Evaluasi Sistem Pentanahan Pada Power Plant PLTP Geo Dipa Dieng Unit-1

Gunawan, Indra (2023) Evaluasi Sistem Pentanahan Pada Power Plant PLTP Geo Dipa Dieng Unit-1. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Sistem pentanahan merupakan komponen krusial dalam sistem kelistrikan yang berperan penting dalam mengurangi kerugian saat terjadi gangguan pentanahan. Dengan adanya sistem pentanahan, arus gangguan dapat dengan cepat tersebar ke segala arah dan dialirkan ke dalam tanah. Penelitian ini bertujuan untuk melakukan evaluasi terhadap sistem pentanahan di Power Plant PLTP Geo Dipa Dieng Unit-1 menggunakan standar IEEE Std. 80-2000 melalui simulasi ETAP. Penelitian ini juga bertujuan untuk mengevaluasi pengaruh dari penambahan konduktor pentanahan, kedalaman penanaman konduktor grid dan rod pentanahan, serta jenis tanah terhadap sistem pentanahan. Hasil simulasi menunjukkan bahwa nilai tegangan sentuh yang didapatkan adalah sebesar 769,8 V, sedangkan tegangan sentuh yang dapat ditoleransi adalah sebesar 1785,2 V. Selain itu, nilai tegangan langkah yang didapatkan adalah sebesar 195,2 V, dengan tegangan langkah yang dapat ditoleransi sebesar 6648,6 V. Nilai GPR yang dihasilkan adalah sebesar 1666,5 V, dan tahanan pentanahannya juga cukup baik yaitu sebesar 0,539 Ω. Berdasarkan standar IEEE Std. 80/2000, sistem pentanahan yang ada di PLTP Geo Dipa Dieng Unit-1 masih dalam kondisi aman. Selain itu, simulasi penambahan konduktor pentanahan menunjukkan penurunan nilai tegangan sentuh dan tegangan langkah, sehingga sistem pentanahan dapat lebih optimal. Variasi dalam kedalaman penanaman konduktor pentanahan dan jenis tanah juga mempengaruhi kondisi sistem pentanahan.
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Grounding system is a crucial component in an electrical system, particularly in minimizing and preventing losses during grounding faults. With a proper grounding system in place, fault currents can quickly disperse in all directions and flow into the ground. This research aims to evaluate the grounding system at Power Plant PLTP Geo Dipa Dieng Unit-1 using the IEEE Std. 80-2000 standard through ETAP simulation. The study also intends to assess the influence of adding grounding conductors, depth of installation for grid conductors and grounding rods, and soil types on the grounding system. The simulation results show that the obtained touch voltage is 769.8 V, while the tolerable touch voltage is 1785.2 V. Additionally, the obtained step voltage is 195.2 V, with a tolerable step voltage of 6648.6 V. The resulting Ground Potential Rise (GPR) value is 1666.5 V, and the grounding resistance is satisfactory at 0.539 Ω. Based on the IEEE Std. 80-2000 standard, the existing grounding system at Power Plant PLTP Geo Dipa Dieng Unit-1 is considered safe. Furthermore, the simulation of adding grounding conductors indicates a decrease in touch voltage and step voltage, thus optimizing the grounding system. Variations in the depth of grounding conductor installation and soil types also affect the grounding system's performance.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Sistem Pentanahan, IEEE Std. 80-2000, Tegangan Langkah, Tegangan Sentuh, Grounding System, IEEE Std. 80-2000, Step Voltage, Touch Voltage
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1318 Geothermal Power Plants T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1322.6 Electric power-plants T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK3401 Insulation and insulating materials T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK351 Electric measurements.
Divisions:	Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20201-(S1) Undergraduate Thesis
Depositing User:	Indra Gunawan
Date Deposited:	23 Jul 2023 14:51
Last Modified:	23 Jul 2023 14:51
URI:	http://repository.its.ac.id/id/eprint/98942

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