Influence of contamination distribution in characterizing the flashover phenomenon on outdoor insulator

Salem, Ali Ahmed; Rahman, Rahisham Abd; Ishak, Mohd Taufiq; Lau, Kwan Yiew; Abdul‐Malek, Zulkurnain; Al-Ameri, Salem Mgammal; Al-Gailani, Samir A.; Ghoneim, Sherif S. M.

doi:10.1016/j.asej.2023.102249

Cited by 11 publications

(5 citation statements)

References 27 publications

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“…The process of insulator fouling occurs naturally as a result of sediment sticking on the insulator's surface. In contrast, insulators are installed on the tower pole of a 150 kV overhead transmission line in Koto Panjang [6], [16], [22].…”

Section: Resultsmentioning

confidence: 99%

“…P is the air pressure in millimeters of mercury (mmHg), T is the temperature in degrees °C and RH is the relative humidity in percent [22]…”

Section: Methodsmentioning

confidence: 99%

“…Where V 0 is the actual test voltage and Rh is the humidity correction factor [22] In this research, the type of insulator used for a test is a ceramic insulator, and its characteristics are illustrated in Table 1 and Figure 1. The test required 14 pieces of insulators, seven of which were classified as dusty and seven mossy, to observe the differences between the characteristics and effects of dust and moss fouling on insulators.…”

Section: Methodsmentioning

confidence: 99%

“…In this study, insulator fouling occurs naturally due to sediment that sticks on the insulator's surface during installation on the tower pole of the 150 kV overhead lines in Koto Panjang. Insulator fouling can be caused by dust, mud, and plants [6], [16], [22]. This contaminated insulator has been used for abaout 2-5 years.…”

Section: Methodsmentioning

confidence: 99%

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The Effect of Humidity and Temperature on Flashover in High Voltage Transmission Line Ceramic Insulators

Amalia,

Azhar,

Hidayatullah

et al. 2024

TEM Journal

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This research aims to determine the flashover voltage on the surface of porcelain insulators on 150 kV transmission lines located in Payakumbuh, where the insulators are contaminated with dust and moss due to the effects of temperature and humidity. The experiment is carried out with only up to seven insulator plates due to the limitations of the available apparatus. For the further testing, a trend analysis is applied. According to the experimental results, a rise in temperature around the insulator will increase the flashover voltage value and accelerate the potential for a flashover event. This happens because high temperatures can reduce the insulator's dielectric strength and insulation resistance and increase the risk of flashover. The dielectric strength values decreased with an average decrease of 44.62% per insulator plate for dusty insulators and 45.08% for each plate for mossy insulators. The results aim to minimize flashover on transmission lines in hilly areas with relatively high contamination.

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Section: Resultsmentioning

confidence: 99%

“…P is the air pressure in millimeters of mercury (mmHg), T is the temperature in degrees °C and RH is the relative humidity in percent [22]…”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

The Effect of Humidity and Temperature on Flashover in High Voltage Transmission Line Ceramic Insulators

Amalia,

Azhar,

Hidayatullah

et al. 2024

TEM Journal

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“…Insulators in the transmission lines are components responsible for supporting the electrical power grid and isolating the electrical potential [1]. When there is an accumulation of contamination on the surface of these components, electrical discharges may occur [2][3][4]. Contamination is difficult to measure because its presence does not represent an imminent failure, besides the rain can help clean the insulators [5].…”

Section: Introductionmentioning

confidence: 99%

Optimized hybrid YOLOu‐Quasi‐ProtoPNet for insulators classification

Stefenon

Singh

Souza

et al. 2023

IET Generation Trans & Dist

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To ensure the electrical power supply, inspections are frequently performed in the power grid. Nowadays, several inspections are conducted considering the use of aerial images since the grids might be in places that are difficult to access. The classification of the insulators' conditions recorded in inspections through computer vision is challenging, as object identification methods can have low performance because they are typically pre‐trained for a generalized task. Here, a hybrid method called YOLOu‐Quasi‐ProtoPNet is proposed for the detection and classification of failed insulators. This model is trained from scratch, using a personalized ultra‐large version of YOLOv5 for insulator detection and the optimized Quasi‐ProtoPNet model for classification. For the optimization of the Quasi‐ProtoPNet structure, the backbones VGG‐16, VGG‐19, ResNet‐34, ResNet‐152, DenseNet‐121, and DenseNet‐161 are evaluated. The F1‐score of 0.95165 was achieved using the proposed approach (based on DenseNet‐161) which outperforms models of the same class such as the Semi‐ProtoPNet, Ps‐ProtoPNet, Gen‐ProtoPNet, NP‐ProtoPNet, and the standard ProtoPNet for the classification task.

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Hypertuned-YOLO for interpretable distribution power grid fault location based on EigenCAM

Stefenon,

Seman,

Klaar

et al. 2024

Ain Shams Engineering Journal

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Influence of contamination distribution in characterizing the flashover phenomenon on outdoor insulator

Cited by 11 publications

References 27 publications

The Effect of Humidity and Temperature on Flashover in High Voltage Transmission Line Ceramic Insulators

The Effect of Humidity and Temperature on Flashover in High Voltage Transmission Line Ceramic Insulators

Optimized hybrid YOLOu‐Quasi‐ProtoPNet for insulators classification

Hypertuned-YOLO for interpretable distribution power grid fault location based on EigenCAM

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