Results 81 to 90 of about 25,394,445 (190)

STUDI KONDISI MINYAK TRANSFORMATOR DAYA BERDASARKAN HASIL UJI DISSOLVED GAS ANALYSIS (DGA) DENGAN METODE TOTAL DISSOLVED COMBUSTIBLE GAS (TDCG) DAN METODE KEY GAS DI PT.INDONESIA POWER PLTU PANGKALAN SUSU [PDF]

, 2023
Transformator adalah salah satu komponen  tenaga listrik yang sangat vital dalam penyaluran energi listrik, untuk itu keandalan dan pengoperasiannya harus tetap dijaga agar proses penyaluran energi listrik berjalan dengan baik.
Ezwarsyah, Ezwarsyah, Kartika, Kartika, Pardede, Rahmad Tarmizi, Asran, Asran   +3 more
core   +1 more source

A Hybrid Optimization Model for Transformer Fault Diagnosis Based on Gas Classification

Digital
Dissolved gas analysis (DGA) provides valuable information for transformer condition monitoring, yet accurate multi-class fault identification remains challenging due to overlapping gas patterns and the sensitivity of classifier hyperparameters.
Junju Lai, Dongpeng Weng, Feng Xian, Yuandong Xie, Yujie Chen, Qian Zhou, Chao Yuan   +6 more
doaj   +1 more source

Electrochemical gas sensors can supplement chromatography-based DGA [PDF]

, 2008
Shortening a time gap between oil sampling and its analysis as well as a rapid and correct interpretation of dissolved gas analysis (DGA) results are crucial for effective screening of faulty transformers in predictive-oriented equipment maintenance ...
Zylka, P
core  

Impact of Load Ramping on Power Transformer Dissolved Gas Analysis

IEEE Access, 2019
Dissolved gas in oil analysis (DGA) is one of the most reliable condition monitoring techniques, which is currently used by the industry to detect incipient faults within the power transformers.
Huize Cui, Liuqing Yang, Shengtao Li, Guanghao Qu, Hao Wang, Ahmed Abu-Siada, Syed Islam   +6 more
doaj   +1 more source

An adaptive multi-fuzzy logic model for diagnosing transformer faults using dynamic weight optimization

e-Prime: Advances in Electrical Engineering, Electronics and Energy
Dissolved gas analysis (DGA) is crucial for diagnosing early power transformer failures. Traditional DGA interpretation methods like Duval Triangle, IEC ratio, Roger ratio, Doernenburg ratio and Key Gas are inconsistent and vary in accuracy, especially ...
Kim-Anh Nguyen, Huy Hoang Le, Ba Tu Phung   +2 more
doaj   +1 more source

A Fault Diagnosis Model of Power Transformers Based on Dissolved Gas Analysis Features Selection and Improved Krill Herd Algorithm Optimized Support Vector Machine

IEEE Access, 2019
In this paper, a set of dissolved gas analysis (DGA) new feature combinations is selected as input from the mixed DGA feature quantity, and an improved krill herd (IKH) algorithm optimized support vector machine (SVM) transformer fault diagnosis model is
Yiyi Zhang, Xin Li, Hanbo Zheng, Huilu Yao, Jiefeng Liu, Chaohai Zhang, Hongbo Peng, Jian Jiao   +7 more
doaj   +1 more source

Effectiveness of the dissolved gas analysis method for electrical equipment fault investigation. [PDF]

, 2006
In the present study, dissolved gas analysis (DGA) methods used to evaluate faults in electrical equipment, and additional factors that characterize the condition of electrical equipment have been reviewed.
Linkevičiūtė, Birutė,, Navickas, Algimantas Stanislovas,   +1 more
core   +1 more source

Sistem Deteksi pada Transformator Menggunakan Dissolved Gas Analysis (DGA) Dengan Metode Logistic Regression

AITI
Penelitian ini membahas implementasi sistem deteksi kegagalan pada transformator dengan analisis gas terlarut Dissolved Gas Analysis (DGA) dengan menerapkan metode Logistic Regression. Metode Logistic Regression dipilih sebagai alat klasifikasi untuk mengidentifikasi pola gas yang dapat mengindikasikan kondisi kritis pada transformator.
Kurniawan Indra Wibowo, Hendry Hendry
openaire   +3 more sources

The Molecular Dynamics of Signature Gas Diffusions in Synthetic-Ester-Based Oil Under a Range of Thermal Conditions

Energies
Synthetic ester insulating oils are extensively utilized in power transformers due to their exceptional insulating properties, thermal stability, and environmental compatibility.
Liping Guo, Hongliang Wang, Weiwei Qi, Jun Zhang, Wu Lu   +4 more
doaj   +1 more source

Fault Diagnosis of Power Transformers With Membership Degree

IEEE Access, 2019
Power transformers are important equipment for power systems, and a dissolved gas analysis (DGA) is widely used to detect incipient faults in oil-pregnant transformers.
Enwen Li, Linong Wang, Bin Song
doaj   +1 more source