single phase 230v three phase voltage 415volt why we aren't
used line voltage 690v?
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Answer Posted / hassan
In 3 phase (RYB) one Phase remain zero other one positive and one negative. if we draw 3 phase (wave)diagram .
so voltage is 440 not 690
V+0+(-V)= 2V
0+V+(-V)=2V and v=240
(-V)= V because it is magnitude
similarly
8 combination
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