Coil specs - was: PFC Question

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "David Rieben" <drieben@xxxxxxxxxxxxxxx>

Bart,

Thanks for running the numbers. From looking at his data
myself after sending it to you, I got to figuring that his primary
C was probably going to wind up somewhere in the .125 to
.15 uFd range, so I wasn't too far off :^)  Of course I forgot
to consider the corona ring, too. I'll pass the C size info on
to him.

David


----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Thursday, November 10, 2005 8:53 PM
Subject: Re: PFC Question]


Original poster: "Barton B. Anderson" <bartb@xxxxxxxxxxxxxxxx>

Hi David,

I got your data on the coil and ran the numbers
including the corona ring. The cap size he's
using is .157uF. So, if it's a 10kva pig, then
he's just slightly above resonance (about 0.13uF)
which is still barely LTR, but LTR nonetheless.
His sparklengths are probably seeing benefits of
running near resonance. This is a high energy coil at 32J. Cool!

Here's a Javatc output of the relevant data for reference
Take care,
Bart
*******************************************************
J A V A T C v.10 - CONSOLIDATED OUTPUT
Thursday, November 10, 2005 6:32:07 PM

Units = Inches

----------------------------------------------------
Surrounding Inputs:
100 = Ground Plane Radius

----------------------------------------------------
Secondary Coil Inputs:
Current Profile = G.PROFILE_LOADED
7.25 = Radius 1
7.25 = Radius 2
40 = Height 1
88.5 = Height 2
1000 = Turns
18 = Wire Awg

----------------------------------------------------
Primary Coil Inputs:
8.75 = Radius 1
14 = Radius 2
40 = Height 1
40 = Height 2
6 = Turns
0.375 = Wire Diameter
0.157 = Primary Cap (uF)
0 = Desired Coupling (k)

----------------------------------------------------
Top Load Object Inputs (dimensions & topload or ground connection):

Toroid #1: minor=6, major=40, height=106.5, topload
Toroid #2: minor=2.5, major=15.5, height=88.75, topload

----------------------------------------------------
Secondary Outputs:
72.43 [kHz] = Secondary Resonant Frequency
90 [deg°] = Angle of Secondary
48.5 [inch] = Length of Winding
20.6 = Turns Per inch
0.0082 [inch] = Space Between Turns (edge to edge)
3796.1 [ft] = Length of Wire
3.34 = H/D Aspect Ratio
24.24 [ohms] = DC Resistance
42317 [ohms] = Reactance at Resonance
43031 [ohms] = Forward Transfer Impedance
18.66 [lbs] = Weight of Wire
92.986 [mH] = Les-Effective Series Inductance
91.019 [mH] = Lee-Equivalent Energy Inductance
96.451 [mH] = Ldc-Low Frequency Inductance
51.926 [pF] = Ces-Effective Shunt Capacitance
49.155 [pF] = Cee-Equivalent Energy Capacitance
90.228 [pF] = Cdc-Low Frequency Capacitance
11.27 [mils] = Skin Depth
36.812 [pF] = Topload Effective Capacitance
96.3 [ohms] = Effective AC Resistance
439 = Q

----------------------------------------------------
Primary Outputs:
72.42 [kHz] = Primary Resonant Frequency
0.01 [%] = Percent Detuned
0 [deg°] = Angle of Primary
35.74 [ft] = Length of Wire
0.5 [inch] = Average spacing between turns (edge to edge)
1.5 [inch] = Primary to Secondary Clearance
30.763 [uH] = Ldc-Low Frequency Inductance
315.831 [uH] = Lm-Mutual Inductance
0.183 [k] = Coupling Coefficient
5.46 = Number of half cycles for energy transfer at K
36.93 [uS] = Time for total energy transfer (ideal quench time)

----------------------------------------------------
Transformer Inputs:
240 [volts] = Transformer Rated Input Voltage
14400 [volts] = Transformer Rated Output Voltage
694 [mA] = Transformer Rated Output Current
60 [Hz] = Mains Frequency
240 [volts] = Transformer Applied Voltage

----------------------------------------------------
Transformer Outputs:
9994 [volt*amps] = Rated Transformer VA
20749 [ohms] = Transformer Impedence
14400 [rms volts] = Effective Output Voltage
41.6 [rms amps] = Effective Input Current
9994 [volt*amps] = Effective Input VA
0.1278 [uF] = Resonant Cap Size
0.1918 [uF] = Static gap LTR Cap Size
0.3333 [uF] = SRSG LTR Cap Size
460 [uF] = Power Factor Cap Size
20362 [peak volts] = Voltage Across Cap
71978 [peak volts] = Recommended Cap Voltage Rating
32.55 [joules] = Primary Cap Energy
1454.6 [peak amps] = Primary Instantaneous Current
153 [inch] = Spark Length (JF equation using Resonance Research Corp. factors)

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