what are the major difference between 3phase 3wire and 3phase 4wire trivector

what are the major difference between 3phase 3wire and
3phase 4wire trivector meter?

Question Posted / rudresh.hs.cta

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what are the major difference between 3phase 3wire and 3phase 4wire trivector meter? ..

Answer / ahmed

3phase 3wire with out nutral
3phase 4wire with nutral

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what are the major difference between 3phase 3wire and 3phase 4wire trivector meter? ..

Answer / mohammed mushtaq

3phase 3wire meter employ 2 watt meter method while 3phase 4wiretmeter employ 3watt meter method to measure energy

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