[R-390] Isolation transformer question

[Bob Camp]

HI

This is one of the reasons a medical grade isolation transformer is a  
good idea. The whole thing started with "filter leakage". With a low  
leakage transformer you can do the static thing with a couple of good  
resistors in the 10 meg range.

Bob
KB8TQ


On Jul 8, 2007, at 3:22 PM, Paul Galpin wrote:

>
> Certain assumptions are being made about the secondary of the I.T.  
> In fact,
> there are several unknowns. What is the secondary live-to-earth  
> resistance,
> neutral-to-earth impedance? How do these change when a piece of  
> equipment is
> connected? The secondary is floating and could even be standing up  
> at kVolts
> of static (very unlikely, but theoretically possible in a very dry  
> climate)