Abraham, MTC (2019) Evaluasi Koordinasi Proteksi Relay Softstarter Motor Pompa Loading LSWR terhadap Relay Distribusi dan Relay Proteksi Generator 900-06-GE.06 PT Pertamina (Persero) RU II Production Sungai Pakning. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Gangguan listrik dapat terjadi pada saat sistem menyalurkan energi listrik dari sumber hingga beban. Gangguan internal berasal dari peralatan listrik itu sendiri, salah satunya adalah arus starting motor. Sedangkan gangguan eksternal dapat disebabkan oleh beberapa factor, seperti gangguan hubung singkat atau beban lebih. Semua gangguan yang terjadi dapat merusak peralatan sistem tenaga listrik sehingga mengganggu pasokan listrik ke konsumen. PT Pertamina (Persero) RU II Production Sungai Pakning memiliki motor pompa P3B yang bertugas untuk memompa minyak LSWR (Low Sulphur Waxy Residue) dari tangki kilang menuju kapal tangki. Motor Induksi saat di-start akan menarik arus 6 sampai 12 kali lipat dari arus beban penuh motor. Pada tugas akhir ini akan mengatur setting relay sofstarter motor P3B agar saat kondisi start, arus starting tidak mencapai batas proteksi relay overcurrent. Jika arus starting mencapai titik tersebut maka relay overcurrent akan bekerja, walaupun seharusnya tidak boleh bekerja, karena relay overcurrent membaca sebagai gangguan dan akan membuat sistem tenaga listrik tidak bekerja secara normal karena ada pemutusan arus secara mendadak. Perusahaan ini menetapkan waktu pengecekan relay setiap 3 tahun untuk melihat kondisi setting relay dan melakukan setting ulang setiap 5 tahun sekali.
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Electrical interference can occur when the system delivers electrical energy from the source to the load. Internal interference derived from the electrical equipment itself, one of which is the current of the starting motor. While external interference can be caused by several factors, such as short circuit or overload. All inteference that occured can damage the electrical system equipment so it can disrupts the electricity supply to costumers. PT Pertamina (Persero) RU II Production Sungai Pakning has a P3B pump motor to pump LSWR (Low Sulfur Waxy Residue) oil from the refinery tank to the tanker. The induction motor when start will draw a current 6 to 12 times the full load current of the motor. In this final project, the setting of the P3B motor sofstarter relay will be set so at the start, the starting current does not reach the overcurrent relay protection limit. If the starting current reaches this point, the overcurrent relay will work, although it should not work, because the overcurrent relay reads as inteference and will make the power system does not work normally because there was a sudden termination of the current. This company sets a relay checking time every 3 years to see the condition of the relay settings and to reset them every 5 years.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSE 621.313 Abr e-1 2019 |
| Uncontrolled Keywords: | Koordinasi Proteksi, starting motor, dan softstarter |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2785 Electric motors, Induction. 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: | Abraham MTC |
| Date Deposited: | 02 Mar 2023 03:49 |
| Last Modified: | 02 Mar 2023 03:49 |
| URI: | http://repository.its.ac.id/id/eprint/63577 |
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