Re: super HEIC/currents?!?

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

Original poster: "Jolyon Vater Cox by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jolyon-at-vatercox.freeserve.co.uk>

That is 45000v at 1.1A which is 49500 Watts or 49.5 kW. It goes without
saying that these are PEAK figures  not CONTINOUS figures and they are only
available for a tiny fraction of a second. otherwise the coils would burn
out very quickly!

This is "power compression" at work
when a reasonably small amount of energy, say 1 Joule, is used up in a
extremely short time eg. 1 microsecond the INSTANTANEOUS power is an
enormous 1MW as power is the energy over time.
The same energy used up in 1 second would represent a meagre 1 Watt of
power.

Ignition coils work by storing energy slowly -either in the magnetic field
of the core or in the case of CDI a charged capacitor- and then releasing it
quickly.

Power can be "amplified" by storing energy over longer period and releasing
it over a shorter  time but the energy -the actual capacity to do work-
would remain the same. Thus a capacitor storing 1 Joule of energy could
never raise a kettle of water to boiling point from room temperature, no
matter how quickly the capacitor was discharged.

Jolyon

From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, August 10, 2002 1:53 PM
Subject: Re: super HEIC/currents?!?


> Original poster: "Steven Ward by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<srward16-at-hotmail-dot-com>
>
> I took a look at that site, and looked at the HVC series.  Look at the
> currents that they claim to have.  One coil is rated 45000v at 1100ma
peak!!
>   How is this possible?  Because i know that only a power distribution
> transformer could do that 49,500,000 watts.  Im guessing, its some kind of
> high voltage peak with a high current peak to follow after, like those new
> electronic NSTs, that claim 15/20 from a very small and lightweight
package.
>   IT would really be amazing if these ingnition coils really did do
1100ma.
>
> Steve Ward
>
>
> >From: "Tesla list" <tesla-at-pupman-dot-com>
> >To: tesla-at-pupman-dot-com
> >Subject: super HEIC
> >Date: Fri, 09 Aug 2002 07:40:46 -0600
> >
> >Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> ><herwig.roscher-at-gmx.de>
> >
> >
> >Hello,
> >
> >I just read an advertisement, stating that MSD Ignition (part of
> >Autronic Controls Corporation) manufactures ignition coils for
> >dragsters, stock cars, speed boats and tractors for pull competitions
> >(translation?) which deliver voltages as high as 65 kV. Each coil is
> >tested at 50 kV for 15 minutes prior to delivery.
> >
> >Maybe one of you lucky Americans could grab such a jewel. URL is
> >www.msdignition-dot-com
> >
> >Cheers,
> >
> >Herwig
> >---------------------------------------
> >Greed is the root of all evil!
> >---------------------------------------
> >
> >