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[TCML] JAVATC Misunderstanding
Hello.
Thanks for the replies to my earlier thread ?Capacitor Choice Reassurance?.
The other query I have regards Bart?s JavaTC program.
Could someone explain what the following two outputs in JavaTC actually
mean.
(My complete JAVATC design is at the bottom of this post.)
0.835 inch = Proximity between coils
1.01 inch = Recommended minimum proximity between coils
I have found an old thread in the archives from Bart (titled "JAVATC Version
11 (fwd)" from 19th Aug 2007) when he updated JAVATC to version 11,
In it he explains what he has changed in the version, and mentions these two
particular terms that I am having trouble understanding :-
Cut and pasted >>>>>>>>
5) Replaced "Clearance Between Coils" with "Proximity Between Coils".
This value accounts for any geometry, any inversion of coil inputs, any
position, any wire size. Yes the wire size is included so that the
nearest point of the two coils is "exact". This particular enhancement
took a lot of work to get right (over 4000 runs to test and verify the
geometric and positional possibilities). BTW, if the two coils butt into
one another, this is identified as a CRASH! The program will not run a
crashed configuration. This prevents issues with Geotc which can get
locked up. I've noticed this in the past on some configurations. This
geotc problem is now prevented.
6) A new output under the primary area: "Recommended Proximity Between
Coils". This output is positioned directly below the current proximity
number and is calc'd only if transformer data is inserted in the
transformer section. It will identify how far away the nearest point
between both coils should be.
End of cut and paste >>>>>>>>>>>
If I am understanding these two terms correctly, does my output value of
0.835 inches for the "Proximity between coils" distance, mean there is a
problem?
Because the data then goes on to say that the closest the coils should get,
according to my understanding of the " Recommended minimum proximity between
coils", is 1.01 inches?
So are the primary and secondary distances (1.01 ? 0.835 = 0.175 inches )
too close?
Or is my understanding of these two particular terms, "Proximity between
coils"
and "Recommended minimum proximity between coils", totally wrong?
Regards
Philip
________________________________________________________________________
J A V A T C version 11.8 - CONSOLIDATED OUTPUT
01 September 2008 22:19:54
Units = Inches
Ambient Temp = 68°F
----------------------------------------------------
Surrounding Inputs:
----------------------------------------------------
100 = Ground Plane Radius
100 = Wall Radius
150 = Ceiling Height
----------------------------------------------------
Secondary Coil Inputs:
----------------------------------------------------
Current Profile = G.PROFILE_LOADED
2 = Radius 1
2 = Radius 2
23 = Height 1
43 = Height 2
1104.97 = Turns
26 = Wire Awg
----------------------------------------------------
Primary Coil Inputs:
----------------------------------------------------
3 = Radius 1
8.18 = Radius 2
23 = Height 1
23 = Height 2
8.2231 = Turns
0.315 = Wire Diameter
0.02143 = Primary Cap (uF)
30 = Total Lead Length
0.2 = Lead Diameter
----------------------------------------------------
Top Load Inputs:
----------------------------------------------------
Toroid #1: minor=4, major=16, height=45, topload
----------------------------------------------------
Secondary Outputs:
----------------------------------------------------
236.07 kHz = Secondary Resonant Frequency
90 deg° = Angle of Secondary
20 inch = Length of Winding
55.2 inch = Turns Per Unit
0.00216 inch = Space Between Turns (edge to edge)
1157.1 ft = Length of Wire
5:1 = H/D Aspect Ratio
46.8419 Ohms = DC Resistance
32742 Ohms = Reactance at Resonance
0.89 lbs = Weight of Wire
22.074 mH = Les-Effective Series Inductance
23.253 mH = Lee-Equivalent Energy Inductance
22.667 mH = Ldc-Low Frequency Inductance
20.591 pF = Ces-Effective Shunt Capacitance
19.547 pF = Cee-Equivalent Energy Capacitance
31.706 pF = Cdc-Low Frequency Capacitance
6.06 mils = Skin Depth
16.347 pF = Topload Effective Capacitance
125.8303 Ohms = Effective AC Resistance
260 = Q
----------------------------------------------------
Primary Outputs:
----------------------------------------------------
236.06 kHz = Primary Resonant Frequency
0 % = Percent Detuned
0 deg° = Angle of Primary
24.07 ft = Length of Wire
2.52 mOhms = DC Resistance
0.315 inch = Average spacing between turns (edge to edge)
0.835 inch = Proximity between coils
1.01 inch = Recommended minimum proximity between coils
20.446 µH = Ldc-Low Frequency Inductance
0.02143 µF = Cap size needed with Primary L (reference)
0.861 µH = Lead Length Inductance
87.077 µH = Lm-Mutual Inductance
0.128 k = Coupling Coefficient
0.129 k = Recommended Coupling Coefficient
7.81 = Number of half cycles for energy transfer at K
16.38 µs = Time for total energy transfer (ideal quench time)
----------------------------------------------------
Transformer Inputs:
----------------------------------------------------
235 [volts] = Transformer Rated Input Voltage
10000 [volts] = Transformer Rated Output Voltage
48 [mA] = Transformer Rated Output Current
50 [Hz] = Mains Frequency
235 [volts] = Transformer Applied Voltage
0 [amps] = Transformer Ballast Current
4.1 [ohms] = Measured Primary Resistance
12700 [ohms] = Measured Secondary Resistance
----------------------------------------------------
Transformer Outputs:
----------------------------------------------------
480 [volt*amps] = Rated Transformer VA
207359 [ohms] = Transformer Impedence
10000 [rms volts] = Effective Output Voltage
2.05 [rms amps] = Effective Transformer Primary Current
0.0482 [rms amps] = Effective Transformer Secondary Current
482 [volt*amps] = Effective Input VA
0.0154 [uF] = Resonant Cap Size
0.023 [uF] = Static gap LTR Cap Size
0.0398 [uF] = SRSG LTR Cap Size
28 [uF] = Power Factor Cap Size
14142 [peak volts] = Voltage Across Cap
35355 [peak volts] = Recommended Cap Voltage Rating
2.14 [joules] = Primary Cap Energy
459 [peak amps] = Primary Instantaneous Current
31.7 [inch] = Spark Length (JF equation using Resonance Research Corp.
factors)
69.2 [peak amps] = Sec Base Current
----------------------------------------------------
Rotary Spark Gap Inputs:
----------------------------------------------------
0 = Number of Stationary Gaps
0 = Number of Rotating Electrodes
0 [rpm] = Disc RPM
0 = Rotating Electrode Diameter
0 = Stationary Electrode Diameter
0 = Rotating Path Diameter
----------------------------------------------------
Rotary Spark Gap Outputs:
----------------------------------------------------
0 = Presentations Per Revolution
0 [BPS] = Breaks Per Second
0 [mph] = Rotational Speed
0 [ms] = RSG Firing Rate
0 [ms] = Time for Capacitor to Fully Charge
0 = Time Constant at Gap Conduction
0 [µs] = Electrode Mechanical Dwell Time
0 [%] = Percent Cp Charged When Gap Fires
0 [peak volts] = Effective Cap Voltage
0 [joules] = Effective Cap Energy
0 [peak volts] = Terminal Voltage
0 [power] = Energy Across Gap
0 [inch] = RSG Spark Length (using energy equation)
----------------------------------------------------
Static Spark Gap Inputs:
----------------------------------------------------
2 = Number of Electrodes
0.25 [inch] = Electrode Diameter
0.16 [inch] = Total Gap Spacing
----------------------------------------------------
Static Spark Gap Outputs:
----------------------------------------------------
0.16 [inch] = Gap Spacing Between Each Electrode
14142 [peak volts] = Charging Voltage
10141 [peak volts] = Arc Voltage
36888 [volts] = Voltage Gradient at Electrode
63383 [volts/inch] = Arc Voltage per unit
71.7 [%] = Percent Cp Charged When Gap Fires
7.906 [ms] = Time To Arc Voltage
126 [BPS] = Breaks Per Second
1.1 [joules] = Effective Cap Energy
335789 [peak volts] = Terminal Voltage
139 [power] = Energy Across Gap
31.9 [inch] = Static Gap Spark Length (using energy equation)
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