1) 13.8 kV, 100 MW, 50 Hz synchronous generator having a CT ratio of 10000/5A is grounded through neutral impedance Zn = 1.732. The pickup current of the earth fault relay is 10%. Calculate the percentage winding from the neutral will be unprotected. %3D 21.71% 15.31% 9.47% None of the above
1) 13.8 kV, 100 MW, 50 Hz synchronous generator having a CT ratio of 10000/5A is grounded through neutral impedance Zn = 1.732. The pickup current of the earth fault relay is 10%. Calculate the percentage winding from the neutral will be unprotected. %3D 21.71% 15.31% 9.47% None of the above
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![1) 13.8 kV, 100 MW, 50 Hz synchronous
generator having a CT ratio of 10000/5A is
grounded through neutral impedance Zn = 1.732.
The pickup current of the earth fault relay is 10%.
Calculate the percentage winding from the
neutral will be unprotected.
21.71%
15.31%
9.47%
None of the above](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6bd8f5d2-80bc-4406-b835-62ff4395c960%2F20fe528b-1157-44b1-8f4c-bac6249778e5%2Fcw57vxb_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1) 13.8 kV, 100 MW, 50 Hz synchronous
generator having a CT ratio of 10000/5A is
grounded through neutral impedance Zn = 1.732.
The pickup current of the earth fault relay is 10%.
Calculate the percentage winding from the
neutral will be unprotected.
21.71%
15.31%
9.47%
None of the above
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