Investigation of subsynchronous resonance risk in the 380 kV Turkish electric network

Download
1990
Coşkun, Yiğit

Suggestions

Investigation of subsynchronous resonance risk in the 380 kv Turkish electric network
Ozay, N.; Güven, Ali Nezih (null; 1988-12-01)
Subsynchronous resonance (SSR) occurs when a resonant frequency of a series compensated transmission system interacts with a natural frequency of the turbine prime mover. This form of SSR is referred to as torsional interaction which, under certain conditions, may become self-excited and cause serious damage to electrical equipment and turbine shafts. The presence of a thermal power plant (Kangal) in the close vicinity of a group of series capacitors in Eastern Turkey necessitated a careful investigation of...
Investigation of the effect of orientation and heat treatment on the stress corrosion cracking susceptibility of 7050 aluminium alloy
Çevik, Gül; Doruk, Mustafa; Department of Metallurgical and Materials Engineering (2004)
In the present work, the effect of variation in specimen orientation and heat treatment on the Stress Corrosion Cracking (SCC) susceptibility of 7050 aluminum alloy was investigated in 3,5% NaCl solution and under freely corroding conditions. For this purpose, Constant Extension Rate Tests (CERT) was performed on precracked Compact Tension (CT) specimens and the Direct Current Potential Drop technique was applied to measure the crack lengths. In addition to crack length versus time curves, the relationship ...
Investigation of tensile plastic instability and necking for AL2024T3 aluminum and S235JR steel alloys
İli, Volkan; Darendeliler, Haluk; Department of Mechanical Engineering (2019)
Tensile plastic instability phenomenon is defined as the mode of deformation so that large amounts of deformation is localized in a certain region of a component during product life or testing procedure. Several studies have been published to assess the methods proposed to predict tensile plastic instability and necking behavior of materials. Although research has been done by using various specimens, comparative results on different specimen materials and geometries as well as different test methods have n...
INVESTIGATION OF FATIGUE CRACK BEHAVIOR ON NEAR THRESHOLD REGION OF AISI 4340 STEELS FOR DIFFERENT HEAT TREATMENT CONDITIONS
Çalışkan, Salim; Gürbüz, Rıza; Department of Metallurgical and Materials Engineering (2023-1-27)
Damage tolerant approach is an important phenomenon in engineering practice and must be evaluated at the onset of the design stage for components that are subject to cyclic loading during functioning; if not, devastating fatigue failure may occur. Inaccurate assessments in allowable fatigue data can cause substantial variation in fatigue limit evaluation for components with small crack size. Determining long crack threshold value as a design criterion is not a new research topic; even so, some anomalies ari...
Investigation of the effects of Kayabaşı series capacitors on 380 kv Turkish power system
Tümer, Serdar; Özay, Nevzat; Department of Electrical and Electronics Engineering (1987)
Citation Formats
Y. Coşkun, “Investigation of subsynchronous resonance risk in the 380 kV Turkish electric network,” Middle East Technical University, 1990.