Results 1 to 10 of about 1,625 (193)
Analysis of Contact Characteristics of Carbon Brush/Slip Ring under Eccentric Oscillation of Hydrogenerator Rotor [PDF]
Shock and Vibration, 2021 In this paper, the contact characteristics of the carbon brush/slip ring of the hydrogenerator under the eccentric vibration of the rotor are studied.
Xinze Zhao +4 more
doaj +2 more sources
Axial Vibration Analysis of Thrust Support of Vertical Hydrogenerator Unit [PDF]
E3S Web of Conferences, 2021 Axial vibration is the main accident that affects the normal function of the vertical hydro-generator unit and endangers the use of the unit. There are many reasons for the axial vibration of the unit.
Long Yuanlin, Ye Yuping
doaj +2 more sources
Estimation of hydrogenerator rotor dynamic thermal margine [PDF]
Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2022 Field winding temperature of the synchronous generator is one of limiting factors shaping generator PQ capability curve. Therefore of great operational importance is to have information about this temperature estimated with the utmost accuracy. It can be
Klasnić Ilija +4 more
doaj +2 more sources
IEEE Access, 2021 Thermal management is often considered a bottleneck in the pursuit of the next generation hydrogenerator in the electric power system. Overheating of the complex rotor parts has become one of the main problems affecting safe and stable hydrogenerator ...
Jichao Han, Liu Yufei, Dong Jiechen
exaly +3 more sources
IEEE Access, 2022 Ventilation cooling design is one of the key technologies during the design of large hydrogenerator. With the increase of hydrogenerator capacity, the overheating problem of rotor region become more and more serious.
Jichao Han, Yutian Sun, Zheng Ping
exaly +3 more sources
Structural component fatigue analysis of a hydrogenerator rotor
Dyna, 2020 This paper presents a fatigue life calculation for the pole, the rotor rim, and the rotor spoke of a 100 MW hydro-generator. Mechanical and electrical parameters during unit start, with the hydro-generator working at several power levels, and during a ...
Gonzalo Fernando Casanova Garcia +2 more
doaj +3 more sources
Stress-Strained State of the Thrust Bearing Disc of Hydrogenerator-Motor
Computation, 2023 In this article, the main causes of vibration in the thrust bearing of hydrogenerator motors rated 320 MW are considered. The main types of internal and surface defects that appear on the working surface of the thrust bearing disc during long-term ...
Oleksii Tretiak +2 more
exaly +3 more sources
Practical Modal Analysis of a Prototyped Hydrogenerator [PDF]
Vibration, 2021 The vibration on the stator core of hydrogenerators caused by electromagnetic forces is an important factor affecting the reliability and long-lasting operation of a machine.
Allan de Barros +3 more
doaj +2 more sources
Detection of shorted turns on rotor poles in hydrogenerators using artificial neural networks [PDF]
Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2014 Early diagnosis of faults that might occur in industrial processes makes it possible to perform important preventative actions and therefore avoid the heavy economic losses involved in production stoppages and the replacement of elements and parts.
Babić Blagoje +4 more
doaj +3 more sources
Energies, 2023 In this paper, a three-dimensional turbulent fluid dynamics numerical model of a 311 MVA full hydroelectric power plant unit is made, using the finite element method, to study and understand the ozone transport mechanisms inside the enclosured electric ...
Rodrigo M S de Oliveira +2 more
exaly +3 more sources