Ground Power Unit 90kVA with DC and AC Output for Aircraft

Product Details
Brand Hosem
Serial Number A-G90HS
Country of Origin Fuzhou, China
Certificate ISO9001, CE, SASO, SONCAP, ISO8528:5
Payment & Shipping Terms
Price Quote USD35000.00-USD41000.00
Minimum Order 1 Set
Average Delivery Time Within 30days after get the firm order.
Payment Method T/T or L/C
Package Details Plastic Foam Packing
Ability to Supply 200 Set / Month

Ground Power Unit 90kVA with DC and AC Output for Aircraft

1. Main Performance and Technical Specification of 90kVA Ground Power Unit:

Genset Output 72kW / 90kVA
Output Type 1)      AC 400Hz, 3 Phase 200V, Generator Output
2)      DC 28.5V, supply by alternator via rectifier.
Output Specification AC 400Hz 3Phase, 200V 1)      Rate Output: 72kW / 90kVA;
2)      Power Factory: 0.8(Lagging);
3)      Rate Voltage: 200/115V, 3Phase;
4)      Rate Frequency: 400Hz;
5)      Rate Current: 259.8A;
6)      Over Load Running : 325A.
DC28.5V 1)    Rate Voltage: DC28.5V;
2)    Rate Current: 600A;
3)    Peak Current: 2000A;

1.2 Overall Dimension of Ground Power Unit:

Dimension of 90kVA Ground Power Unit

A. Overall Dimension: 5995 x 2550 x 2700 (mm)
B. Total Weight: 6440kg
C. Noise Level: ≤75dB(A) at 7 Meters distance, and in 1 Meter height
D. Brand of light truck: Isuzu

1.3 Specification of Diesel Engine:

Diesel Engine (Cummins Brand) Mode 6BTA5.9-G2 Max. Output 120kW
Cylinder No. 6 Cylinder in line Fuel Consumption 215 (g/kW.h)
Bore/Stroke 102/120 (mm) Displacement 5.9 (L)
Aspiration Turbocharger Compression Ratio 17.3 : 1
Starting Battery Voltage 24 V Steady Adjustment ≤1%
Rate Speed 1500R.P.M. Governor Electric

1.4 Specification of Alternator:

AC Alternator Model H260-30 Rate Voltage  115/200V
Frequency 400Hz Power Factor 0.8 (Lagging)
Rate Output 72kW Rate Current 259.8A
Insulation Class H Voltage Adjustment Range ±5%
Protection   IP23 Steady Voltage Adjustment ≤±1%
Efficiency 93% Excitation and Voltage Control Self-excitation, Brushless AVR
DC Rectifier Alternator Rate Voltage 28.5V Output Current 600A
Surge Current 2000A Voltage Adjustment Range 24~30V
Insulation Class H Voltage Control AVR
Excitation Self excitation, brushless    


400Hz Diesel Generator Design
400Hz Diesel Generator Design

1.5 Control Panel
Diesel engine and alternator control & protection by Smartgen brand controller model HGM7210 (the controller special for 400Hz diesel generator); DC voltage, Current measure will display and protect by APZ-72.

Control Panel of GPU with Deepsea DSE5310 Controller
Control Panel of GPU with Deepsea DSE5310 Controller

1.6 Trailer Frame
A. The bottom of trailer frame with holes for forklift.
B. Trailer tow bar with brake for parking.
C. The front wheels with turn function.

2. Technical Data of Ground Power Unit:
The specification is meet the standard of MIL-STD704E
2.1 Three Phase AC Power
2.1.1 Rate Voltage 200/115V three phase four wires
2.1.2 Rate Frequency: 400Hz
2.1.3 Rate Output: 90kVA
2.1.4 Power Factor: 0.8 Lagging
2.1.5 Rate Current: 259.8A
2.1.6 Excitation Method: Solid State Self-excitation

2.1.7 Voltage index    Voltage Adjust Ratio: 1% from no load to full load;    Voltage Modulation: ≤2.5V;    Under the balance load, the phase voltage shifting 120°±4°    Distortion Factor: ≤ 0.05    Wave Crest Factor: 1.31-1.51;    Phase Voltage Adjustment Range in No Load: 115±12V    Voltage Un-balance: 3V RMS Maximum    Transient State Voltage Recover Time Conform to MIL-STD 704E Chart 4 standard, phase voltage transient state peak voltage range: 80 - 180 V, Steady voltage range 108 - 118 V.    Inner wiring voltage drop compensate maximum 5% (adjustable).

2.1.8    Frequency standard    Frequency: 400Hz;    Steady Frequency Range: 393-407Hz;    Frequency Steady Time: according MIL-STD-704E chart 5.    Frequency Modulation: <4Hz

2.1.9    AC Protection System (The follow data can be adjusted)    Over Voltage Trip: Voltage exceed 126V (110% of rate voltage), delay 1-2seconds    Low Voltage Trip: Voltage Lower than 101V(88% of rate voltage), delay 7 seconds    Over Frequency: Frequency Exceed 430Hz, delay 2-5 seconds, trip    Low Frequency: Frequency lower 370Hz, delay 1-3 seconds, trip    Over Load: 125% of rate load for 5minutes, trip.

2.2 DC 28.5V Output Data
2.2.1 Ripple Wave: 1.5V RMS(Active Amount) @ 500A
2.2.2 Steady Voltage Range: 22-30V
2.2.3 Protection: When the voltage get to 32V(Factory setting), it will trip after 2seconds delay
2.2.4 No load voltage adjustment range: 20-30VDC
2.2.5 Transient Peak Voltage: According the MIL-STD-704E chart 9.

2.3 Safety System
2.3.1 Common Safety System    AC Cable interlock switch install in the E and F contact pin of connector, it will prevent power connection to air-craft, when incorrect connection of cable to aircraft is happened. There is a interlock bypass switch install in the GPU for testing mode.
(Note: we need user’s socket specification of connection cable to confirm this term.)    Emergency Stop Switch installs in the GPU for emergency stop the GPU, when it is necessary.

2.3.2 GPU Engine Protection    Over Speed Protection    Low Oil Pressure Shutdown    High Coolant Temperature Shutdown

3. 90kVA GPU Structure and Control Panel
The GPU is made up with trailer, soundproof diesel generator assembly, cable duct, electric system and other parts.
3.1 Basis Fuel Tank Capacity: 200Litres, it is enough for generator set continue run at least 8hours.
3.2 Soundproof canopy assembly: with low noise, weatherproof and keep warm function. The soundproof canopy with maintenance doors, exhaust windows, air inlet windows and control panel.
3.3 Control Panel: The control panel install in the side of the GPU, it is convenience for operation and control. The control panel include the follows operation switch, instruments and indicators:
3.3.1 Digital display three phase AC voltage, Current, Frequency, Output etc (Display in the HGM7210 controller); Digital display DC Voltage, Current (Display in APZ-72);
3.3.2 Digital display diesel engine coolant temperature, oil pressure, speed etc(display in HGM7210)
3.3.3 Operation control switch;
3.3.4 HGM7210 controller use for control diesel engine and A.C. alternator.
3.4 Lighting: The LED lights install inside the soundproof canopy for maintenance purpose; LED light install in the control panel for operation purpose. 

4. Accessories and Documents for Ground Power Unit
4.1 Repair Kit: Each diesel generator with one tool kit, include screw-driver, wrench, sleeve, multi-meter, tongs and packing box.
4.2 Documents: 
4.2.1 Diesel Engine Parts Catalogues
4.2.2 GPU Services Book and Troubleshoot Book
4.2.3 GPU Operation Book
4.2.4 Circuit Diagram and Wiring Diagram.


Get in Touch with us

Fill out more information, We will get back to you within 24 hours.

Factory Address

Shangang Industrial Area, Lianjiang Town, Fuzhou City, Fujian, China.

Request A Quote

Skype : +86-15959182792

WeChat : +86-15959182792

WhatsApp : +86-15959182792

Email :

Contact Us

Telephone : 86-5918-6397381

Business Phone : 86-1595-9182792

Work Time :8:30-18:00(Beijing time)

contact us