Fauziyah, Nur (2019) Studi Koordinasi Proteksi Dengan Mempertimbangkan Arc Flash Pada PT. Indonesia Power UP Suralaya Unit 5. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
PT. Indonesia Power UP Suralaya Unit 5 merupakan salah satu pembangkit terbesar dengan kapasitas 1x600 MW yang berbahan bakar batubara. Dimana pada sistem kelistrikannya belum pernah dilakukan review mengenai koordinasi proteksi. Koordinasi proteksi memiliki peran yang sangat penting untuk menjaga kontinuitas dan meningkatkan keandalan sistem. Oleh karena itu dibutuhkan koordinasi proteksi yang tepat serta mempertimbangkan arc flash untuk mencegah kerusakan peralatan akibat gangguan dan meminimalisir bahaya energi arc flash bagi para pekerja. Pada Tugas Akhir ini dilakukan studi koordinasi proteksi pada PT. Indonesia Power UP Suralaya Unit 5. Hal yang akan dilakukan adalah menentukan setting koordinasi Over Current Relay dan Ground Fault Relay yang tepat dan menganalisa besarnya insiden energi arc flash yang terjadi pada setiap bus untuk menentukan batas keamanan bagi para pekerja berdasarkan standar IEEE 1584-2002. Serta menentukan alat pelindung diri yang digunakan sesuai kategori insiden energi arc flash berdasarkan standar NFPA 70E-2015. Hasil dari Tugas Akhir ini adalah setelah dilakukan resetting terdapat penurunan insiden energi arc flash pada bus 10,5 kV SWGR-5A, 10,5 kV SWGR-5B, 3,3 kV SWGR-5A dan 10,5 kV SWGR-5B yang semula 21,814 cal/cm2, 21,843 cal/cm2, 14,076 cal/cm2 dan 13,939 cal/cm2 menjadi 16,906 cal/cm2, 16,906 cal/cm2, 13,387 cal/cm2 dan 13,517 cal/cm2. Hal ini dikarenakan nilai FCT lebih kecil setelah dilakukan koordinasi proteksi dengan tepat. Nilai FCT saat existing 0,55 dan 0,65 detik setelah di resetting menjadi 0,4 dan 0,6 detik.
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PT. Indonesia Power Up Suralaya Unit 5 is one of the largest Coal Power Plant in Indonesia which is has capacity 1 x 600 MW a day. But unfortunately the electrical systems never been reviewed, especially for Protection Coordination. Protection Coordination has very important role to maintain continuity and improve the ability of the electrical systems. Therefore, it is needed appropriate Protection Coordinatian with considering Arc Flash to protect equipment from any disturbances and minimize the danger of Arc Flash energy that impact to the workers. In this Final Project carried out Study of Protecetion Coordination in PT. Indonesia Power UP Suralaya Unit 5. The main task is to determine the apropriate coordination setting for Over Current Relay and Ground Fault Relay and analyze the magnitude of arc flash energy incidents that occurs on each bus to determine safety limits for workers based on IEEE 1584-2002 standard. And determining the personal protective equipment used in accordance with the arc flash energy categories based on NFPA 70E-2015 standard. The result of this final project is decreased magnitude of arc flash energy incidents after resetting on buses 10,5 kV SWGR-5A, 10,5 kV SWGR-5B, 3,3 kV SWGR-5A and 10,5 kV SWGR-5B from 21,814 cal/cm2, 21,843 cal/cm2, 14,076 cal/cm2 dan 13,939 cal/cm2 become 16,906 cal/cm2, 16,906 cal/cm2, 13,387 cal/cm2 and 13,517 cal/cm2. This is because the value of FCT become smaller after Protection Coordination carried out. The value of FCT from 0,55 and 0,65 seconds become 0,4 and 0,6 seconds after resetting.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSE 621.317 Fau s-1 2019 |
| Uncontrolled Keywords: | Arc Flash, Insident Energy, Fault Clearing Time, Standar IEEE 1584-2002, NFPA 70E-2015 |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2861 Electric relays. Protective relays--Security measures. |
| Divisions: | Faculty of Electrical Technology > Electrical Engineering > 20201-(S1) Undergraduate Thesis |
| Depositing User: | Nur Fauziyah |
| Date Deposited: | 13 Mar 2023 07:24 |
| Last Modified: | 13 Mar 2023 07:24 |
| URI: | http://repository.its.ac.id/id/eprint/63655 |
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