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All Journal International Journal of Electrical and Computer Engineering JTEV (Jurnal Teknik Elektro dan Vokasional TELKOMNIKA (Telecommunication Computing Electronics and Control) Journal of Engineering and Technological Sciences JURNAL NASIONAL TEKNIK ELEKTRO MODELING: Jurnal Program Studi PGMI SEIKO : Journal of Management & Business Edumaspul: Jurnal Pendidikan Jurnal E-Bis: Ekonomi Bisnis JOURNAL OF BUSINESS AND ECONOMICS RESEARCH (JBE) Bisnis Net : Jurnal Ekonomi dan Bisnis Jurnal Amplifier: Jurnal Ilmiah Bidang Teknik Elektro dan Komputer Bulletin of Economic Studies (BEST) Andalasian International Journal of Applied Science, Engineering, and Technology Andalas Journal of Electrical and Electronic Engineering Technology Jurnal Guru Pencerah Semesta (JGPS) Jurnal Pengabdian Masyarakat Bangsa Seminar Nasional Hasil Penelitian LP2M UNM Journal Economic Management and Business Abdurrauf Journal of Islamic Studies INOVASI: Jurnal Ekonomi, Keuangan, dan Manajemen Jurnal Ilmiah Bongaya (JIB)
Abdul Rajab
Department Of Electrical Engineering, Universitas Andalas
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Journal : International Journal of Electrical and Computer Engineering

 1 
Proposal of analysis method to reduce back-flashover rate taking account of tower footing resistance Yusreni Warmi; Zulkarnaini Zulkarnaini; Abdul Rajab; Chitra Yuanisa; Rizki Oktrinanda Elyas; Andi M. Nur Putra; Zuriman Anthony
International Journal of Electrical and Computer Engineering (IJECE) Vol 13, No 1: February 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v13i1.pp94-106

Abstract

The number of lightning stroke on the tower of the 150 kV Koto Panjang-Payakumbuh transmission line located the rocky area has been observed. The high value of tower footing resistance indicates the occurrence of the back-flashover in the transmission line at intensity of 74%. The back-flashover occurrence is dominantly triggered by the tower footing resistance value. Also, the rate of back-flashover has an effect on the value of the tower footing resistance by considering the number of electrode installations. A design is proposed for the grounding system of the tower footings in order to reduce the rate of back-flashover. The results presenting in numerical simulation indicates that it works properly after adding 4 electrodes. That is to say, installing 4 electrodes in each tower has successfully decreased the tower footing resistance value, back-flashovers rate 80% and 90-95% of present value respectively. The insulator voltage can be reduced to less than half of the present voltages as much as 30-50%. In more detail, in tower 77, the value of the tower footing resistance drops to 2.84 Ω, the flashover rate drops to 0.57/100 km/year and the insulator voltage drops to 0.99 MV when a disturbance occurs.
Dissolved gas analysis comparison of electrically stressed methyl ester and mineral oil Rajab, Abdul; Andre, Hanalde; Pawawoi, Andi; Baharuddin, Baharuddin; Gumilang, Harry
International Journal of Electrical and Computer Engineering (IJECE) Vol 14, No 4: August 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v14i4.pp3628-3639

Abstract

Methyl ester is considered one of the alternative substitutes to mineral oil as an insulating liquid. This study investigates the dissolved gas analysis (DGA) of the methyl ester derived from palm oil, under low energy discharge faults. The aims are to understand the gas composition and evaluate the applicability of the well-established fault interpretation methods for mineral oil to the methyl ester. Experimental procedures were conducted based on the International Electrotechnical Commission (IEC) standards. It involved simulating electrical breakdowns in laboratory conditions as per IEC-156 standard and analyzing gas samples using gas chromatography based on IEC-567. Results show that methyl ester oils produce similar types of gases as mineral oils but at higher concentrations. The interpretation of DGA results using fault identification methods such as Duval Triangle, Duval Pentagon, and IEC ratio indicates an overestimation of fault severity in methyl ester oils, and categorizing the faults as high energy discharge. However, the key gas method correctly identifies the discharge in both methyl ester and mineral oils. These findings suggest the need for adjustments in existing DGA methods to account for the higher gas concentrations in methyl ester oils, for effective condition monitoring and maintenance of transformers if it was filled with methyl ester oil.
Co-Authors . Darwison A Halim Adys, Himaya Praptani Ahmad Faqhruddin Abdur-Rabb Amalia, Sabina Raih Aminuddin S. Aminuddin S. Aminuddin Sulaeman Aminudin Sulaeman Andi Pawawoi Arfita Yuana Dewi Astuti, Diah Retno Dwi Aulia Aulia Baharuddin Baharuddin Basri Bado, Basri Basri, Muh Nur Risky Chitra Yuanisa D. Hamdani D. Hamdani Dedi Harianto DEWI RAHMAWATI Didin Mujahidin Dwi Utami Dzaki Ahmad Fertoni Eka Putra Waldi Emiliano, Emiliano Farizi, AL Fitrilina, Fitrilina Gaffar, Annisa Lukman Gumilang, Harry H, Ahmad. Hamiddin, Muhammad Irwan Hanalde Andre Hanum, Azizah Harfian, Harfian Haviz Yestian Husnul Fajri Insannul Kamil, Insannul Irwan, Muhammad Nur Irwandi Irwandi Jamil, Muh Juhamri, Juhamri Kamarol Mohd Jamil, Mohamad Kamaruddin, Citra Ayni Kurniawan, Septian Ari Kusuma, Tantri Laksono, Heru Dibyo M. Hikita M. Hikita M. Kozako M. Kozako M. Tsuchie M. Tsuchie Magfirah Malik, Muh. Marwan Mardini Hasanah Marsella, Novi Masahiro Kozako Masayuki Hikita Masbur Masbur Melda Latif Mochtar, Hasyim Motoo Tsuchie Muchlis, Nurannisa Sri Febriani Muhammad Imran Hamid Muhammad Syafri, Muhammad Mujahidin, Didin Mumuh Muharam Nabil , Muhammad Nanang Rohadi, Nanang Novizon, Novizon Panglima Ibnu Alfaradhi Purnamasari, Linurya Putra, Andi M. Nur Rabai, Rahmad Rahim, Abd Rahman, Rasyid Rahmawati Fitriyan Ramadhani, Reni Reyhan Maulvi Pradipta Riko Nofendra Riko Novendra Rizki Oktrinanda Elyas Rizky Kencana Putra S. Ohtsuka S. Ohtsuka Saifullah Idris Sari, Jumria Shadry Andriani Silalahi, Julfi Juari Sri Astuti Sri Astuty Sri Utami Subur, Hikmayani Sudaryatno Sudirham Sulaeman, Aminudin Suwarno Suwarno SYAMSU ALAM syauqi, T.M Syukri Yunus Takashi Suzuki Tanra, Mansyur Tesya Uldira Septiyeni Umar K. Umar K. Y. Abe Y. Abe Y.A. Dewa, Nurfadillah. Yusreni Warmi Zulkarnain Abdul-Malek Zulkarnaini Zulkarnaini Zuriman Anthony