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Author Topic: TDH meassuement  (Read 893 times)
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Miami/Florida
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Hi:

I'm thinking of building a THD measurement device for the AC mains line (110VAC). I have very little experience in power circuits and have no idea what the typical THD values for a regular house line could be. I can always go for up to 100% in the scale; but I don't think it will get even close to that in worst case real scenarios, so that will deteriorate the instrument's resolution. Any ideas of the typical range???
Also, can I sample the 60Hz fast enough with Arduino and get multiple samples for one cycle? How many sample do you think I can get per cycle using Arduino?

Thanks
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Montreal
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Have a look: http://coolarduino.wordpress.com/2013/01/04/power-quality-meter/
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Does THD mean total harmonic distortion? Do you know what values you need to measure and how to calculate the TDH from those measured values?
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Miami/Florida
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Quote

It's hard to come up with any ideas for things to do with Arduino now. They've done it all with Arduino already... smiley-mr-green Thanks for the link.

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Does THD mean total harmonic distortion? Do you know what values you need to measure and how to calculate the TDH from those measured values?

Yes, total harmonic distortion. Yes I think I know.

http://en.wikipedia.org/wiki/Total_harmonic_distortion
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Miami/Florida
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Sorry, THD.
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