: single-phase 220V/5KW; ③ Frequency: 50Hz ± 2Hz; ④ Allowable voltage fluctuation range: single-phase 220V ± 15%; 4. Electrical requirements: ① After the correct connection of plug and socket is confirmed to be successful, the circuit that can be opened and closed with load can be closed to supply power to the socket; ② The leakage protection device shall be installed on the incoming side of the power supply cable; ③ The protection of low-voltage distribution equipment and lines shall meet the relevant provisions in the Code for Design of Low Voltage Power Distribution (GB/50053); ④ For the distribution line of IT system, in case of ground fault, the insulation monitoring device shall send out audio or light signals. In case of the second phase to phase ground fault, the fault circuit shall be cut off by the over-current protection appliance or leakage current action protector; ⑤ In the lighting distribution system, the lighting and socket circuits should not be powered by the same circuit.
Renhuai Electric Vehicle Maintenance Project
Functional features: 1. Provide human-computer interaction; Provide DC and AC charging interfaces; 2. With voice prompt function; With card swiping function; 3. It has the function of printing vouchers; 4. Real time communication with BMS to obtain information such as power battery type, unit voltage, residual capacity, temperature and alarm; 5. Generate control commands and switch signals to the charger, control the start and stop of the charger, and obtain the status information of the charger; 6. Complete safety protection control logic such as connection state judgment, interlocking, control guidance of charging interface; 7. With CAN2.0B and RS485 communication interfaces, it can communicate with centralized monitoring and submit charging status information; 8. It has the protection functions of electric leakage, short circuit, overvoltage, undervoltage, overcurrent, etc. to ensure the safe and reliable operation of the charging pile (plug); The protection grade is IP54.
