Modules used in Ground Power Unit
  
Prime Mover Diesel Engine
415 V, 3 phase, 50 Hz AC Alternator
Static Frequency Converter - SFC
Controls and Metering
Electrical Vehicle
Front Cabin and Rear Enclosure
Traction Batteries and SMPS Battery Charger
Transformer Rectifier Unit
  
 
 
     
 Products
     
  Trolley Mounted DC Ground Power Unit  
 
 
 

The DC Ground Power Unit is designed as compact, sturdy, airport vehicle type equipment for supplying electrical power for servicing and starting of 28V DC Aircraft ENGINE as per customer specification. The Unit is capable of supplying DC electrical power at 28 Volts nominal and rated for 400 amps DC continuous current and up to 1500 amps of peak starting current. The Unit is a toe trolley mounted, eco-friendly, low noise and easy to operate. The unit comprises the following major subassemblies:

 
 
Rotary Steering Toe Trolley with leaf spring & control panel.
Kirloskar HA694, air-cooled, turbo supercharged diesel engine
Crompton Greaves 415 V, 3 Phase aluminium body alternator
Transformer Rectifier Unit and controls with protection devices
 
     
  Technical Specification  
 
VEHICLE: - TOE TROLLEY
RATING: -
28.5V DC - 300 Amp continuous
1600 Amp peak for 5 sec.
PRIME MOVER:- Air Cooled Diesel Engine
MAKE:- Deutz / Kirloskar Oil Engine/ Equivalent
ALTERNATOR:- Brushless 3 Phase, 415V, 50/60Hz
MAKE:- Crompton Greaves/Meccalte/Equivalent
AVR:- Solid State
TRANSFORMER:- Rectifier Unit (T.R.U.)
MAKE:- Avish Aviation
TRANSFORMER:- 3 Phase Delta-Star, Step Down
RECTIFIRE:- Diode Rectifier
FILTER:- L-C Filter

OUTPUT CABLE:-
140 sq.mm 4 Core - 10 mtr Length
Complete with 3 Pin Nato Adaptor

PROTECTION & MONITORING:-
The protection & monitoring system is designed with Micro-controller based system for optimum performance.
TWO TYPES OF PROTECTIONS PROVIDED
 
1. ENGINE
  A. Low Oil Pressure - Shut down
B. High Cylinder Head Temperature - Shut down
C. V-Belt failure - Shut down
2. DC SYSTEM
 
A. U.V.:- Under Voltage As per BS3G - Trip & latch
B. O.V.:- Over Voltage As per BS3G - Trip & latch
C. O.L.:- Over Load As per BS3G - Trip & latch
MONITORING:-
ENGINE & OPERATING PANEL
ENGINE INSTRUMENTS:- Oil Pressure Gauge, Oil Temperature Gauge & Fuel Gauge.
DC INSTRUMENTS:- DC Volt Meter, AC Amp Meter & Micro Processor Fault Display
COLOUR:- Bright Yellow (Powder coated)
OTHER COLOURS AS PER CUSTOMER REQUIREMENT ARE AVAILABLE.
 
     
     
     
 
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