Re: grounded primary?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "rheidlebaugh by way of Terry Fritz <twftesla-at-qwest-dot-net>" <rheidlebaugh-at-zialink-dot-com>

Adam:   Here in ths US one wire of the primary (white) is grounded, but
would not be connected to the case because a current carring wire could have
a voltage drop on it. We ground with the green wire which is not current
carring. Before the US went to the use of the green wire the outside of
equipment was connected to the white wire, but this often caused house wives
to get a mild shock when they touched appliences. This was stoped. The wife
rules the kingdom.
   Robert  H

> From: "Tesla list" <tesla-at-pupman-dot-com>
> Date: Sat, 11 May 2002 22:07:57 -0600
> To: tesla-at-pupman-dot-com
> Subject: Re: grounded primary?
> Resent-From: tesla-at-pupman-dot-com
> Resent-Date: Sat, 11 May 2002 22:09:42 -0600
> 
> Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>
> 
> Hi Adam,
> 
> What kind of NST is it?  Could you give more detail on the coil?
> 
> I can think of some situations where this may be "right" but no two Tesla
> coils
> seemed to be built the same way.  So, we have to consider the whole story in
> how this "one" is constructed.
> 
> You say the coil is "poor" but how does it relate to John's formula of spark
> length in inches:
> 
> L = 1.7 x SQRT (input power)
> 
> Cheers,
> 
> Terry
> 
> 
> At 12:00 AM 5/12/2002 -0400, you wrote:
>> 
>> I was looking at the TC at the children's museum that I work at and I
noticed
>> that the primary coil was grounded to the NST case. I have never seen (or
>> herd of) this done before. Is this the reason that the coil is getting such
>> poor performance?
>> Thanks
>> Adam
> 
> 
> 
>