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Truck or Trolley mounted
Mil Standard product from Nextek
Burq-90 Ground Power Unit 90 KVA
Burq-90 Ground Power Unit (GPU) is a field proven Power Source for the aircraft startup and its maintenance activities. Customization is offered for aircraft power carts/ trolley or a vehicle mounted system. This aviation GPU employs various safeties and protections to be used with the military aircraft. These portable GPU for aircraft underwent a rigorous qualification program under Aerospace and military standards.
- Manual and automatic Safeties of Military and Aerospace standards.
- Rugged and Maintenance friendly features matured through field operations.
- Detailed publications for Operations, Maintenance and Parts Illustrations with 10 years’ support for all parts.
- 6-8 hours’ operations with full load.
- MIL-STD-704E Compliant Marathon Alternator.
- Vibration isolation and lifting hooks for Engine, Alternator and TRU.
- Metallic soundproof for noise suppression.
- Separate cabin for Transformer Rectifier Unit (TRU).
- SAE-3 Coupling between engine and alternator.
- 56VDC for Chinese aircraft, auto changeover to 28VDC.
- Connectors’ stowage in sockets.
- 360 degrees’ adjustable spotlights/ flood lights.
Specifications
Safeties and precaution
Gauges & Instruments
Specifications
Voltage | 3 phase 115/200 V | AC power cable | 115/200 VAC, MS25487 Conn |
Frequency | 400 Hz | 56/28 VDC power cable | 56/28 VDC (800 Amp Cont and 2400 Amp peak), Chinese Circular Connector |
Rated load capacity | 260 Amps | Power Cables’ length | 33 feet each |
Power factor | 0.8 | Engine | Cummins 6BTA5.9 |
Voltage regulation | <0.5% for balanced load, up to 30% unbalanced load | Alternator | Marathon USA |
Voltage recovery | ∆U <8% and rec. time <10 ms at 100% load change | Weight | 2,700 kg |
Phase angle symmetry | 120° ± 1° for balanced load, 120° ± 2° for 30% unbalanced load | Fuel tank capacity | 06 to 08 hrs operation at full load |
DC Voltage | 28 and 56 VDC | Accessories | Dry chemical fire extinguisher. Tool kit |
Load capacity | 28 VDC, 800Amps, 1200 Amps for 30 sec, 1800 Amps for 10 sec, 2100 Amps for 5 sec, 2400 Amps for 2 Sec | ||
Safeties and precaution
- Over and under protections for the load (both AC & DC) and if frequency is varied.
- Manual emergency stop.
- Auto cutoff on low oil pressure, temperature of coolant and the engine.
- Intake air restriction indication and alarm
- Auto shut down in 30 sec of idle running when stopped.
- Can be switched safely between IDLE and Run modes.
- Cable stowage unit with connectors’ stowing socket and safety for inadvertent vehicle movement.
- RPM limit safety.
- Battery isolator switch with removable key.
- Minimum coolant temperature set to go from Idle to Run mode. (By pass possible)
- Push Type emergency stop switch.
- Safety interlocks to prevent vehicle’s starting until GPU is shut down and all power cables and adopters/connectors are properly stowed in appropriate places.
Gauges & Instruments
Generator Engine Section
- Engine battery charging ammeter
- Electronic Oil pressure gauge
- Electronic Temperature gauge
- Digital Hour meter (will operate only when GPU engine will be in operation)
- Electronic RPM Meter
- Control panel illumination light with switch
- Start/Stop switch with ignition key
- Fuel tank gauge, Electric direct reading with low fuel light indicator
AC Supply Fault Indications
- Under/Over voltage
- Under/Over frequency
- Overload
AC Section
- Voltmeter
- Ammeter
- Frequency meter
- AC supply OFF/RESET push button
- AC supply “ON” push button
- Interlock Bypass switch
- Voltage Phase Selection Switch
DC Section
- Digital Colored
- Touch screen Interface adjustments and displays
- Output ON/OFF Switches
- Manual adjustment knobs for Starting Current Limits and Voltage Adjustment
- 56VDC for Chinese origin changeover to 28VDC
