Test equipment for aircraft power simulation, avionics and 400 Hz applications
AC/DC test equipment for avionics, onboard electronics, generators, converters, battery and backup systems, DC components, frequency tests, 4-quadrant AC/DC tests with ZGX and safety-critical systems in aerospace and defense applications.
Aircraft power simulation with AC source, DC bus and load simulation
Stable, reproducible and dynamic test conditions for safety-critical systems
Aerospace and defense applications place high demands on electrical test systems. Avionics, onboard electronics, converters, generators, batteries, actuators and safety-critical systems must be tested under stable, dynamic and often standards-oriented conditions.
From 400 Hz networks to DC aircraft power systems
Typical tests include 400 Hz aircraft power simulation, AC grid tests with variable frequency, 28 VDC networks, 270 VDC and 540 VDC applications, load steps, voltage dips, power sequencing and protection functions.
From individual instruments to integrated test benches
ET System combines AC and DC power supplies, electronic loads, bidirectional AC/DC systems such as ZGX, multi-channel solutions, battery simulators, measurement modules and customized system integration into suitable laboratory, development and production test benches.
Aerospace & defense test equipment for aircraft power simulation, avionics and power electronics
The following test tasks reflect typical requirements from aerospace, defense and ground support projects.
400 Hz aircraft power simulation
Aircraft and military supply systems are reproduced with defined voltage and frequency. AC sources provide stable sine waves, variable frequencies and defined grid events for reproducible tests.
DC power network simulation
Electronic systems are supplied with 12 V, 24 V, 28 V, 48 V, 270 VDC, 540 VDC or higher DC voltages. Load steps, voltage dips and protection functions show whether the DUT remains stable.
Avionics and electronics supply
Avionics, communication, navigation, controllers, actuators and sensors require a clean and stable supply. Multi-channel DC sources and modular measurement systems reproduce multiple supply rails.
Battery and backup system testing
Charge, discharge, cycling and backup tests validate capacity, behavior during load changes, protection functions and availability. Bidirectional systems enable source-sink operation with regeneration.
Power Control Unit Testing
PCU tests include input/output characteristics, start and shutdown sequences, efficiency, fault detection, remote switch signals and redundancy logic for satellite and power management systems.
AC/DC and DC/DC converters
Input conditions, output behavior, efficiency, short circuit, over/undervoltage, surge, short interruptions, frequency modulation and dynamic response are tested under controlled conditions. ZGX supports bidirectional AC/DC operating modes, 4-quadrant tests and regenerative test setups.
Power Distribution Unit Tests
PDUs, busbars, relays, protection modules and distribution systems are tested for start/stop behavior, multi-channel loads, step loads, endurance cycles as well as overcurrent and short-circuit protection.
Wire Harness & Connector Tests
Wire harnesses and connectors are tested for short interruptions, momentary short circuits, temperature rise, aging, current pulses and contact resistance.
Servo Motor & MCU Tests
Motor controllers are tested at different battery and SOC states. The test systems must safely handle inrush current, regenerative energy, braking processes and voltage stability.
N75500 and AC sources for 400 Hz, avionics and frequency tests
Programmable AC power supplies and regenerative grid simulators are suitable for 400 Hz and avionics applications. They can simulate 115/230 VAC aircraft power systems, variable frequencies, grid events, frequency deviations and AC input conditions for converters, generators, avionics and ground support systems.
ZGX for 4-quadrant AC/DC tests, converters, generators and UPS testing
ZGX is suitable as a flexible bidirectional AC/DC solution for demanding test benches where energy flow in both directions, grid simulation, regenerative load cases and dynamic AC or DC operating modes are required. It enables converters, generators, UPS systems, aircraft power components and high-power electronic subsystems to be tested under realistic conditions.
N35500 for battery, PCU, DC bus and high-power DC testing
The N35500 series combines a programmable DC source and regenerative electronic load in one system. It is suitable for DC aircraft power systems, battery pack simulation, PCU tests, generator and converter tests, backup systems, motor controllers and applications with changing energy flow.
Products for aerospace and defense test benches
Selection of relevant product series for AC aircraft power simulation, DC networks, PCU and converter testing, battery/backup tests, ZGX 4Q AC/DC test benches, load simulation, multi-channel supply and HIL system integration.
EAC-S
Programmable AC power supply for avionics, standards-oriented, frequency and EMC-related tests.
EAC-3S
Three-phase AC power supply for aircraft power simulation, frequency tests and robust test benches.
N75500
Regenerative AC/DC grid simulator for AC input conditions, variable frequencies and ground support tests.
ZGX
4-quadrant AC/DC source-sink system for converters, generators, UPS, aircraft power and regenerative test benches.
N35500
Source-sink system for battery pack, PCU, DC bus, motor controller and backup testing.
N38300
Wide-range DC power supply for high-power supply, DC networks and power modules.
N36200
Programmable DC source for onboard electronics, wire harness testing, current pulses, aging and thermal balance tests.
N39400
Multi-channel DC power supply for avionics, satellite subsystems and multiple supply rails.
N9000
Modular platform for cell, temperature, fault and signal simulation in PCU, BMS and HIL tests.
N69200
High-power electronic DC load for PDU, AC/DC, DC/DC, generator and load simulation tests.
Which solution fits which test task?
The table provides quick guidance. Final system design depends on power network type, power, voltage, current, dynamics, interfaces, safety concept and standards requirements.
| Test task | Recommended solution | Benefit |
|---|---|---|
| 400 Hz avionics test | EAC-S / EAC-3S / ASR / N75500 / ZGX | Simulate frequency and voltage in a controlled way and reproducibly test aircraft power and frequency deviations. |
| AC grid test with variable frequency | AC source, ZGX or grid simulator | Reproduce 115/230 VAC supply, frequency variation, grid events and dynamic input conditions. |
| Generator, converter and UPS testing | ZGX, N75500, N35500, N69200 | Test 4-quadrant AC/DC operation, energy flows, regeneration, dynamic load cases and grid behavior. |
| DC power network simulation | LAB/SMP, LAB/HP, N36200, N38300, N35500 | Test 12/24/28/48 V profiles as well as 270/540 VDC applications with load steps and voltage dips. |
| Battery, backup and UPS test | N35500, N35100, DC loads, software | Efficiently test charge/discharge profiles, cycles, capacity, regeneration and protection functions. |
| PCU and power management test | N35500, N9000, NXI, measurement modules | Battery pack, cell, signal, temperature and I/O simulation for control strategies and HIL tests. |
| AC/DC and DC/DC converters | ZGX, N75500, N38300, N35100, N69200, N61100 | Test input and output characteristics, protection functions, efficiency, short circuit, surge and dynamic response. |
| PDU and distribution system test | N75500, N35500, N69200, N61100 | Validate multi-channel loads, step loads, cyclic loading, protection functions and power distribution. |
| Wire Harness & Connector Test | N36200, transient measurement, temperature modules | Reproducibly capture momentary interruption, short circuit, current pulses, aging and temperature rise. |
| Thermal balance / space environment | N39400, N36200, N36100, NXI temperature measurement | Implement many heating and supply channels, long-term tests, remote control and stable supply in the test bench. |
| Customized test bench | System integration | Complete solution with cabinet, safety, software, interfaces, automation and documentation. |
From power network requirement to integrated test system
A clearly defined test setup reduces integration effort, increases reproducibility and simplifies later automation as well as standards- and compliance-oriented tests.
Configure an aerospace or defense test bench
Tell us your power network type, frequency, voltage, current, power, standards requirements, dynamics, interfaces and safety requirements. ET System supports you in selecting the right test equipment up to a fully integrated system solution.