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https://repositori.uma.ac.id/handle/123456789/31358| Title: | Pengukuran Pentanahan pada Pemutus Tenaga dan Pemisah di Pangkalan Penyulang Jaringan Distribusi Overhead di PLN ULP Tarutung |
| Other Titles: | Grounding Measurement of Circuit Breakers and Disconnectors at the Feeder Base of the Overhead Distribution Network at PLN ULP Tarutung |
| Authors: | Maulana, Thofa |
| metadata.dc.contributor.advisor: | Azmi, Fadhillah |
| Keywords: | Pentanahan;Pemutustenaga;Pemisah;Distribusi;Overhead |
| Issue Date: | Nov-2026 |
| Publisher: | Universitas Medan Area |
| Series/Report no.: | NPM;228120013 |
| Abstract: | Pentanahan merupakan bagian penting dalam sistem distribusi tenaga listrik yang berfungsi untuk melindungi peralatan dan memastikan keselamatan kerja terhadap gangguan listrik. Masalah umum yang sering terjadi di lapangan adalah tingginya nilai tahanan tanah yang melebihi standar yang ditetapkan oleh PT PLN, yaitu maksimum 5 ohm, sehingga dapat mengurangi keandalan sistem proteksi pada peralatan pemutus tenaga (PMT) dan pemisah (PMS). Untuk mengatasi permasalahan tersebut, dilakukan pengukuran pentanahan pada pangkalan penyulang jaringan distribusi overhead PT PLN ULP Tarutung menggunakan alat earth tester dengan metode fall of potential. Berdasarkan hasil pengukuran awal, diperoleh nilai tahanan pentanahan rata-rata sebesar 12,1 ohm yang belum memenuhi standar. Sebagai solusi, dilakukan perbaikan dengan menambah elektroda pentanahan, memperbaiki sambungan konduktor, dan menjaga kelembapan tanah di sekitar elektroda. Setelah perbaikan dilakukan, hasil pengukuran ulang menunjukkan nilai tahanan tanah menurun menjadi rata-rata 3,2 ohm, yang telah memenuhi standar PT PLN. Dengan demikian, sistem pentanahan pada pemutus tenaga dan pemisah di pangkalan penyulang jaringan distribusi overhead PT PLN ULP Tarutung dinyatakan layak dan aman untuk mendukung keandalan sistem distribusi listrik.. Grounding is a crucial component of electric power distribution systems, serving to protect equipment and ensure operational safety against electrical faults. A common issue encountered in the field is soil resistance exceeding the maximum 5-ohm standard established by PT PLN, which compromises the reliability of protection systems for circuit breakers (PMT) and disconnectors (PMS). To address this, grounding measurements were conducted at the overhead distribution feeder terminal of PT PLN ULP Tarutung using an earth tester and the "fall-of-potential" method. Initial measurements yielded an average grounding resistance of 12.1 ohms, failing to meet the required standard. Remedial measures were implemented, including the addition of grounding electrodes, the repair of conductor connections, and the maintenance of soil moisture around the electrodes. Subsequent measurements showed that the average soil resistance dropped to 3.2 ohms, thereby complying with PT PLN standards. Consequently, the grounding system for the circuit breakers and disconnectors at the PT PLN ULP Tarutung overhead distribution feeder terminal is deemed adequate and safe for supporting the reliability of the electricity distribution system. |
| Description: | 35 Halaman |
| URI: | https://repositori.uma.ac.id/handle/123456789/31358 |
| Appears in Collections: | Laporan Kerja Praktik (LKP) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| LKP - Thofa Maulana - 228120013 - Fulltext.pdf | LKP Fulltext | 1.01 MB | Adobe PDF | View/Open |
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