Using DC meters for Charging chargers can obtain high-quality power data in real time more reliably and accurately, ensuring the safe operation of charging chargers and fair metering solutions.
In the first quarter of 2023, global sales of electric vehicles reached more than 2.3 million and the problem of metering solutions. Global sales are expected to increase by 35% year-on-year to 14 million units in 2023, accounting for 18% of the overall automotive market.
The IEA predicts that the number of electric vehicles worldwide will increase 8 times or more by 2030. The total number of EV worldwide will grow from nearly 30 million in 2022 to about 240 million in 2030, with an average annual growth rate of about 30%. With the increasing penetration rate of electric vehicles, the demand for charging chargers will also rise, AC charging chargers charging power is small, charging speed is slow, and the charging efficiency is up to about 90%; The charging efficiency of DC charging charger is above 95%, and the charging speed is fast with high power; Household low-power charging chargers are also developing in the direction of DC charging chargers.
The DC charging charger for electricity metering and billing must use a DC meter , which can measure the voltage, current, power, electricity and other parameters of the DC power supply in real time to ensure that the power conversion and control process of the charging charger is stable and reliable. The DC meter is small in size and the installation method is very in line with the internal structure design requirements of the DC charging charger, which is sought after by the market.
DC meter in accordance with IEC62053-41 and EN50470-4 standards from electric meter company, zhejiang yongtailong electronic co.,ltd.
- it can measure the voltage DC 5V~1000V, and the maximum current can be measured 2000
- Using shunt sampling mode, standard 75mV sampling signal, high measurement accuracy, according to the actual current size of the site can be connected to different current specifications of shunts
- DC meter has RS485 communication: for parameter setting and data reading; Support DLT 645 protocol/Modbus protocol, baud rate can be set up to 115200bps
- DC meter has overload alarm function: when the current exceeds the set threshold, the alarm light lights up and alarms
- DC meter support multi-tariff function
- Built-in switching relay output When the relay action is overcurrent, it can trigger external equipment to cut off the power supply
- Firmware upgrade can be carried out through RS485 communication, and it can be used to change the function on site for new needs
- It can measure DC power, current, voltage, electricity, etc., with current accuracy of 0.5%, voltage accuracy of 0.5%, accuracy class1
DC EV chargers can convert AC energy into DC power and directly charge it into the battery of electric vehicles, without additional energy conversion, thereby reducing energy waste and saving energy resources. This is also in line with the environmental protection concept of energy conservation and emission reduction advocated by the state, which is conducive to protecting the environment.
