Along these lines, anyone have any idea how hard it would be to make a
PIC based high current meter for three phase? Something that would
measure say, up to 600A per phase. Doesn't have to be super accurate. I
don't know how I'd detect the current. I kinda wrote off the project due
to complexity, but this project gives me some hope. Also, there is a
cheap current meter available at RadioShack for about $17, but it only
measures up to about 30A. I thought about stealing the sensor from it.
The only problem is I'd need 3 of them. On the up side, they have a
fairly wide mouth, and it's a clamp style. I'd like to have a PIC that
measures all three phases, then transmits the data over RS485 to another
PIC which displays it.

Any suggestions?

Thanks,

Josh
--
A common mistake that people make when trying to design something
completely foolproof is to underestimate the ingenuity of complete
fools.
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Tony Nixon wrote:
> The quality is not 100% but it's readable. As you might imagine,
> scanning 10 pages from a colour magazine results in a large file, so I
> reduced the images slightly and resampled at 16 bit color.
> http://www.bubblesoftonline.com/curmet.pdf
> If you think it's unreadable then I will try to sharpen the images
> before converting.
> Here is the link to Silicon Chip and the source code for the PIC.
> http://www.siliconchip.com.au/software/jun02/ammeter.zip

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