w8qz
Veteran
Location: Walker, MI - USA
| I used to work in a department that made inductors / transformers / motors / synchros / resolvers / etc. (all small instrument type stuff)
There are a couple of questions to ask:
a) How high a 'Q' value do you need? (implies choice of core material)
b) Is size any limitation?
c) Is your voltage concern r/e turn-to-turn within the inductor, or is it for the windings as a group, to ground?
d) Is cost a concern?
e) Do you plan to wind the inductor yourself?
f) How long does this thing need to last?
g) What conditions, i.e. temperature and humidity, will this inductor have to work under?
Generally, the voltage rating, r/e turn-to-turn, is driven by the insulation on the wire itself.
As to voltage rating, device to ground, this can be handled by tape and / or mounting insulators.
I'm guessing you're working on something like a Tesla coil - ? It seems to me the bigger problem here may be making the measurements on such a thing - with those kind of voltages, test leads and stray grounds may be a problem.
Never underestimate the power of very stupid people in large groups. |
