Pengurangan Arus Inrush pada Capacitor Bank Menggunakan Metode Soft Switching

Putra, Yudhatama Dwi (2018) Pengurangan Arus Inrush pada Capacitor Bank Menggunakan Metode Soft Switching. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Dalam sistem kelistrikan industri sering dijumpai berbagai masalah kelistrikan. Salah satunya adalah faktor daya yang rendah (di bawah 0,85). Faktor daya yang rendah diakibatkan karena beban induktif seperti beban motor tiga fasa. Untuk mengatasi masalah ini, pada umumnya industri memasang capacitor bank untuk menaikkan faktor daya agar sesuai standard PLN yaitu di atas 0,85. Namun dalam memasang capacitor bank, sering menimbulkan masalah yaitu timbulnya arus inrush. Umumnya pada peralatan yang sudah ada digunakan reaktor untuk mengurangi arus inrush. Namun pemasangan reaktor ini sering dihindari karena dapat mengakibatkan terjadinya resonansi. Oleh karena itu, dibutuhkan sebuah metode untuk menghubungkan capacitor bank ke sistem yang dapat mengurangi timbulnya arus inrush. Metode soft switching adalah metode yang tepat untuk mengatasi masalah ini. Capacitor bank terpasang paralel dengan beban induktif. Sebagai saklar penyalaan digunakan TRIAC agar dapat dikontrol waktu penyalaannya. Dengan metode soft switching, waktu penyalaan capacitor bank diatur agar tepat saat tegangan capacitor bank sama dengan tegangan sistem. Metode ini yang membuat arus inrush berkurang saat capacitor bank akan dihubungkan ke sistem kelistrikan industri. Arus inrush yang dapat dikurangi dapat mendekati 100% dari arus inrush yang terjadi. Sehingga metode ini sangat tepat untuk diaplikasikan dan dikembangkan untuk mendukung sistem kelistrikan industri.============== In industrial electric system, there are some problems about electricity. One of them is about low power factor (under 0,85). Low power factor is caused inductive load as three phase motor load. To resolve this problem, generally industrial are using capacitor bank to raise up power factor as PLN standard, it is up to 0,85. But if we want to use capacitor bank, there are some problems, one of them is inrush current. Generally in industry that using now, it use reactor to reduce the inrush current. But this method often avoided because it can cause resonance. So we need a method for connecting capacitor bank to system that can reduce inrush current. Soft Switching method is appropriate method to resolve this problem. Capacitor bank are connected parallel with inductive load. As turn on switching, we use TRIAC because we can control time of switching. With soft switching method, time switching of capacitor bank are controlled when capacitor voltage value same as with voltage system.This method can make inrush current reduce when capacitor bank are connected to industrial electric system. Inrush current that can be reduced until 100% from inrush current that happen. So this method can be aplicated and developed to support industrial electric system.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Arus Inrush, Capacitor Bank, Soft Switching, TRIAC, Inrush Current, industrial electric system, time switching, voltage system
Subjects: T Technology > T Technology (General) > T55 Industrial Safety
T Technology > TG Bridge engineering
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1001 Production of electric energy or power
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1010 Electric power system stability. Electric filters, Passive.
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK3226 Transients (Electricity). Electric power systems. Harmonics (Electric waves).
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5102.9 Signal processing.
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7871.674 Detectors. Sensors
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7872 Electric current converters, Electric inverters.
Divisions: Faculty of Electrical Technology > Electrical Engineering > (S1) Undergraduate Theses
Depositing User: Yudhatama Dwi Putra
Date Deposited: 12 Sep 2018 02:14
Last Modified: 12 Sep 2018 02:14
URI: http://repository.its.ac.id/id/eprint/52556

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