RE: Magnetic quenching.

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

Original poster: "John H. Couture" <couturejh-at-mgte-dot-com> 


Robert -

With only a voltmeter and resistor I would expect that you would get wattage
readings only when the load is not reactive. If the load has reactive
components you would get VA or the same information as when using a
voltmeter and ammeter. To find wattage with a reactive load you need a
wattmeter. I use a wattmeter, voltmeter and ammeter so I can find the watts,
VA, reactive power and the power factor. There has been some talk about
using electronic meters but they probably would not last very long in the TC
environment.

Dave - I have never seen a digital wattmeter. I would be interested in
hearing how they work with TCs. Standard analog wattmeters cost only about
$15. You can use current shunts for higher wattages.

John Couture

----------------------------------


-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Friday, March 12, 2004 1:24 PM
To: tesla-at-pupman-dot-com
Subject: Re: Magnetic quenching.


Original poster: robert & june heidlebaugh <rheidlebaugh-at-desertgate-dot-com>

Dave: I have a selection of parallel resistors I use as a watt meter. 0ne is
10 ohm , one is 1 0hm and 0ne is o.1 0hm. I also have a strip of stainless
steel with connections to test currents over 100 amps calibrated with taps
to match a source. with these and a volt meter I can figure watts.
     Robert   H
         P.S. I also have a 5/8  ss302 rod 1 ft long with brass connectors
calibrated to 1000 amps in a box somewhere if I find a nead.
--


  > From: "Tesla list" <tesla-at-pupman-dot-com>
  > Date: Thu, 11 Mar 2004 11:28:39 -0700
  > To: tesla-at-pupman-dot-com
  > Subject: RE: Magnetic quenching.
  > Resent-From: tesla-at-pupman-dot-com
  > Resent-Date: Thu, 11 Mar 2004 12:24:17 -0700
  >
  > Original poster: "David Thomson" <dave-at-volantis-dot-org>
  >
  > Hi Gerry,
  >
  > I don't have a watt meter at this time so I can only infer the input
power
  > from the transformer rating.  I use a 15kV, 30mA NST so my input power
with
  > the variac open is about 450 watt.
  >
  > A significant cause for the cool running of my coil is due to the
secondary
  > construction technique.  After studying Tesla's Wardencliffe patents and
  > previous patents concerning secondary coil shapes, I deduced that the
  > Wardencliffe secondary is actually a combination flat spiral and tall
  > solenoid coil.  The introduction of the flat spiral in the secondary
appears
  > to alter the electromagnetic orientation of the electrons and allow the
  > coils, capacitors and spark gap to run a lot cooler.
  >
  > With Terry Fritz's guidance, I have just finished setting up a new
testing
  > laboratory for investigating the properties of this type of coil design.
If
  > my research funding continues as in the past few months, I'll buy a new
  > digital watt meter to interface with the DAQ system.
  >
  > Dave
  >
  >> -----Original Message-----
  >> From: Tesla list [mailto:tesla-at-pupman-dot-com]
  >> Sent: Thursday, March 11, 2004 8:30 AM
  >> To: tesla-at-pupman-dot-com
  >> Subject: Re: Magnetic quenching.
  >>
  >>
  >> Original poster: "Gerry Reynolds" <gerryreynolds-at-earthlink-dot-net>
  >>
  >> Hi Dave,
  >>
  >> What power levels are you using?
  >>
  >> Gerry R
  >>
  >>> I've used magnetic spark quenching for years with no loss of
  >> magnetism in
  >>> the magnets.  In fact, there is no heating of the magnets.  My
  >> spark gap
  >> and
  >>> TC run so cool as a unit I can operate it for an hour with no
  >> appreciable
  >>> heating on the transformer, gap, or coils.  The spark gap itself makes
  >> very
  >>> little noise compared to my copper tube assembly spark gap.
  >>>
  >>> Dave
  >>>
  >>>
  >
  >