G5.RLD Versatile DC Electronic Load
The G5.RLD series are unidirectional regenerative sinks that 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.
Key Facts
Technology
- Technologically advanced, fast switching, compact 19-inch power supplies
- High control dynamics in the 100…200 μs range – even at higher power levels up to 5000+ kW
- Exceptional accuracy with additional high-resolution current measurement range
- Wide current-voltage range with an autoranging factor 3
- CV, CC, CP, CR, and Ri/Gi-Sim control modes
- Regenerative and highly efficient, resulting in a significant reduction of energy consumption and heat dissipation
System Capability
- Modular and easily scalable systems
- Parallel, series, and mixed operation with a digital high-speed bus
- Simple multi-unit configuration with the operating software
- Easy rack mounting
- Liquid cooled systems in IP54 available
- 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
System Control
- Operating software, extended analysis, parameterization options, and calibration
- Powerful application programming interfaces (APIs)
Applications and Features
The high accuracy and dynamics of the G5.RLD series, as well as the ability to easily change between different multi-unit 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 behavior for a special customer application.
Simplified and safe operation can be provided by pre-programmed overvoltage protection and digital fuses with immediate and I2t triggering. Different protection levels for different DUTs can be either programmed by the user’s automation test system via various interfaces or activated manually by digital input signals or even more conveniently wired to different switch positions.
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 to the fuel cell. The possibility for application-specific settings avoids overshoot and reverse currents into the fuel cell stack.
Modular and Easily Scalable Systems
The output of an individual power supply is in the range from 0…9 kW to 0…5000+ kW, up to 3000 VDC. The advantageous modularity of REGATRON power supply solutions allows the system to be easily adapted to ever-changing test requirements. It is possible to reconfigure between parallel, series, and mixed operation. Moreover, the system can be expanded with additional power supply units or may be split into smaller units.
Whether for single devices or powerful multi-device systems, REGATRON also offers turn-key cabinet solutions or project-specific system integration according to customer specifications.
Therefore, the purchase of a REGATRON power supply is a solid investment for the future.
Characteristics and Features in the Basic Scope of the G5.RLD Series
Control Modes
CV constant voltage
CC constant current
CP constant power
CR constant resistance
Ri internal resistance simulation in CV
Gi internal conductance simulation in CC
G5.Control over Ethernet or USB
G5.Control allows complete and easy control of the power supply unit or entire master slave system and also offers a whole range of service functions. In addition to basic control, configuration and update functions, G5.Control has a powerful integrated 8-channel digital scope . The high-resolution real-time display of numerous internal system signals allows the engineer to optimize the overall system in a targeted manner. Different application specific settings of parameters for single devices or master slave systems can be saved on the devices and either recalled by G5.Control, an API or CAN message or digital I/O signals. Firmware updates can be carried out quickly and easily for individual units as well as for master slave systems with a single command. When handling support cases concerning the application of the power supplies, the built-in diagnostic functions help to quickly identify the problem.
API .NET over Ethernet or USB
.NET programming, e.g., by LabView, Python, Matlab
WebAPI (REST) over Ethernet or USB
Interface via the optional HMI or RCU
I/O Port
The I/O interface features analog and digital signals used for set and actual values or operating states. Integrated into the user’s control system it is possible to set dynamically changing limits, to use enable signals, or trigger in or outputs. The possibility to activate up to 4 user defined parameter sets using digital inputs means that the system can be adapted to different EUTs. For example, predefined digital fuses and voltage limits can be set.
Grid Connection
The wide band AC input accepts all common AC grid systems and has an active power factor correction.
- AC Grid 380…480 VAC ±10% at 50/60 Hz
- PF 0.99
- Efficiency 94…95%, depending on model
Device Types
| Single-Unit 9 - 18 kW | 4 U | Voltage [V] | Power [kW] | Current [A] | Order Code |
|---|---|---|---|---|
 |
*0…80 | 9 | -338…0 | G5.RLD.9.80.338 |
| *0…80 | 18 | -676…0 | G5.RLD.18.80.676 | |
| 0…160 | 18 | -338…0 | G5.RLD.18.160.338 | |
| 0…500 | 9 | -54…0 | G5.RLD.9.500.54 | |
| 0…500 | 18 | -108…0 | G5.RLD.18.500.108 | |
| 0…1000 | 18 | -54…0 | G5.RLD.18.1000.54 |
| Single-Unit 27 - 36 kW | 7 U | Voltage [V] | Power [kW] | Current [A] | Order Code |
|---|---|---|---|---|
 |
*0…80 | 27 | -1014…0 | G5.RLD.27.80.1014 |
| *0…80 | 36 | -1352…0 | G5.RLD.36.80.1352 | |
| 0…160 | 36 | -676…0 | G5.RLD.36.160.676 | |
| 0…240 | 27 | -338…0 | G5.RLD.27.240.338 | |
| 0…320 | 36 | -338…0 | G5.RLD.36.320.338 | |
| 0…500 | 27 | -162…0 | G5.RLD.27.500.162 | |
| 0…500 | 36 | -216…0 | G5.RLD.36.500.216 | |
| 0…1000 | 36 | -108…0 | G5.RLD.36.1000.108 | |
| 0…1500 | 27 | -54…0 | G5.RLD.27.1500.54 |
| Single-Unit 45 - 54 kW | 10 U | Voltage [V] | Power [W] | Current [A] | Order Code |
|---|---|---|---|---|
 |
*0…80 | 45 | -1690…0 | G5.RLD.45.80.1690 |
| *0…80 | 54 | -2028…0 | G5.RLD.54.80.2028 | |
| 0…160 | 54 | -1014…0 | G5.RLD.54.160.1014 | |
| 0…240 | 54 | -676…0 | G5.RLD.54.240.676 | |
| 0…500 | 45 | -270…0 | G5.RLD.45.500.270 | |
| 0…500 | 54 | -324…0 | G5.RLD.54.500.324 | |
| 0…1000 | 54 | -162…0 | G5.RLD.54.1000.162 | |
| 0…1500 | 54 | -108…0 | G5.RLD.54.1500.108 |
order code example: G5.RLD.9.60.338
Benötigen Sie die richtige Energie-Lösung?
Wir helfen Ihnen dabei, die ideale Konfiguration zu finden. Kontaktieren Sie uns noch heute für kompetente, individuelle Unterstützung.