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Re: Power versus Spark Length
From: John H. Couture[SMTP:couturejh-at-worldnet.att-dot-net]
Sent: Saturday, July 19, 1997 9:55 PM
To: Tesla List
Subject: Re: Power versus Spark Length
At 10:00 AM 7/19/97 +0000, you wrote:
>
>From: Malcolm Watts[SMTP:MALCOLM-at-directorate.wnp.ac.nz]
>Sent: Thursday, July 17, 1997 3:12 PM
>To: tesla-at-pupman-dot-com
>Subject: Re: Power versus Spark Length
>
>RE:
>
>> From: John H. Couture[SMTP:couturejh-at-worldnet.att-dot-net]
>> Sent: Wednesday, July 16, 1997 11:47 PM
>> To: Tesla List
>> Subject: Re: Power versus Spark Length
>>
>> At 01:19 PM 7/13/97 +0000, you wrote:
>> >
>> >From: FutureT-at-aol-dot-com[SMTP:FutureT-at-aol-dot-com]
>> >Sent: Saturday, July 12, 1997 3:20 AM
>> >To: tesla-at-pupman-dot-com
>> >Subject: Power versus Spark Length
>> >
>> -------------------------------------------------------
>>
>> John -
>>
>> Note that the square law relationship may only hold for a particular coil
>> at a certain wattage. This relationship would vary when the following
>> parameters are changed:
>>
>> 1. Increasing/decreasing the Tesla primary voltage would increase/decrease
>> the spark length.
>>
>> 2. Increasing/decreasing the secondary coil inductance would
>> increase/decrease the spark length.
>
>Why? Because of Vs = Ls di/dt
>
>> 3. Increasing the length of the secondary wire beyond a certain length
>> would overload the power transformer and reduce the spark length.
>
>What? Yes, it's true. Try connecting a small transformer to a big TC.
>
>> 4. The spark length is longer with pole type transformers compared to neon
>> transformers because the pole type can be changed to produce a variety of
>> short circuit wattage outputs.
>
>What possible bearing does the type of power transformer have on a TC
>if it is delivering the same power to the primary at the same
>voltage??
>
They both have different short circuit capabilities (TC operation) which
affects both power and spark length.
<snip of commercial bit>
I did not intend to insert this as a commercial bit. I wanted to point out
that anyone developing a TC computer program for watts per spark length has
to take a number of parameters into consideration.
>Malcolm
>
John Couture
>
>