بيت /rotor construction of induction motor
Jan 12, 2017· Induction Motor • Induction motors are used worldwide in many residential, commercial, industrial, and utility applications. • Induction Motors transform electrical energy into mechanical energy. • It can be part of a pump or fan, or connected to some other form of mechanical equipment such as a winder, conveyor, or mixer.
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3 Phase Induction Motor Construction These three phase motors consist of a stator and a rotor and between which no electrical connection exists. These stator and rotors are constructed with the use of highmagnetic core materials in order to reduce hysteresis and eddy current losses.
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Shaded Pole Induction Motor is a single phase induction motor which can run without the capacitor that is why it is called Capacitor Less Single phase Induction Motor. Construction of Shaded Pole Induction Motor. STATOR of Shaded Pole Induction Motor. ROTOR of Shaded Pole Induction Motor. Working of Shaded Pole Induction Motor.
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Working Principle of an Induction Motor. The relative motion between the rotating magnetic field and the rotor conductor induces the current in the rotor conductors. As the current flows through the conductor, the flux induces on it. The direction of rotor flux is same as that of the rotor current.
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The wound rotor motor is a variant of the squirrel cage motor arrangement. The stator of a wound rotor motor is constructed and operates in the same way as the squirrel cage motor. The rotor conductors, though, are not short circuited but are terminated to a set of slip rings (as in the diagram above), these slip rings do not have power applied to them, and they are there purely for application of resistances.
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Jan 31, 2015· The slip ring induction motor could be used for industrial wires where variable speed and high starting torque are prime requirements. The stator of slip ring induction motor is very much the same as that of the squirrel cage induction motor, but the construction of its rotor is very much winding can be either star or delta connected depending upon the design.
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The rotor of three phase AC induction motor is different for the slipring and squirrelcage induction motors. Rotor in slipring type consists of heavy aluminum or copper bars shorted on both ends of the cylindrical rotor.
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Jul 12, 2013· The induction motor never rotates with the synchronous speed but rotates at a speed which is slightly less than the synchronous speed. The rotor construction is of squirrel cage type. In this type, rotor consists of uninsulated copper or aluminium bars, placed in the slots.
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Cage rotor machines (also called squirrel cage machines) are the most common type of induction motor. In a cage rotor design, there are solid conductors in slots on the rotor. The ends of the conductors are shortcircuited at each end of the rotor using an "endring". For smallmedium sized machines (up to a few hundred horsepower) the rotor conductors are cast using aluminum. This construction makes the .
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Nov 18, 2015· INDUCTION MOTORS:INDUCTION MOTOR TORQUESPEED CHARACTERISTICS. and the magnetic fields) and the rotor frequency are very small. Since the relative motion is small, the induced voltage in the rotor bars ER is very small and the resulting current IR is small. Also, since the rotor frequency is small ( fr sfe ),...
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Rotor of Three Phase Induction Motor The rotor of three phase induction motor is mounted on a shaft. It is a hollow laminated core having slots on its outer periphery.
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An induction motor, 3 phase induction motor or asynchronous motor is an AC electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding. An induction motor can therefore be made without electrical connections to the rotor.
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The three phase induction motor is the most widely used electrical 80% of the mechanical power used by industries is provided by three phase induction motors because of its simple and rugged construction, low cost, good operating characteristics, absence of commutator and good speed regulation. In three phase induction motor the power is transferred from stator to rotor winding ...
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Jan 06, 2019· In synchronous AC motors, the rotor turns at exactly the same speed as the rotating magnetic field; in an induction motor, the rotor always turns at a lower speed than the field, making it an example of what's called an asynchronous AC motor. The theoretical speed of the rotor in an induction motor depends on the frequency of the AC supply and the number of coils that make up the stator and, .
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Jun 18, 2019· Squirrel cage induction motor construction. Any Induction Motor has main two parts: a Stator and a Rotor. The construction of Stator of the induction motor is almost the same as other motors. But the rotor construction differs with respect to the type of motor. Slip ring induction motor is made up from wound rotor and squirrel cage induction motor is made up from the squirrel cage rotor. Stator
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Jan 10, 2019· Rotor body made up from silicon steel stampings. The construction of rotor looks like a cage of a squirrel. So, this motor is known as the squirrel cage induction motor. 2) Wound Rotor Induction Motor: The rotor is made up of lamination with the slots on the outer periphery. Threephase rotor winding place in the slots in such a way that the number of stator poles are same as the number of rotor poles.
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Jun 16, 2015· In the motor the slip rings, brushes are provided. Compared to squirrel cage rotor the rotor construction is not simple. Cylindrical laminated core rotor with heavy bars or copper or aluminium or alloys are used for conductors. Cylindrical laminated core rotor is .
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Almost 90 percent of induction motors arc squirrelcage type, because this type of rotor has the simplest and most rugged construction imaginable and is almost indestructible. The rotor consists of a cylindrical laminated core with parallel slots for carrying the rotor conductors which, it should be noted clearly, are not wires but consist of ...
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Induction motor works on the principle of induction where electromagnetic field is induced into the rotor when rotating magnetic field of stator cuts the stationary rotor. Induction machines are by far the most common type of motor used in industrial, commercial or residential settings. It is a three phase AC motor.
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A squirrelcage rotor is the rotating part of the common "squirrel cage" induction motor. It consists of a cylinder of steel laminations, with aluminum or copper conductors embedded in its surface.
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WoundRotor Motors — High Torque and Adjustable Speed. Also, they incorporate brushes and slip rings. The windings (bars on a laminated core) on a squirrelcage motor are shortcircuited by an end ring. The windings on a woundrotor motor are not shortcircuited, but are connected in a 3phase arrangement.
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The main construction of induction motor is composed of two parts stator and rotor. In addition, there are end bells, bearings, motor frame and other components. The following will give more details about the structure of threephase induction motor or asynchronous motor.
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Construction of Double Squirrel Cage Induction Motor. A double squirrel cage induction motor consists of a rotor which has two independent cages one above the other in the same slot. A double squirrel cage rotor is shown in the figure. The upper slot conductors from the outer cage and the lower slot conductors form the inner cage.
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This rotating field induces currents in the rotor by electromagnetic is static part of construction of induction motor. Rotor of induction motor The rotor, mounted on a shaft, is a hollow laminated core having slots on its outer periphery.
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