Re: OBIT Test Problem (reformatted) (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Tue, 23 Oct 2007 14:02:39 EDT
From: Mddeming@xxxxxxx
To: tesla@xxxxxxxxxx
Subject: Re: OBIT Test Problem (reformatted) (fwd)

 
Hi All,
 
    I just found the 30 kV AC  probe for my  VOM listed on Ebay. . This probe 
hasn't been manufactured for ~25 years, so I  may be bidding against antique 
collectors. Hopefully no one else will bid.
 
Matt D.
 
 
In a message dated 10/23/07 8:53:05 A.M. Eastern Daylight Time,  
tesla@xxxxxxxxxx writes:


---------- Forwarded message ----------
Date: Tue, 23 Oct 2007  00:08:52 EDT
From: Mddeming@xxxxxxx
To: tesla@xxxxxxxxxx
Subject: Re:  OBIT Test Problem (reformatted) (fwd)


Hi Gary, All

Before jumping to conclusions about the usefulness  of technique,  I think 
I'll run the same kind of test on a couple of NSTs. As  Phil  suggested, the 
VOM may be loading down the transformer... 
 
Snipp>>>



---------- Forwarded message  ----------
Date: Tue, 23 Oct 2007  01:12:24 +0000
From: "Lau, Gary"  <Gary.Lau@xxxxxx>
To: 'Tesla  list'  <tesla@xxxxxxxxxx>
Subject: RE: OBIT Test Problem (reformatted)   (fwd)

Wow, that's pretty whacky!  If I didn't know better,  I'd  suspect that
quantum aetherdynamics was at play here.  Not  only is the  Vo/Vi ratio
different for forward vs. reverse  measurements, but the ratio  varies with
excitation voltage.  And  stranger still, the ratio  increases with
increasing excitation  voltage for forward testing, but the  ratio DECREASES
with increasing  excitation voltage for reverse  testing.

Sorry, but I'm  stumped.  I wonder if this behavior is  specific  to
current-limited transformers?  But thank you, you've   certainly rewritten
the advice I would use and give to others trying  to  measure an NST's
voltage!

Regards, Gary Lau
MA,   USA








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