Results 21 to 30 of about 642,509 (288)

Analisis Perawatan Berkala Trafo Distribusi 800 kVA pada Rumah Sakit X Kota Tangerang

Elektrika, 2023
In Indonesia, electricity supply for buildings or buildings with needs above 200kVA requires a distribution transformer owned by the customer, so that electrical energy transactions are carried out on the medium voltage side of 20kV.
Ridho Alpha Kusuma, Jimmy Arimas Prayogo, Choirul Mufit   +2 more
doaj   +1 more source

Canonical Correlation Between Partial Discharges and Gas Formation in Transformer Oil Paper Insulation

Energies, 2012
Dissolved gas analysis (DGA) has been widely applied to diagnose internal faults in transformer insulation systems. However, the accuracy of DGA technique is limited because of the lack of positive correlation of the fault-identifying gases with faults ...
Jian Li, Shangyi Peng, Xi Chen, Weigen Chen   +3 more
doaj   +1 more source

Dynamics of methane ebullition from a peat monolith revealed from a dynamic flux chamber system [PDF]

, 2014
Methane (CH4) ebullition in northern peatlands is poorly quantified in part due to its high spatiotemporal variability. In this study, a dynamic flux chamber (DFC) system was used to continuously measure CH4 fluxes from a monolith of near‐surface ...
Reeve, Andrew S., Schafer, Karina V. R., Slater, Lee D., Varner, Ruth K., Yu, Zhongjie   +4 more
core   +3 more sources

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

Development of nominal rules on the Fuzzy Sugeno method to determine the quality of power transformer insulation oil using Dissolved Gas Analysis data

Jurnal Ilmiah SINERGI, 2023
This paper aims to develop the nominal rules on the Fuzzy Logic Method using the Sugeno-Fuzzy Inference System (FIS) for Dissolved Gas Analysis (DGA) and determine the quality of the power Transformer 1 and Transformer 6 insulating oil at the Buduran 150
Ha'imza Ha'imza, Amirullah Amirullah, Boonyang Plangklang   +2 more
doaj   +1 more source

Hybrid Dissolved Gas-in-Oil Analysis Methods

Journal of Power and Energy Engineering, 2015
Dissolved gas analysis is the most widely used diagnostic test in power transformers. The aim of this paper is to introduce the dissolved gas analysis (DGA) methods able to diagnose the transformer conditions. The faults cause the transformer oil, pressboard, and other insulating materials to decompose and generate gases, some of which dissolve in the ...
Leonidha Londo, Rajmonda Bualoti, Marialis Çelo, Nako Hobdari   +3 more
openaire   +2 more sources

Direct Measurement of Dissolved Gas Using a Tapered Single-Mode Silica Fiber

Sensors
Dissolved gases in the aquatic environment are critical to understanding the population of aquatic organisms and the ocean. Currently, laser absorption techniques based on membrane separation technology have made great strides in dissolved gas detection.
Panpan Sun, Mengpeng Hu, Licai Zhu, Hui Zhang, Jinguang Lv, Yu Liu, Jingqiu Liang, Qiang Wang   +7 more
doaj   +1 more source

Controls on the spatial distribution of oceanic δ¹³C_DIC [PDF]

, 2013
We describe the design and evaluation of a large ensemble of coupled climate–carbon cycle simulations with the Earth system model of intermediate complexity GENIE.
Death, R. M., Edwards, N. R., Holden, P. B., Müller, S. A., Oliver, K. I. C., Ridgwell, A.   +5 more
core   +3 more sources

Prediction Model for Dissolved Gas Concentration in Transformer Oil Based on Modified Grey Wolf Optimizer and LSSVM with Grey Relational Analysis and Empirical Mode Decomposition

Energies, 2020
Oil-immersed transformer is one of the most important components in the power system. The dissolved gas concentration prediction in oil is vital for early incipient fault detection of transformer.
Bing Zeng, Jiang Guo, Fangqing Zhang, Wenqiang Zhu, Zhihuai Xiao, Sixu Huang, Peng Fan   +6 more
doaj   +1 more source

Analisis Kualitas Minyak Trafo Menggunakan Data Dissolved Gas Analysis dan Water Content

Protek: Jurnal Ilmiah Teknik Elektro, 2018
Transformer is a vital equipment in the power system. If the transformer is damage, can cause the electrical distribution to the consumer will be disrupted. Therefore, it needs special maintenance the performance of the transformer to avoid damage.
Abdul Syakur, Fanny Rizka Savitri
doaj   +1 more source