A large 3-phase, 4000 V, 60 Hz, squirrel- induction motor draws a current of 23 cage 385 A and a total active power of 2344 kW when operating at full-load. The correspon- ding speed is accurately measured and is found to be 709.2 r/min. The stator is con- nected in wye and the resistance between two stator terminals is 0.10 2. The total iron losses are 23.4 kW and the windage and friction losses are 12 kW. Calculate the following: a. The power factor at full-load b. The active power supplied to the rotor c. The total I'R losses in the rotor d. The load mechanical power [kW], torque [kN-m], and efficiency [%] 24 If we slightl.
A large 3-phase, 4000 V, 60 Hz, squirrel- induction motor draws a current of 23 cage 385 A and a total active power of 2344 kW when operating at full-load. The correspon- ding speed is accurately measured and is found to be 709.2 r/min. The stator is con- nected in wye and the resistance between two stator terminals is 0.10 2. The total iron losses are 23.4 kW and the windage and friction losses are 12 kW. Calculate the following: a. The power factor at full-load b. The active power supplied to the rotor c. The total I'R losses in the rotor d. The load mechanical power [kW], torque [kN-m], and efficiency [%] 24 If we slightl.
Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter6: Power Flows
Section: Chapter Questions
Problem 6.61P
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