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  2. Air handler - Wikipedia

    en.wikipedia.org/wiki/Air_handler

    Air handlers typically employ a large squirrel cage blower driven by an AC induction electric motor to move the air. The blower may operate at a single speed, offer a variety of set speeds, or be driven by a variable-frequency drive to allow a wide range of air flow rates. Flow rate may also be controlled by inlet vanes or outlet dampers on the ...

  3. Motor soft starter - Wikipedia

    en.wikipedia.org/wiki/Motor_soft_starter

    A motor soft starter is a device used with AC electrical motors to temporarily reduce the load and torque in the powertrain and electric current surge of the motor during start-up. This reduces the mechanical stress on the motor and shaft, as well as the electrodynamic stresses on the attached power cables and electrical distribution network ...

  4. Universal motor - Wikipedia

    en.wikipedia.org/wiki/Universal_motor

    The universal motor is modified in several ways to allow for proper AC supply operation. There is a compensating winding typically added, along with laminated pole pieces, as opposed to the solid pole pieces found in DC motors. [2] A universal motor's armature typically has far more coils and plates than a DC motor, and hence fewer windings per ...

  5. List of resistors - Wikipedia

    en.wikipedia.org/wiki/List_of_resistors

    A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, to divide voltages , bias active elements, and terminate transmission lines , among other uses.

  6. AC motor - Wikipedia

    en.wikipedia.org/wiki/AC_motor

    A universal motor is a design that can operate on either AC or DC power. In universal motors the stator and rotor of a brushed DC motor are both wound and supplied from an external source, with the torque being a function of the rotor current times the stator current so reversing the current in both rotor and stator does not reverse the rotation.

  7. Quick-Acting Corgi Runs to Get Help After Owner Slips and ...

    www.aol.com/quick-acting-corgi-runs-help...

    A smart-thinking corgi saved the day after running to get help for his owner after she fell and hurt herself. Just after Christmas on Dec. 28, Kitchener, Ontario, resident Jess Parker was taking ...