Re: Rebuilding an OBIT

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

Original poster: "R.E.Burnett by way of Terry Fritz <twftesla-at-uswest-dot-net>" <R.E.Burnett-at-newcastle.ac.uk>


Hi Jochen, all,

RB>> TRANSFORMERS DO NOT SATURATE DUE TO TOO MUCH CURRENT BEING DRAWN !

JK> Then how come that you need bigger cores for higer power? Why not
JK> just thicker wire? Sorry - have to disagree.

A bigger core helps in a number of ways:

1. Increased core cross-sectional-area allows less turns to be used for
   the same voltages at both windings. (More volts/turn.)  This reduces
   resistive losses.

2. Increased winding window allows thicker wire to be used.   Also
   reducing resistive losses.

3. A larger core may also increase coupling and improve regulation ???

                                                        Cheers,

                                                        -Richie,