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Question 2 A 3 – Ø, 4-wire, symmetrical supply with a phase sequence of abc supplies an unbalanced, Y- connected load of the following impedances: Za = 21.4 ∟ 54.3° Ω Zb = 19.7 ∟ -41.6° Ω Zc =20.9 ∟ 37.8° Ω An analysis of currents flowing in the direction of the load in line c shows that the positive and negative phase sequence currents are 24.6 ∟-42° A and 21.9 ∟ 102° A. The current flowing in the neutral towards the star point of the supply is 44.8 ∟36° A (a) Calculate the current in each line [8] (b) Calculate the line voltage in the system
Question 2 A 3-0, 4-wire, symmetrical supply with a phase sequence of abc supplies an unbalanced, Y- connected load of the following impedances: Za = 21.4 L 54.3° Zb = 19.7 L -41.6° 22 Zc =20.9 L 37.8° 22 An analysis of currents flowing in the direction of the load in line c shows that the positive and negative phase sequence currents are 24.6 L-42° A and 21.9 L 102° A. The current flowing in the neutral towards the star point of the supply is 44.8 L 36° A (a) Calculate the current in each line [8] (b) Calculate the line voltage in the system [12]