Hooking up two Topaz Isolation trans. in series?


If I hook two topaz 1kva iso ultra transformers in series will I double the current capacity? I already have one 1kva topaz and am looking at another. Two of these at 16 amps would be enough for everything in my audio rack.
If I am correct then would I need to rewire the plugs in one transformer or just plug one into the other? Would it be series or parallel stock? Any help? I have a ground hum issue in my house. Its killing my music listening experience.
I have taken my tube amp and pre amp to a shop and conferred that there is no hum at that location.
Any help is appreciated. Rod
roddey99

Showing 1 response by casouza

In fact, with two transformers in series, you would get slightley less power (1-2%), due to the iron losses of the second transformer. There is no free lunch in Mother Nature.
You will get more isolation, but ALL transformers add slight distortions, so you may be trading isolation for unwanted AC harmonics.
I have measured increased 5th, 7th and 9th harmonic distortion of the AC waveform out of a Felicia DIY project (two isolation transformers in series, with filtering caps in-between).
Google Felicia...I read all the gushing comments and wasted U$ 200 on two custom 500W iso transformers. I heard distortion in the treble, it was confirmed by borrowing a friend's AC harmonic distortion analyser.
Bummer...my Cd player sounds much better connected directly to the wall receptacle.

In order to implement iso transformers correctly and get rid of ground loop issues, I suggest that you read the following paper:
http://www.exactpower.com/assets/pdfs/theTRUTH.pdf

Good luck