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power calculation using PICmicrocontroller

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ajit_nayak87

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Dear all,

I am trying to find equation for 3phase 3 wire , 3 phase 4 wire voltage, current, wattage, total power
etc. I have the 3 phase 4 wire device where it can measure voltage and current (using CT out.)

Now i wanted to measure the same for 3 phase 3 wire system.

in first case neutral is common , where i could able to read the voltgae, current, watatge, total power etc.

Now i have removed neutral, since it wont get common closed path it wont calculate the voltage , current, power etc. can someone suggest me how can achieve this using simple common circuit.

Its nothing but Y, Delta reading & calculate value.

End application : 3 phase energy meter with common 3 phase 3 wire & 3 phase 4 wire system
 

Hi,

Show a draft - or even better: a schematic - about your application.

Klaus
 

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