RE: Input power

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

Original poster: "Lau, Gary by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Gary.Lau-at-compaq-dot-com>

The answers depend somewhat upon whether you're using a static or rotary
gap.  I'll assume a static gap.

Going from a 15/30 to 15/90 power supply will definitely increase your spark
length without changing anything else.  You're correct, the cap will charge
to gap-breakdown voltage faster, so your "bang rate" or BPS will increase.

The energy per bang will remain the same, but since there will be more bangs
per second, the power will be greater.  This also means that the RMS current
through the cap will be greater and puts a higher stress on the cap, even
though the charging voltage is the same.  This gets into the technical
definition of power vs. energy, an old thread that I hope will not
resurface...

Regards, Gary Lau
MA, USA

 -----Original Message-----
From: 	Tesla list [mailto:tesla-at-pupman-dot-com] 
Sent:	Friday, August 31, 2001 12:34 PM
To:	tesla-at-pupman-dot-com
Subject:	Input power

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

Does increasing the power supply to the tesla coil i.e. from 15kv 30ma to
a 15kv90ma and changing nothing else increase spark length or the
frequency that they occur?

I think that it will increase the frequency that they occur because the
capacitor will charge faster thus discharge at a higher frequency, but
the power the capacitor outputs is the same.
Is this true or false?

My Terminology may be incorrect due to me NOT being an electrical
engineer, if anyone that wants to answer but needs me to specify
something let me know.

Peace,
Ry