Aircraft Ground Power Units

Aircraft Ground Power Units (GPUs) are devices that supply power to aircraft while they are on the ground and their engines are not running. These units are essential for maintaining aircraft systems during maintenance, pre-flight preparation, or boarding.

Key Features of Ground Power Units:

Power Supply: GPUs provide electricity to power avionics, lighting, air conditioning, and other systems without relying on the aircraft's Auxiliary Power Unit (APU) or engines.

Types of GPUs:

Diesel or Gas-Powered GPUs: Mobile units powered by internal combustion engines.
Electric GPUs: Stationary units connected to the airport's electrical grid.
Hybrid GPUs: Combining fuel and electric power for efficiency.
Voltage:

Standard GPUs supply 28V DC or 115V/400Hz AC, which aligns with aircraft requirements.
Portability: GPUs can be mobile (on wheels) or fixed installations near gates and hangars.