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Static Ground Power Unit

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EFFETI designs and manufactures STATIC GPU (Ground Power Units) systems that can convert electrical power supplied by the normal distribution network into energy available to operate the on-board systems of aircrafts without the need for diesel engines.

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The advantages to this type of application can be summarized as:

  • Zero contaminant emissions
  • Ability to work both outside and inside the Hangar
  • Practically no noise input
  • Savings on the machine operating cost
  • Savings on maintenance (given the absence of the diesel engine)
  • Reduction in defects and increased profit for the system life (no rotating parts)

Static GPU:

  • Model ST400-MICRO-4,5
  • Model ST28-MICRO-600
  • Model ST400/28CTL-25
  • Model ST400-BS120

Power ratings available from 10kW to 20kW

INPUT – EXTERNAL POWER SUPPLY LINE GRID
VoltageThree Phase from 320Vac to 460Vac (standard 400Vac).
Frequency50/60Hz
Line power cable – Line 400Vac Three PhaseLength: 10 m with 125A 3pole+N+E industrial 125A 3poli+neutro + terra plug
Maximum continuous input current164A
Maximum continuous output current205A
Maximum block current575A
Nominal power110 kW
OUTPUT – AIRCRAFT POWER LINE – 28Vdc
Voltage28 Vdc Nominal power
Rated output current400 A
Available outputs availableN.1 x 28Vdc
Line power cable 28VdcLength: 10m double insulated, with MS25486 type connector
Power11,2 kW
Overload capacity800 A for 10 sec. 1200 A for 1 sec.
Voltage regulationfrom 20V to 35V
Output voltage ripple0,5V < 1,5V second MIL704F
OUTPUT – AIRCRAFT POWER LINE – 115/200Vac 400Hz ST28 – MICRO.400ST28 – MICRO.600
INPUT
Alimentazione da rete in ingresso al GPU
Voltage400V/230V Three Phase400V/230V Three Phase
Frequency50/60Hz50/60Hz
Line power cable 400Vac trifaseLength: :
5 m. with 125A 3pole+N+E industrial plug
Length: :
5 m. with 125A 3pole+N+E industrial plug
OUTPUT Power supply to the aircraft in output from the GPUVoltage28 Vdc Nominal28 Vdc Nominal
Available outputs availableN. 1 x 28VdcN. 1 x 28Vdc
Voltage regulationDa 20V a 35VDa 20V a 35V
Output voltage ripple0,5V < 1,5V powers expressed in accordance with MIL704F0,5V < 1,5V powers expressed in accordance with MIL704F
Rated output current400 A600 A
Rated power output11,2 kW16,8 kW
Overload capacity735 A for 10 sec. 850 A for 5 sec.1500 A for 10 sec. 2000 A for 1 sec.
Line power cable 28VdcLength:
5 m. double insulated, with MS25486 type connector
Lenght:
5 m.double insulated, with MS25486 type connector
DimensionLength: (L) 1450 mm with steer up1450 mm with steer up
Width (W)950 mm950 mm
Height (H)1000 mm1000 mm
Height max (cover open)1726 mm1726 mm
Weight215 Kg400 Kg