Re: Over Saturation?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "gtyler" <gtyler-at-drummond-dot-org.za> 

Not too much of a reflection on you, any people involved in electronic
design don't understand this one either! Often people ask "how much can
I load it before it will will saturate?" or something similar, but
increasing the load actually moves a transformer further from
saturation. Increasing the supply voltage or reducing the frequency
causes saturation as it is the volt-second product that is the critical
issue.

The formula n/v =1/ 4.44BFA tells you what the flux density is.(B)

F= frequecy
a= Area of the core in Metres
n/v = turns per volt

George Tyler


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, January 28, 2004 1:52 AM
Subject: Re: Over Saturation?


 > Original poster: "Hydrogen18" <hydrogen18-at-hydrogen18-dot-com>
 >
 > simplest way I can think of over saturation is as excess magnetising
of the
 > core. Air cores will not saturate no matter how hard you try. Ferrous
ones
 > do.
 > ----- Original Message -----
 > From: "Tesla list" <tesla-at-pupman-dot-com>
 > To: <tesla-at-pupman-dot-com>
 > Sent: Tuesday, January 27, 2004 8:52 AM
 > Subject: Over Saturation?
 >
 >
 >  > Original poster: "Randy & Lori" <rburney6-at-comcast-dot-net>
 >  >
 >  > Can someone explain Saturation and Over Saturation as it pertains
to
 >  > Transformers and Inductors?  I know the term and I have a clue, but
how do
 >  > you know?  Why does my Variac (powered up) give me 0 volts
difference of
 >  > potential when an ohm meter tells me 0 ohms?  I don't need a lesson
on how
 >  > my meter reads in DC, I know it's the AC but how?  I even taught
Basic
 >  > electronics for three years in the military, but this one has
always
 > eluded me.
 >  >
 >  > Randy
 >  > Savannah, GA
 >  >
 >  >
 >
 >
 >