E=2pi*f*N*a*B/1.414 213 562 373 0950 48801 6887242097 help

[The74namesofgod]

e =4.44 nfqa

how do i find B, and a... what would tell me the current. thanks


a is core cross sectional area...is the core the winding or the hole thing and how is it measured

B is peak magntic flux density how do i find this

please note i dont have a transformer i am trying to find out at some crazy high frequency how big a transformer would have to be for 20000 watts thanks again

is there more equation that will help me...

MODERATOR ACTION: Do not make so long name without spaces

 

[AdvaRes]

e=4.44

Hi,

Could you please write clearly the Equation of E ?

 

[The74namesofgod]

what is the value of e^2pi?

o E=2*pi*f*N*a*B/squre root of 2

E=4.44*f*N*a*B




E is volts of winding

N number of turns

f is frequency

sorrie about that ..

 

[AdvaRes]

e=4.44fnab

Ah yeah,
I think you are talking about the Boucherot formula.
In practice, the Material that u use for magnetic circuit is given by B in Tesla per Kilogram unit. So use this value. But you have to take into account the losses in you computation. The amout of loss is also a characteristic of the material.

 

[The74namesofgod]

e=2pi

how is the cross sectional area mesured

 

[AdvaRes]

e 1.414

S=Widding/B