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  2. Korndörfer autotransformer starter - Wikipedia

    en.wikipedia.org/wiki/Korndörfer_Autotransformer...

    Reduced starting current is desirable where the electrical grid is not of sufficient capacity, or where the driven load cannot withstand high starting torque. One basic method to reduce the starting current is with a reduced voltage autotransformer with taps at 50%, 65% and 80% of the applied line voltage; once the motor is started 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. DC motor - Wikipedia

    en.wikipedia.org/wiki/DC_motor

    The motor speed varies as a non-linear function of load torque and armature current; current is common to both the stator and rotor yielding current squared (I^2) behavior [citation needed]. A series motor has very high starting torque and is commonly used for starting high inertia loads, such as trains, elevators or hoists. [2]

  5. Dahlander pole changing motor - Wikipedia

    en.wikipedia.org/wiki/Dahlander_pole_changing_motor

    Dahlander motor wiring for low speed (delta connection) and high speed (double star connection) The Dahlander motor is based on a 'consequent pole' connection. The primary factor in determining the speed of an induction motor is the number of poles, given by the formula = (RPM) where

  6. Starter (engine) - Wikipedia

    en.wikipedia.org/wiki/Starter_(engine)

    An automobile starter motor (larger cylinder). The smaller object on top is a starter solenoid which controls power to the starter motor and engages the Bendix drive.. A starter (also self-starter, cranking motor, or starter motor) is a device used to rotate (crank) an internal-combustion engine so as to initiate the engine's operation under its own power.

  7. DIN 72552 - Wikipedia

    en.wikipedia.org/wiki/DIN_72552

    distributor with two separate circuits, high voltage 7 terminal on ballast resistor, to distributor 15 battery+ from ignition switch 16 15a from ballast resistor to coil and starter motor 16 15e battery+ from ignition switch, also when starter motor runs Preheat (Diesel engines) 15 preheat in + 17 start 19 preheat (glow) Starter; 45 starter relay

  8. Autotransformer - Wikipedia

    en.wikipedia.org/wiki/Autotransformer

    Reduced starting current is desirable where the electrical grid is not of sufficient capacity, or where the driven load cannot withstand high starting torque. One basic method to reduce the starting current is with a reduced voltage autotransformer with taps at 50%, 65% and 80% of the applied line voltage; once the motor is started the ...

  9. Wound rotor motor - Wikipedia

    en.wikipedia.org/wiki/Wound_rotor_motor

    Wound-rotor motors can be started with low inrush current, by inserting high resistance into the rotor circuit; as the motor accelerates, the resistance can be decreased. [ 1 ] Compared to a squirrel-cage rotor , the rotor of the slip ring motor has more winding turns; the induced voltage is then higher, and the current lower, than for a ...