EVWB Series Bidirectional DC Test Power Supply Product Introduction:
The EVWB series bidirectional DC test power supply features bidirectional energy flow, capable of providing power to loads and feeding energy back to the grid without pollution, saving users electricity costs. It supports a full range of continuously adjustable parameters: voltage 24~1000V (800V/1200V), current 0~1000A (peak 1300A), and power 0~500KW (peak 650KW). It also supports parallel operation.
Suitable for preliminary R&D, later type testing, reliability testing, and production line product final testing in fields such as electric vehicle motors and controllers, and electric vehicle powertrain systems. Meets the power supply requirements for test items in GB/T18488.1-2015, GB/T18488.2-2015, and GB/T29307-2012.

EVWB Series Bidirectional DC Test Power Supply Application Areas:
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

EVWB Series Bidirectional DC Test Power Supply Product Features:
1. Utilizes four-quadrant control technology, enabling bidirectional energy flow across the full power range, stable operation, energy-saving, and high efficiency.
2. Features multiple output modes: 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 power factor >0.99, output harmonic <3%, and efficiency greater than 93%.
6. Equipped with automatic voltage drop compensation function, automatically compensating for line voltage drop.
7. Operates via a seven-inch touchscreen for convenient operation and display.
8. Programmable output and protection parameters, suitable for testing different types of equipment.
9. Internal components use brands such as LEM and Infineon, ensuring high equipment reliability.
10. Modular design facilitates easy maintenance.

EVWB Series Bidirectional DC Test Power Supply Models and Specifications:
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.

Introduction to EVWB Series Bidirectional DC Test Power Supply Manufacturer Shandong Watson Power:
Shandong Watson Power Equipment Co., Ltd. is a high-tech enterprise. Since its establishment in 2002, it has introduced core German technology and, after over a decade of development, has become a large-scale power supply manufacturer in China, advocating for green, energy-saving, and highly intelligent power products. Main products include frequency conversion power supplies, shore power supplies, DC test power supplies, etc., applied 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 new energy electric vehicle industry, including whole vehicle, motor, electronic control, and battery testing.
While focusing on its own technological breakthroughs and development, Shandong Watson Power continuously collaborates with multiple domestic research institutions and serves as a student practice base for Shandong University. Watson has passed certifications including ISO9001 quality system certification, CE certification, and classification society certification, and has obtained dozens of invention patents. It is a high-tech enterprise in Shandong Province.
Environmental protection, energy saving, and intelligence are the goals pursued by Watson Power. With "talent as the foundation and capital as the support," it actively embraces challenges, strives to create value and success for customers, and builds the globally renowned Watson brand.


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