Consider the Multisim representation of a balanced three-phase Y-Y power system shown in Figure P16-57. An owner

Question:

Consider the Multisim representation of a balanced three-phase Y-Y power system shown in Figure P16-57. An owner of the plant who wants to install the system is contemplating whether to save money by eliminating the need for the neutral return line. The owner (not an engineer) was told that the line carries no current. As a junior engineer, you learned that while the neutral line indeed carries no current when the system is balanced, it is a safety feature for when the system becomes unbalanced. Use Multisim to demonstrate to the owner that the neutral line plays a key role if, for example, one of the lines becomes an open circuit.

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