Results 21 to 30 of about 646,559 (302)

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

Quantifying precision and accuracy of measurements of dissolved inorganic carbon stable isotopic composition using continuous-flow isotope-ratio mass spectrometry [PDF]

, 2014
RATIONALE: We describe an analytical procedure that allows sample collection and measurement of carbon isotopic composition (δ13CV-PDB value) and dissolved inorganic carbon concentration, [DIC], in aqueous samples without further manipulation post field
Altman, AMCTB, Analytical Methods Committee, AMCTB, Analytical Methods Committee, Assayag, Atekwana, Barth, Bass, Bass, Bouillon, Brandes, Capasso, Cole, Finlay, Finlay, Geldern, Jones, Klein Gebbinck, Maberly, McCrea, Neter, Polsenaere, Salata, Soulsby, Spötl, St-Jean, Taipale, Torn, Torres, Waldron, Yang   +29 more
core   +1 more source

Transformer Health Monitoring Using Dissolved Gas Analysis

International Journal of Prognostics and Health Management, 2022
As integral components of any power plant, transformers sup-ply the generated electricity to the grid. However, the trans-former’s cellulose-based paper insulation and the mineral oilin which it is immersed break down over time under stan-dard operating conditions—or more rapidly due to potentialfaults within the system. This technical brief exhibits a
Cody Walker, Ahmad Al Rashdan, Vivek Agarwal   +2 more
openaire   +2 more sources

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

Online Dissolved Gas Analysis (DGA) Monitoring System

CoRR, 2019
Transformers are critical assets in power systems and transformer failures can cause asset damage, customer outages, and safety concerns. Dominion Energy has a sophisticated monitoring process for the transformers. One of the most cost-efficient, convenient and practical transformer monitoring methods in industry is Dissolved Gas Analysis(DGA ...
Xianda Deng, Kyle Thomas, Huiying Huang, Scott P. Adams, Hesen Liu   +4 more
openaire   +2 more sources

Net community production in the North Atlantic Ocean derived from Volunteer Observing Ship data [PDF]

, 2014
The magnitude of marine plankton net community production (NCP) is indicative of both the biologically driven exchange of carbon dioxide between the atmosphere and the surface ocean and the export of organic carbon from the surface ocean to the ocean ...
Bates, Behrenfeld, Benson, Boyer, Carol Robinson, Cianca, Clare Ostle, Cooper, Dickson, Ducklow, Ducklow, Emerson, Emerson, Emerson, Emerson, Emerson, Emerson, Falkowski, Garcia, Garcia, García, Giorgio, Glover, Grasshoff, Gruber, Gruber, Hooker, Johnson, Johnson, Keeling, Key, Körtzinger, Körtzinger, Landschützer, Laws, Lee, Lefèvre, Lefèvre, Liang, Longhurst, Luz, Martin Johnson, Mathis, McKinley, Najjar, Najjar, Neuer, Peter Landschützer, Quay, Quay, Redfield, Robinson, Sarmiento, Schuster, Schuster, Serret, Serret, Sharqawy, Sokal, Spitzer, Stanley, Susan Hartman, Sverdrup, Takahashi, Takahashi, Tom Hull, Uppala, Ute Schuster, Wanninkhof, Watson, Williams, Williams, Williams, Winkler, Woolf, Zhang   +75 more
core   +1 more source

A simplified implementation of the stationary liquid mass balance method for on-line OUR monitoring in animal cell cultures [PDF]

, 2018
This is the peer reviewed version of the following article: [Fontova, A. , Lecina, M. , López‐Repullo, J. , Martínez‐Monge, I. , Comas, P. , Bragós, R. and Cairó, J. J.
Bragós Bardia, Ramon, Cairó, Jordi Joan, Comas Sánchez, Pere, Fontova i Sosa, Andreu Francesc, Lecina, Martí, López Repullo, Jonatan, Martínez Monge, Iván   +6 more
core   +3 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

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