Results 131 to 140 of about 550 (166)
Some of the next articles are maybe not open access.
Damping of System Oscillations with a Hydrogenerating Unit
IEEE Transactions on Power Apparatus and Systems, 1967Stabilization of the initial interconnection across Utah and Arizona between the Northwest and Southwest power systems has been aided by damping torques generated through special control of a unit in Grand Coulee powerplant in Washington. The special control is derived from local frequency, using the phase advance of the first derivative to offset the ...
F. Schleif, G. Martin, R. Angell
openaire +1 more source
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.
openaire +1 more source
Optimal PID Gain Schedule for Hydrogenerators-Design and Application
IEEE Power Engineering Review, 1989The development and testing of a digital gain switching governor for hydrogenerators are described. Optimal gains are found at different load points by minimizing a quadratic performance criterion prior to controller operation. During operation, the gain sets are switched in depending on gate position and speed error magnitude.
G. Orelind +3 more
openaire +1 more source
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.
openaire +1 more source
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
openaire
Design Optimization Scheme of Hydrogenerator
Foreign Language Science and Technology Journal Database Engineering Technology, 2021openaire +1 more source
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.
openaire +1 more source
Project of a Pico Hydrogenerator for Rural Use
2020Geraldo L. Tiago F. +3 more
openaire +1 more source
Vibrodiagnostic of aircraft hydraulic emergency hydrogenerator NP 27T
Engineering Failure Analysis, 2022Peter Korba +2 more
exaly
Vibrations measurement during hydrogenerator testing
2003This paper presents the results of vibration measurement during several specific tests of 35 MVA hydro-generator. The extended testing of hydro-generator (rated 35 MVA) was made because the generators working age expired and was going to be replaced with new one. This was the perfect opportunity to do some specific and not usual testing. The results of
Vražić, Mario +2 more
openaire +1 more source