5V 100A secondary, 115V primary

[Supertech]

Any body has a transformer that has 5V 100A at the secondary and 115V at the
primary.

If you have one that you want to sell or know where to find one, please send
me email to

[email protected]

 

[Boris Mohar]

Any body has a transformer that has 5V 100A at the secondary and 115V at the
primary.

If you have one that you want to sell or know where to find one, please send
me email to

[email protected]

Get a microwave transformer and cut out the secondary. Than wind your own
secondary in place.

 

[John Woodgate]

I read in sci.electronics.design that Boris Mohar

Get a microwave transformer and cut out the secondary. Than wind your
own secondary in place.

A microwave transformer will not supply 500 W for more than a few
minutes even with fan cooling.

 

[mike]

I read in sci.electronics.design that Boris Mohar



A microwave transformer will not supply 500 W for more than a few
minutes even with fan cooling.

Wonder if you couldn't get there by winding a 5V secondary on a 5A
variac core? Would be easy to pull a turn or two off the primary to get
exactly where you want to be.

NitPick Alert...
One could assume that you mean 115.000VRMS 60Hz sine wave input
gives 5.000VRMS output into a resistive 100ARMS load.
But that's an odd set of numbers.
Some applications would have a range of line input voltages
and a range of allowable output voltages. And when you get to 100A,
things like secondary resistance begin to matter. And if you intended
to rectify it and get 100A out, there are may be some peak current and
core saturation issues...
I guess what I'm saying is that you haven't given enough information to
specify a transformer...but maybe it doesn't matter.
mike

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[Fred Bloggs]

Any body has a transformer that has 5V 100A at the secondary and 115V at the
primary.

If you have one that you want to sell or know where to find one, please send
me email to

Model 10-50A at http://www.3sind.com/11product/

 

[Supertech]

Model 10-50A at http://www.3sind.com/11product/

Thanks for the info. I really appreciate it.

Eugene

 

[Fred Bloggs]

A microwave transformer will not supply 500 W for more than a few
minutes even with fan cooling.

Maybe where you live, but not in the US-

 

[Adrian Tuddenham]

I read in sci.electronics.design that Boris Mohar


A microwave transformer will not supply 500 W for more than a few
minutes even with fan cooling.

A cheap and cheerful solution might be to get two of them and wind the
secondary through both.

 

[[email protected]]

Thanks for the info. I really appreciate it.

why not make one? its not hard, just a total pita.

MOTs will deliver 1kW+ for 15 minutes fan cooled before frying, put 2
in series and theyll run for ever more.


NT

 

[Fred Bloggs]

[...snip garbage from idiot limey who can't do a damned thing right...]

 

[Winfield Hill]

Supertech wrote...

Any body has a transformer that has 5V 100A at the secondary and
115V at the primary.

I'm not sure what you're after, but if you're going to make a 5V
100A dc supply with your transformer, you should know that there
are lots of compact 100A, 150A, 200A, plus some 300A industrial
surplus switching power supplies available at reasonable prices,
such as under $100. I even have a few extra such beasts.

 

[[email protected]]

[...snip garbage from idiot limey who can't do a damned thing

right...]

I see you snipped your own input on this.

NT