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The Electric power in single phase or three phase AC motors can be seen in two ways:
(a) Electrical power consumed by the AC motors
(b) Mechanical power output often referred to as Shaft power, delivered by the motor
When electrical power is fed into an electric motor using alternating current, a magnetic field is created in the stator which in turn induces voltage in the rotor creating mechanical rotational motion. The rotational mechanical power produced called shaft power is what is used to drive loads like pumps. Below is a schematic showing the relationship between electrical input power (P1) and mechanical or shaft power (P2):
(a) Electrical power consumed by the AC motors
(b) Mechanical power output often referred to as Shaft power, delivered by the motor
When electrical power is fed into an electric motor using alternating current, a magnetic field is created in the stator which in turn induces voltage in the rotor creating mechanical rotational motion. The rotational mechanical power produced called shaft power is what is used to drive loads like pumps. Below is a schematic showing the relationship between electrical input power (P1) and mechanical or shaft power (P2):
