Re: [TCML] Inductor design program?

[bunnikillr <bunnikillr@xxxxxxx>]

Hey John...

some basic rules of thumb on desiging your own inductor are as follows...

determine the amount of amperage you wish to use at a maximum limit  
choose wire size based on maximum current draw

metal core EI units with the center leg square inch area runs about 
2.5-3 amps per square inch before saturation becomes an issue

generally, the number of winds on the EI core is about 1 wind per volt 
to be applied to the inductor

for example:  I want an inductor to handle 60 amps and will run 240 
volts thru it

center leg size would be around 20 square inches
Wire size would be a # 6 THHN solid copper
and it would have about 200 winds on the center leg

this will result in a sturdy, well built inductor and should have no 
issues handling the expected load.


Scot D



jhowson4@xxxxxxxxxxx wrote:

> Hello 
> I am attempting to figure out how to design the Inductor for the ballast I am working on. does any one know of a program (free) that will allow to me to input the core dimensions, wire gauge, insulation thickness, number of turns etc. And tell me things like the inductance, resistance, will it fit in the core window, ect. 
>
> I have been looking for about an hour now to no avail. 
> I am trying to design the Ballast I am working on but cant really find the much info about how to do it, any suggestions. 
>
> I was planning on winding a coil and tapping it at various points, this would allow me to have a wider variety of inductance choices and thus current choices. such a plan will probably consists of multiple coils of different gauge in series. It does not make sense to wind an entire coil with 40amp wire when only 1/4 of it would only ever be carrying 40 amps. Right? 
>
> Thanks, 
> John "Jay" Howson IV 
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
>
>  

_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla