Thermal Analysis in Gas Insulated Transmission Lines Using an Improved Finite-Element Model

Wu, Xia; Shu, Naiqiu; Li, Hongtao; Li, Ling

doi:10.11591/telkomnika.v11i1.1247

Cited by 5 publications

(4 citation statements)

References 15 publications

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“…Until recently, no critical failure has been reported from any installation in the world [18]. GILs have several advantages, such as low transmission losses and high transmission efficiency, low capacitive load, low electromagnetic field, high reliability, no electric and thermal aging, low environmental influence and a high level of safety concerning surrounding equipment or nearby personnel [21][22][23][24][25][26][27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

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Determination of the Operating Temperature of the Gas-Insulated Transmission Line

2020

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Gas-insulated lines (GILs) have been increasingly used as high-current busducts for high-power transmission. Temperature is one of the most important factors affecting the performance and ampacity of GILs. In this paper, an analytical method was proposed to determine the temperature of a three-phase high-current busduct in the form of a single pole GIL. First, power losses in the phase conductors and enclosures were determined analytically with the skin, and proximity effects were taken into account. The determined power losses were used as heat sources in thermal analysis. Considering the natural convection and radiation heat transfer effects, the heat balance equations on the surface of the phase conductors and the screens were established, respectively. Subsequently, the temperature of the phase conductors and the enclosures were determined. The validation of the proposed method was carried out using the finite element method and laboratory measurements.

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Section: Introductionmentioning

confidence: 99%

“…In the last three decades, the prediction of the operating temperature of high-current busducts has been the subject of a number of investigations [7,8]. Most of them deal with specific busduct configurations [4,5,10,[12][13][14][15]17,27,28,31]. The heating of busducts has been studied both numerically and experimentally.…”

Section: Introductionmentioning

confidence: 99%

Determination of the Operating Temperature of the Gas-Insulated Transmission Line

2020

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“…Comparing with the overhead lines and XLPE-insulated cables, the advantages of GIL are obvious [1][2][3]. The power transmission capacity of GIL is comparable with overhead lines, while the transmission losses are much lower.…”

Section: Introductionmentioning

confidence: 99%

“…Significant effort is focusing on the derivation of more efficient calculation methods [6]. Finite element method (FEM), due to its flexibility in representing the field domain and dealing with complicated GIL installation conditions, has prevailed in the field of GIL modeling [1] [7]. Various implementations of FEM to thermal distribution of GIL are encountered in the technical literature.…”

Section: Introductionmentioning

confidence: 99%