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Journal : International Journal of Applied Power Engineering (IJAPE)

Battery charger regulator with fully controlled return 15 V/5 A in uninterruptible power supply Hasibuan, Arnawan; Daud, Muhammad; Hutagalung, Rizki Shobirin; Kartika, Kartika; Nrartha, I Made Ari; Almunadiansyah, Rizky
International Journal of Applied Power Engineering (IJAPE) Vol 13, No 1: March 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijape.v13.i1.pp45-51

Abstract

Fully controlled rectifier and BCR. The battery charge regulator (BCR) is the most important unit of an uninterruptible power supply (UPS) device. The BCR uses a 15 V/5 A transformer to lower the voltage so as not to overload the BCR components. Full control using four thyristors serves to supply voltage to the BCR, while the BCR serves to regulate battery charging. Forcing the battery to be charged at a constant voltage with the same current results in shorter battery life. Battery charging through the BCR is set to match the battery voltage, then allowing the BCR to control it by adjusting the phase voltage to 13.5 V for high voltage discharge (HVD) and 10.5 V for low voltage discharge (LVD). By using an IC Regulator combined with a relay as a voltage breaker for a fully charged battery, it will automatically disconnect to avoid overcharging the battery. Based on the performance test results of a fully controlled rectifier system using thyristors and BCR on a 12V/5Ah battery, the output voltage is as a fully controlled 12 V rectifier, the BCR switch can charge the internal battery in minutes with a current that varies between 2.1 A to 0.1 A.
Assessing transformer health through analysis of dissolved gases in cooling oil Nisworo, Sapto; Hasibuan, Arnawan; Isa, Muzamir; Nrartha, I Made Ari; Jannah, Misbahul; Muhammad, Muhammad
International Journal of Applied Power Engineering (IJAPE) Vol 13, No 4: December 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijape.v13.i4.pp1014-1020

Abstract

Gases can form within the insulation system for various reasons while a transformer is in operation. If these gases are not promptly and properly managed, they can negatively impact the transformer's performance. Using the dissolved gas analysis (DGA) method to identify and assess the type and quantity of dissolved gases in transformer oil can uncover potential issues within the transformer. This information is crucial for guiding preventive maintenance and necessary repairs. Dissolved gas analysis testing was conducted by extracting transformer oil samples to identify signs of disturbances in the transformer based on the dissolved gas content. This research was conducted at the Paiton plant operations and maintenance services division. The condition of transformers was assessed by analyzing dissolved gases using the Rogers ratio method. Results indicate that the transformer at Paiton 9 is in good condition but overheating has occurred and requires treatment. Conversely, the transformers at Paiton 1 and 2 are in poor condition, showing signs of electrical faults and excessive heat. Despite several attempts to add inhibitors and conduct frequent testing, the transformers remained in poor condition, necessitating their replacement or repair.
Co-Authors A B Muljono A. Dharma Abdulah Zainuddin Abta, Armen Agung Budi Muljono Agung Budi Muljono Agung Budi Mulyono Agung Budi Mulyono Akbar, Farhan Al-Ani, Waleed Khalid Ahmed Alaydia, Baiq Vivi Alfandi, Ahmad Nova Alfian, Muhammad Rolan ANA ROHANA Ananda Ghufran Andi Akbar Hidayat Apriani, Yuliani Astuti Ari Afrizal Arnawan Hasibuan Asran Asran Astianto, Muhammad Helmi Bulkis Kanata Deniarahman, Asrul Desi Widianty Desky, Muhammad Aulia Dupli, Dupli Elya, Duwiyandi Putri Fajar Syahbakti Lukman Fajar Syahbakti Lukman Faris, M Salman Firwan Dani Ginarsa Ginarsa Hadi A, Muh. Saihul Hadinata, Angga Pratama Hamzah, Ari Hamzan, Muhammad Abdulloh Hardinata, Dhika Aufa Harfani Puidi Harjian, Muhammad Rivaldi Herman Fithra Hutagalung, Rizki Shobirin I Ketut Wiryajati I M. Ginarsa I Made Budi Sukmadana I Made Budi Suksmadana I Made Budi Suksmadana I Made Dwipayana I Made Gina I Made Ginarsa I Made Ginarsa I.M. Ginarsa I.M.B Suksmadana Ida Ayu Mas C. Dewi Ida Ayu Sri Adnyani Ida Bagus Fery Citarsa Ida Bagus Fery Citarsa Ida Rofaida Indra Sasmita Isa, Muzamir Julia Kamilatin Kartika Kartika Karyawan, I Dewa Made Alit Ketut Perdana Putra, I Lalu Arya Sopansyah M Sayuti M.Kuraish Shihab Made Sutha Yadnya Maharani, Citra Putri Mahendra, Aldi Aryanugraha Manafe, Deary Pretty Genovani Misbahuddin, Misbahuddin Misbahul Jannah Muhammad Daud Muhammad Ulul Azmi Muhammad, Muhammad Mulijono, Agung Budi Muljono Muljono Muljono, A.B Muljono, A.B Muljono, Agung B Nababan, Sabar Nastika, Nastika Natsir, Abdul Navissa, Bella Nugroho, Septian Ilham Nurdin Nurdin Osea Zebua Osea Zebua Putra, I Ketut Perdana Rahman Hidayat Rahmat Andria Raihan Putri Ramadan, Sulfi Wahyudi Riswandi, Muhamad Nudisantana Rizki Ardiansyah Rizky Almunadiansyah Robi Kurniawan Roid, Fahrian Rosdiana Rosdiana S. M. Al Sasongko Safitra, Ade Sapto Nisworo Sapto Nisworo Saputra, Ahmad Sandi Yayan Sasmita, Hendra Sasongko, Sudi M. Al. Sasongko, Sudi Mariyato Al Sasongko, Sudi Maryanto Al Sayuti, M Selamat Meliala Seniari, Ni Made Siregar, Widyana Verawaty Soedjatmiko - Sopian, Muhamad Sardi Sudi Mariyanto Al Sasongko Suharto, Logika Suksmadana, I Made Budi sultan Sultan ' Sultan . Sultan . Sultan Sultan Sultan Sultan Sultan Sultan Sultan Sultan Sultan Sultan Sultan Sultan Sulthon Zamroni Supriono Supriono Supriyatna . Supriyatna Supriyatna Taneza, Erlan Taufik Taufik Teti Zubaidah Tohri, M. Wadhiesta, I Komang Krisna Dwipayana Wardi, Lutfi Warindi D Widianty , Desi Wikapti, Ida Ayu Nyoman Iswari Wildan Faisal Harharah Wirindi - Yuristia, Rana Zahiri, Muhtadi Zainuddin, Abdullah Zulfikarullah Zulfikarullah