a) Compare between symmetrical fault and unsymmetrical fault b) The sequence currents in the "a" phase are as under: la1 = 80 + j40 A lao = 10 - j20 A la2 = 70 A %3D i) Calculate phase currents la, lb...

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Extracted text: a) Compare between symmetrical fault and unsymmetrical fault b) The sequence currents in the "a" phase are as under: la1 = 80 + j40 A lao = 10 - j20 A la2 = 70 A %3D i) Calculate phase currents la, lb and Ie ii) Calculate return current in the neutral wire IN i) Draw a neat and clear phasor diagrams of Positive sequence currents - Negative sequence currents - Zero sequence currents