Re: ARSG Questions

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Yurtle Turtle <yurtle_t@xxxxxxxxx>

It's buried in the attached JavaTC output below. I
have a 240/14.4 25 kVA pig. I'm running it around 30
amps at 200 volts, so around 6 kVA for the moment,
with plans for up to 25 kVA. Any more than that and
the emergency gaps start taking over. I realize I have
a lot of tuning and tweaking ahead of me, but I'd like
to get my gap figured out.

Adam


--- Tesla list <tesla@xxxxxxxxxx> wrote:

> Original poster: "resonance"
> <resonance@xxxxxxxxxxxx>
>
> what is the power level at which your supply xmfr is
> running??  KVA?
>
>
> Dr. Resonance
>
>
>
> I've noticed a number of large coils use arsg's with
> no problems, while others seem to need a static gap
> in
> series with their arsg. Mine seems to be the latter.
> Does anyone know why some need this and others
> don't?
>
> My 10" coil used this gap:
>
>
http://www.hot-streamer.com/adam/bigass_coil/srsg.jpg
>
> modified to use a 3 phase 1725 rpm motor for between
> 120 and 460 bps. I've tried various rsg gap
> spacings,
> but adding a series static sucker gap makes it run
> very smooth. Unfortunately, my coil is so loud, I
> have
> to limit my runtimes to several hours a week. That
> limits my ability to make modifications and try them
> out, so I'm trying to leach info from folks who have
> already figured this out.
>
> Has anyone had any luck running all four gaps in
> series on an ASRG similar to mine?
> How about two sets in parallel?
> What gap spacing are most folks running on their
> ASRG?
> For folks running a series static gap, what type,
> number of gaps, and total spacing have you found
> work
> best?
>
> My specs are here:
>
> J A V A T C v.10 - CONSOLIDATED OUTPUT
> Monday, July 04, 2005 7:48:44 AM
>
> Units = Inches
>
> ----------------------------------------------------
> Surrounding Inputs:
> 120 = Ground Plane Radius
> 120 = Wall Radius
> 120 = Wall Height
> 120 = Ceiling Radius
> 120 = Ceiling Height
>
> ----------------------------------------------------
> Secondary Coil Inputs:
> Current Profile = G.PROFILE_LOADED
> 5.375 = Radius 1
> 5.375 = Radius 2
> 23 = Height 1
> 76.25 = Height 2
> 1235.4 = Turns
> 18 = Wire Awg
>
> ----------------------------------------------------
> Primary Coil Inputs:
> 7.125 = Radius 1
> 16.421 = Radius 2
> 21.5 = Height 1
> 21.5 = Height 2
> 8.75 = Turns
> 0.375 = Wire Diameter
> 0.075 = Primary Cap (uF)
> 0 = Desired Coupling (k)
>
> ----------------------------------------------------
> Top Load Object Inputs (dimensions & topload or
> ground
> connection):
>
>
> Toroid #1: minor=6, major=24, height=79.5, topload
> Toroid #2: minor=8, major=34, height=85.625, topload
>
>
>
>
> ----------------------------------------------------
> Secondary Outputs:
> 79.96 [kHz] = Secondary Resonant Frequency
> 90 [deg°] = Angle of Secondary
> 53.25 [inch] = Length of Winding
> 23.2 = Turns Per inch
> 0.0028 [inch] = Space Between Turns (edge to edge)
> 15 [awg] = Recommended Wire Size
> 3476.8 [ft] = Length of Wire
> 4.95 = H/D Aspect Ratio
> 22.2 [ohms] = DC Resistance
> 36693 [ohms] = Reactance at Resonance
> 37111 [ohms] = Forward Transfer Impedance
> 17.09 [lbs] = Weight of Wire
> 73.034 [mH] = Les-Effective Series Inductance
> 69.885 [mH] = Lee-Equivalent Energy Inductance
> 76.845 [mH] = Ldc-Low Frequency Inductance
> 54.246 [pF] = Ces-Effective Shunt Capacitance
> 50.742 [pF] = Cee-Equivalent Energy Capacitance
> 83.953 [pF] = Cdc-Low Frequency Capacitance
> 9.2 [mils] = Skin Depth
> 40.647 [pF] = Topload Effective Capacitance
>
> ----------------------------------------------------
> Primary Outputs:
> 79.96 [kHz] = Primary Resonant Frequency
> 0 [%] = Percent Detuned
> 0 [deg°] = Angle of Primary
> 53.93 [ft] = Length of Wire
> 0.688 [inch] = Average spacing between turns (edge
> to
> edge)
> 1.75 [inch] = Primary to Secondary Clearance
> 53.009 [uH] = Ldc-Low Frequency Inductance
> 240.616 [uH] = Lm-Mutual Inductance
> 0.119 [k] = Coupling Coefficient
> 8.4 = Number of half cycles for energy transfer at K
> 52.08 [uS] = Time for total energy transfer (ideal
> quench time)
>
> ----------------------------------------------------
> Transformer Inputs:
> 240 [volts] = Transformer Rated Input Voltage
> 14400 [volts] = Transformer Rated Output Voltage
> 17361 [mA] = Transformer Rated Output Current
> 60 [Hz] = Mains Frequency
> 280 [volts] = Transformer Applied Voltage
> 50 [amps] = Transformer Ballast Current
>
> 0 [ohms] = Measured Primary Resistance
> 0 [ohms] = Measured Secondary Resistance
>
> ----------------------------------------------------
> Transformer Outputs:
> 249998 [volt*amps] = Rated Transformer VA
> 829 [ohms] = Transformer Impedence
> 16800 [rms volts] = Effective Output Voltage
> 50 [rms amps] = Effective Input Current
> 14000 [volt*amps] = Effective Input VA
> 3.198 [uF] = Resonant Cap Size
> 4.797 [uF] = Static gap LTR Cap Size
> 8.3389 [uF] = SRSG LTR Cap Size
> 11513 [uF] = Power Factor Cap Size
> 23755 [peak volts] = Voltage Across Cap
> 83975 [peak volts] = Recommended Cap Voltage Rating
> 21.16 [joules] = Primary Cap Energy
> 895.2 [peak amps] = Primary Instantaneous Current
> 181 [inch] = Spark Length (JF equation using
> Resonance
> Research Corp. factors)
>
> ----------------------------------------------------
> Rotary Spark Gap Inputs:
> 1 = Number of Stationary Gaps
> 8 = Number of Rotating Electrodes
> 3600 [rpm] = Disc RPM
> 0.5 = Rotating Electrode Diameter
> 0.5 = Stationary Electrode Diameter
> 7.75 = Rotating Path Diameter
>
> ----------------------------------------------------
> Rotary Spark Gap Outputs:
> 8 = Presentations Per Revolution
> 480 [BPS] = Breaks Per Second
> 83 [mph] = Rotational Speed
> 2.08 [ms] = RSG Firing Rate
> 7.56 [ms] = Time for Capacitor to Fully Charge
> 1.38 = Time Constant at Gap Conduction
> 0.68 [ms] = Electrode Mechanical Dwell Time
> 74.79 [%] = Percent Cp Charged When Gap Fires
> 17766 [peak volts] = Effective Cap Voltage
> 11.84 [joules] = Effective Cap Energy
> 683024 [peak volts] = Terminal Voltage
> 5681 [joule*seconds] = Energy Across Gap
> 203 [inch] = RSG Spark Length (using energy
> equation)
>
> ----------------------------------------------------
> Static Spark Gap Inputs:
> 0 = Number of Electrodes
> 0 [inch] = Electrode Diameter
> 0 [inch] = Total Gap Spacing
>
> ----------------------------------------------------
> Static Spark Gap Outputs:
>   [inch] = Gap Spacing Between Each Electrode
>   [peak volts] = Charging Voltage
>   [peak volts] = Arc Voltage
>   [volts] = Voltage Gradient at Electrode
>   [volts/inch] = Arc Voltage per unit
>   [%] = Percent Cp Charged When Gap Fires
>   [ms] = Time To Arc Voltage
>   [BPS] = Breaks Per Second
>   [joules] = Effective Cap Energy
>   [peak volts] = Terminal Voltage
>   [joule*seconds] = Energy Across Gap
>   [inch] = Static Gap Spark Length (using energy
> equation)
>
> thanks
> Adam
>
>
>
>
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