APPLICATION

■ Electrical laboratory; ■ EV & Charging pile factory; ■ Metrological service center; ■ Laboratories of power utilities; ■ Third party testing organization; ■ Electricity power bureau & power company; ■ National Metrology and testing department; ■ Charging pile operation and maintenance organization;

FEATURES & FUNCTIONS

■ 80A fuse single box short circuit protection;

■ With overcurrent, overvoltage and short circuit protection;

■ As an AC load box of 48kW, the rated working current is 70A;

■ The capacity can be expanded through cascade, with the maximum DC power of 240kw and the maximum AC power of 48kW;

■ When the DC load box is 240kw, the voltage is 0~1000v, and the constant current 240A and constant power 240kw can be realized within the full voltage range;

■ It has emergency stop leakage protection, overcurrent, overvoltage and short-circuit protection functions, as well as automatic resistance shift function;

■ AC / DC bus input and safety anti electric shock interface for cascading shall be provided. Safety shall be fully considered for all interfaces to avoid touching relevant live conductors with hands;

■ In terms of communication, it can communicate with the host computer through RS232, and also can transmit internal data with BMS equipment through CAN bus. At the same time, it has the function of real-time data monitoring serial port and USB upgrade burning program;

■ The equipment has the ability to simulate the whole charging process of various electric vehicle power batteries, such as constant current mode, constant voltage mode, constant power mode, constant resistance mode, etc;

■ The equipment is equipped with voltage and current calibration and correction function, which can calibrate and correct the measured value of the instrument at any time, so as to ensure the measurement accuracy of the instrument used for a long time;

■ Under the rated voltage, the minimum current step is 0.005a, and a single device has 65536 gears;

■ It has the function of insulation grounding protection inspection, and anti reverse grounding protection measures are added at the same time;

■ It has an emergency stop switch to cut off the charging circuit immediately in case of an accident, and disconnect the loading gear of the equipment. At the same time, it can realize the continuous operation and heat dissipation of the fan, prevent the internal components from being damaged due to excessive temperature, and ensure the personal and property safety of the staff;

■ Built in temperature sensor, with over temperature protection system and fan intelligent control system, when the temperature in the box is too high, the load is actively disconnected for high temperature protection, and an alarm is sent out at the same time. In addition, the temperature in the box can be monitored through the debugging serial port;

■ Forced air cooling is adopted, and the motherboard control relay with armcortex-m4 as the core is used to control the fan of the cooling system, which can efficiently realize the equipment cooling and save the power cost;