Article Per Year (5 Year)
p-Index From 2021 - 2026
5.216
P-Index
This Author published in this journals
All Journal E-Jurnal Medika Udayana TEKNIK Jurnal Sains Dasar Wacana, Jurnal Sosial dan Humaniora OPERATION EXCELLENCE: Journal of Applied Industrial Engineering Unnes Journal of Sport Sciences Jurnal REKOMEN (Riset Ekonomi Manajemen) Al-Kimia JURNAL PENDIDIKAN ROKANIA JURNAL TEKNIK INFORMATIKA DAN SISTEM INFORMASI Jurnal Otomasi Kontrol dan Instrumentasi CYCLOTRON JURNAL EDUCATION AND DEVELOPMENT Jurnal Pendidikan Surya Edukasi (JPSE) Pengarah: Jurnal Teologi Kristen JURNAL PIONIR Media Kontak Tani Ternak Tamaddun : Jurnal Pendidikan dan Pemikiran Keagamaan DEVICE Law Development Journal Jurnal Ilmiah Arsitektur Journal of Economic, Business and Engineering (JEBE) NUSANTARA: Jurnal Pengabdian Kepada Masyarakat Prosiding University Research Colloquium Jurnal Riset Rumpun Ilmu Teknik (JURRITEK) Jurnal Nusantara Berbakti MDP Student Conference Legalpreneur Journal SOROT: Jurnal Pengabdian Kepada Masyarakat Jurnal Nuansa: Publikasi Ilmu Manajemen dan Ekonomi Syariah Jurnal Budi Pekerti Agama Islam Clean Energy and Smart Technology Journal of Disability Journal of Indonesian Management
Hermawan Hermawan
Unknown Affiliation
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management 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 Mathematics Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Other

Published : 52 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 52 Documents
Search

 2   3   4   5   6 
ANALISIS GAS TERLARUT PADA MINYAK ISOLASI TRANSFORMATOR TENAGA AKIBAT PEMBEBANAN DAN PENUAAN Hermawan Hermawan; Abdul Syakur; Irwan Iryanto
TEKNIK Vol 32, No 3 (2011)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (478.567 KB) | DOI: 10.14710/teknik.v32i3.1737

Abstract

The lifetime of transformers and its equipments are highly dependent on the quality of insulation system.Insulation is one important component in a transformer because generally, insulations used liquid and solidinsulation in accordance with its function as an insulating material and cooling media. At the time there usedtransformer oil aging and damage caused by several things such as impurities, water content, dissolved gases(Dissolved Gas Analysis-DGA), acidity and heating the oil. Transformers loading will cause a decrease in thequality of the transformers insulation system that resulted in the decreasing age of insulating oil.This paper explained the influence of aging on the rate of degradation of Dissolved Gases of power transformersinsulating oil. This research was conducted using sample data loading and maintenance of transformers byobtained directly with investigations into the transformers which is operating. There are three method todetermine quality of oil transformer i.e. Total Combustible Gases (TCG), Roger Ratio, Key Gas and DuvalTriangle Methods.Based on analysis result by using samples from a variety of loading conditions of the transformers with differentlevels we can conclude the quality and worthiness of insulation oil and the estimated the effective remaining lifeof transformers insulation system.
THE ANALYSIS OF PARTIAL DISCHARGE (PD) FROM ELECTRICAL TREEING IN LINEAR LOW DENSITY POLYETHYLENE (LLDPE) AND HIGH DENSITY POLYETHYLENE (HDPE) Hermawan Hermawan; Abdul Syakur
TEKNIK Vol 29, No 3 (2008)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (360.702 KB) | DOI: 10.14710/teknik.v29i3.1965

Abstract

Recently, the transmission of electric energy has been developed by insulated cable. The suitable materialas an insulated cable is LLDPE and HDPE. In order to understand the quality of insulation system, themeasuring of PD has done. PD could begin completely insulation failure (breakdown). Therefore, it is veryimportant to understand the characteristic of PD and the enclose event on it, because PD is a main factorwhich caused insulation failure.This paper presents the result of PD measurement in the laboratory that used needle-plane electrode. Itwas supported by equipments such as osiloskop Digital GDS 2104 GW Instek, HPF, and RC detector.Polymer sample that used in this research is LLDPE (Linier Low Density Polyethylene) and HDPE with 20x 4 x 25 mm3 dimension in each. Needle was made by steel (length 50 mm and diameter 1.15 mm), it wasstick to the polymer material. The distance between needle to the plane is 5 mm. The applied voltage foreach sample was 16 kVrms, 18 kVrms, 20 kVrms and 22 kVrms. The Taking of PD data was done in thefirst minute, 10th minute, 20th and so on until 180th minute.The measurement result shows that the characteristic of PD number and maximum charge as a function oftime and as a function of applied voltage inclined increasing both on LLDPE and HDPE. But, PD intensityin HDPE is higher than LLDPE.
Co-Authors Abdul Syakur Achmad Affandi admin admin Adnen Bait Sabila Adriana Sari Aryani Agung Hadi Saputro AGUNG SETIAWAN Agustina Salama Ahmad Afandi Ahmad Faizun Alif Faozi Andy Fefta Wijaya Anita Fitriani Annisa Nabila Arrizqi Annisa Nabila Arrizqi ardani Ari Fajar Isbakhi Arie Kumala Nisa' Arif Setiawan Aryanti Amalia Azhar Irfandi bagas Bambang Setiyono Bambang Wahyudiono Dama Primanda Dewi Sri Rejeki Dicky Pratama Edi Djatmika El Syam, Robingun Suyud Emmi Rahmiwita Nst Erniyati Erniyati Ervi Cofriyanti Ery Wahidatul Khasanah Fahruddin Wakano Faidlon, Ahmad Fuji Elviani Elviani Ganjar Turesna Gunarhadi Gunarhadi Gunawan Gunawan Gunawan Gunawan Hadiyan Hadiyan Hendriani, Adinda Septi Herry Widiyastono Imam Abdul Aziz Irwan Iryanto Irwansyah Irwansyah Iwan Setiawan Joko Wibowo Joko Yuwono Karina karina Khoiril Anam Khozinatul Asror Komang Ayu Kartika Sari Kotim Subandi Kriswantoro Kriswantoro Kunto Aribowo Kurnia Ramadani Legis Tsaniyah Linda Herlina Lutfia Uli Na’mah M. Munandar Sulaeman Mahardika Supratiwi Marina Sulistyati Mihrani Mihrani Misra Nofrita Moh. Nasution Muafani Muhamad Abi Aufa Muhamad Imaduddin Muhamad Nafiul Fahmi Sihab Muhamad Yusuf Amin Nugroho Nif’an Nazudi Nuri Zakiyyah Nurma Khusna Khanifa Nurun Nisfah Okta Liansyah Peni Rinda Listyawati Puspa Citra R. Arya Rahmadiyatmaka Raka Imam Rachmawan Reni Sulastri Ricky Firmansyah Ridha Sabda Utami Rifqi Afian Naufa Aditama Rilawadi Rilawadi Rismaya Rismaya Rizky I'malia Sari Rois Aryani Rubianto Hadi Ruri Ruri Sarwono Sarwono Sawarni Hasibuan Sjamsiah, Sjamsiah Soesilo Zauhar Sunaryo Suryadi Suryadi Syariful Azmi Tohir Tohir Unang Yunasaf Usman Radiana Widayati Widayati Widia Ramadhani Wisnu Wisnu Yuli Widiyono Zaenal, Reza Muhamad Zulfahri, Zulfahri Zulkarnain Zulkarnain