Results 91 to 100 of about 1,644 (207)

PAL-VMEA: A Novel Method for Enhancing Decision-Making Consistency in Maintenance Management

open access: yesApplied Sciences, 2020
Decision-making regarding maintenance planning has become increasingly critical. In view of the need for more assertive decisions, methods, and tools based on failure analysis, performance indicators, and risk analysis have obtained great visibility. One
Marjorie M. Bellinello   +5 more
doaj   +1 more source

Selected characteristics of vibration signal at a minimal energy consumption for the rock disintegration [PDF]

open access: yes, 2011
The rock disintegration process involves the action of disintegrating tool, resulting in the formation of forced mechanicaloscillations of all components, i.e. the disintegration device, tool and the rock.
Viera Miklúšová
core  

Analysis, modelling and design considerations for the excitation systems of synchronous generators [PDF]

open access: yes, 2017
The traditional generating set is usually comprised of a classical, wound-field, salient-pole or cylindrical rotor synchronous generator, excited by a separate smaller machine, via a rotating, uncontrolled diode rectifier.
Brown, Neil   +3 more
core   +3 more sources

Design and Research of Thrust Bearing for Datengxia Hydro-generator

open access: yesRenmin Zhujiang, 2022
The design of thrust bearing of Datengxia hydro generator and the improvement measures of cooling system are introduced. The design of thrust bearing of large hydro generator focuses on the support structure, parameters and cooling method.
GE Liangcheng   +4 more
doaj  

Razvoj i implementacija upravljačkih algoritama za sinkroni generator [PDF]

open access: yes, 2011
This paper proposes a DSP based simulator for development and implementation of control algorithms. The simulator is used to control a synchronous aggregate model in real time. The simulator consists of a PC (on which a synchronous generator connected to
Damir Sumina, Gorislav Erceg, Igor Erceg
core   +1 more source

Testing of aircraft hydraulic systems [PDF]

open access: yes, 2011
Závěrečná práce s názvem „Zkoušení hydraulických systémů letadel“ pojednává o problematice spojené se zkoušením jednotlivých komponent a také celých hydraulických systémů.
Suk, Filip
core  

AIR GAP CONTROL SYSTEM FOR HYDROGENERATORS

open access: yesDevices and Methods of Measurements, 2017
In this paper, we report of the solving the actual problem of control the air gap in the hydrogenerators. The aim of the study was development of a computerized information-measuring system for measuring the air gap in the hydrogenator, which used two capacitive sensors with parallel coplanar electrodes, and the method of determining the shape of the ...
I. O. Zaitsev   +2 more
openaire   +3 more sources

Electromagnetic analysis and electrical signature-based detection of rotor inter-turn faults in salient-pole synchronous machine [PDF]

open access: yes, 2018
In this paper, rotor inter-turn faults in salient-pole synchronous machines are investigated using finite-element analysis. The machine under study is a 22 MVA eight-pole hydropower generator with fractional-slot windings.
Jørstad, Kari Gjerde   +2 more
core   +1 more source

Loss Modeling of Large Hydrogenerators for Cost Estimation of Reactive Power Services

open access: gold, 2021
Yannick Cyiza Karekezi   +2 more
openalex   +1 more source

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