Ground Power Unit

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40 to 180 KVA (AC-DC) / 28.5 VDC / Battery Cart

Ground Support Equipment for aircraft Functioning similar to a standard diesel generator it supplies power to a parked aircraft on ground through 200 / 115V 400Hz AC and / or 28.5V DC Voltages.

This can be used for powering of various aircraft systems and also starting aircraft engines employing an electric starter mechanism.

Available in Towable Trailer mounted / Skid Mounted / Self propelled configurations.

AC – DC GPU Ground Support Equipment

Overview

  • Highly reliable Deutz / Cummins Equivalent diesel engines
  • Digital System – Micro controller based
  • Secure power supplies to aircraft
  • Operations through GUI touch screen
  • Total digital monitoring of engine and output parameters
  • Meets latest EPA norms
  • Walk Away – Protection and Control (Unattended Operation)
  • Low Noise level
  • Meets MIL and ARP Standards
  • MAK’s Remote Diagnosis and Monitoring System(Optional)

Technical Specifications

Rated Output: 40/ 90 / 140 / 180 KVA at 0.8 PF Lagging
Engine: Deutz / Cummins / Detroit Diesel / Equivalent diesel engine
Alternator: MAK / Equivalent brushless, 3 phase, constant voltage alternator with built in AVR.
Insulation: Class F / H

AC Output

Power: 40 / 90 / 140 / 180 KVA at 0.8 pf lagging, 3 phase 4 wire system
Voltage: 115V (Line to Neutral) and 200V (Line to Line)
Voltage unbalance: a. 1% at balanced load
b. Within 4% with 1/3rd load on one phase with two other phases unloaded.
Voltage regulation: ±1%
Voltage modulation: ±0.5%
Voltage transient: ±20% and ±1% of steady state value recovery within 150 milli seconds
Phase difference: 120 ±1.50°
Frequency: 400 Hz
Freq. regulation: ±1%
Freq. modulation: ±0.25%
Freq. transient: 382 to 417 Hz, ±1% of steady state value recovery within 2 seconds
Crest Factor: 1.41 ±0.07
Total harmonic: Within 2% content

Monitoring

Following parameters are displayed through GUI touch screen.

  • Engine Lube oil pressure
  • Engine Coolant temperature
  • Engine RPM
  • Fuel Level
  • Engine Hours run
  • Battery voltage
  • Output voltage
  • Output frequency
  • Load current

Protections

A. For Engine

  • Low lube oil pressure shutdown
  • High coolant temperature shutdown
  • Over speed shutdown
  • Low fuel shutdown
  • Charge fail (only indication)

B. For Output

  • Under voltage trip
  • Over voltage trip
  • Over load trip
  • Neutral open trip
  • Phase rotation trip
  • Under frequency shutdown
  • Over frequency shutdown

OTHER COMBINATIONS (Both on Diesel & A.C. Motor Driven)

  • 40 KVA AC or AC & DC
  • 60 KVA AC or AC & DC
  • 90 KVA AC or AC & DC
  • 140 KVA AC or AC & DC
  • 180 KVA AC or AC & DC

Note: Due to continuous development dimensions, layout, configuration and specifications are subject to change without notice.

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