View single post by Jeff
 Posted: Mar 9th, 2008 10:08 AM
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Jeff

 

Joined: Nov 7th, 2007
Location: Alabama USA
Posts: 127
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 No, Mark, it will not.  The reason is an isolation transformer only has a bandwidth of 50 - 60 Hz.  At RF frequencies, the energy would not appear at the secondary windings.  Like you mentioned, an isolation transformer is placed in line with the mains to isolate hot from chassis ground.  Some of the older arcade, and television sets had no power supply transformers, and the hot leg went directly into the power supply for rectification; while the neutral leg went directly to chassis ground.  These units often did not have a ground lug on them, and could be inserted to a power receptacle either way.  While the television, or whatever device would still work, the chassis was actually hot in one of the polarity positions.  While this wasn't dangerous in an enclosed, isolated case or enclosure, it was quite dangerous when the enclosure around the chassis was opened for service, thereby exposing the energized chassis to a service technician.

Sorry for the long explanation, but the short answer remains no, because of the very narrow bandwidth of the transformer.

Jeff