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)
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Publisher:Robert L. Boylestad
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Q5. Assume that the following permanent outage data has been given for the system shown below:
System
Component
Outage Rate Average
138kV
(outages/yr) Repair
69kV
Time(h)
66
138Kv breakers
138KV Line
138/69KV transformer
69KV breakers
69KV bus
0.0058
to
0.627
0.0119
0.0045
10
360
44
0.011
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 parallei iine.
c. Total failure rate of the system.
d. Total mean time to repair of the system.
Transcribed Image Text:Q5. Assume that the following permanent outage data has been given for the system shown below: System Component Outage Rate Average 138kV (outages/yr) Repair 69kV Time(h) 66 138Kv breakers 138KV Line 138/69KV transformer 69KV breakers 69KV bus 0.0058 to 0.627 0.0119 0.0045 10 360 44 0.011 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 parallei iine. c. Total failure rate of the system. d. Total mean time to repair of the system.
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