Pham Van Hung
Member
...As for calculating currents without knowing the power factor, you could assume all power factors are the same if all loads are of the same design. If not, it would be best to use approximate, typical power factors. As exemplified by this thread, accuracy of the resulting value can vary widely without knowing the power factor (or its equivalent).
Let's go to further aspects of the neutral current calculation.
What are typical power factor of typical loads such as transformers, lighting, induction motors ?
and if the manufacturers do not mark down the PF of an equipment so how we can measure the PF?
thanks