Dwell times and coupling

To: List Tesla <tesla-at-pupman-dot-com>
Subject: Dwell times and coupling
From: huffman <huffman-at-fnal.gov>
Date: Fri, 11 Oct 1996 09:50:55 -0500

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Hi Group,
Some thoughts on coupling:
I did some spice simulations changing only the coupling coefficient. 
Here are the results, also pictures available at ftp://d0huff.fnal.gov/ftp 

Coupling	Time		Voltage
0.2		11.142us	217.94KV
0.1		21.236us	177.76KV
0.08		26.235us	162.30KV
0.06		31.235us	142.08KV
0.04		41.235us	112.77KV
0.02		66.236us	68.62KV
0.01		91.237us	37.80KV

The times are where the voltages are maximum. Again this is for a 200KHz
resonant TC.
It appears you want as much coupling as possible without primary-secondary
arcing(submersed in oil?)
Lower coupling means longer dwell times (more primary cycles to ring up the
secondary) 
and less voltage. With losses in the system, resistance for one, each extra
cycle loses energy to heat.
Dave