Assignment 1 Weightage: 20% Department of Electronics and Communication Engineering Power System Reliability and Plannin

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Assignment 1 Weightage 20 Department Of Electronics And Communication Engineering Power System Reliability And Plannin 1 (106.03 KiB) Viewed 21 times

Assignment 1 Weightage: 20% Department of Electronics and Communication Engineering Power System Reliability and Planning End of Year 1 2 3 (Open Book) 1. A power plant has installed 250 Transformers and at the end of each year, the number of surviving transformers in each year was reported. 4 5 جـامـعـة الـشـرقـيـة 6 A' SHARQIYAH UNIVERSITY Relay No. 11 23 25 33 Number of Remaining Transformers 244 239 214 197 185 168 Compute: a) annual reliability at the end of the fourth year, b) the reliability of the transformers in six years, and c) the failure rate in sixth year. [2+2+4= 08] 2. Let X be the random occurrence number of failed components among 5 independent and identical components. Each component has a failure probability of 0.01 during an operating period. Find the probability of exactly one failure. [02] 3. An electric power system supplied from a total of 101 generating units. Calculate the probability of having (a) 2, (b) 7, and (c) 11 units being out of service simultaneous, given that the outage rate (q) of each unit is 0.06. [2+2+2=06] 4. Thirty-five protective relays were tested for 250 hours. Five relays failed during the test. Calculate the estimated failure rate when the failures occurred after the following test times: [04] Hours at Failure 65 159 171 196 Instructions: 1. It is an open book; therefore, the maximum time has been allowed to submit the assignment 2. Display Date: 19-06-2022 3. Submission Date: 04-07-2022 4. Late submission will have a marks deduction (1) per day 5. Assignment should be handwritten neat, clean, and have a clear understanding