Results 71 to 80 of about 86,487 (250)

Modeling of the Partial Discharge Process in a Liquid Dielectric: Effect of Applied Voltage, Gap Distance, and Electrode Type

, 2013
The partial discharge (PD) process in liquid dielectrics is influenced by several factors. Although the PD current contains the information representing the discharge process during the PD event, it is difficult to determine the detailed dynamics of what
Qing Yang, Tao Yuan, Yang, Q, Chilong Jiang, Sima, W, Jiang, C, Yuan, T, Lewin, P L, Paul Lewin, Wenxia Sima   +9 more
core   +1 more source

Physical Mechanisms of Partial Discharges at Nitrogen Filled Delamination in Epoxy Cast Resin Power Apparatus [PDF]

, 2013
For proper insulation design of epoxy cast resin power apparatus such as molded transformers, it is important to consider the criticality of defects that might exist into the dielectric material.
Hanai, Masahiro, Mansour, Diaa-Eldin A., Kojima, Hiroki, Okubo, Hitoshi, Hayakawa, Naoki   +4 more
core   +1 more source

Electromagnetic time reversal applied to online partial discharge location in power cables: influence of interfering reflections from the cable circuit [PDF]

, 2023
In online single-sided partial discharge (PD) location settings, PD reflection patterns are affected by all components present in the cable circuit.
Ragusa, A., Rachidi, F., Duffy, A., Wouters, P. A. A. F., Sasse, H., Rubinstein, M.   +5 more
core  

A Building Block to the Design of Partial Discharge Free HV and MV Cables: Modeling Defects and Discharge Inception Voltage

IEEE Access
It is well assessed that partial discharges, PD, are one of the major causes of MV and HV cable system breakdown, thus investigating partial discharge phenomenology and harmfulness is a key topic in relation to electric asset component reliability ...
Gian Carlo Montanari, Muhammad Shafiq, Sukesh Babu Myneni   +2 more
doaj   +1 more source

Statistical Study on Space Charge effects and Stage Characteristics of Needle-Plate Corona Discharge under DC Voltage

Energies, 2019
The air’s partial discharges (PD) under DC voltage are obviously affected by space charges. Discharge pulse parameters have statistical regularity, which can be applied to analyze the space charge effects and discharge characteristics during the ...
Disheng Wang, Lin Du, Chenguo Yao
doaj   +1 more source

A novel calibration method for PD measurement in power cables and joints using capacitive couplers

, 2004
Partial discharge (PD) measurements are universally accepted as a technique giving some indication of the state of the insulation in high voltage apparatus.
Xu, Y, Zhong, L, Chen, G
core  

Theoretical Study of SOF₂ Adsorption on Pd/Pt-Ni(111) Bimetallic Surfaces

Applied Sciences, 2019
Partial discharge has become a serious threat to the stable operation of gas-insulated switchgears. SOF2 is a characteristic decomposition component of SF6 decomposition components under partial discharge, which further deteriorate the severity of ...
Shiming Gan, Yingang Gui, Xiaoyan Bao, Dong Chen   +3 more
doaj   +1 more source

Partial Discharge Location within a Transformer Winding using Principal Component Analysis

, 2011
Partial discharge (PD) may occur in a transformer winding due to ageing processes, operational over stressing or defects introduced during manufacture. The presence of PD does not necessarily indicate imminent failure of the transformer but it will lead ...
Abd Rahman, M S, Hao, L, Lewin, P L
core  

Pola Peluahan Parsial (Partial Discharge-PD) Pada Bahan Isolasi Epoxy Resin [PDF]

, 2012
High voltage insulation failure that led to the breakdown of events is crucial reliability of a power system Most of the failure of the insulation caused by the presence of PD activity on the insulation material, especially the solid insulation which ...
Sitorus, Henry Binsar H., Sinaga, Herman H., Jaenussolihin, M.   +2 more
core   +1 more source

Partial discharges in power transformers [PDF]

E3S Web of Conferences
Tansformers are among the most responsible and expensive elements of the power system, therefore monitoring the technical condition of the transformer is an important and urgent task.
Lopatchenko Gleb, Groshev Alexander, Lukonin Alexey, Kuimov Denis, Yurov Alexander   +4 more
doaj   +1 more source