This paper describes a methodology to detect the location of single as well as multiple partial discharge sources by sensing the optical radiation from the source. To establish the methodology, an experimental setup has been arranged in the laboratory for generation of partial discharge inside a steel tank provided with five optical sensors placed at the centre of all its five inside walls exce...

BACKGROUND This study aimed to examine the association between renal recovery status at hospital discharge after acute kidney injury (AKI) and long-term mortality following transcatheter aortic valve replacement (TAVR). METHODS We screened all adult patients who survived to hospital discharge after TAVR for aortic stenosis at a quaternary referral medical center from January 1, 2008, through ...

In order to overcome the discontinuance of the hard thresholding function and the defect of seriously slashing singularity in the soft thresholding function, improve the denoising effect and detect the transformer partial discharge signal more accurately, in this paper an improved wavelet threshold denoising method is put forward through analyzing the interference noise of transformer partial d...

Partial dischagre is the precursor of insulators breakdown. In this work the propagation of electromagnetic radiation emitted from partial discharge in high voltage insulating materials is investigated. Three common dielectric materials used in power industry: polymer, epoxy resin and ceramics are studied. The results obtained are envisaged to support the development of appropriate sensors for ...

Partial discharges are caused by various defects such as voids, shield protrusions, contaminants, advanced stages of water tree, etc and known the main cause of breakdown in insulation materials. Partial discharge (PD) location is a powerful and useful tool for the maintenance and operation of electrical power distribution cables. This paper describes the application of two digital signal-proce...