Availability: | |
---|---|
Part 4 GMU series mobile ground power unit
1. General Description
The GMU series Ground Multi-functional Unit for Aircraft is specially designed to simultaneously provide air-conditioning and electrical power or high pressure air. The unit can satisfy both working and maintenance demands of the system when the aircraft is parked on the airfield.
Electrical Power
The unit can simultaneously or separately provide alternating current with 400Hz and 115V, or direct current with 28.5V DC for aircraft on the airfield. It can be used for ground maintenance or jet start of the aircraft.
Air supply of the Air-Condition
● To ensure the comfortable environment for passengers, it can provide ventilation (cooling or warm air) for the aircraft when it is parked on the airfield.
● To provide the comfortable fresh air for maintenance man on the plane when the aircraft is being maintained on the airfield.
High Pressure air
The unit can provide the high pressure air, which can be used to start the jet engine.
2. Specification
Function | Specifications | GMU2500D | GMU100-60 | GMU100-90 | GMU215-90 |
air condition parameter | Rated flow kg/h | 2500 | 2700 | 2700 | 5500 |
Rated pressure kPa | ≥8 | 5~50 | 5~50 | 2. 5~7 | |
Temperature ℃ | 5~60 | 5~50 | 5~50 | 2~60 | |
High pressure air parameter | Flow PPM | 100 | 100 | 100 | 200 |
Pressure Psig | 41 | 45 | 45 | 50 | |
Temperature ℃ | 200±10 | 200±10 | 200±10 | 205±10 | |
Alternating current | Voltage V/ | 115/400 | 115/400 | 115/400 | 115/400 |
Capacitance kVA | 90 | 60 | 90 | 90 | |
Direct | Voltage V | 28. 5 | 28. 5 | 28. 5 | 28. 5 |
Capacitance A | 600 | 400 | 800(two routes | 800 |
3. Characteristic
Compared with the traditional ground ensuring equipments, the Multi-functional unit owns prominent advantages as follows:
● Higher Integration
It gathers electrical power and air condition and high pressure air together and achieves one cart with more functions.
● Higher controllable precision
The quality of power supply can absolutely satisfy the requirement of the civil aviation. The air temperature of air-condition can be self-regulation according to the initialization on the control panel.
● Better applicability
It is applicable to many types of the aircrafts.
● Better flexibility
The less figure dimension and the configurable characteristic of integrative proper motion make this ground equipment greatly reduce the area it occupies and the rotational workload. All of these can improve the economic performance of ground ensuring.
● Lower maintenance charge
Compared with the traditional ensuring equipments, the Multi-functional unit contains less total parts and wastes less fuel.
● Convenient manipulation
The Multi-functional unit is auto control. The control system can ensure this cart startup steadily and work reliably, and it has the device of mutual lock and the function of preventing error operations. All of operations can be realized by only one operator.