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[TCML] Tesla coil advice
Hello again,
i've finally been able to move up to a bigger coil design
and would like some advice/tips on
what i have planned. This new coil im working on is only 1
3/4 inch but is still bigger than
the 1/4 - 1/2" coils i'm used to building. Thing is,
EVERYTHING has to be home made
because tc parts are kinda hard to come across where i am,
this means the transformer, tank
cap and toroid. Now, as for the transformer, i've
disassembled 2 small power transformers
(56v ct 2amp anyone know this one) and re-stacked the
laminations to form 2 E cores and
will wind a new 6kv 10ma secondry for this. core
cross-sectional area - 1.56 sq inch, length
of windable core - 3.75".
for the tank cap i am going to make a flat plate cap from
foil and PVC or PE and adjust the
pressure to get to exactly 7n.
and heres the detailed specs:
----------------------------------------------------
Secondary Coil Inputs:
----------------------------------------------------
2.15 = Radius 1
2.15 = Radius 2
12.5 = Height 1
27 = Height 2
875 = Turns
38 = Wire Awg
----------------------------------------------------
Primary Coil Inputs:
----------------------------------------------------
4 = Radius 1
8 = Radius 2
13 = Height 1
13 = Height 2
7 = Turns
0.2 = Wire Diameter
0.007 = Primary Cap (uF)
30 = Total Lead Length
0.2 = Lead Diameter
----------------------------------------------------
Top Load Inputs:
----------------------------------------------------
Toroid #1: minor=4, major=12, height=29, topload
----------------------------------------------------
Secondary Outputs:
----------------------------------------------------
682.11 kHz = Secondary Resonant Frequency
90 deg° = Angle of Secondary
14.5 cm = Length of Winding
60.34 cm = Turns Per Unit
0.065 mm = Space Between Turns (edge to edge)
118.2 m = Length of Wire
3.37:1 = H/D Aspect Ratio
263.7062 O = DC Resistance
36158 O = Forward Transfer Impedance
35547 O = Reactance at Resonance
0.008 kg = Weight of Wire
8.294 mH = Les-Effective Series Inductance
8.123 mH = Lee-Equivalent Energy Inductance
8.573 mH = Ldc-Low Frequency Inductance
6.564 pF = Ces-Effective Shunt Capacitance
6.213 pF = Cee-Equivalent Energy Capacitance
10.284 pF = Cdc-Low Frequency Capacitance
0.109 mm = Skin Depth
5.033 pF = Topload Effective Capacitance
311.199 O = Effective AC Resistance
114 = Q
----------------------------------------------------
Primary Outputs:
----------------------------------------------------
684.14 kHz = Primary Resonant Frequency
0.3 % low = Percent Detuned
0 deg° = Angle of Primary
263.89 cm = Length of Wire
15.05 mO = DC Resistance
0.371 cm = Average spacing between turns (edge to edge)
1.745 cm = Proximity between coils
0 cm = Recommended proximity between coils
7.392 µH = Ldc-Low Frequency Inductance
0.00704 µF = Cap size needed with Primary L (reference)
0.339 µH = Lead Length Inductance
38.938 µH = Lm-Mutual Inductance
0.155 k = Coupling Coefficient
0.122 k = Recommended Coupling Coefficient
6.45 = Number of half cycles for energy transfer at K
4.64 µs = Time for total energy transfer (ideal quench
time)
----------------------------------------------------
Transformer Inputs:
----------------------------------------------------
240 [volts] = Transformer Rated Input Voltage
6500 [volts] = Transformer Rated Output Voltage
10 [mA] = Transformer Rated Output Current
50 [Hz] = Mains Frequency
240 [volts] = Transformer Applied Voltage
0 [amps] = Transformer Ballast Current
0 [ohms] = Measured Primary Resistance
0 [ohms] = Measured Secondary Resistance
----------------------------------------------------
Transformer Outputs:
----------------------------------------------------
65 [volt*amps] = Rated Transformer VA
650000 [ohms] = Transformer Impedence
6500 [rms volts] = Effective Output Voltage
0.27 [rms amps] = Effective Transformer Primary Current
0.01 [rms amps] = Effective Transformer Secondary Current
65 [volt*amps] = Effective Input VA
0.0049 [uF] = Resonant Cap Size
0.0073 [uF] = Static gap LTR Cap Size
0.0128 [uF] = SRSG LTR Cap Size
4 [uF] = Power Factor Cap Size
9192 [peak volts] = Voltage Across Cap
22981 [peak volts] = Recommended Cap Voltage Rating
0.3 [joules] = Primary Cap Energy
282.9 [peak amps] = Primary Instantaneous Current
29.6 [cm] = Spark Length (JF equation using Resonance
Research Corp. factors)
----------------------------------------------------
Static Spark Gap Inputs:
----------------------------------------------------
5 = Number of Electrodes <==linear RQ config.
1.2 [cm] = Electrode Diameter
0.26 [cm] = Total Gap Spacing
----------------------------------------------------
Static Spark Gap Outputs:
----------------------------------------------------
0.065 [cm] = Gap Spacing Between Each Electrode
9192 [peak volts] = Charging Voltage
8858 [peak volts] = Arc Voltage
39218 [volts] = Voltage Gradient at Electrode
34071 [volts/cm] = Arc Voltage per unit
96.4 [%] = Percent Cp Charged When Gap Fires
11.127 [ms] = Time To Arc Voltage
90 [BPS] = Breaks Per Second
0.27 [joules] = Effective Cap Energy
297342 [rms volts] = Terminal Voltage
25 [power] = Energy Across Gap
33 [cm] = Static Gap Spark Length (using energy equation)
also what effect does the proximity of the large chunk of
iron in the transformer to the tc
primary have on performance
so if anyone wants to advise me on this i'd greatly
appreciate it, thanks.
ben
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