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Registered Member #55171
Joined: Fri Jun 05 2015, 06:44AM
Location:
Posts: 9
Hello!
I would like to know what effect increasing or decreasing the input (supplied) voltage has on a Tesla coil, in particular its electric field and the length of the sparks. I found that the sparks increase with the wattage of a Tesla coil, therefore I would think that the electric field also increases. For example, when my Tesla coil is powered by 230V and I change that to 300V what will happen?
In the case that the supplied voltage has no effect on the electric field, what does change the radius of the field? I know that the torus has a big effect on it, but does the frequency of the Tesla coil determine the size of the electric field?
Registered Member #3414
Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245
The simple answer goes something like this:
The voltage on the topload determines the field.
While you need a high voltage on the topload for streamers this isn't the only factor. Frequency and current also play a part, as more current in the streamer causes more heating of the air, making it easier to ionise on the next cycle.
Registered Member #834
Joined: Tue Jun 12 2007, 10:57PM
Location: Brazil
Posts: 644
Tesla coils are essentially linear devices. Supposing that nothing breaks down, if you increase the input voltage the output voltage and the electric field around it increase in the same proportion. Assuming that streamer length is proportional to the input power, it is proportional to the square of the input voltage. A possible problem is that if you use at the input a transformer designed for 230 V and tries to power it with 300 V, its core may saturate and the output will not increase in the same proportion, if the transformer survives the stress.
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What is the effect of increasing the voltage supplied to a Tesla coil on its electric field
