Lightning performance analysis of transmission lines using the EMTP

Martínez, J.A.; Castro‐Aranda, Ferley

doi:10.1109/pes.2003.1267186

Cited by 13 publications

(9 citation statements)

References 6 publications

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“…Oleh karena itu yang perlu di lakukan adalah penelitian tentang kinerja jaringan transmisi 150 kV akibat sambaran petir menggunakan ATPDraw. ATP telah digunakan untuk mempelajari kinerja jalur transmisi petir [2]. Untuk memperoleh profil tegangan akibat tegangan lebih atau sama dari batas kristis lompatan api pada isolator, atau hasil arus menggunakan perangkat ATPDraw, hasil kondisi titik BFO yang terjadi pada suatu menara transmisi 150 kV Sungguminasa-Tallasa dan menggunakan teori gelombang berjalan untuk menghitung gangguan kilat pada menara, yaitu gangguan karena lompatan api balik back flaschover).…”

Section: Pendahuluanunclassified

Efek Penurunan Tahanan Pembumian Tower 150 kV Terhadap Sistem Penyaluran Petir

Lembang

Manjang

Kitta

2018

jpe

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Telah terjadi gangguan di sistem transmisi SULSELRABAR mengakibatkan terjadinya black out pada hari selasa 19 Januari 2016 pukul 14.13 WITA. Gangguan tersebut terjadi bersamaan dengan hujan dan angin kencang disertai petir yang begitu keras menyebabakan lepasnya beban sebesar 746 MW menimbulkan kerugian PLN sebesar Rp. 8.355.200.000. Penelitian ini bertujuan untuk mengetahui dan menganalisa dampak terjadinya back flashover yang mempengaruhi jaringan 150 kV akibat surja petir di lingkungan tropis, mengetahui dan menganalisa besar tegangan impuls dijaringan transmisi 150 kV akibat ack flashover, dan mengetahui solusi yang paling efektif mengurangi surja petir.Dari hasil penelitian ini efek nilai pentanahan akibat sambaran petir di sistem jaringan transmisi 150 kV khususnya di sepanjang line transmisi GI Sungguminasa – GI Tallasa berdampak pada kerusakan eralatan gardu induk dan pemadaman meluas. Untuk menganalisis hal tersebut digunakan metode simulasi ATPdraw, metode gelombang berjalan dan metode paralelisasi guna menemukan ampak back flashover pada setiap nilai pentanahan tower. Respon terhadap nilai pentanahan tiap tower, terdapat 41 tower berdampak terjadi loncatan api balik sudah melebihi BIL isolator. Hasil penelitian ini menujukkan penurunan nilai pentanahan metode paralelisasi menggunakan tembaga penambahan arang dan garam dapat mereduksi besarnya nilai pentanahan senilai 0,78 ohm, dapat mempengaruhi kestabilan sistem saat terjadi sambaran petir.

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Section: Pendahuluanunclassified

Efek Penurunan Tahanan Pembumian Tower 150 kV Terhadap Sistem Penyaluran Petir

Lembang

Manjang

Kitta

2018

jpe

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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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“…Shielding failure flashover rate N SF can be estimated according to several methods, such as electrogeometrical model [8,[22][23][24][25], numerical analysis model [11], analytical [12], EMTP [13] and estimation methods [10]. In this paper, the shielding failure flashover rate N SF is estimated according to the method presented in [8], where it is associated to a required minimum current I min to cause a line insulation flashover and is defined as follows:…”

Section: Flashover Rate Of a Transmission Linementioning

confidence: 99%

“…In an effort to maintain failure rates in a low level, providing high power quality and avoiding damages and disturbances, plenty of lightning performance estimation studies have been conducted [1][2][3][4][5][6][7][8][9][10][11][12][13] and several design methodologies have been proposed [14][15][16][17][18][19]. Designing appears to be the most important issue in the lightning performance of a transmission line, not only because differences in the design parameters values affect significantly the lightning performance but also because is practically impossible to make improvements and modifications in an existing transmission line.…”

Section: Introductionmentioning

confidence: 99%