RE: Watt meters

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

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


Ed -

I believe you could use this wattmeter on larger TCs if you connect a shunt
across the current terminals?

John Couture

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


-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Tuesday, March 16, 2004 10:21 AM
To: tesla-at-pupman-dot-com
Subject: Re: Watt meters


Original poster: Ed Phillips <evp-at-pacbell-dot-net>

Tesla list wrote:
  >
  > Original poster: "Lau, Gary" <gary.lau-at-hp-dot-com>
  >
  > I found a Weston analog Watt meter (0-2 & 0-4kW) at a ham fest some time
  > ago and have yet to try it.  There are a pair of terminals for load
  > voltage and another pair for load current sensing.  My question is -
  > will this read true watts with a reactive (i.e. Tesla coil) load?
  >
  > Thanks, Gary Lau
  > MA, USA

	Yes it will, theoretically independent of load waveform and frequency.
A valuable find.  I got one at a hamfest too but it's only 200 W max so
good only for very low power coils.

Ed