400 Hz GPU
400 Hz GPU
(OP)
I am electrical engineer working in an electromechanical contracting company.While analysing a recent tender for refurbishment works for a hangar, i found the equipment 400 hz ground power unit.
1.Can anyone enlighten me on the purpose of this equipment?
2.Is it a generator?
3.Please provide any web articles links if available
Regards,
Alan
1.Can anyone enlighten me on the purpose of this equipment?
2.Is it a generator?
3.Please provide any web articles links if available
Regards,
Alan





RE: 400 Hz GPU
http://www.aerospaceweb.org/question/electronics/q...
B.E.
RE: 400 Hz GPU
http://www.hobartgroundpower.com/
The typical GPU is a self-powered, self-driven generation system, but there are wall-powered devices that are essentially manually rollable carts with a power converter.
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RE: 400 Hz GPU
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RE: 400 Hz GPU
RE: 400 Hz GPU
What do you mean?
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RE: 400 Hz GPU
B.E.
RE: 400 Hz GPU
Depends on what they are bolted to! While a GPU is bolted on top of a wheeled cart, an APU is usually bolted to the inside of the airplane.
I wouldn't mix up the terms.
Alansam is most concerned with the support equipment at the hangar, so this is probably a GPU cart, for powering aircraft parked on the ramp.
STF
RE: 400 Hz GPU
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RE: 400 Hz GPU
RE: 400 Hz GPU
RE: 400 Hz GPU
Because you are reburbing the hangar, the presence of a fixed system might affect your engineering and bid.
RE: 400 Hz GPU
Yes phovnanian this is a fixed unit,namely axa 2200 series.The boq also shows a 28 v dc unit and this is a movable one.Any where this equipment is connected to?
RE: 400 Hz GPU
B.E.
RE: 400 Hz GPU
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RE: 400 Hz GPU
Don't know. For normal operations, a 747 only requires external 400 Hz 3 phase power.
This 28 Vdc cart is probably for some maintenance procedure. As such, the details of its connection would be specific to that procedure.
RE: 400 Hz GPU
check http://www.hobartgpu.com/Hobart%20PDF%20files/GPU%...
We have on our facility floor some GPU 400 series units. These type of carts may be plugged onto electrical net of hangars or general standard aviation facilities.
You avoid issues about batteries and provide stable 28 VDC to aircraft for ground test and maintenance checks.
FranAle