Moderators: richierich, ua900, PanAm_DC10, hOMSaR

 
PrzemekB
Topic Author
Posts: 1
Joined: Thu Sep 01, 2016 12:23 pm

VFSG question

Thu Sep 01, 2016 12:28 pm

Hi,

Im reading electrical description of 787, especially starter/generator and I have got something like this:

""The kVA rating is over a load power factor range from 0,85 to 1.0 lagging and over the complete operational frequency range"

what does it mean?

Thanks in advance
 
aklrno
Posts: 1584
Joined: Sat Dec 04, 2010 11:18 pm

Re: VFSG question

Thu Sep 01, 2016 8:38 pm

Is it possible they meant "power factor" and not "load factor"? That would make more sense to me. You can google both terms.
 
rcair1
Posts: 1147
Joined: Wed Oct 28, 2009 8:39 pm

Re: VFSG question

Thu Sep 01, 2016 10:12 pm

PrzemekB wrote:
Hi,

Im reading electrical description of 787, especially starter/generator and I have got something like this:

""The kVA rating is over a load power factor range from 0,85 to 1.0 lagging and over the complete operational frequency range"

what does it mean?

Thanks in advance

It means they can deliver the rated kVA into a load with a lagging power factor from 0.85 to 1.0 and for any frequency in the operating range.

Power factor is related to the inductance of the load and the lag between the current and voltage wave form.
rcair1

Who is online

Users browsing this forum: IFlyVeryLittle and 41 guests

Popular Searches On Airliners.net

Top Photos of Last:   24 Hours  •  48 Hours  •  7 Days  •  30 Days  •  180 Days  •  365 Days  •  All Time

Military Aircraft Every type from fighters to helicopters from air forces around the globe

Classic Airliners Props and jets from the good old days

Flight Decks Views from inside the cockpit

Aircraft Cabins Passenger cabin shots showing seat arrangements as well as cargo aircraft interior

Cargo Aircraft Pictures of great freighter aircraft

Government Aircraft Aircraft flying government officials

Helicopters Our large helicopter section. Both military and civil versions

Blimps / Airships Everything from the Goodyear blimp to the Zeppelin

Night Photos Beautiful shots taken while the sun is below the horizon

Accidents Accident, incident and crash related photos

Air to Air Photos taken by airborne photographers of airborne aircraft

Special Paint Schemes Aircraft painted in beautiful and original liveries

Airport Overviews Airport overviews from the air or ground

Tails and Winglets Tail and Winglet closeups with beautiful airline logos