Results 261 to 270 of about 214,445 (299)
Some of the next articles are maybe not open access.
Dielectric windows for UHF partial discharge detection
IEEE Transactions on Dielectrics and Electrical Insulation, 2001Increasing the permittivity of the propagation medium inside a hollow tube lowers its cut-off frequency, allowing it to transmit a wider range of signal frequencies. This principle is applied to the design of dielectric windows that can be used to facilitate partial discharge (PD) detection at ultra high frequency (UHF) in a HV metalclad plant such as ...
Judd, M.D. +3 more
openaire +2 more sources
On-line partial discharge detection on transformers
18th International Conference and Exhibition on Electricity Distribution (CIRED 2005), 2005Different diagnostic techniques are currently available for on-line insulation condition assessment of power transformers. Amongst these techniques a relatively new technique for detecting partial discharges (PD) in the Ultra High Frequency range of the spectrum is also introduced.
P.D. Agoris +4 more
openaire +1 more source
Partial discharge development and detection in dielectric liquids
IEEE Transactions on Dielectrics and Electrical Insulation, 2009PD measurements in dielectric liquids have been normally performed in the past only using conventional narrow bandwidth detectors. The more recent use of ultra-wide bandwidth instruments has permitted to support once again the thesis that the PDs in oils are the consequence of the streamer (vapor phase) formation and its development.
openaire +2 more sources
Electromagnetic Coupling Method for Partial Discharge Detection
2006 International Conference on Power System Technology, 2006This paper examines the use of overhead power transmission lines as electromagnetic sensors for detecting partial discharge discharges caused by defective power transmission equipment based on both the experimental and simulation study. The experimental results show that a small amount of electromagnetic energy is coupled onto nearby power line ...
K. Wong, D. Spoor
openaire +1 more source
DC partial discharge detection and analysis techniques
Annual Report Conference on Electrical Insulation and Dielectric Phenomena, 2003This paper describes partial discharge (PD) detection systems being developed at Honeywell Federal Manufacturing & Technologies (FM&T) for use during in-process and final acceptance production-level DC hi-pot cable testing. The goal of this testing is to identify potential problems in cables during early stages of production as well as to assess ...
J.B. Mathes, T.J. Whelan, C.J. Uhlrich
openaire +1 more source
Preliminary partial discharge measurements with a computer aided partial discharge detection system
2009Partial discharges (PDs) can be destructive to electrical insulation as they may degrade the material in time. Consequently, studies have been made to develop efficient systems for PD measurements and monitoring. Due to the complexity of PDs as well as factors that can affect PD characteristics, the research on PD measurement is still active.
Altay, Özkan +4 more
openaire +1 more source
Partial Discharge Detection of Continuous Length Wire
Conference Record of the 2006 Twenty-Seventh International Power Modulator Symposium, 2006The ability to eliminate or minimize defects in high voltage wire can help in extending system reliability by eliminating or minimizing sources of partial discharge. Partial discharge testing of single conductor wire is traditionally performed on discrete lengths of wire or wires terminated to connectors.
openaire +1 more source
A Prototype Transformer Partial Discharge Detection System
2006Increased pressure on high voltage power distribution components has been created in recent years by a demand to lower costs and extend equipment lifetimes. This has led to a need for condition based maintenance, which requires a continuous knowledge of equipment health. Power transformers are a vital component in a power distribution network. However,
openaire +2 more sources
Partial Discharge Detection of Transformer Winding
2021 3rd International Conference on Artificial Intelligence and Advanced Manufacture, 2021openaire +1 more source