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
     
  Self Propelled AC/ DC Ground Power Unit for MIG 21 (Bison)  
 
 
 

102 units are in operation with Indian Air force from 2009. This unit is currently being used to service and start two MIG 21 - Bison Upgrade aircraft. The unit is fitted with twin KAPA boxes. This unit uses a 63 kVA to 65 kVA, 415 V, 3phase, 60 Hz alternator coupled to an air cooled 6 cylinder Kirloskar HA694TC turbo supercharged engine operating at 1800 rpm. AC Output Power - Static Frequency Converter generating 40 kVA, 200 V, 3 phase, 400 Hz. DC output power - twin 24/48 V DC through KPA-6 boxes integrated into the GPU DC Output Power - 28 V DC, 300 A (continuous) / 1500 A (starting peak)

 
     
  Technical Specification  
 
VEHICLE: - SELF PROPELLED
RATING: - 28.5V DC - 200 Amp continuous (TWIN DC)
with KPA-6 Box 1300 Amp peak for starting.
115V(L-N), 200V(L-L), 400Hz, 3 phase
40Kva Static Frequency Converter (Twin Output)
PRIME MOVER:- Air Cooled Diesel Engine
MAKE:- Deutz / Kirloskar Oil Engine / Equivalent
ALTERNATOR:- AC 3 phase, 415V, 50/60HZ - Brushless
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:-
For DC:-
140 sq mm 4 core - 10 mtr length
Complete with SHARA250 Adaptor
For AC:-
50 sq mm 4 core + 2.5 sq mm 2 core - 10 mtr length
Complete with 6 pin Nato Adaptor
STATIC FREQUENCY CONVERTER (SFC)
RATING:- 40Kva
INPUT:- 3 phase, 415V, 50/60Hz
OUTPUT:- 3 phase 200V (L-L), 115V (L-N), 400Hz, p.f. 0.8 lag
LINE DROP COMPENSATION:- DSP based.
THD:- Less than 5%
WAVEFORM:- Sine Wave
BATTERY:- Traction Tubular Batteries for Electric Vehicle Traction Power
MOTOR:- DC Motor for traction
MOTOR CONTROLLER:- Curtis make
E.V. SPEED:- 8 TO 10 K.M.P.H.
PROTECTION & MONITORING:-
The protection & monitoring system is designed with Micro-controller based system for optimum performance.
TWO TYPES OF PROTECTIONS PROVIDED
 
1. ENGINE
  D. Low Oil Pressure - Shut down
E. High Cylinder Head Temperature - Shut down
F. V-Belt failure - Shut down
2. DC SYSTEM
 
D. U.V.:- Under Voltage As per BS3G - Trip & latch
E. O.V.:- Over Voltage As per BS3G - Trip & latch
F. 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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