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An AC motor is an electric motor driven by an alternating current (AC). The AC motor commonly consists of two basic parts, an outside stator having coils supplied with alternating current to produce a rotating magnetic field , and an inside rotor attached to the output shaft producing a second rotating magnetic field.
The universal motor is a type of electric motor that can operate on either AC or DC power and uses an electromagnet as its stator to create its magnetic field. [1] It is a commutated series-wound motor where the stator's field coils are connected in series with the rotor windings through a commutator. It is often referred to as an AC series motor.
An induction motor or asynchronous motor is an AC electric motor in which the electric current in the rotor that produces torque is obtained by electromagnetic induction from the magnetic field of the stator winding. [1] An induction motor therefore needs no electrical connections to the rotor.
Typically, electric motors are equipped with variable speed AC drives as they help optimize process control and save electrical energy. Vacon has estimated that in 2013 its products helped save approximately 55 TWh of energy. This corresponds to approximately 22 hours of the world's annual electrical energy production.
AC induction motors and synchronous motors are simple and low maintenance, but up until the advent of power semiconductors, were awkward to apply for traction motors because of their fixed speed characteristic. An AC induction motor generates useful amounts of power only over a narrow speed range determined by its construction and the frequency ...
HKS Toyota GR86 with the HKS "Oil Slick" livery at the 2022 Osaka Auto Messe. HKS Co., Ltd. (株式会社エッチ・ケー・エス, Kabushiki-gaisha Ecchi Kē Esu) is a publicly traded company headquartered in Fujinomiya, Shizuoka Prefecture, Japan specializing in the engineering, manufacturing, and sales of high performance aftermarket and accessory automotive parts and components.
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