In an unbalanced three phase system, phase current Ia = 1 ( 90 ) pu, negative sequence current Ib2 = 4 ( 150 )pu, zero sequence current IC0 = 3 90 pu. The magnitude of phase current Ib in pu is

In an unbalanced three phase system, phase current Ia = 1 ( 90 ) pu,

1.	In an unbalanced three phase system, phase current Ia = 1 ( 90 ) pu, negative sequence current Ib2 = 4 ( 150 )pu, zero sequence current IC0 = 3 90 pu. The magnitude of phase current Ib in pu is
A.	1.00
B.	7.81
C.	11.53
D.	13.00
Answer» D. 13.00

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In an unbalanced three phase system, phase current Ia = 1 ( 90 ) pu, negative sequence current Ib2 = 4 ( 150 )pu, zero sequence current IC0 = 3 90 pu. The magnitude of phase current Ib in pu is

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