P4. The following data is read on the name plate of a three-phase cage induction motor: output power Pout = 3 kW, input frequency f= 50 Hz, speed n = 2800 rpm, voltage V: = 380 V (line-to-line), efficiency n= 80%, power factor cosp = 0.92. If the stator windings are Y-connected, find: 1) the number of poles 2p, and the slip s, 2) the input current Is, and input power Pin. 3) the mechanical power Pm and electromagnetic power Pem. given rotational losses Prot= 120 W, 4) the shaft torque T and the electromagnetic torque Tem.
P4. The following data is read on the name plate of a three-phase cage induction motor: output power Pout = 3 kW, input frequency f= 50 Hz, speed n = 2800 rpm, voltage V: = 380 V (line-to-line), efficiency n= 80%, power factor cosp = 0.92. If the stator windings are Y-connected, find: 1) the number of poles 2p, and the slip s, 2) the input current Is, and input power Pin. 3) the mechanical power Pm and electromagnetic power Pem. given rotational losses Prot= 120 W, 4) the shaft torque T and the electromagnetic torque Tem.
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter35: Harmonics 916
Section: Chapter Questions
Problem 3RQ: Would a positive-rotating harmonic or a negative-rotating harmonic be more harmful to an induction...
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please hep solve problem 4 with explanation please
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