REGATRON DC Power Supplies – the Perfect Tool for Intelligent and Regenerative Jobs!
REGATRON’s regenerative test systems for DC load simulation enable targeted development and testing of all types of DC power sources; take a Fuel Cell test system as an example: Fully programmable, highly dynamic,
a wide current-voltage range, additionally equipped with various safety functions to protect operators and hardware.
Key Points
- Real-time processing of the constant resistance (CR) calculation on-board of the power supply for high accuracy and fast dynamic response.
- Dynamic load simulation: REGATRON power supplies are capable of simulating dynamic load changes and dispose of fast transient responses by means of short controller cycle times and a switchable output capacitance.
- Ripple modulation for EIS: Electrochemical impedance spectroscopy provides insights into the details of the electrochemical reaction down to the level of ions with the proven precision and reliability of REGATRON devices.
- Programmable load behavior: By adjusting the controller characteristics, the current shape can be adapted to the process as desired. For example, a reverse current flow through a fuel cell stack can be avoided.
- Wide current-voltage range: REGATRON G5 devices offer an autoranging factor of 3. Thanks to the modular design, the current-voltage range can be further extended by parallel, series and mixed connection of several G5 devices.
- Regenerative & highly efficient: Obtain significant reduction of energy consumption, heat dissipation and support sustainability goals in R&D and production environments.
Description
A DC load bank is an essential testing and commissioning tool used to simulate electrical loads on direct current (DC) power sources such as batteries, uninterruptible power supplies (UPS), DC generators, chargers, DC / DC converters and fuel cells. By providing a controlled and measurable load, DC load banks enable performance verification, system validation, and preventive maintenance without the need to connect actual operational equipment to assess battery capacity, verify inverter outputs, and ensure proper load handling capabilities.
Application Example Fuel Cell Testing
A fuel cell stack typically behaves like a voltage source, whereas the fuel cell tester is operated in CC or CP mode. The characteristic curve of a fuel cell stack shows a very wide current-voltage range from ’open circuit’ operation to full load.
Fuel cell stacks have to be protected against reverse currents flowing back into the fuel cell stack, as this would result in performance degradation or even damage to the fuel cell. Therefore, application-specific settings shall avoid distinct overshoot and reverse currents into the fuel cell stack.
As an alternative to parameterisation, it would also be conceivable to use diodes to prevent reverse currents. The disadvantages of this solution are the additional installation, a considerable power loss and the limited dynamic characteristics of this element when the current is changing from forward to reverse direction
Why REGATRON Devices for DC Load Bank and Fuel Cell / Stack Testing
DC loading is best done with REGATRON load banks as they offer the ideal combination of precision, flexibility, safety, and efficiency for these applications. The versatile interface design, countless options for parameterizing safety limits, controllers and control variables, the modularity of the G5 system with regard to the expansion of power, voltage and current and, last but not least, the range of available application software – these are all powerful arguments in favour of REGATRON Power Supplies!
Based on the application example of the fuel cell testing, the ‘G5.Control’ operation, analysis and service software offers various excellent features as for example switchable filter time constants and adjustable controller settings as well as the integrated powerful 8-channel digital scope. These assist the user to quickly and easily achieve optimal system behavior as shown in the attached figure above. Further outstanding features of the modular G5.RLD device series are the possibility to connect devices in parallel, series and mixed to cover the high current-voltage ranges of fuel cell curves. The bidirectional G5.RSS also offers ripple modulation up to 10 kHz in both constant voltage and constant current operation and allows analysis of complete stacks with electrochemical impedance spectroscopy.
Suitable Products
G5.RLD Series
The fully regenerative G5.RLD series incorporates Regatron’s innovative advancements. It features high dynamics (50…100 µs), exceptional current and voltage accuracy, and CV / CC / CP / CR / Ri-Sim control modes. It includes optional interfaces and safety features, ensuring seamless integration into demanding laboratory and industrial environments. Applications include DC load banks and fuel cell testing.
- Power Range: 0…9 to 0…5000+ kW
- Voltage Range: 0…60 to 0…3000 VDC
G5.RSS Series
The G5.RSS series integrates Regatron’s cutting-edge technology in a compact, space-saving design. It features rapid transient response (50…100 µs), ripple modulation up to 10 kHz, and high-precision current and voltage regulation. Its switchable output capacitance ensures stability and maximum dynamic response in both CV and CC modes. Ideally suited for a wide range of demanding laboratory and industrial applications, including testing compliant with automotive and industry standards EIS, P-HIL, and more.
- Power Range: 0…9 to 0…5000+ kW
- Voltage Range: 0…60 to 0…3000 VDC
We Are Here to Support You
Experience our commitment to outstanding customer support at every stage — before, during, and after your purchase. Benefit from our complimentary consultation services from the very beginning to ensure the ideal solution for your needs.
For added flexibility, selected power supplies may also be available for rent. Please contact REGATRON to discuss your specific requirements and to check availability for your application.
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