The Cinergia EL+ vAC ePlus series is an advanced range of regenerative, programmable electronic AC loads designed to accurately simulate the electrical behavior of grid loads and generators. Its bi-directional, regenerative hardware architecture allows energy to be fed back into the grid during test operation. This reduces both energy consumption and heat generation and ensures a particularly efficient and sustainable test environment. With 13 models ranging from 7.5 kW to 160 kW, the series covers a wide power range and can be easily integrated into automated test benches via Modbus/TCP or Ethernet.
The EL+ vAC ePlus series is versatile and has been designed for demanding test and development environments where flexible and precise AC loads are required. Typical fields of application are:
- Testing and simulation of AC sources, inverters and UPS systems
- Development and validation of charging infrastructure for electric vehicles
- Simulation of grid disturbances, voltage dips and transient load conditions
- Research in the fields of smart grids, power quality and power electronics
- Test bench applications in industrial and academic laboratories
Model description: EL+ 50 vAC
The EL+ 50 vAC is a robust and powerful model in the series and offers a rated power of 50 kW and a rated current of 73 A per phase (or 219 A three-channel), it is ideal for extensive testing and development tasks. Like all models in the series, the EL+ 50 vAC is also based on a 4-quadrant IGBT topology, which enables both energy consumption and feedback into the grid. With a power factor above 0.98, a distortion factor (THDi) below 3% and an efficiency of up to 92%, it meets the highest requirements for energy efficiency and control precision. It is operated locally via a 4.3″ touch display with integrated data acquisition and signal visualization or remotely via Ethernet (Modbus TCP). Extensive analog and digital I/O interfaces enable integration into external control systems or automated test sequences. With compact dimensions of approx. 770 × 450 × 1100 mm and a weight of around 200 kg, the system is space-saving, easy to maintain and designed for continuous operation in the laboratory. The master/slave function allows several units to be connected in parallel to increase the output power.
Product features of the series:
- Bidirectional, regenerative AC load with energy feedback to the grid
- 13 models available from 7.5 kW to 160 kW
- Power factor > 0.98 and THDi < 3 %
- High efficiency: ≥ 92 % for models from 40 kW
- Four operating modes: Current (CC), power (CP/CS), impedance (CZ) and steps mode
- Independent control of RMS current, phase angle, harmonics and transients per phase
- Up to 50 programmable harmonics per phase (20 of which are freely definable)
- 4.3″ touch display for local control, visualization and data logging
- Communication via Ethernet (Modbus-TCP), RS485 as well as analogue and digital I/O interfaces
- Parallel switchable via master/slave system via fibre optic cable
- CE-certified according to EN-50178, EN-62040-1, EN-62040-2 and RoHS-compliant
- Low noise level < 52 dB(A) thanks to efficient air cooling
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