Results 161 to 170 of about 1,744 (183)
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Overview of hydrogenerator stator winding monitoring
IEEE International Electric Machines and Drives Conference. IEMDC'99. Proceedings (Cat. No.99EX272), 2003Stator winding failure due to insulation system deterioration is an important cause of hydrogenerator forced outages. Furthermore, if the deterioration is not found at an early stage, premature stator rewinding may be required, at a cost that far exceeds the cost of many maintenance procedures, such as rewedging and cleaning.
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Power electronic converter for small power hydrogenerators
2018 Innovative Materials and Technologies in Electrical Engineering (i-MITEL), 2018Proposed paper gives an overview of the design and performance of a power electronic converter designed to efficiently rectify the alternating voltage of the permanent magnet AC generator to direct current, that may be used to charge batteries and/or power devices from a small hydrogenerator.
Piotr Patyk +2 more
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Parameters and losses of hydrogenerator damping systems
Proceedings of the Institution of Electrical Engineers, 1978The paper shows the necessity for: more exact methods to calculate and measure the parameters and damping system losses of highly utilised hydrogenerators; a more exact method for measuring the damping rod currents, by means of Hall's generators, and for the design of a current measurer and the measuring circuit, and a new method to calculate losses in
E. Chiricozzi, R. Hagopian, A. Nazarian
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Observations from the Dissection of Several Aged Stator Coils from Different Hydrogenerators
Electrical Insulation Conference, 2019Stator coils and bars from 10 different hydrogenerators with a wide variety of ratings and operating hours were dissected to determine the degree of aging of the stator groundwall insulation.
G. Stone +3 more
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IEEE transactions on industry applications, 2018
The installation and settings of protection devices and excitation control systems require experience since a failure can cause damage to the synchronous generator and negative impact on the power grid.
Francisco Baracho +3 more
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The installation and settings of protection devices and excitation control systems require experience since a failure can cause damage to the synchronous generator and negative impact on the power grid.
Francisco Baracho +3 more
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Fire Detection in Open-Type Hydrogenerators
IEEE Transactions on Power Apparatus and Systems, 1970The tests made by the Aluminum Company of Canada Ltd. to determine the optimum automatic fire-detection system for the open ventilation-type generators at its Chute-a-Caron plant are described. Several detection systems were studied, resulting in smoke detection and fixed-temperature detection systems being tested.
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A graphical approach to hydrogenerator governor tuning
IEEE Transactions on Energy Conversion, 1990A graphical approach to hydrogenerator governor tuning is described. A graph which is developed can be used to predict optimum proportional and integral gains based on four parameters: the time constants of the water column and of the rotor inertia, and the self-regulation constants of the turbine and of the loading grid.
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The Ventilation Condition of Larger Hydrogenerators
1999Na temelju ispitivanja ventilacijsko toplinskih parametara u radu je analizirano ventilacijsko stanje većih zrakom hlađenih hidrogeneratora. Rezultati mogu poslužiti za utočnjavanje proračuna, poboljšanje konstrukcije novih generatora, a također i za optimiranje već izvedenih generatora prilikom obnove.
Kufner, Damir +2 more
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Design Optimization Scheme of Hydrogenerator
Foreign Language Science and Technology Journal Database Engineering Technology, 2021openaire +1 more source
Improving the Reliability of Hydrogenerators after an Extended Period of Operation
Power Technology and Engineering, 2021A. Rudenko +5 more
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