Transcription of 10. Starting Method for Induction Motors
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10. Starting Method for Induction Motors
3rd Class / AC MachinesDr. Inaam Ibrahim3410. Starting Method for Induction MotorsA 3-phase Induction motor is theoretically self stator of an Induction motor consists of 3-phase windings,which when connected to a 3-phase supply creates a rotatingmagnetic field. This will link and cut the rotor conductorswhich in turn will induce a current in the rotor conductors andcreate a rotor magnetic field. The magnetic field created by therotor will interact with the rotating magnetic field in the statorand produce , 3-phase Induction Motors employ a startingmethod not to provide a Starting torque at the rotor, butbecause of the following reasons;1) Reduce heavy Starting currents and prevent motor ) Provide overload and no-voltage are many methods in use to start 3-phase inductionmotors. Some of the common methods are; Direct On-Line Starter (DOL) Star-Delta Starter Auto Transformer Starter3rd Class / AC MachinesDr. Inaam Ibrahim35 Rotor Impedance Starter Power Electronics StarterDirect On-Line Starter (DOL)The Direct On-Line (DOL) starter is the simplest and themost inexpensive of all Starting methods and is usually usedfor squirrel cage Induction Motors .
10. Starting Method for Induction Motors A 3-phase induction motor is theoretically self starting. ... Therefore, 3-phase induction motors employ a starting ... In this method a single stator winding is divided into few coil groups. The terminals of all these groups are brought out.
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