Ungrounded phase conductor: Phase B = 52A. Unbalanced load = 12A. Solution: The grounded neutral conductor load is 12A for the unbalanced condition. You must use a specific formula to calculate the ...

In most cases an unbalanced loading of the three phases causes voltage imbalance. These could be single or two phase loads that are not equally split over all phases, for example boilers, heaters, air ...