The EVWD series bidirectional DCDC test power supply is a DC input bidirectional DC power supply for the common DC bus system. It is a low-cost test power supply solution developed specifically for motor controllers, drive motors, and vehicle testing in the new energy vehicle industry. It uses pure digital control technology and can be applied to the early development, later type testing, reliability testing, and factory testing of motor controllers and drive motor products, as well as product line product testing.
It is particularly suitable for dynamometer test benches and towing test benches for common DC bus, and can also be used to upgrade existing DC power supply systems.
1. Energy flows bidirectionally at full power, stable and reliable operation, energy saving and high efficiency.
2. It has multiple output modes including constant voltage, constant current and constant power.
3. Rapid transient response.
4. Adopting high-speed digital control technology, the output accuracy reaches 0.1%.
5. Adopting PWM rectification technology, the power factor is >0.99, the input harmonic is <3%, and the efficiency is greater than 93%.
6. It has automatic voltage drop compensation function, which automatically compensates the line voltage drop.
7. It adopts a seven-inch touch screen operation, which is convenient for operation and display.
8. The output parameters and protection parameters are programmable and can be applied to different types of equipment testing.
9. The internal components adopt international brands such as LEM and Infineon, and the equipment has high reliability.
10. The modular design is adopted, and the equipment is easy to maintain in the later stage.
Product Model | EVWD-050-400 | EVWD-080-400 | EVWD-050-800 | EVWD-080-800 | EVWD-160-800 | EVWD-250-800 |
Rated Power | 50kW | 80kW | 50kW | 80kW | 160kW | 250kW |
Peak Power | 75kW | 120kW | 75kW | 120kW | 208kW | 325kW |
Output voltage | 24V~400V | 24V~800V | ||||
Rated voltage | 167V | 200V | 250V | 267V | 320V | 417V |
Rated current | 300A | 400A | 200A | 300A | 500A | 600A |
Peak current | 450A | 600A | 300A | 450A | 650A | 780A |
Input voltage | DC 650V | DC 810V | ||||
Output accuracy | ≤0.1% F.S | |||||
Ripple(Vrms) | ≤0.2% F.S | |||||
Response time | ≤10ms (10%~90% sudden load, input voltage fluctuation within ±5%) | |||||
Switching time | ≤10mS (+90%~-90% switching, input voltage fluctuation within ±5%) | |||||
Communication interface | RS485 (standard), CAN (optional), Ethernet (optional) | |||||
Noise | ≤65dB | |||||
Ambient temperature | 0℃~45℃ |
The EVWD series bidirectional DCDC test power supply is a DC input bidirectional DC power supply for the common DC bus system. It is a low-cost test power supply solution developed specifically for motor controllers, drive motors, and vehicle testing in the new energy vehicle industry. It uses pure digital control technology and can be applied to the early development, later type testing, reliability testing, and factory testing of motor controllers and drive motor products, as well as product line product testing.
It is particularly suitable for dynamometer test benches and towing test benches for common DC bus, and can also be used to upgrade existing DC power supply systems.
1. Energy flows bidirectionally at full power, stable and reliable operation, energy saving and high efficiency.
2. It has multiple output modes including constant voltage, constant current and constant power.
3. Rapid transient response.
4. Adopting high-speed digital control technology, the output accuracy reaches 0.1%.
5. Adopting PWM rectification technology, the power factor is >0.99, the input harmonic is <3%, and the efficiency is greater than 93%.
6. It has automatic voltage drop compensation function, which automatically compensates the line voltage drop.
7. It adopts a seven-inch touch screen operation, which is convenient for operation and display.
8. The output parameters and protection parameters are programmable and can be applied to different types of equipment testing.
9. The internal components adopt international brands such as LEM and Infineon, and the equipment has high reliability.
10. The modular design is adopted, and the equipment is easy to maintain in the later stage.
Product Model | EVWD-050-400 | EVWD-080-400 | EVWD-050-800 | EVWD-080-800 | EVWD-160-800 | EVWD-250-800 |
Rated Power | 50kW | 80kW | 50kW | 80kW | 160kW | 250kW |
Peak Power | 75kW | 120kW | 75kW | 120kW | 208kW | 325kW |
Output voltage | 24V~400V | 24V~800V | ||||
Rated voltage | 167V | 200V | 250V | 267V | 320V | 417V |
Rated current | 300A | 400A | 200A | 300A | 500A | 600A |
Peak current | 450A | 600A | 300A | 450A | 650A | 780A |
Input voltage | DC 650V | DC 810V | ||||
Output accuracy | ≤0.1% F.S | |||||
Ripple(Vrms) | ≤0.2% F.S | |||||
Response time | ≤10ms (10%~90% sudden load, input voltage fluctuation within ±5%) | |||||
Switching time | ≤10mS (+90%~-90% switching, input voltage fluctuation within ±5%) | |||||
Communication interface | RS485 (standard), CAN (optional), Ethernet (optional) | |||||
Noise | ≤65dB | |||||
Ambient temperature | 0℃~45℃ |
Zhipinhui After-Sales Policy:
*After-Sales Hotline: +864008166687
1. Our company has assembled a team of experienced field engineers and senior technicians to promptly respond
to any equipment issues and provide after-sales maintenance.
2. Within China, within one week of new product delivery, our after-sales technical staff will install the equipment and
provide after-sales training at the customer's location, using the contact information and address provided by the customer.
3. All complaints related to product quality will be responded to within one hour. Within 3-5 hours within the province,
and within 24-48 hours outside the province, we will arrive at the customer's site,
determine the appropriate action based on the complaint, and provide after-sales repairs. (Domestic)
4. For international travel, our company can also arrange for an after-sales engineer to visit you for installation and
commissioning. Please discuss any travel and catering issues in advance.
We also provide video installation guides for you to choose from, providing you with a comprehensive and multi-faceted solution.
5. Any material costs related to product quality during the warranty period will be borne by our company.
6. During the warranty period, we will provide free repairs due to improper use or environmental factors.
The materials and accessories used for repairs will be charged at cost only.