G5.RLD - Regenerative DC Electronic Load Series
REGATRON’s G5.RLD series are unidirectional regenerative sinks which can operate in CV, CC, CP, CR, and Ri-Sim control modes. It is universally applicable and therefore suitable as a sink for all industrial and scientific applications in laboratories as well as on test benches and production lines.
The modular and finely graded G5.RLD series is characterized by highly dynamic response times, adjustable filter time constants, and a wide current-voltage range with an auto-ranging factor 3. Optional software, programming, and communication interfaces as well as safety functions enable the G5.RLD loads to be optimally adapted to special customer application requirements.
Modular and Easy Scalable Systems
The output of an individual DC electronic load is in the range from 0...18 kW to 0...2000+ kW, up to 3000 VDC. The advantageous modularity of REGATRON DC electronic load solutions allows the system to be easily adapted to ever changing test requirements. Not only is it possible to reconfigure between parallel, series, and mixed operation, but also to expand the system with additional DC electronic load units or to split it into smaller units.
Applications and Features
The high accuracy and dynamics of the G5.RLD series, as well as the ability to easily change between different master-slave configurations, make this series the ideal DC electronic load solution for unidirectional sink R+D tasks and test bench applications such as testing of DC sources like e.g., fuel cell stacks or simulation of any kind of DC sink.
Various excellent features such as switchable filter time constants and adjustable controller settings as well as the integrated powerful 8-channel digital scope assist the user to quickly and easily achieve optimal system behaviour for a special customer application. The G5.RLD series also offers the possibility to store, edit, and recall any device configuration on board the DC electronic load.
Fuel Cell Testing
One prominent application of the G5.RLD series is fuel cell testing. The fuel cell stack typically behaves like a voltage source, whereas the fuel cell tester (G5.RLD) is operated in CC and CP mode.
Fuel cell stacks have to be protected against reverse currents feeding back into the fuel cell stack due to resulting performance degradation or even damage of the fuel cell. The G5.RLD series optionally features protection against this unwanted condition.
G5.RLD Series as P-HIL Power Amplifier
Power-hardware-in-the-loop (P-HIL) simulation integrates physical hardware and software models in a closed-loop simulation, offering versatile opportunities to investigate the behaviour of complex systems at different parameter settings.
A typical P-HIL setup includes a fast real-time computer driving a power amplifier. The G5.RLD series is best suited for this purpose due to its high dynamics and a fast analog port. Time analog-in to DSP: <50 μs
Grid Connection
The wide-band AC input accepts all common AC grid systems and has an active power factor correction.
System Capability
- Modular and easy scalable systems
- Parallel, series, and mixed operation with a digital high-speed bus
- Simple master-slave configuration with the operating software
- Easy rack mounting
- Optional safety features such as 2-channel safety interface and insulation monitoring
- Turn-key cabinet solutions or project-specific system integration according to customer specification