The test setup comprises of a ... a trio of colossal three-phase dummy loads, and a gorgeously vintage power-factor meter. Motors are coupled via a piece of rubber to a magnetic particle brake.

This FAQ will look at the advantages and attributes of three-phase AC, also called multiphase or polyphase AC.

Industry generally runs on three-phase AC systems, mainly because three-phase electric motors are so much more efficient and compact than the equivalent single-phase motor. But residential ...