Asked Oct 13, 2019

why 3-phase power has replaced 2-phase power.


Expert Answer

Step 1

Three phase system has phase difference of 120 degrees.

Phasor diagram of 3 phase system is –


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В 120° 1200 120°

Step 2

Two phase system has phase difference of 90 degrees.

Phasor diagram of 2 phase system is –


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Step 3

In 3 phase system neutral wi...


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Iy 201-120° +12120°| 0


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