RE: Over Saturation?

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

Original poster: "Randy & Lori" <rburney6-at-comcast-dot-net> 

I knew there had to be some math in there somewhere.  So, as I
understand it, in most cases where I have read the term "Over Saturate",
they really mean that they are bringing the core out of Saturation?  If
voltage is increased, then current will obviously follow, and with
increased current comes increased magnetism, but saturation goes down?
I kept thing of "Saturation" as a term pertaining to magnetism; do I
have it backwards?  I really do appreciate the response, but until I get
the "Visualization", the math doesn't help.  You mentioned volt-second??

Randy
Savannah, GA

-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Wednesday, January 28, 2004 10:11 AM
To: tesla-at-pupman-dot-com
Subject: Re: Over Saturation?

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
  >  >
  >  >
  >
  >
  >