/diy/ - Do It Yourself

>>1398212
Be less specific, there are not enough options for your needs.

>>1398212
A step down transformer is a step up transformer
Just connect it backwards

>>1398226
>nazi

>>1398227
Generally speaking yes, but not all transformers are designed for backfeed. The bigger the transformer the more this comes up.

CRTs have flyback transformers but those are for crazy-crackers voltages

Semi-related question:

Work has me retrofitting old industrial machines. Cool gig.

I remove old 220ac and 110ac step-downs all the time. Have a stack of them.

Anyone got any ideas on what type of power would come out if I hooked one of my spare transformers up to my solar generator+invertor? Serious question.

>>1398290
And run at high frequency.

Non inverter microwave ovens have something like 2kv transformers however they are not designed for high efficiancy and typically run into saturation.

>>1398314
Are these single phase or 3-phase transformers? What voltage does your inverter put out? What are the wattage ratings on the inverter and transformer?

>>1398389

The machines were made to run conventional and 110/92/208 rotophase. The two low legs branch off hit an odd transformer that is in place to clean uuo 110 (15+/-) and guarantee 110 comes out, then get dumbed down to 40something, 20something and 12 and 5 on the DC side.

The invertor I'm using is old, yellow and covered in grease. The manual when I got it said it does up to 400w continuous (110vac) and peaks around and I forget the amperage.

I try to not run it past 8a though I'd imagine it'll crap out around 15a. I've had it since before I was married and divorced, it's endeared itself to me as a rugged and reliable piece of equipment so I'm eager to let the smoke out. Best $25 I've spent in a discontinued item.

>>1398389
Using my phone to internet, sorry. Forgot to mention that they're single phase, yeah. Lol

*up to 500 peak.

>>1398516
What's the input voltage supplied to the transformer that puts out 110?

>>1398520
... An old DC to AC invertor I run off a deep cycle battery.

>>1399456
No, I mean the original input voltage. What was it stepping down before you removed it from its original equipment?

>>1399457
It would take in 110ac and kick out 110ac

>>1399599
Then theoretically if you hook its input up to your inverter it shouldn't really do much other than pass 110ac up to 400W. You'd be adding inductive reactance to the circuit, which would keep the output current more steady. If that's something you want, then I would recommend protecting it with a fuse.