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Project: |
"Black&White" TC for 10kVA+ (caps: 3 Maxwell 0.3uF/100kV) |
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Combined
(coil + toroid) secondary C, by E-Tesla simulation |
0,00 |
pF |
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Comment: |
Design for ~10kVA powered TC of
Kurt Schraner |
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(If non-zero: this is relevant for
the resonant frequency with topload!) |
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HV-trafo transformation ratio |
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Line frequency: |
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t ~ U2,o / U1,o = |
70 |
f = |
50 |
Hz |
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Capacity |
32,77 |
pF |
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Diameter d1 |
75 |
cm |
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L1,reso= 1 / [(2p f)2C t2] = |
54,73 |
mH |
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Cord diameter d2 |
20 |
cm |
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Primary current Irms = Vf x SQRT( BPS x
Cpri / (2 x R)) --> Dr.D.Cadd /
1st Mar 2001 |
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Max.
voltage on capacitor: 2.22 times transformer nameplate rms voltage
rating |
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Wire c-c / turn |
0,87 |
mm |
| Current limiting inductance |
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( for resonant charging, with some
losses thrown in. ), approx. Uc = |
35,5 |
kV |
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Diameter D |
20,00 |
cm |
| (i.e. stray inductance of NST's) |
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For
safe operation: capacitor voltage rating > |
71,0 |
kV |
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Wind.height H |
100,05 |
cm |
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XL1
~ XL2 / t2 = |
14,61 |
Ohm |
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Creso,NST = |
25,86268 |
nF |
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H/D ratio |
5,00 |
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L1 =
XL1 / w = |
46,52 |
mH |
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Capacity Cp = |
38,26 |
nF |
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Numb.of turns |
1150 |
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currently: no kickback filter |
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Inductance L |
47,75 |
mH |
| L1 |
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Medhurst C |
16,20 |
pF |
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Resonance |
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| U1,o = |
230 |
V |
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1nF |
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Bare secondary |
180 |
kHz |
| U1,oper = |
115 |
V |
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Reso freq. |
104 |
kHz |
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With topload |
104 |
kHz |
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Measured |
69 |
kHz |
| I1,oper >= |
8 |
A |
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Ipeak < ~ |
443 |
A |
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Lambda/4 |
722 |
m |
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Irms = ~ |
14 |
A |
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Lambda |
2888 |
m |
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RF-Ground |
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RF-Ground |
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Inner coil diameter |
35,0 |
cm |
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Trafo U2.o = |
16000 |
V at i2,o = |
0 |
mA |
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Outer coil diameter |
67,6 |
cm |
Coupling coeff.k |
######## |
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Trafo at known load (shorted: 0) U2ref = |
0 |
V at i2ref = |
130 |
mA |
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Diameter of tubing |
8 |
mm |
at elevation of |
0 |
cm |
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Operating state U2,op = |
8000 |
V at i2,op = |
113 |
mA |
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Space between turns |
12 |
mm |
of prim's above sec's first turn |
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Angle of "saucer" |
30 |
degree |
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Charging circuit reactance XL2 = |
71 |
kOhm
( XL2 = U2,op / I2,op ) |
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Number of turns total |
10 |
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Reactance of main cap.XC = |
83 |
kOhm |
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Inductance (max.) |
70,65 |
uH |
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Inductance (at tap) |
61,47 |
uH @ tap= |
9,00 |
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Break rate of main gap BPS = |
100 |
breaks per second |
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Voltage on capacitor Uc = |
17760 |
V (cap charged to 1.57 x U2,op,peak = 2.22 x U2,o assuming some resonant charging) |
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Energy in one cap-charge Wcap = |
6,03 |
J in cap
Wcap = 0.5 x
C x Uc2 also called BANG SIZE. |
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Linepower P ~1.5*Wcap x BPS = |
905 |
W ( the1.5 factor covers losses ) |
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