Analisis Perhitungan Arus Bocor Melalui Tegangan Gagal Thermal Pada Transformator 150/20 kV di GIS Simpang. (Analysis of Leakage Current Calculations Through Thermal Failure Voltage on 150/20 kV Transformers in GIS Simpang).

Maulana, Ade Ivan (2024) Analisis Perhitungan Arus Bocor Melalui Tegangan Gagal Thermal Pada Transformator 150/20 kV di GIS Simpang. (Analysis of Leakage Current Calculations Through Thermal Failure Voltage on 150/20 kV Transformers in GIS Simpang). Undergraduate thesis, Universitas 17 Agustus 1945 Surabaya.

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Abstract

Arus bocor merupakan arus yang mengalir menembus atau melalui permukaan isolasi. Isolasi berfungsi untuk memisahkan secara elektrik duah buah penghantar, sehingga tidak terjadi kebocoran arus. Dan masalahnya jika terjadi kebocoran arus maka akan berdampak negatif bagi keselamatan, dan kinerja peralatan. Maka dari itu penulis melakukan penelitian analisis perhitungan arus bocor akibat tegangan gagal thermal pada transformator 150/20 kV di GIS Simpang dengan melakukan pengujian arus bocor selama 1 minggu sekali sebagai solusi untuk mengatasi kebocoran arus. Dan dilakukannya pengujian arus bocor secara teratur akan berdampak positif dari segi keselamatan maupun komponen kelistrikannya. Pada pengukuran arus bocor akan menunjukkan hasil bila di ukur dengan clamp meter pada saat pengukuran dilakukan. Dan hasil pengukuran arus bocor dapat diketahui dari minggu pertama memiliki nilai arus bocor sebesar 1,3 A dari titik phasa T trafo 2, minggu kedua memiliki nilai arus bocor sebesar 1,3 A dari titik phasa T trafo 2, minggu ketiga memiliki nilai arus bocor sebesar 2,2 A dari titik phasa T trafo 2, dan minggu keempat memiliki nilai arus bocor sebesar 2,5 A dari titik phasa T trafo 1 , dari hasil pengukuran arus bocor tersebut dapat diketahui bahwa trafo 1 minggu keempat memiliki hasil nilai arus bocor paling besar jika dibandingkan dari hasil trafo 1 dan trafo 2 di 3 minggu sebelumnya pada waktu pengukuran. Dan selain pengukuran arus bocor juga dilakukan dengan pengukuran kabel incoming 20kV dengan menggunakan thermovisi sebagai pendeteksi suhu pada kabel tersebut. Pengukuran thermovisi memiliki standart tidak melebihi 15 ℃ dari beberapa phasa kabel yang diukur.

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