isolation transformer

[jennifer]

welp for a man u got a very sexey ass
but back on topic
that is what to happen
current=draw
then u go >i< over voltage
etc etc,the law work's 3 way's
i over e =r
e x r =
r divided any of the above =
then u carry on on to volt amps >va<
which = watt's which = current=reistanice,which = wire size +winding's+
go fig
btw u are now in engeering range

ed

****jenn slaps her rump****.... Its ALL girl honey.

[lilshawn]

well don't forget, you never achieve true 1:1 unless you know exactly what your load is (and have it never change) and what losses you will get from your transformer. You would then have to wind a custom transformer to account for all that.

in general though having +20% on the output is okay since they would have likely wound on some extra on the secondary to help minimise the loss from the transformer efficiency to begin with.

[ed12]

where i agree with u on the 20% range
this truly olny came ot after the over-sea's winder's got involved
hammond always stuck it it's 10% rule
which made the math easy
i have seen them run as high a 30% yes that large...
personally i would never use over 15% unless  i am in a pintch..
i take full load into account when i spec..no longer need the paper
i just spit out..so for a 120-120,i would expect output no-load
about 125-127..i am good at 127..as our power line's jump that high under no-load
and can and will drop to 98,that is a 20% +/- a few point's range
but at 127,i keep in the back of my mind the jump in power grid,and pray

ed

[lilshawn]

our power in the shop is really high (anywhere from 126-130 on any given day) pretty damn high actually)) but we are in an industrial area right next door to a newspaper printing facility... i'm thinking everybody runs high mainly because of them.

it makes for some interesting troubleshooting when something works fine in the shop but doesn't when you take it out and plug it in somewhere where their power runs ~110  .... WPC pinball driver board machines I'M LOOKING AT YOU!   

thank god for SMPS because linear power supplies are the poops.

[ed12]

yup pin's were a nightmare for that....
william's wpc sucked

ed