Voltage, Current and Power for Balanced Three-Phase Circuits

Question 1

To calculate values in three-phase circuits, normally start at the ___________

Answer 1

load end

Question 2

Most three-phase loads are _________ loads.

Answer 2

balanced

Question 3

Unbalanced loading normally occurs under a __________, or when ___________ are connected in addition to _____________

Answer 3

fault condition, single phase loads, three-phase loads

Question 4

Define the term “balanced load”?

Answer 4

The three phases in a balanced load have the same values of impedance and power factor, and the same value of voltage impressed across them