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Topic Title: Residual Current Calculation...
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Created On: 04 September 2012 02:53 PM
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 04 September 2012 02:53 PM
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tech77

Posts: 2
Joined: 13 June 2011

Hello,

I am calculating residual current from 3 phase sinusoidal ,50 Hz current signal using on chip 12 bit ADC(of micro controller).Three phase currents are accurately measured.But I am getting quite good amount of residual current value( even at 2 Amp current) while 3 phase current are balanced ( both in magnitude & angle).I am using simple vector sum method to get the residual current form ADC count ( r, y, b phases).Samples are taken at a interval of < 200 uSec.

Plz share if you have any algorithm or better technique to resolve this issue.

Thanks & regards.

Tech7
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