'S400-A'     Bridge-Mounted Solid-State GPU

The S400-A is a compact solid-state GPU designed to deliver consistent 400Hz power.
It integrates a solid-state ground power unit and the AEME S25 25-meter cable coiling device into an all-in-one system, suitable for boarding bridge installations. The S400-A has been reliably operating at numerous airports across the Asia-Pacific region and has earned recognition as a proven, market-trusted solution.

Power assurance when it matters most  
The S400-A solid-state power unit integrates advanced technologies such as LVRTech™ (low-voltage ride-through), space vector pulse width modulation (SVPWM), voltage decoupling control, and dynamic voltage compensation. These features ensure stable voltage output and reliable power delivery even under unbalanced load conditions.

LVRTech™: What It Is and How It Works
LVRTech™ is AEME’s independently developed voltage stability solution designed to withstand grid voltage dips and interruptions. It significantly enhances the reliability of aircraft power supply systems. Even under a zero-voltage condition, the system remains stable and operational for up to 2 seconds (full 90kW load)—outperforming conventional solutions. This not only protects connected equipment, but also offers a critical window for maintenance intervention.

The AEME GSE S-Power series also includes other options: S400 floor-mounted solid-state GPU and S400 towed solid-state GPU.

Modular, smart, and safe 

• Flexible Installation & Easy Maintenance
  Compact, modular architecture enables flexible deployment and simplifies maintenance and operations.
• Comprehensive Protection
  Includes over/under voltage, overcurrent, and frequency protections to ensure safe and reliable operation.
• Cloud-Based Management
  Connected to a cloud platform for digital monitoring, full-process diagnostics, and precise fault detection, enhancing overall operational efficiency.