Bramantyo, Sam Ladena (2024) EVALUASI PROTEKSI GENERATOR 80,6 MVA PADA PLANT SMELTER NICKEL DI SULAWESI. Other thesis, Institut Teknologi Sepuluh November.
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Abstract
Generator adalah perangkat listrik yang mengubah energi mekanis menjadi energi listrik. Seperti halnya komponen listrik lainnya, generator juga rentan terhadap gangguan yang bisa disebabkan oleh berbagai faktor. Tujuan dari tugas akhir ini adalah mengevaluasi dan memastikan pengaturan perlindungan generator bekerja secara optimal sesuai. Metde yang digunakan meliputi simulasi di software ETAP dan penggunaan standar IEEE C37.102-2006. Rele daya balik (ANSI: 32) yang diatur pada 3.8% selama 5 detik, direkomendasikan untuk diubah menjadi 2% dengan waktu 2 detik sesuai rekomendasi IEEE C37.102. Rele hilang medan (ANSI: 40) dengan 1 zona pengaman, dianjurkan untuk menjadi 2 zona dengan metode positif offset, sesuai standar untuk perlindungan yang lebih baik. Rele arus lebih waktu tentu (ANSI: 50/51 Def) yang memerlukan penyesuaian pickup agar sesuai dengan rekomendasi IEEE C37.102, yaitu 2XFLA, serta penyesuaian waktu untuk mencegah misoperasi dengan rele lain. Rele tegangan berlebih (ANSI: 59) yang dievaluasi dengan setting 127V dan 138V, disarankan untuk diatur ulang menjadi 110V dan 150V serta waktu kerja sesuai standar. Rele pengaman rotor (ANSI: 64R) sudah benar dengan memastikan arus yang masuk kurang dari maksimum untuk melindungi rotor dengan benar. Rele diferensial (ANSI: 87) yang settingnya sudah cukup untuk melindungi generator dari gangguan internal maupun eksternal.
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Generator is a device that converts mechanical energy into electrical energy. Like other electrical components, generators are susceptible to disruptions caused by various factors. The aim of this undergraduate thesis is to evaluate and ensure that the generator protection settings operate optimally. The methods employed including simulations using ETAP software and refering to IEEE C37.102-2006 standards. The reverse power relay (ANSI: 32), originally set at 3.8% for 5 seconds, is recommended to be adjusted to 2% with a 2-second delay according to IEEE C37.102 guidelines. The field loss relay (ANSI: 40), equipped with a single protection zone, is recommended to be changed to two zones using positive offset methods, meeting standards for enhanced protection. The definite time overcurrent relay (ANSI: 50/51 Def) requires adjusting to its pickup current to 2 times FLA as per IEEE C37.102, with timing adjustments to prevent misoperation with other relays. The overvoltage relay (ANSI: 59), reevaluated with settings of 127V and 138V, should be reset to 110V and 150V respectively, with appropriate timing according to standards. The rotor protection relay (ANSI: 64R) seems to ensures correct operation by preventing currents below maximum to protect the generator rotor effectively. The differential relay (ANSI: 87) settings are deemed adequate for safeguarding the generator against internal and external faults.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Existing, Evaluasi, Gangguan, Generator, Rele, Proteksi, Exisinting, Evaluation, Fault, Generator, Protection, Relay |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1001 Production of electric energy or power T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1519.S68 Hydroelectric power plants T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK152.A75 Electrical engineering--Safety measures |
| Divisions: | Faculty of Electrical Technology > Electrical Engineering > 20201-(S1) Undergraduate Thesis |
| Depositing User: | ladena bramantyo sam |
| Date Deposited: | 02 Aug 2024 07:12 |
| Last Modified: | 02 Aug 2024 07:12 |
| URI: | http://repository.its.ac.id/id/eprint/112488 |
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