Different types of Starter for Motor

Different types of Starter for Motor 1)DC -TWO point starter A two-point starter is used for starting dc motor which has the problem of over-speeding due to loss of load from its shaft. -Three point starter A three-point starter is used for starting a dc shunt or compound motor. The coil of the hold-on electromagnet is connected is series with the shunt-field coil. - Four point starter The...

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Different types of Induction Motor

Different types of Induction Motor SINGLE PHASE INDUCTION MOTOR 1.    Split phase induction motor There are various types of self-starting motors, known as split phase motors. Such motors have a starting winding displaced 90 electrical degrees from the main or running winding. In some types, the starting winding has a fairly high resistance, which causes the current in this...

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Why LT motors are delta connected and HT motors are star connected?

Why LT motors are delta connected and HT motors are star connected?There is both reason technical and commercial. 1.     In star, phase current is same as line current. But phase voltage is 1/1.732 times line voltage. So insulation required in case of HT motor is less. 2.     The starting current for motors is 6 to 7 times full load current. So start-up...

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Brief Idea of Induction Motor

Brief Idea of Induction MotorInduction motor: is an energy conversion device that converts electrical energy into useful rotational kinetic energy, it is an application of the Faraday's law of induction. Sectional View 3-ph Induction Motor   Drawing of Induction Motor Induction motor are...

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Different type of motors...

Different type of motors..... Squirrel Cage Motor   Electric Motor An Electric motor is a machine which converts electric energy into mechanical energy. Its action is based on the principle that when a current-carrying conductor is placed in a magnetic field, it experiences a mechanical...

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Essential or need of starter with motor.

Essential or need of starter with motor. Motors below 1 Hp is directly connect without starter because their armature resistance is very high and they have ability to afford the high current due to high resistance. So the Armature winding safe from the high starting current.   But ...

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