- #1

johnboyman

- 22

- 2

Hello I am building a Tesla Coil. I built it well I attached an image of the circuit I used. I bought a 15,000 volt transformer rated at 30 ma. I think it is too small for my tesla coil because it keeps blowing a fuses and a red light turns on. Here are the specs.

-Inductance (L): 17 uH

-Capacitance (C): 0.023 uF

-Resonant Frequency(F): 254.201 KHz

-Diameter (D): 6.5 inches

-Number of Turns(N): 12

-WireDiameter (W): 0.25

-Turn Spacing(S): 0.25

Height: 7.5 inches

Length Of Wire: 282.743

Inductance: 17 uH

.33uF/13 = 0.025 uF

2000 Volts each * 12 = 25,000 VoltsI am trying to find a formula on the internet to calculate the peak current of the entire circuit to find out how much current is going through my transformer. I have found many formulas that are very close but i just can't fully get my head around this. Here are some formulas I found.

This is what someone else wrote:

Q: A 140 micro farad capacitor is connected with 250 volts, 50 hertz. What is the value of the current?

A: The impedance of a capacitor is given by Xc = 1/ (2*pi * f * C)

If there is no other component in circuit, then I = V / Xc = 250 * 2 * pi * 50 * 140*10^–6 = 11 amps.

My ideas on how to finish these formulas for my needs is to:

Vrms = 15000 volts / 13 = 1,153 volts per capacitor

C = .33 uf per cap

calculate the peak current per capacitor with the above formulas, then divide the result by 13 may equal the total peak current in the circuit. That is the direction i am moving in.

This is as far as i can find. I have one string of capacitors in an mmc string. non in parallel just 13 .33 uf capacitors in a string and a 15000 volt transformer. How can i use these equations and factor in my 13 .33 uf Capacitors to find the peak Current of My tesla coil circuit. I could just buy a 60 ma transformer and i think it would work but i need to know the math before i move on because its just driving my nuts.

Thanks a lot guys.

-Inductance (L): 17 uH

-Capacitance (C): 0.023 uF

-Resonant Frequency(F): 254.201 KHz

-Diameter (D): 6.5 inches

-Number of Turns(N): 12

-WireDiameter (W): 0.25

-Turn Spacing(S): 0.25

Height: 7.5 inches

Length Of Wire: 282.743

Inductance: 17 uH

.33uF/13 = 0.025 uF

2000 Volts each * 12 = 25,000 VoltsI am trying to find a formula on the internet to calculate the peak current of the entire circuit to find out how much current is going through my transformer. I have found many formulas that are very close but i just can't fully get my head around this. Here are some formulas I found.

This is what someone else wrote:

Q: A 140 micro farad capacitor is connected with 250 volts, 50 hertz. What is the value of the current?

A: The impedance of a capacitor is given by Xc = 1/ (2*pi * f * C)

If there is no other component in circuit, then I = V / Xc = 250 * 2 * pi * 50 * 140*10^–6 = 11 amps.

My ideas on how to finish these formulas for my needs is to:

Vrms = 15000 volts / 13 = 1,153 volts per capacitor

C = .33 uf per cap

calculate the peak current per capacitor with the above formulas, then divide the result by 13 may equal the total peak current in the circuit. That is the direction i am moving in.

This is as far as i can find. I have one string of capacitors in an mmc string. non in parallel just 13 .33 uf capacitors in a string and a 15000 volt transformer. How can i use these equations and factor in my 13 .33 uf Capacitors to find the peak Current of My tesla coil circuit. I could just buy a 60 ma transformer and i think it would work but i need to know the math before i move on because its just driving my nuts.

Thanks a lot guys.

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