Evaluasi Koordinasi Proteksi Akibat Penambahan Pembangkit Dan Rekonfigurasi Jaringan Di Joint Operation Body Pertamina-Petrochina East Java (JOB P-PEJ), Tuban

Yahya, Achmad Marzuki (2016) Evaluasi Koordinasi Proteksi Akibat Penambahan Pembangkit Dan Rekonfigurasi Jaringan Di Joint Operation Body Pertamina-Petrochina East Java (JOB P-PEJ), Tuban. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Joint Operation Body (JOB) Pertamina-Petrochina East Java adalah sebuah kerjasama dua perusahaan besar berskala internasional yang sedang melakukan eksplorasi di Indonesia. Untuk meningkatkan produksi pada Central Processing Area (CPA) ditambahkan dua pembangkit dengan daya 4X600HP, 4.16kV. Dengan penambahan beban dan pembangkit muncul permasalahan pada sistem kelistrikannya, yaitu sering terjadi padam total (blackout) pada saat terjadi gangguan, sehingga kontinuitas daya terganggu. Melalui tugas akhir ini dilaksanakan evaluasi koordinasi proteksi pada Joint Operation Body (JOB) Pertamina-Petrochina East Java yang tepat dalam mendeteksi dan mengisolir gangguan sehingga tidak mengganggu sistem yang berjalan dan mencegah kerusakan peralatan listrik. Dari hasil plot koordinasi kurva arus waktu kondisi existing dapat diketahui bahwa terdapat misscoordination dan overlaping. Melalui hasil analisis dan perhitungan manual direkomendasikan penyetelan pick up rele arus lebih dan penyetelan grading time rele. Rele yang perlu disetel ulang adalah rele arus lebih gangguan fasa (overcurrent relay) dan rele arus lebih gangguan tanah (ground fault relay). Setting rele dengan penambahan pengaman pada rele 88. Dengan memakai konfigurasi stand alone harus ditambahkan trafo sebesar 4 MVA pada sisi outgoing generator centaur 2 sehingga dapat digunakan data Load Flow & Short Circuit. ================================================================================================================== Joint Operation Body (JOB) Pertamina-Petrochina East Java is a collaboration of two international companies that are conducting exploration in Indonesia. To increase production at Central Processing Area, two power plants with 4x600 HP, 4.16 kV, respectively are needed. The addition of load and generators emerging some problems in the electrical system, such blackout so that the power continuity is interrupted. This final project discuss about evaluation of protection coordination at JOB P-PEJ to detect and isolate the interference so the electrical equipments are prevented from damage. From result of a current curve coordination plot at existing condition, there are misscoordination and overlapping. By analytical result and manual calculation, setting of pick up relay and grading time relay are recommended. Relay that need to be reset is interference phase overcurrent relay (overcurrent relay) and relay overcurrent ground fault (ground fault relay). Set the relay by adding more protection at relay 88. By using stand alone configuration, the addition of 4 MVA transformator on the outgoing side of the centaur generator 2 can be used with Load Flow and Short Circuit.

Item Type: Thesis (Undergraduate)
Additional Information: RSE 621.319 1 Yah e
Uncontrolled Keywords: Gangguan, koordinasi proteksi, rele arus lebih gangguan fasa
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK201 Electric Power Transmission
Divisions: Faculty of Industrial Technology > Electrical Engineering > 20201-(S1) Undergraduate Thesis
Depositing User: Users 13 not found.
Date Deposited: 11 Jul 2017 08:25
Last Modified: 28 Dec 2018 02:22
URI: http://repository.its.ac.id/id/eprint/41991

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