While on the ground, the aircraft cannot use power from the 50Hz/60Hz grid. The aircraft must use 400Hz power supplied from the ground power unit (Ground power unit) to supply the loads and guidance system by a frequency converter that changes from 380V/50Hz to 400Hz, aircraft voltage 200V/208V/115V.
The frequency converter can be an Outdoor type installed outdoors to meet harsh requirements or an Indoor type installed indoors, under the walkway leading to the aircraft. Indoor frequency converters can also provide maintenance for aircraft, aviation equipment, and avionics equipment.
400Hz variable frequency product brochure
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Frequency converters can be single-phase or 3-phase, with the function of converting the frequency from 50Hz or 60Hz mains power to 60Hz or 50Hz or 400Hz (ground power supply for aircraft and airports) and vice versa for some special requirements with standard sinusoidal output voltage and frequency stability number/voltage. Frequency converters can also change voltage, but its main purpose and function is still frequency conversion and main application in ground power supplies of Airports, power supplies for shipbuilding (Shipyards) and factories with imported equipment with off-grid frequencies.
Brochure details about products variable frequency 400Hz |
The frequency converter has an outdoor type that meets harsh weather requirements and can be used for military airports as well as civil airports. The compact transducers can be mounted to the lower truss of passenger loading bridges, can be suspended below walkways, or configured vertically for installation in a convenient location near aircraft parking areas. We also have indoor versions of the frequency converters for use in maintenance hangars, avionics and simulation applications
The main benefit of using this frequency converter is energy saving. The ground power supply uses a 400Hz frequency converter that can be turned on when power is needed from the 50Hz ground grid, meaning there is no need to keep running the aircraft engine and on-board generator (APU). Therefore, the 400Hz frequency converter minimizes noise (because the aircraft engine does not run), reduces environmental pollution, fuel consumption and reduces maintenance of the generator and batteries on the aircraft.
The frequency converter can be single-phase or 3-phase, with the function of converting the mains frequency source from 50Hz/60Hz to 400Hz for aircraft, aviation equipment, aircraft navigation systems, radar systems, telecommunications systems....
We can supply frequency converters in two types of configurations: vertical or horizontal, either permanently installed or placed in a moving trailer.
to the aircraft from the 380V/50Hz mains (also called power supply ground- Ground Power Unit).
