EVWB Bi-direction Test Power Supply

The EVWB series bi-directional dc test power supply is characterized by bi-directional flow, which can not only provide power for load, but also feedback power to the power grid without pollution, saving space and cost for users. It is continuously adjustable within the full range of voltage 24~800V (1000V), current 0~1000A (peak 1300A)/power 0~500KW (peak 650KW). 

The EVWB series can work in different operating modes such as CV/CC/CP, which can meet the precise testing requirements of different loads. It has a complete self-diagnosis and protection functions, which can prevent instrument damage or personal injury caused by wrong operation or environmental factors. 

It is suitable for the early research and development, type test, reliability test of EV motor and its controller, EV powertrain system and other products, as well as the ex-factory test of products on the production-line. It meets the power supply requirements of GB/ T18488.1-2015, GB/ T18488.2-2015 and GB/ T29307-2012. 



1. Four-quadrant control technology adopted, full power range bi-direction energy flow, high efficiency energy feedback to power grid.
2. Output modes of constant voltage, constant current, constant applied.
3.Fast response speed.
4.High-speed digital control technology, 0.1% output precision.
5.PWM rectifying technology, power factor>0.99, input harmonics<3%, efficiency better than 93%.
6. Automatic line voltage compensation function can automatically compensate line loss.
7. 7'' touch screen for operation and display.
8. The output parameters and protection parameters are programmable and can be used for different types of equipment testing.
9. World-famous brand components used, like Infineon and LEM.

10. Built-in modular design for convenient maintenance.