Pelliott321 wrote:
here is the schematic of the tranny
Attachment:
The attachment isoxformer_web.jpg is no longer available
you can see that I wired brown and orange to neutral and red and yellow to hot
the filter is my version of a felix...... just x1 caps across mains and a common mode inductor in series then another set of x1 caps
this is another one but essentially the same
https://www.audionervosa.com/index.php?topic=6727.0any help would be greatly appreciated
Sorry for all this. Over the weekend I was only looking on my phone, and not very carefully.
I see now that you have paralleled the output windings. No sweat, but now you must make a ground connection, since this is a separately derived system. The rule is, at the SOURCE of the separately derived system (that is, within the isolation transformer enclosure) you must bond together the grounded and grounding conductors: the white and the green. So, you've used the brown and orange leads as your neutral. 1) Mark them with white tape, to indicate a neutral. 2) Connect a green set of conductors to the brown/orange connection and connect them to the receptacle ground pins. Disconnect 3) Disconnect the building grounds from the receptacle ground pins (that being the green wire from the power cord. 4) Connect a green or bare wire from the green/brown/orange splice to the grounding electrode system in the house. You can make this connection using a ground clamp on the cold water pipe, close to the existing clamp; in the main circuit breaker panel, on the bonding jumper (neutral bar), or spliced with a split bolt connector (commonly called a "bug"), right onto the grounding electrode conductor (wires running from the circuit breaker panel to the grounding means (rods, cold water, etc.)
All of the above is a must and the only challenging part should be the long wire to "ground".
Side note: leave the ground wire from the power cord of the transformer enclosure connected to the chassis of the transformer.
ALL the above assumes that the receptacles you've installed in the transformer are ISOLATED GROUND. if NOT, they will short you're new separately derived ground and the new cold water ground creating a parallel grounding system almost guaranteed to introduce noise into the system.