Ikhsan, Iik Nurul (2019) Studi Koordinasi Proteksi dengan Mempertimbangkan Arc Flash di PT. Chandra Asri Petrochemical Plant Butadiene Cilegon Banten. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
PT Chandra Asri Petrochemical merupakan salahsatu perusahaan yang beregerak dibidang petrokimia Indonesia, bertempat di desa Ciwandan, Cilegon, Banten. Salah satu plant yang dimiliki oleh PT Chandra Asri adalah plant Butadiene yang memproduksi produk kimia yang merupakan salahsatu bahan baku dalam pembuatan ban. Sistem kelistrikan PT Chandra Asri Petrochemical dibagi pada tiga level tegangan yaitu 20 kV, 6kV, dan 0,38 kV. Untuk menjaga kontinuitas dan kendalannya dilakukan koordinasi proteksi dengan melakukan setting ulang pada relay arus lebih (Over current relay) dan Ground fault Relay dan yang ada di PT Chandra Asri Petrochemical plantt Butadiene. Sebelum melakukan setting ulang, system kelistrikan dibagi menjadi dua tipikal yaitu tipikal 1 dan tipikal 2. Pada tipikal 1 dan 2 relay- relay yang bekerja belum terkoordinasi dengan baik karena terdapat relay-relay yang saling berpotongan. Relay yang saling berpotongan akan menyebabkan relay yang seharusnya membackup mengalami tripping terlebih dahulu. Hal-hal lain yang perlu dipertimbangkan dalam melakukan setting adalah mempertimbangkan munculnya arc flash. Berdasarkan IEEE 1584-2004 yang membahas tentang bahaya arc flash sebagai pedoman untuk menentukan jarak aman, besar incident energy, dan memberikan PPE yang sesuai berdasarkan incident energy saat terjadi gangguan hubung singkat. Dengan melakukan setting ulang pada bus PN-201 berdasarkan hasil simulasi koordinasi proteksi yang telah dilakukan terjadi peningkatan incident energy saat keadaan existing bernilai 4,125 calc/m2 dan saat dilakukan setting ulang bernilai 5,768 cal/cm2
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PT Chandra Asri Petrochemical is one of the companies engaged in the Indonesian petrochemical field, located at the village of Ciwandan, Cilegon, Banten. One of the plants owned by PT Chandra Asri is the Butadiene plant which produces chemical products which are one of the raw materials in making tires. PT Chandra Asri Petrochemical
electrical system is divided into three voltage levels, 20 kV, 6kV and 0.38 kV. To maintain continuity and control, protection coordination is carried out by re-setting the Over current relay and Ground fault Relay and those at PT Chandra Asri Petrochemical plant Butadiene. Before re-setting, the electrical system is divided into two typical types, namely typical 1 and typical 2. In typical 1 and 2 relays that work have not been well coordinated because there are intersecting relays. Intersecting relays will cause the relay that should be backup to experience tripping first. Other things to consider in setting up are considering the emergence of a arc flash. Based on IEEE 1584-2004 which discusses the dangers of arc flash as a guideline for determining safe distance, incident energy, and providing PPE according to incident energy when a short circuit occurs. By re-setting the PN-201 bus based on the simulation coordination protection results that have been carried out there has been an increase in incident energy when the existing condition is worth 4,125 cal / cm2 and when the re-setting is done it is worth 5,768 cal /cm2.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSE 621.317 Ikh s-1 2019 |
| Uncontrolled Keywords: | Coordinating Phase Overcurrent Protection, Arc Flash, Incident Energy, Phase Overcurrent Relay, Ground Fault Relay |
| 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: | iik nurul ikhsan |
| Date Deposited: | 22 Feb 2023 01:35 |
| Last Modified: | 22 Feb 2023 01:35 |
| URI: | http://repository.its.ac.id/id/eprint/63539 |
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