Results 91 to 100 of about 550 (166)

A new regularization method for dynamic load identification. [PDF]

Sci Prog, 2020
Wang L, Huang Y, Xie Y, Du Y.
europepmc   +1 more source

Forecast Model Update Based on a Real-Time Data Processing Lambda Architecture for Estimating Partial Discharges in Hydrogenerator. [PDF]

Sensors (Basel), 2020
Pereira FH, Bezerra FE, Oliva D, Souza GFM, Chabu IE, Santos JC, Junior SN, Nabeta SI.   +7 more
europepmc   +1 more source

Inspection and preventive maintenance optimization of electrographite brushes for a hydrogenerator unit in the Brazilian interconnected power system

Results in Engineering
The possibility of shutdown due to the wearing of carbon-brush collectors is a major concern on turbine-generators and one of the most frequent motives for preventive maintenance.
Gisele Maria de Oliveira Salles, Yago Lafourcade Baracy, Lucas Fritzen Venturini, Gabriela Rosalee Weigert-Dalagnol, Raphael Augusto de Souza Benedito, Diego Issicaba   +5 more
doaj   +1 more source

CWT-PSDT-Based Identification of Electromagnetic-Related Stator Vibration Frequency Components in a Hydro-Generator

Machines
Accurate identification of electromagnetically induced stator vibration frequency components is essential for the online condition monitoring of hydro-generators, particularly for assessing the dynamic state of the stator core under normal operating ...
Jiannan Zhao, Juan Duan, Kun Yang, Jianlan Wang, Junqing Wang, Xuan Yang, Jiacai Feng   +6 more
doaj   +1 more source

Study on Determining the Efficiency of a High-Power Hydrogenerator Using the Calorimetric Method

Energies
The global energy crisis demands efficient electricity production solutions, especially for isolated communities where hydraulic energy can be harnessed sustainably. This paper presents a case study analyzing the efficiency of a 13,330 kW hydrogenerator,
Elisabeta Spunei, Dorian Anghel, Gheorghe Liuba, Cristian Paul Chioncel, Mihaela Martin   +4 more
doaj   +1 more source

Innovative use of mine water for energy production using a hydrogenerator in Spółka Restrukturyzacji Kopalń S.A. (Mines Restructuring Company) [PDF]

W artykule przeanalizowano efektywność pozyskiwania energii elektrycznej przez hydrogenerator zastosowany w wyrobiskach górniczych pompowni wód kopalnianych.
Smoliński, Adam, Czerwiński, Stefan, Chmiela, Andrzej, Piotrowski, Janusz   +3 more
core  

Metody zabezpieczania turbin wodnych od rozbiegu [PDF]

, 2019
W artykule opisano przyczyny i skutki wystąpienia rozbiegu w turbinach wodnych. Przedstawiono metody zabezpieczenia hydrozespołu przed wystąpieniem awaryjnego wzrostu prędkości obrotowej.
Minkiewicz, Henryk, Pastwa, Dariusz
core  

A System Based on Artificial Neural Networks for Automatic Classification of Hydro-generator Stator Windings Partial Discharges

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
Partial discharge (PD) monitoring is widely used in rotating machines to evaluate the condition of stator winding insulation, but its practice on a large scale requires the development of intelligent systems that automatically process these measurement ...
Rodrigo M. S. de Oliveira, Ramon C. F. Araújo, Fabrício J. B. Barros, Adriano Paranhos Segundo, Ronaldo F. Zampolo, Wellington Fonseca, Victor Dmitriev, Fernando S. Brasil   +7 more
doaj   +1 more source

Anti-oxidant and anti-inflammatory effects of hydrogen-rich water alleviate ethanol-induced fatty liver in mice. [PDF]

World J Gastroenterol, 2017
Lin CP, Chuang WC, Lu FJ, Chen CY.
europepmc   +1 more source

Влияние тепловых и механических факторов на напряженное состояние крупных узлов гидрогенераторов-двигателей

, 2018
The work presented contains a detailed analysis of the existing ultimate power air-cooled hydrogenerator-motor design.Виконано детальний аналіз конструкції гідрогенератора-двигуна граничної потужності з повітряним охолодженням.Выполнен детальный анализ ...
Tretyak, A.V., Gakal, P.G., Shut, A.Yu.
core