Lightning performance assessment of Hellenic high voltage transmission lines

Ekonomou, Lambros; Gonos, Ioannis F.; Stathopulos, I.A.

doi:10.1016/j.epsr.2007.05.018

Cited by 18 publications

(8 citation statements)

References 21 publications

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“…The above equation has been applied on operating Hellenic high voltage transmission lines, giving quite satisfactory results in comparison with the real records of outage rate [28].…”

Section: Flashover Rate Of a Transmission Linementioning

confidence: 95%

An optimal design method for improving the lightning performance of overhead high voltage transmission lines

Ekonomou

Iracleous

Gonos

et al. 2006

Electric Power Systems Research

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“…The above equation has been applied on operating Hellenic high voltage transmission lines, giving quite satisfactory results in comparison with the real records of outage rate [28].…”

Section: Flashover Rate Of a Transmission Linementioning

confidence: 95%

An optimal design method for improving the lightning performance of overhead high voltage transmission lines

Ekonomou

Iracleous

Gonos

et al. 2006

Electric Power Systems Research

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“…7,36,Ch. 4], as well as, for example, [19,[37][38][39][40], for the in-depth treatment of this subject. Only a brief outline of the methodology, as far as it is needed for the purpose of this paper, will be presented here.…”

Section: Estimation Of the Number Of Direct Lightning Strikes To Tranmentioning

confidence: 99%

Monte Carlo method for estimating backflashover rates on high voltage transmission lines

Sarajčev

2015

Electric Power Systems Research

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“…Many approaches have been developed the last decades in order to estimate with accuracy the high voltage transmission lines' lightning performance [7][8][9][10][11][12][13][14]. Shielding failure flashover rate N SF can be estimated according to the method presented in Reference [7] (where it is associated to a required minimum current I min to cause a line insulation flashover) as follows:…”

Section: Lightning Performance Estimation Of Transmission Linesmentioning

confidence: 99%

Cost related optimum design method for overhead high voltage transmission lines

Ekonomou

Fotis

Maris

2007

Int Trans Elec Energy Syst

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SUMMARYThe design of transmission lines is often the key issue for the existence or absence of failures caused by lightning. Detailed engineering studies are usually performed by electric power utilities for the design of new transmission lines. However, there are also cases where the design is based simply on tradition or on utilities' standardization policy. The paper presents a cost related method for the optimum design of overhead high voltage transmission lines, which intends to reduce or even eliminate the lightning failures. Lightning failures' cost is related to design parameters' cost in order to calculate the optimum and most economic design parameter values. In order to validate the effectiveness of the proposed method, the method is applied on several operating Hellenic transmission lines of 150 and 400 kV, respectively, carefully selected among others, due to their high failure rates during lightning thunderstorms. Special attention has been paid on open loop lines, where a possible failure in them could bring the system out of service causing significant problems. The proposed parameters that occurred by the design method and which reduce the failure rates caused by lightning, are compared with the operating transmission lines' existing design parameters showing the usefulness of the method, which can be proved a valuable tool for the studies of electric power systems designers.

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Lightning performance assessment of Hellenic high voltage transmission lines

Cited by 18 publications

References 21 publications

An optimal design method for improving the lightning performance of overhead high voltage transmission lines

An optimal design method for improving the lightning performance of overhead high voltage transmission lines

Monte Carlo method for estimating backflashover rates on high voltage transmission lines

Cost related optimum design method for overhead high voltage transmission lines

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