3 phase 3 wire

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Ajit's picture


Joined: Mar 08, 2019

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3 phase 3 wire
March 14, 2019 - 11:50am

Dear all

I am looking for circuit where i could able to use 3 phase 3 wire and 3 phase 4 wire common circuit for 3 phase voltmeter application.

I have tested circuit with http://www.autex.spb.su/ad/ADE7752B.pdf where i could able to achieve 3 phase 4 wire system, but i am facing issue while taking reading for 3 phase 3 wire . under this condition phase will be unbalance there will be no neutral reference. how could do software calculation here.

i found some people using below ckt . where they creating another reference ground in absence of neutral line .i would like to know what does V-X-M-H or T-A-1-G will represent.

I am suspecting on below 2 ic. does any one has idea