Results 251 to 260 of about 4,160 (293)

Use of a Deformation Coefficient for Transformer Winding Diagnostics

International Journal of Emerging Electric Power Systems, 2008
This paper presents a novel method for deformation diagnostics of transformer windings using terminal measurements. The shortcomings of existing practices in locating deformation and determining its extent are discussed. The logical steps involved in devising the new method are elaborated.
S V Kulkarni
exaly   +2 more sources

INVESTIGATION OF COPPER DEFORMATION OF COIL WINDINGS DURING WINDING

HUMAN. ENVIRONMENT. TECHNOLOGIES. Proceedings of the Students International Scientific and Practical Conference, 2023
Vada uztīšana uz rāmja tiek veikta ar zināmu sasprindzinājumu. Katra veida tinuma stieples optimālais spriegums ir atkarīgs no tinuma veida un maksimālā pieļaujamā sprieguma konkrētajam vadam. Pārmērīgs spriegums izraisīs stieples pagarināšanos, mainīs tā pretestību un sabojās izolāciju.
Ustinovs, Igors, Kļaviņš, Dainis
openaire   +2 more sources

Recognition technology of winding deformation based on principal components of transfer function characteristics and artificial neural network

IEEE Transactions on Dielectrics and Electrical Insulation, 2017
In this paper, an intelligent identification method for winding deformation fault is proposed. The proposed method is composed of principal components of transfer function characteristics and an artificial neural network (ANN).
George Chen, Guoli Wang
exaly   +2 more sources

Wind flow deformation inside the wind farm

Journal of Wind Engineering and Industrial Aerodynamics, 1998
Abstract The boundary-layer meso-γ-model was used for calculating of wind and turbulence characteristics inside the wind farm. The study demonstrates the ability of the model to describe wind and turbulence fields in more detail than climatological analysis only.
Lubov A Ivanova, Ekaterina D. Nadyozhina
openaire   +1 more source

Research of Optical Fiber Coil Winding Model Based on Large-deformation Theory of Elasticity and Its Application

Chinese Journal of Aeronautics, 2011
Optical fiber coil winding model is used to guide proper and high precision coil winding for fiber optic gyroscope (FOG) application. Based on the large-deformation theory of elasticity, stress analysis of optical fiber free end has been made and balance
Ming Jia, Gongliu Yang
exaly   +2 more sources

The Wind Speed Impact on Stress and Deformation of Composite Wind Turbine Blade

2022
Wind turbines are structures that transform wind energy into other types of energy. In the modern age, wind turbines are closely related to the production of electricity and are considered starters of the green industry. Designing this type of construction is a complex and demanding process.
Nikola Raičević, Danilo Petrašinović, Aleksandar Grbović, Miloš Petrašinović, Martina Balać, Mihailo Petrović   +5 more
openaire   +3 more sources

Vacancy winds in cyclic deformation

Scripta Metallurgica, 1983
Abstract From these calculations it is shown that if a deformation induced vacancy flux should occur as hypothesized, it will result in a Zn concentration differrence between the center of a dislocation cell and the dislocation cell walls of at least 10 −3 atom fraction, or possibly more in cylically deformed CuZn alloy.
R.W. Bush, D.J. Quesnel
openaire   +1 more source

The “Wind Surf” Deformity—Correcting Fixed Flexion Deformity and Hyperextension in Bilateral CAS TKA

The Journal of Knee Surgery, 2022
AbstractSevere knee arthritis can result in complex coronal and sagittal angular deformities. Windswept deformity is used to describe a varus deformity and contralateral valgus deformity. We recognized a new sagittal pattern at the time of computer-assisted surgery (CAS) in total knee arthroplasty (TKA) in which one knee has a fixed flexion deformity ...
Anoop Jhurani, Neil P. Sheth, Piyush Agarwal, Mukesh Aswal, Mudit Srivastava   +4 more
openaire   +2 more sources

Prevention of rotor-winding deformation on turbogenerators

Electrical Engineering, 1944
During recent years there have occurred several cases of failures on turbogenerators which were found to be due to a singular type of deformation of the rotor windings. It is recognized that the deformation of rotor windings is due to forces set up in the windings by the interaction of centrifugal force and temperature change.1 The purpose of this ...
openaire   +2 more sources

Wind deformation of the Subaru primary mirror

SPIE Proceedings, 2003
I will report on the deformation of the Subaru Telescope primary mirror surface due to wind pressure. The 261 actuators, controlled precisely down to 0.01 N level, together with 3 fixed points maintains the optical figure of the primary mirror. The extra-force exerted by wind pressure, however, pushes the actuator pistons to cause their displacement ...
Tomio Kanzawa, Masami Yutani, Tomio Kurakami, Fumihiro Uraguchi   +3 more
openaire   +1 more source