Introduction to Shandong Watson Power, Manufacturer of EVWB Series Bidirectional DC Test Power Supplies:
Shandong Watson Power Equipment Co., Ltd. is a high-tech enterprise. Since its establishment in 2002, the company has introduced core German technology and, through over a decade of development, has become a large-scale power supply manufacturer in China. It is an advocate for green, energy-saving, and highly intelligent power products. Its main products include frequency conversion power supplies, shore power supplies, DC test power supplies, and other power products, which are widely used in industries such as home appliances, motors, power tools, ships, ports, electric vehicles, certification testing institutions, and university research laboratories. Watson Power provides integrated solutions for the entire vehicle, motor, electronic control, and battery testing in the new energy electric vehicle industry.
While focusing on its own technological breakthroughs and development, Shandong Watson Power continuously collaborates with various domestic research institutions and serves as a practical training base for Shandong University. Watson has passed multiple certifications, including ISO9001 quality system certification, CE certification, and classification society certification, and has obtained dozens of invention patents. It is recognized as a high-tech enterprise in Shandong Province.
Environmental protection, energy efficiency, and intelligence are the goals pursued by Watson Power. With "talent as the foundation and capital as the support," the company actively embraces challenges, strives to create value and success for customers, and aims to build a globally renowned Watson brand.

Product Introduction of EVWB Series Bidirectional DC Test Power Supply:
The EVWB Series Bidirectional DC Test Power Supply features bidirectional energy flow, capable of supplying power to loads and feeding energy back to the grid without pollution, thereby saving users' electricity costs. It supports continuous adjustment across a full range of voltages from 24~1000V (800V/1200V), currents from 0~1000A (peak 1300A), and power from 0~500KW (peak 650KW). It also supports parallel operation functionality.
It is suitable for the preliminary R&D, later-stage type testing, reliability testing, and production line product final testing of electric vehicle motors and their controllers, electric vehicle powertrain systems, and other related products. It meets the power supply requirements for test items specified in GB/T18488.1-2015, GB/T18488.2-2015, and GB/T29307-2012.

Application Areas of EVWB Series Bidirectional DC Test Power Supply:
1. Electric vehicle motor testing
2. Electric vehicle motor controller testing
3. Electric vehicle powertrain testing
4. Electric vehicle whole vehicle testing
5. Electric vehicle DCDC testing
6. Hybrid vehicle engine testing

Product Features of EVWB Series Bidirectional DC Test Power Supply:
1. Utilizes four-quadrant control technology, enabling bidirectional energy flow across the full power range, ensuring stable operation, energy savings, and high efficiency.
2. Offers multiple output modes, including constant voltage, constant current, and constant power.
3. Transient response time ≤3ms.
4. Employs high-speed digital control technology, achieving an output accuracy of 0.1%.
5. Uses PWM rectification technology, with a power factor >0.99, output harmonics <3%, and efficiency greater than 93%.
6. Features automatic voltage drop compensation, automatically compensating for line voltage drops.
7. Operates via a 7-inch touchscreen for convenient operation and display.
8. Programmable output and protection parameters, adaptable to testing different types of equipment.
9. Internal components from brands such as LEM and Infineon ensure high device reliability.
10. Modular design simplifies后期 maintenance.

Specifications and Models of EVWB Series Bidirectional DC Test Power Supply:
1. EVWB-050-1000, Power 50KW, Output Voltage 24~1000V, Rated Voltage 250V, Current ±200A.
2. EVWB-080-1000, Power 80KW, Output Voltage 24~1000V, Rated Voltage 267V, Current ±300A.
3. EVWB-160-1000, Power 160KW, Output Voltage 24~1000V, Rated Voltage 320V, Current ±500A.
4. EVWB-200-1000, Power 200KW, Output Voltage 24~1000V, Rated Voltage 400V, Current ±500A.
5. EVWB-250-1000, Power 250KW, Output Voltage 24~1000V, Rated Voltage 417V, Current ±600A.
6. EVWB-300-1000, Power 300KW, Output Voltage 24~1000V, Rated Voltage 500V, Current ±600A.
7. EVWB-400-1000, Power 400KW, Output Voltage 24~1000V, Rated Voltage 500V, Current ±800A.
8. EVWB-500-1000, Power 500KW, Output Voltage 24~1000V, Rated Voltage 500V, Current ±1000A.
Note: Output voltage options include 24~800V or 24~1200V.


If you are interested in or have questions about the EVWB Series Bidirectional DC Test Power Supply, you can search "Shandong Watson Power" on Baidu or contact 132 2059 3009 or QQ 3539389044 for detailed product information. Watson Power—Your attentive procurement consultant throughout the process!