a) Explain how the power flows in an induction machine, where losses occur and how they can be calculated, along with typical percentage values that you would expect to observe.
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- What are the various losses in an induction motor? On what factors do they depend? IV. V. List the different types of stray load losses in an induction motor.1. 2. 4. 4. •.. .... ..... .... E.g. • 2. A 3 phase, 460 V, 10hp, 60 Hz, four-pole induction machine delivers rated output power at a slip of 0.05. determine the a. Synchronous speed and motor speed b. speed of the rotating air gad field c. frequency of the rotor circuit d. Slip in rpm e. Speed of the rotor field relative to the i. rotor structure ii. Stator structure iii Stator rotating field f. haft torque of this motor at the rated load? ... .... Equivalent Circuit • The induction motor consists of a two magnetically connected systems: Stator and rotor • This is similar to a transformer that also has two magnetically connected systems: primary and secondary windings. • The induction motor is similar to the transformer with the excention that its secondarv windings are free to.IV. What are the various losses in an induction motor? On what actors do they depend?
- I. What is the effect of load on the efficiency of an induction motor? I. Explain the term air-gap power or power developed in the rotor and shaft power. How these terms are related to each other? II. Derive an expression for the rotor copper loss in terms of slip and input to the rotor? What are the various losses in an induction motor? On what IV. factors do they depend? V. List the different types of stray load losses in an induction motor.Here it is the equivalent circuit of and induction motor and it is per phase circuit my question is name for me the variable for example R1 is the winding resistance and so an the all variable and please show me a pic of the real machine with the variable for example for R1 happens because of the winding i need to see the winding in the real machine, please help me to understand well1. Explain the term air-gap power or power developed in the rotor and shaft power. How these terms are related to each other?2. Derive an expression for the rotor copper loss in terms of slip and input to the rotor?3. What are the various losses in an induction motor? On what factors do they depend?4. List the different types of stray load losses in an induction motor.
- a) Explain how the power flows in an induction machine, where losses occur and how they can be calculated, along with typical percentage values that you would expect to observe. b) Briefly explain the differences between synchronous motors and induction motors. You should describe the construction and operation of each motor, and how power is distributed to the rotor.Q / What is the benefit, purpose and conclusions of making single-phase induction motors ..?What is the relationship between slip s) and load (Pa) in an induction motor? Please explain.
- I.What is the effect of load on the efficiency of an induction motor? II. Explain the term air-gap power or power developed in the rotor and shaft power. How these terms are related to each other? III. Derive an expression for the rotor copper loss in terms of slip and input to the rotor? IV. What are the various losses in an induction motor? On what factors do they depend? V. List the different types of stray load losses in an induction motor.6- In a stepper motor, how is the speed of rotation determined? a) By the current supplied to the motor. b) By the magnitude of the voltage applied. c) By the load applied to the motor. d) By the frequency of the waveforms used. 7- A transformer core is laminated to a) reduce hysteresis loss b) reduce eddy current losses c) reduce copper losses d) reduce all above losses 8- An induction motor with 580 r.p.m. speed at 60 Hz will have a) 8 poles b) 6 poles c) 4 poles d) 2 poles 9- If any two phases for an induction motor are interchanged a) the motor will run in reverse direction b) the motor will run at reduced speed c) the motor will not run d) the motor will burn 10- No-Load speed of which of the following motor will be highest? a) Shunt motor b) Series motor c) Short-Shunt compound motor d) Long-Shunt compound motor1.5 A 10‐pole, 380 ‐V, 50 Hz, D‐connected three‐phase induction motor is rotating a quarry belt conveyor. The machine has the following parameters, referred to the stator, on a per phase basis: Stator Parameters Winding Resistance................0.19 Ω ......... Winding Reactance.................1.12 Ω.......... Rotor Parameters Winding Resistance......................0.29 Ω Winding Reactance.....................1.12 Ω Magnetising Reactance................................16.8 Ω Equivalent Core‐loss Resistance....................900 Ω. The friction and windage losses are 320 W. When the motor runs at its rated slip of 2.6 %. Determine: 1.5.1 The stator current. 1.5.2 Estimate the Output torque of the motor under the rated conditions. 1.5.3 The Motor…