why induction motor is called rotating transformer?

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why induction motor is called rotating transformer?
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Answer :

Induction motor works on same principal as transformers work ie faradays law of electromagnetic induction. ie IM called as rotating transformer 

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Why Induction motor is called rotating transformer?

Description : Why Induction motor is called rotating transformer?

Last Answer : Transformer has two sides: primary & secondary. Transformer transforms energy from primary to secondary by induction. Similarly, Induction motor has primary (stator) & secondary (rotor). Voltage is ... magnitude i.e. the process of induction Thus induction motor treated as a rotating transformer.

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Description : what is mean by rotating transformer ?

Last Answer : Induction motor is a rotating transformer

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Last Answer : Production of Rotating Magnetic Field in Three-phase Induction Motor: In three-phase induction motor, the three-phase stator windings are displaced in space by 120° and their three-phase currents are displaced ... time by 120°. Such fluxes give rise to the resultant rotating magnetic field.

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Define rotating magnetic field of an induction motor.

Description : Define rotating magnetic field of an induction motor. 

Last Answer : Rotating magnetic field of an induction motor: A rotating magnetic field is a magnetic field that has moving polarities in which its opposite poles rotate about a central point or axis.

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Description : A 4-pole induction motor, supplied by a slightly unbalanced three-phase 50 Hz source, is rotating at 1440 rpm. The electrical frequency in Hz of the induced negative sequence current in the rotor is  (A) 100 (B) 98 (C) 52 (D) 48

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An 8-pole, 50Hz, three-phase induction motor is running at 705rpm and has a rotor copper loss of 5kW.

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The rotor winding of a three phase wound rotor induction motor is equipped with a three phase diode...

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If starting winding of a single-phase induction motor is left in the circuit, it will?

Last Answer : If starting winding of a single-phase induction motor is left in the circuit, it will draw excessive current and overheat.

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If a single phase induction motor runs slower than normal, the most likely defect is?

Last Answer : If a single phase induction motor runs slower than normal, the most likely defect is worn bearings.

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The rotor slots, in an induction motor, are usually not quite parallel to the shaft because it?

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Speed torque characteristic of a repulsion induction motor is similar to that of a D.C.?

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How is a three phase cage induction motor self starting?

Description : How is a three phase cage induction motor self starting?

Last Answer : Any type of induction motor is self starting. Because the reason for torqe production require two flux displaced by some angle theta.If theta is constant with time then torqe will be constant;if ... torqe also pulsating. In induction motor this angle theta is not pulsating.so it is self starting 

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How does a single phase induction motor work?

Description : How does a single phase induction motor work?

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Description : Is induction motor is self starting?

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What is the definition of induction motor?

Description : What is the definition of induction motor?

Last Answer : its working on magnetic base made by coils and its work with 1 phase or 3 phase ac or dc supply

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What is the function of induction motor?

Description : What is the function of induction motor?

Last Answer : while you give supply to motor its motor run on magnet base 

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At which time power factor of the induction motor is low?

Description : At which time power factor of the induction motor is low?

Last Answer : The power factor of the inducction motor is low at the time of starting as compare to while the induction motor is running.

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What is mean by plugging in three phase induction motor?

Description : What is mean by plugging in three phase induction motor?

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explain the working of single phase induction motor.

Description : explain the working of single phase induction motor.

Last Answer : Stator has two winding namely main winding and auxiliary winding.when single phase ac supply is given to the motor,its produces alternating field.this field cut by a cage rotor.so some emf ... due to this emf,rotor flux produced.the interaction between two fluxes produce torque.so rotor rotates.

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which single phase induction motor has highest starting torque?

Last Answer : Capacitor start motor has high torque in starting

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is induction motor ac or dc?

Last Answer : Induction motor is a AC motor it is also known as asynchronous motor .

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can induction motor be used as generator?

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Induction motor

Description : Induction motor

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Description : Types of three phase induction motor rotor

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