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Q51/ A 37.3 KW, 4-pole, 50 Hz induction motor has a friction and windage torque of 22 N-m. the stator losses equal rotor CU loss. Calculate the power input to the stator when delivering full-load output at a speed of 1440 r.p.m. Ans[44kw] Q52/ A 50 Hz, 8-pole, 3-phase induction motor delivers an output of 3.1 KW at a slip of 0.02. The losses due to friction and windage are 100 W. find the value of gross torque in N-m. Ans[41.58N.m]

Q51/ A 37.3 KW, 4-pole, 50 Hz induction motor has a friction and windage torque of 22 N-m. the stator losses equal rotor CU loss. Calculate the power input to the stator when delivering full-load output at a speed of 1440 r.p.m. Ans[44kw] Q52/ A 50 Hz, 8-pole, 3-phase induction motor delivers an output of 3.1 KW at a slip of 0.02. The losses due to friction and windage are 100 W. find the value of gross torque in N-m. Ans[41.58N.m]

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Q50/ An 8-pole, 3-phase, 50 Hz induction motor is taking 50 KW and running at 725 r.p.m. stator losses are 1.2 kW and friction losses 1.8 KW. find (i) rotor CU loss and (ii) efficiency of the motor Ans[1.627kW, 90.75%] Q51/ A 37.3 KW, 4-pole, 50 Hz induction motor has a friction and windage torque of 22 N-m. the stator losses equal rotor CU loss. Calculate the power input to the stator when delivering full-load output at a speed of 1440 r.p.m. Ans[44kw] Q52/ A 50 Hz, 8-pole, 3-phase induction motor delivers an output of 3.1 KW at a slip of 0.02. The losses due to friction and windage are 100 W. find the value of gross torque in N-m. Ans[41.58N.m]
Transcribed Image Text:Q50/ An 8-pole, 3-phase, 50 Hz induction motor is taking 50 KW and running at 725 r.p.m. stator losses are 1.2 kW and friction losses 1.8 KW. find (i) rotor CU loss and (ii) efficiency of the motor Ans[1.627kW, 90.75%] Q51/ A 37.3 KW, 4-pole, 50 Hz induction motor has a friction and windage torque of 22 N-m. the stator losses equal rotor CU loss. Calculate the power input to the stator when delivering full-load output at a speed of 1440 r.p.m. Ans[44kw] Q52/ A 50 Hz, 8-pole, 3-phase induction motor delivers an output of 3.1 KW at a slip of 0.02. The losses due to friction and windage are 100 W. find the value of gross torque in N-m. Ans[41.58N.m]
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