Polyphase motors can be both two-period or 3-period motors. They work like one-stage induction motors, but the two single-period and polyphase motors run on a rotating magnetic subject. Their rotating magnetic fields are created by two- or three-period currents passing by way of two or far more sets of coils. The rotating magnetic area makes torque. Polyphase motors are utilized in purposes that call for substantial energy, this kind of as the power generate of compressors, hydraulic pumps, air conditioning compressors, and irrigation pumps.