The Failure Rate Of Polyethylene Insulated Cable

Horton, W.F.; John, Abin

doi:10.1109/tdc.1979.712685

Cited by 9 publications

(4 citation statements)

References 2 publications

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“…The cable failure rate depends on several factors, such as voltage stress, age of cable line, insulation defects and design of cable [8]. Therefore, one of the factors that affect the combined transmission line reliability is age of cable, because of cable line failure rate increases by increasing cable line age [9].…”

Section: Abstract--mentioning

confidence: 99%

“…Also, parameters of k and n are constant values that depend on the kind of cable [8]. If the line L1 is not failed when an overvoltage occurred when surge arrester B1 operates suitable, route 1 will be constructed.…”

Section: Cablementioning

confidence: 99%

“…1, n=1 and k=0.06 (failures/100mile-year 2 ) [8]. Cable line failure rate can be calculated using Eq.…”

Section: Effect Of Cable Line Length On Reliability Indicesmentioning

confidence: 99%

“…With respect to equation (8), age of cable line effects on a failure rate of cable line. So, simulation has been performed for cross-linked polyethylene cable with length 10 (km) to determine variation rate in reliability indices by increasing age of a cable line.…”

Section: E Effect Of Cable Line Age On Reliability Indicesmentioning

confidence: 99%

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Maximum lightning overvoltage location and reliability indices in power system with combined transmission line

Sadeh

Damchi

2010

2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-La)

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Abstract--In recent years with the expansion of the power system and competing the electrical energy market, cause is to optimum designing power system and optimizing power system maintenance methods with decreasing unnecessary cost without affecting overall power system reliability.Combined transmission line is one of the factors that affect on power system reliability indices, because cable lines are manufactured with high voltage insulations, while high voltage insulations are known as weak points in the power system in view of reliability. Therefore, many efforts have been done for increasing high voltage reliability insulation, e.g. improving insulation endurance and optimizing insulation system design [5].Reliability analysis of the power system that contains combined line is very important because most faults on transmission lines are transient and these faults do not cause that overhead line be permanently out of service. Transient faults are typically caused by lightning activity, and they have a very short duration. Transient faults automatically clear by auto-reclose operation of the line circuit breakers. Automatic clearing operation time takes less than a second and clearing operation does not require human intervention. Whereas autoreclose operation can not clear cable insulation faults and also cable insulation does not restore like air insulated transmission line. Therefore, cable fault always causes that cable line completely be out of service [6]. Repairing damaged cable line takes several days or even some weeks [7].The cable failure rate depends on several factors, such as voltage stress, age of cable line, insulation defects and design of cable [8]. Therefore, one of the factors that affect the combined transmission line reliability is age of cable, because of cable line failure rate increases by increasing cable line age [9].In this paper, variations of the maximum overvoltage amount and location are analyzed by changing cable line length and number of spans before a cable line in the power system with a combined transmission line. Also, reliability analysis is performed for combined transmission line which the cable line is protected by surge arresters at both ends.

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Section: Abstract--mentioning

confidence: 99%

Section: Cablementioning

confidence: 99%

“…1, n=1 and k=0.06 (failures/100mile-year 2 ) [8]. Cable line failure rate can be calculated using Eq.…”

Section: Effect Of Cable Line Length On Reliability Indicesmentioning

confidence: 99%

Section: E Effect Of Cable Line Age On Reliability Indicesmentioning

confidence: 99%

See 2 more Smart Citations

Maximum lightning overvoltage location and reliability indices in power system with combined transmission line

Sadeh

Damchi

2010

2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-La)

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The failure rates of underground distribution system components

Horton

Goldberg

Backman³

Proceedings of the Twenty-Second Annual North American Power Symposium

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1,'iiderground distribution systems utilize a number of principal components. A list would include: Cable Distribution Transformers Switches Elbows Splices .A typical underground distribution feeder may contain of tlie orders of 100 miles of cable. 400 transformers, 100 switches, 2500 elbows and 1000 splices. A failure of any one of these components usually results in a wstained outage on the feeder which may involve hundreds of custoniers for a time duration measured in hour^..l'his papcl-provides estimates of the failure rates of underground distribution system components. The cstiiiintcs are based on information collected from a number of utility sources throughout the United States of America. They represent considerable field experiences of these sources over time spans of the order of 10 years. These data have been analyzed to produce die most comprehensive estimates of failure rates of underground components known to the authors.

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Effect of combined transmission line (overhead line/cable) on power system reliability indices

Damchi

Sadeh

2010

2010 4th International Power Engineering and Optimization Conference (PEOCO)

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The Failure Rate Of Polyethylene Insulated Cable

Cited by 9 publications

References 2 publications

Maximum lightning overvoltage location and reliability indices in power system with combined transmission line

Maximum lightning overvoltage location and reliability indices in power system with combined transmission line

The failure rates of underground distribution system components

Effect of combined transmission line (overhead line/cable) on power system reliability indices

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