Q5. Assume that the following permanent outage data has been given for the system shown below:SystemComponentOutage Rate Average138kV(outages/yr) Repair69kVTime(h)66138Kv breakers138KV Line138/69KV transformer69KV breakers69KV bus0.0058to0.6270.01190.004510360440.011Assuming that 132Kv bus is 100% reliable and determine the following:a. Total failure rate for one parallel line.b. Total mean time to repair for one parallei iine.c. Total failure rate of the system.d. Total mean time to repair of the system.

(a) In the given figure each parallel line consists of 138kV breaker, 138 kV line, Transformer and…

Q5. Assume that the following permanent outage data has been given for the system shown below: System Component Outage Rate Average (outages/yr) Repair Time(h) 138KV 69kV 138KV breakers 138KV Line 138/69Kv transformer 69Kv breakers 69Kv bus 0.0058 66 0.627 10 0.0119 0.0045 0.011 360 44 Assuming that 132Kv bus is 100% reliable and determine the following: a. Total failure rate for one parallel line. b. Total mean time to repair for one parallel iine. c. Total failure rate of the system. d. Total mean time to repair of the system.

Q5. Assume that the following permanent outage data has been given for the system shown below: System Component Outage Rate Average (outages/yr) Repair Time(h) 138KV 69kV 138KV breakers 138KV Line 138/69Kv transformer 69Kv breakers 69Kv bus 0.0058 66 0.627 10 0.0119 0.0045 0.011 360 44 Assuming that 132Kv bus is 100% reliable and determine the following: a. Total failure rate for one parallel line. b. Total mean time to repair for one parallel iine. c. Total failure rate of the system. d. Total mean time to repair of the system.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Problem #2: A transformer is fed from a generator via a 5-cycle breaker. Generator reactance are: X"=18%, X'=25%, Xe=120%. A three-phase fault occurs at the load side of the breaker when the transformer was unloaded. Find: A)The sustained short circuit current in the breaker. B) Initial symmetrical rms current in the breaker. C) Maximum dc short circuit component in the breaker.
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estion 9 The fault current level of a circuit breaker used in a transmission line with phase voltage 2.2 kV and breaking capacity 50 MVA is yet ......kA. vered -ked out of Flag question estion 10 The voltage between lines in a transmission line is the maximum value of the sine waveform. yet vered Select one: -ked out of O True Flag question O False
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