The EL+ vHF/DC ePlus series from CINERGIA has been specially developed for the requirements of modern avionics and aerospace test benches. It offers precise, bidirectional load simulation in the frequency range of 360-900 Hz and covers both AC and DC applications.
The series uses a regenerative architecture that allows energy consumed during testing to be regenerated rather than dissipated. This ensures lower operating costs, less heat generation and high energy efficiency. Typical areas of application are:
- Simulation of on-board power supplies with variable frequency (360-800 Hz)
- Testing and characterization of avionics generators and power converters
- Testing of DC on-board power supplies, power distributors and aircraft consumers
- Generation of harmonics, distortions and dynamic current profiles
- Simulation of mains faults, voltage dips and transient disturbances
Focus on the EL40+ vHF/DC variant
The EL40+ vHF/DC is the power-oriented high-end model in the series with a rated power of 40 kW. It was developed for test systems with high energy requirements - for example for aircraft generators, engine starters, power distribution systems and complex multi-channel test benches.
- AC (EL-HF): 52 A RMS per phase in 3-channel operation or 156 A RMS in 1-channel operation
- DC: ±40 A (3-channel) or ±120 A (1-channel)
- Frequency range: 360-900 Hz in HF mode
- Regenerative: Regeneration into the mains with efficiency > 90 %
With these performance data, the EL40+ offers an exceptional combination of power, precision and stability. It is designed for dynamic load profiles, high inrush currents and demanding tests in continuous operation - ideal for OEMs, research centers and system integrators in aviation technology.
Comparison with the other models
Within the series, the EL40+ represents the step into the high-performance class. It significantly outperforms the EL15+, EL20+ and EL30+ models in terms of power and performance, while retaining the same control logic, software environment and interface structure:
- EL15+ vHF/DC: 15 kW - compact model for basic tests and smaller generators
- EL20+ vHF/DC: 20 kW - standard model for medium-sized applications
- EL30+ vHF/DC: 27 kW - all-rounder for laboratory and development tests
- EL40+ vHF/DC: 40 kW - high-power model for demanding, energy-intensive tests
- EL50+ vHF/DC: 50 kW - maximum variant for system integration and large test benches
Compared to the EL30+, the EL40+ offers around 50% more power and significantly higher power reserves. This makes it ideal for avionics components with higher current consumption or for tests that require parallel power branches. At the same time, it remains modular, scalable and fully regenerative.
Product features of the series:
- High-frequency electronic load for avionics: 360-900 Hz
- Bidirectional & regenerative: Energy fed back into the grid
- Clean grid current: THDi < 3 % and power factor > 0.98 at rated power
- Power levels: 15-50 kW, combinable in master/slave mode
- AC/HF operating modes: current, power and impedance mode with freely adjustable cos φ
- DC operating modes: CV, CC, CP, CR; multi-channel capability with independent control
- Harmonic & distortions: up to 50. Harmonics freely programmable
- Fast dynamics: Rise times typ. < 2 ms; precise response to load changes
- Sequence and step mode: deterministic test sequences with µs time resolution
- Mains connection: 3×400 V AC +N+PE, 48-62 Hz
- HF voltage ranges (EL-HF): 35-277 Vrms ph-N or 35-480 Vrms ph-ph
- DC range: up to 750 V (HV option up to 800 V)
- Overload capacity: up to 200 % for short-term transients and load peaks
- Safety functions: emergency stop, interlock, overcurrent/overvoltage protection, watchdog
- Communication: 4.3″ touch display, digital/analog IOs, LAN Modbus-TCP, optional interfaces (RS485, CAN, RS232)
- Options: Battery and PV emulation, low-ripple mode, HV extension, anti-islanding
- Mechanics: approx. 770×450×1100 mm, weight around 190 kg (depending on model)
