[TCML] 50Hz = 'short end of the stick?'

[Christopher Karr <chriskarr4@xxxxxxxxxxx>]

Hello everyone,

I was curious as to the thoughts of list members about the line frequency versus the efficiency of their coils and their coils' components, as well as monetary-effectiveness

For example, a line frequency which is lower results in a less-efficient
transformer (weight:wattage) and a larger tank capacitor for the same voltage when compared to a higher frequency. Since they require a larger tank capacitor, the bang-energy is larger, but the repetition-rate (and, thus, streamer growth) is smaller (infrequent in comparison to a 400Hz system).

So far, we have established that:
1) In 50Hz-Land(s), your transformer is more expensive and more heavy (due to materials) than in 60Hz-Land(s);
2) In 50Hz-Land(s) the tank capacitor must be of a larger value at the same voltage and, thus, more expensive;
3) The streamer-growth should be expected to be lesser in 50Hz-Land, due to a relatively low bang-frequency, and;
4) The bang-energy in a 50Hz system will be larger, which contributes to secondary coil arc-overs to primary, due to over-coupling (since there is a higher peak-current).

For the remainder of this post/message, the focus will be on point (4).

Since the bang-energy is larger, over-coupling is likely to occur, but if it does not (due to a primary resistance being sufficient to allow the capacitors to discharge in an appropriate time for the coil to quench before the next AC half-cycle begins, but not immediately), it is almost certain that the coil will further lose efficiency due to a lessened power-transfer (since the current is lower, the magnetic field is less affective upon the secondary coil).

The point which seems obvious here is this - the higher the frequency of your coil (when not using a SMPS), the more efficient it should be in terms of weight, size and production cost, as well as output:$(input).

As far as is clear, has anybody made this analysis before, or used the same coil on a 50Hz&60Hz line with transformers of the rated frequency and the same voltage & current output, as well as correcting primary capacitance to the same percentage above resonance?

Thank you for your time (and patience, if this post is riddled with misconceptions - I am only sixteen years old, after all!),

 - Christopher Karr

 		 	   		  
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