Test Academy | Suppose I A , I B and I C are a set of unbalanced current phasors in a three-phase system. The phase-B zero-sequence current I B0 = 0.1 ∠0° p.u. If phase-A current I A = 1.1 ∠0° p.u. and phase-C current I C = (1 ∠120° + 0.1) p.u. then I B in p.u. is 1 ∠240° - 0.1 ∠0°, 1.1 ∠240° - 0.1 ∠0°, 1.1 ∠-120° + 0.1 ∠0°, 1 ∠-120° + 0.1 ∠0°

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Suppose I_A, I_B and I_C are a set of unbalanced current phasors in a three-phase system. The phase-B zero-sequence current I_B0 = 0.1 ∠0° p.u. If phase-A current I_A = 1.1 ∠0° p.u. and phase-C current I_C = (1 ∠120° + 0.1) p.u. then I_B in p.u. is

Options :

1 ∠240° - 0.1 ∠0°
1.1 ∠240° - 0.1 ∠0°
1.1 ∠-120° + 0.1 ∠0°
1 ∠-120° + 0.1 ∠0°

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