Re: Input power measurement - Modifying Power Meters

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

Original poster: "Crow Leader by way of Terry Fritz <teslalist-at-qwest-dot-net>" <tesla-at-lists.symmetric-dot-net>

kWh is a unit of energy (1kWh = 3600000J). It's a more practical unit than
Joules for measuring electrical consumption. luckily, Joules are not as
worthless as ergs, or centiliters.

KEN
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Thursday, March 13, 2003 7:22 PM
Subject: Re: Input power measurement - Modifying Power Meters


 > Original poster: "Jim Lux by way of Terry Fritz <teslalist-at-qwest-dot-net>"
<jimlux-at-earthlink-dot-net>
 >
 > At 04:19 PM 3/13/2003 -0700, you wrote:
 > >Original poster: "Matthew Smith by way of Terry Fritz
 > ><teslalist-at-qwest-dot-net>" <matt-at-kbc-dot-net.au>
 > >
 > >Hi
 > >
 > >IIRC, domestic (and others, I guess) energy meters (they measure kWhrs!)
 >
 >
 > Ahem, shouldn't we be SI here in tesla land.. they measure joules, and
 > happen to have a scale marked in kWh. (no doubt as a result of the early
 > Edison hegemony/conspiracy to meter electricty consumption, when everyone
 > knows that electricity is "too cheap to meter")<grin>
 >
 >
 >
 > >  feature a drag magnet - I think that this imparts a braking effect on
 > > the disc.
 > >
 > >If you can get the thing open, see if this (permanent) magnet may be
adjusted.
 >
 >
 > Clever idea... you're right... the crossed fields from the current and
 > potential windings put a torque on the disk, and the drag magnet is what
 > turns a torque into a velocity.
 >
 >
 >
 >
 >