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  2. NEMA size - Wikipedia

    en.wikipedia.org/wiki/NEMA_size

    These sizes are grouped by rated current and power. [1] [2] NEMA size ... Motor starter; References This page was last edited on 20 June 2020, at 20:42 (UTC ...

  3. Fractional-horsepower motor - Wikipedia

    en.wikipedia.org/wiki/Fractional-horsepower_motor

    A fractional-horsepower motor (FHP) is an electric motor with a rated output power of less than one horsepower (745.7 W) (the term 'fractional' indicates less than one unit). There is no defined minimum output, however, it is generally accepted that a motor with a frame size of less than 35mm square can be referred to as a 'micro-motor'.

  4. Motor constants - Wikipedia

    en.wikipedia.org/wiki/Motor_constants

    The motor size constant and motor velocity constant (, alternatively called the back EMF constant) are values used to describe characteristics of electrical motors. Motor constant [ edit ]

  5. Electric motor - Wikipedia

    en.wikipedia.org/wiki/Electric_motor

    A fractional-horsepower motor either has a rating below about 1 horsepower (0.746 kW), or is manufactured with a frame size smaller than a standard 1 HP motor. Many household and industrial motors are in the fractional-horsepower class.

  6. TEFC motor - Wikipedia

    en.wikipedia.org/wiki/TEFC_motor

    A Totally Enclosed, Fan-Cooled (TEFC) electric motor is a type of industrial electric motor with an enclosure that does not permit outside air to freely circulate through the interior of the motor. [1] An external fan blows outside air over the frame of the motor to cool it. This motor is arguably the most commonly used motor in ordinary ...

  7. Induction motor - Wikipedia

    en.wikipedia.org/wiki/Induction_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.

  8. Shaded-pole motor - Wikipedia

    en.wikipedia.org/wiki/Shaded-pole_motor

    Small C-frame shaded-pole squirrel-cage motor. With the poles shown, the rotor will rotate in the clockwise direction. Shading coils (copper bars) within the magnetic circuit of the field coil. The shaded-pole motor is the original type of AC single-phase electric motor, dating back to at least as early as 1890. [1]

  9. Universal motor - Wikipedia

    en.wikipedia.org/wiki/Universal_motor

    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.

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