Turnip, Tiourly Tasya Angelina (2024) Evaluasi Konfigurasi Sistem Koordinasi Proteksi Di PT Smelting Akibat Penambahan Kapasitas Daya PLN Dengan Metode Kurva Arus Waktu. Other thesis, Institut Teknologi Sepuluh Nopember.
Text
5022201068-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 October 2026. Download (4MB) | Request a copy |
Abstract
Pada industri, sistem proteksi merupakan hal yang penting untuk mempertahankan keandalan penyaluran daya sehingga proses produksi dapat tetap berjalan. PT Smelting merupakan perusahaan peleburan dan pemurnian tembaga yang membutuhkan energi listrik yang besar untuk beban-beban industrinya. Saat ini PT Smelting mendapatkan supply yang berasal dari PLN dan 6 generator yang terinterkoneksi dengan PT Linde Gresik. Penambahan beban dari 32 MW menjadi 55 MW dan penambahan daya dari PLN dari 20 MVA menjadi 35 MVA menyebabkan terjadinya perubahan konfigurasi dan setting proteksi pada sistem kelistrikan pada PT Smelting. Setting proteksi yang telah dilakukan setelah penambahan daya PLN belum mempertimbangkan gangguan saat terjadi pada sisi PLN maupun sisi generator yang menyebabkan time grading belum memenuhi standar koordinasi proteksi yang benar. Oleh karena itu, dibutuhkan adanya evaluasi sistem proteksi sebagai upaya yang diperlukan dengan mempertimbangkan arah dan level short circuit kontribusi dari generator maupun PLN. Hal ini bertujuan agar menghasilkan koordinasi proteksi yang dapat mengisolir gangguan dengan memperhatikan level short circuit dari seluruh sumber. Pada Tugas Akhir ini dilakukan evaluasi sistem koordinasi proteksi rele arus lebih gangguan fasa, rele arus lebih gangguan tanah dan menambahkan rele Directional Overcurrent Relay (67) sehingga dapat mengurangi waktu operasi rele untuk mengamankan gangguan terdekat. Dari hasil evaluasi ini didapatkan re-setting yang memiliki selektivitas dan dapat bekerja secara koordinatif sesuai dengan standar CTI yang dapat menghilangkan gangguan secepat mungkin untuk menjaga kontiunitas supply listrik ke beban pada PT Smelting.
==================================================================================================================================
In the industry, protection systems are essential for maintaining the reliability of power delivery, ensuring that the production process can continue uninterrupted. PT Smelting, a copper smelting and refining company, requires a significant amount of electrical energy for its industrial loads. Currently, PT Smelting receives power from PLN and six generators interconnected with PT Linde Gresik. The increase in load from 32 MW to 55 MW and the increase in power supply from PLN from 20 MVA to 35 MVA have led to changes in the configuration and protection settings of PT Smelting's electrical system. The protection settings implemented after the increase in PLN power supply have not yet considered disturbances on both the PLN and generator sides, causing the time grading to fall short of proper protection coordination standards. Therefore, an evaluation of the protection system is necessary, considering the direction and level of short circuit contributions from both the generators and PLN. This aims to achieve protection coordination that can isolate disturbances by considering the short circuit levels from all sources. This final project evaluates the protection coordination system of phase fault overcurrent relays, ground fault overcurrent relays, and adds Directional Overcurrent Relay (67) to reduce the relay operation time for securing the nearest disturbance. The results of this evaluation provide new settings with selectivity that can operate in coordination according to CTI standards, ensuring disturbances are eliminated as quickly as possible to maintain the continuity of the power supply to the loads at PT Smelting
Item Type: | Thesis (Other) |
---|---|
Uncontrolled Keywords: | PT Smelting, Koordinasi Proteksi, Overcurrent, DOCR PT Smelting, Coordination Protection, Overcurrent, DOCR |
Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1010 Electric power system stability. Electric filters, Passive. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK3030 Electric power distribution systems T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7868.P6 Power supply |
Divisions: | Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20201-(S1) Undergraduate Thesis |
Depositing User: | Tiourly Tasya Angelina Turnip |
Date Deposited: | 29 Jul 2024 04:10 |
Last Modified: | 29 Jul 2024 04:10 |
URI: | http://repository.its.ac.id/id/eprint/109799 |
Actions (login required)
View Item |