Results 91 to 100 of about 437 (152)

The technology of restoration hydrogenerator rotor shape

open access: yesАвіаційно-космічна техніка та технологія, 2023
The object of research in this article is the change in the rotor shape during the operation of hydraulic units. The subject of study in this article is the design and geometric state of the shape of a rotor with irregular geometry of hydraulic generators-engines.
openaire   +1 more source

Дослідження моделі сенсору повітряного зазору в потужних гідрогенераторах на основі комп'ютерного моделювання [PDF]

open access: yes, 2020
В доповіді розглядається вирішення задачі створення моделі ємнісного компланарного двоелектродного сенсору повітряного зазору між ротором та статором в потужних гідрогенераторах .
Сухорукова, О. Є.   +1 more
core  

Experiencias en el diagnóstico del aislamiento de los generadores de potencia; Experiences in the diagnosis of the insulation of power generators

open access: yesRevista Científica de Ingeniería Energética, 2014
El aislamiento de los generadores eléctricos de gran potencia (Turbogeneradores e Hidrogeneradores) es el componente que más influye en su confiabilidad operacional, por lo cual es vital conocer su estado para aplicar las acciones correctivas requeridas.
Santiago Alfredo Dorrbercker Drake   +2 more
doaj  

A new admittance approach applicable to the coordination between the loss-of-excitation protection and the underexcitation limiter.

open access: yes, 2020
The performance of salient-pole synchronous generators protection is of great importance for the stability of power systems, as they are present in large hydropower plants, subject to various abnormal operating conditions such as threephase or two-phase ...
Damião, Laerty João dos Santos   +4 more
core  

On-line partial discharge monitoring of hydrogenerators using qualitrol partial discharge analyzer-IV (PDA-IV) done by Superserve Corporation, Philippines

open access: yes, 2016
The Partial Discharge Analyzer - IV (PDA-IV) is one of the devices used and distributed by SuperServe Corporation for monitoring partial discharge activities among hydrogenerators.
Matel, Prince Teomel G
core   +1 more source

A New Paradigm for Large Brushless Hydrogenerators [Elektronisk resurs] : Advantages Beyond the Static System

open access: yes, 2017
The grid code, FIKS, from the Norwegian transmission system operator (TSO), Statnett, states that synchronous generators > 25MVA, must have a static excitation system. However, an improved brushless excitation system is in operation on some commercial
Lundin, Urban,   +2 more
core  

音響・電気的測定法を用いた運転中水車発電機の長期部分放電特性

open access: yes
Recently, many equipments in power facilities, especially hydrogenerators installed at high-growth period of the economy will pass over about 40 years, and is seeing an updating term.
Andou, Mitoshi   +33 more
core  

Research on Decreasing the Cost Price for the Synchronous Hydrogenerator

open access: yes, 2013
A hydrogenerator's cost price is considerably influenced by the used and computed design values. The most important parameters in the design of micro hydro power plants synchronous generators are the power blanket, the current density in the statoric ...
Padeanu, Laurentiu   +4 more
core   +1 more source

Некоторые дефекты капсульных гидрогенераторов и их идентификация с помощью датчиков воздушного зазора

open access: yes, 2009
Предложены методики расчета параметров эксцентриситета и перекоса ротора, эллипсности расточки статора ротора в капсульных гидрогенераторах по измеренным величинам воздушного зазора между ротором и статором.Запропоновано методики розрахунку параметрів ...
Поташник, С.И.   +2 more
core  

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