HomeExam_2_Group_B

HomeExam_2_Group_B - Name :-_ Student ID# : _ EEL 3216 -...

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Name :-____________________ Student ID# : ___________________ EEL3216 – Home Exam # 2, Group B 1 EEL 3216 - Introduction to Power Systems Home Exam # 2, GROUP B (for those who had group A at test #2) Due November 4 th 2005, 4:00 pm Question Maximum Marks Actual Marks 1, a 10 1, b 5 1, c 5 2, a 10 2, b 15 2, c 10 2, d 5 3, a 10 3, b 10 3, c 15 3, d 5 Total 100 50% of the total marks reached above will be added to your marks from test #2 with a maximum of 100% for both exams together. Write on your own engineering paper.
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Name :-____________________ Student ID# : ___________________ EEL3216 – Home Exam # 2, Group B 2 Question 1 - Group B The stator of 3-phase, 2-pole AC machine produces a magnetic field rotating with 1500 rpm and a constant magnitude of 0.6 T. a) Complete the three equations below describing the waveforms of the currents that must flow in the three phase-coils in order to produce a rotating magnetic field. cos(2 ) cos(2 ) cos(2 ) aM b c iI t it π = =− b) What needs to be done with respect to the currents to reverse the direction of rotation of the magnetic field?
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HomeExam_2_Group_B - Name :-_ Student ID# : _ EEL 3216 -...

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