Aircraft Ground Power Unit

Ground Power Unit (400Hz Diesel Generator) for Aircraft or Radar

The Ground Power Unit is a power supply device that supplies power to the aircraft when the aircraft is on the ground. There are usually two types of ground power unit with mobile system and fixed 400Hz diesel generator.

The electric power is required most of the time during aircraft ground operations. The Ground Power Unit can be produced by a motor-generator set, in which a dedicated 400Hz generator is driven by a prime mover motor to provide electrical power to the aircraft power outlet.

The common standard for ground power is three-phase 400Hz A.C. 200/115V, which is the same as the power provided by aircraft generators. On some occasions, most of the time in the main airport, electrical conversion devices near the entrance of the aircraft provide three-phase A.C. 200/115V power converted and obtained from the national grid.