Question 3 A 3100 V, 60HZ, three phase star connected synchronous motor has a synchronous impedance of 2+15j Q per phase. Operating with a line e.m.f. of 2500V, it just falls out of step of full load. The open circuit e.m.f will be excited at a certain value where it will just remain synchronism at 50% above rated torque. At this point, calculate: a) the input power at full load b) the current at full load c) power factor at full load
Question 3 A 3100 V, 60HZ, three phase star connected synchronous motor has a synchronous impedance of 2+15j Q per phase. Operating with a line e.m.f. of 2500V, it just falls out of step of full load. The open circuit e.m.f will be excited at a certain value where it will just remain synchronism at 50% above rated torque. At this point, calculate: a) the input power at full load b) the current at full load c) power factor at full load
Introductory Circuit Analysis (13th Edition)
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Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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![Question 3
A 3100 V, 60Hz, three phase star connected synchronous motor has a synchronous
impedance of 2+15j N per phase. Operating with a line e.m.f. of 2500V, it just falls out of
step of full load. The open circuit e.m.f will be excited at a certain value where it will just
remain synchronism at 50% above rated torque. At this point, calculate:
a) the input power at full load
b) the current at full load
c) power factor at full load](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F37a18a0d-10fe-4105-acf8-27757e838495%2F52c94ef4-0311-41ed-9e23-16d60cf63a79%2Fluln8ok_processed.png&w=3840&q=75)
Transcribed Image Text:Question 3
A 3100 V, 60Hz, three phase star connected synchronous motor has a synchronous
impedance of 2+15j N per phase. Operating with a line e.m.f. of 2500V, it just falls out of
step of full load. The open circuit e.m.f will be excited at a certain value where it will just
remain synchronism at 50% above rated torque. At this point, calculate:
a) the input power at full load
b) the current at full load
c) power factor at full load
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