The symmetric component method (also known as Fortescue's Theorem) is used to study unbalanced polyphase power systems. The use of symmetric components is extensively used in the study of the performance of power systems, such as in short-circuit conditions [ELGERD, O. I., Introduction to the Theory of Electric Power Systems, McGraw-Hill, São Paulo SP, 1981] . Using this method, consider that an unbalanced load, in a grounded star, is fed by a balanced three-phase source ABC sequence. If the source line voltages are 100 V and the load is composed of Za = 100 Ω, Zb = 10Ω and Zc = 50Ω, what is the value of zero sequence current that will flow through the load? ALTERNATIVES A) 2.848 L-125.82° A B) 5.6 L-125.82° A C) 2.848 L0° A D) 28.48 L-125.82° A E) 2.848 L125.82° A
The symmetric component method (also known as Fortescue's Theorem) is used to study unbalanced polyphase power systems. The use of symmetric components is extensively used in the study of the performance of power systems, such as in short-circuit conditions [ELGERD, O. I., Introduction to the Theory of Electric Power Systems, McGraw-Hill, São Paulo SP, 1981] .
Using this method, consider that an unbalanced load, in a grounded star, is fed by a balanced three-phase source ABC sequence. If the source line voltages are 100 V and the load is composed of Za = 100 Ω, Zb = 10Ω and Zc = 50Ω, what is the value of zero sequence current that will flow through the load?
ALTERNATIVES
A) 2.848 L-125.82° A
B) 5.6 L-125.82° A
C) 2.848 L0° A
D) 28.48 L-125.82° A
E) 2.848 L125.82° A
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