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All Journal Journal of Education Technology Information Social Sciences and Health Golden Ratio of Data in Summary
Rahmadhania, Rahmadhania
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Computer Science & IT Economics, Econometrics & Finance Education Neuroscience Nursing Public Health Social Sciences

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Analisa Pengaruh Arus Bocor terhadap Penurunan Daya Tahan Dielektrik pada Isolator Bersih 150 kV Rahmadhania, Rahmadhania; Warmi, Yusreni; Amalia, Sitti; Bandri, Sepannur; Dewi, Arfita Yuana
Journal of Education Technology Information Social Sciences and Health Vol 4, No 1 (2025): March 2025
Publisher : CV. Rayyan Dwi Bharata

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57235/jetish.v4i1.4835

Abstract

Saluran transmisi 150 kV Koto Panjang – Payakumbuh di Sumatera Barat sering terganggu akibat sambaran petir karena tingginya kepadatan petir di wilayah tersebut. Flashover pada isolator, baik akibat polusi maupun kondisi ekstrem di lingkungan, dapat memicu terjadinya arus bocor sehingga menurunkan daya tahan dielektrik dan mempengaruhi kinerja jaringan. Penelitian ini menganalisis pengaruh arus bocor terhadap daya tahan dielektrik pada isolator bersih yang mengalami flashover, menggunakan metode Hileman dengan memasukkan nilai ESDD, NSDD, dan data eksperimen dari laboratorium tegangan tinggi UGM. Hasil penelitian ini menunjukkan peningkatan arus bocor menurunkan daya tahan dielektrik; penurunan terbesar daya tahan dielektrik berdasarkan eksperimen adalah 0,95% dari nilai standar BIL ketika arus bocor meningkat 12,56%, sementara metode Hileman memprediksi penurunan 0,92% ketika peningkatan arus bocor sebesar 11,98%. Studi ini menggarisbawahi pentingnya perbaikan desain dan pemeliharaan isolator serta strategi mitigasi untuk meningkatkan keandalan jaringan di wilayah rawan petir.
Brand and Country of Origin Towards Consumer Attitudes in Choosing Smartphones Apia Septira, Ika; Nur Kholiza, Heni; Rahmadhania, Rahmadhania
Golden Ratio of Data in Summary Vol. 4 No. 2 (2024): May - October
Publisher : Manunggal Halim Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52970/grdis.v4i2.534

Abstract

As technology advances, smartphone devices become a fascinating topic for conversation. The growth of multiple smartphone brands as choices appears to be inextricably linked to the relevance of customer attitudes in deciding which smartphone to use. The growth of multiple smartphone brands as choices appears to be inextricably linked to the relevance of customer attitudes in deciding which smartphone to use. Furthermore, when choosing a smartphone, shoppers consider the product's nation of origin. This study uses a quantitative approach method. Involving the 100-person Dumai City community. The findings of the partial analysis indicate that brands have a positive and significant effect on consumer attitudes and country of origin variables have a positive but not significant effect on consumer attitudes. Brand and country of origin together have a positive and significant effect on consumer attitudes in the Dumai City community. The result of the Determination Coefficient is 21.3%, with the remaining 78.7% impacted by other variables.
Co-Authors Apia Septira, Ika Arfita Yuana Dewi Nur Kholiza, Heni Sepannur Bandri Yusreni Warmi