Are you sure about that?I have a gap about 2 inches, so at stp i need 3kv/cm or 15kv
I agree, BDV for a smooth large surface is 1kV/mm. This can rise to 3kv/mm in very clean dry air and drop to 600V/mm is moist dusty air. ( I recall Transformer factory Techs telling me the HV impulse Marx generator would arc when ramping up often when the big garage door at the other end of the building opened up after a rain) Marx Generators worth $50k for these Impulse TEsts have calibrated gaps controlled by stepper motors as they read the spinning leather enclosed HV generator charge up the caps in a minute. The gaps often fluctuate with air conditions.Are you sure about that?
The usual rule of thumb for an arc in dry air is 1000V/mm or 25kV per inch.
JimB
that is a tough question, there is no load, besides the spark gap, the old neon transformer seemed to work great, but there was prolly alot of losses that wern't noticed, just to re-mention my gap is only 2-3 inch long, 140kv was a huge miscalculation when i added one too many 0's...
I wonder how neon signs work , could I run a neon light(filled with neon) on dc pulses(1)? as i understand the way it works is that the charge time or frequency is fast enough that the (current * volts) is absorbed for light energy, and the volts are high enough to ionize the particles, while the off time allows them to release, thats kinda what i want the gap to do,
also a question is that my foot long(1 foot just a guess to the volume of bulb for old transformer) neon bulb needs 14kv, I have been reading that the ionization potential required for element neon is about 22v, does that mean that i multiply 22 * volume factor, or 14000/22 = 636(volume *pressure) of gas(2)?....
Also what if i wanted to turn most of that neon in said bulb a different color, ie ..or ..have those atoms not just get stripped of the first valance, but instead strip the second one as well, the second ionization voltage required is 41volts, would that mean i just need to double voltage OR* 41 * 636 = 26076 volts(3)???? (also i realize that would mean I need to sustain the same current for same amount of light)....
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