How to Create a "Dirty" 120 VAC Signal?

if you had a long enough extension cord you could plug it into one of my house outlets. My electricity is supplied by 'Bubba's Nuclear Power Plant Cooperative, Fishin' Supplies and Grill'.

Get a few flyback smps's, remove the input EMI filter. Primary switching ground can be connected to frame/earth to encourage common-mode current flow.

This can be unsafe in wrong hands, as fault current will flow on exposed metal surfaces. This should only be performed in a laboratory environment.

Low frequency emissions should increase dramatically (+30dB on a 37kHz knee frequency smps).

Not a bad idea, I have an IT guy upstairs with buckets of pre power factor corrected supplies. If I'm lucky I may find a combination that produces what I need.

in lighting circuits on the same bus, connect CFLs and PLs with cheap electronic ballasts . . also run a washing machine and fridge with variable frequency speed controls on the same bus.

Even the cheapest has a built-in filter.

Here is an example I found a few years back (and built) to give you some ideas. Although it is 230VAC it can be modified for 120VAC.

Link-page3

A quick internet search should produce others.

I think your on the right track using the Arbitary waveform generator amplify it with the sub amp and feed it into the low voltage side of the transformer (12V)

You will need to select an apropriate transformer to match to the output of the Amp ie useing a 50W amp should work well with a 120V - 20V transformer.

Adjust the gain of the amp to give the required output voltage and Bobs your uncle (Actually Bobs my uncle but Im sure you can borrow him for a while)

And if you share those blue berry muffins around than you wont be stuffed with them ;)

There are two areas here as I see.

The first is testing and certifying equipment to a national standard. No need to reinvent the wheel. Check out Measuring Equipment rentals. They will provide you with the test equipment to qualify you for your national standard.

If on the other hand, you have nastier AC environment in mind beyond that, like VFD drives on the same phase(s), your setup makes sense. It will turn out an interesting exercise.

Personally, I would rather invest in a good filter and ferroresonant AC conditioner for my own use. Short of lightning, and multicycle power dropout, it can smooth out anything reasonably well.

My employer makes test equipment, and we used to be a distributor for Kikisui, they make a AC power system that is very flexible, might check them out if this is something you will need to do on a routine basis.

Kikisui PCR-LA series

Tom D.

I picked out some top tier makers for you to see, what is out there already standards compliant equipment off the self.

One is www.emtest.com the other is www.tesequsa.com

Make good use of it.

I am symphatetic to your spirit of endeavour, where few people stray.

BUT, as boring it may sound, the world, and every single industrial nook and cranny IS controlled by standards. They are boring reading. On the other hand purchases made based on it, warranties and contracts are upheld on it.

Deviate from them at your own risk, fully aware.

Connect universal motor on the line nearby.

Gajanan Phadte