Results 51 to 60 of about 2,187 (197)

Failure behavior of dielectric films for peaking capacitor subjected to surface flashover under nanosecond pulses

AIP Advances, 2023
The flashover failure and damage of polypropylene (PP) and polyester (PET) films under nanosecond current pulses were experimentally investigated.
Zhiqiang Chen, Jinru Sun, Ziyi Dong, Jiaxin Ren, Wei Jia, Fan Guo, Linshen Xie, Wei Wu, Xueling Yao   +8 more
doaj   +1 more source

Electrical Treeing Characteristics in XLPE Power Cable Insulation in Frequency Range between 20 and 500 Hz

, 2009
Electrical treeing is one of the main reasons for long term degradation of polymeric materials used in high voltage ac applications. In this paper we report on an investigation of electrical tree growth characteristics in XLPE samples from a commercial ...
Tham, C H, Chen, George
core   +1 more source

Dissolved Gas Generation Characteristics of Dielectric Liquids Under Partial Discharges and Breakdown Sparks

High Voltage
With the growing interest in monitoring and diagnostic techniques for assessing transformer condition, dissolved gas analysis (DGA) stands out as a crucial diagnostic tool to detect electrical and thermal faults in liquid‐immersed transformers ...
Gechen Bian, Qiang Liu, Paul Jarman, Pascal Mavrommatis   +3 more
doaj   +1 more source

Modification of Insulating Properties of Surfaces of Dielectric High-Voltage Devices Using Plasma

Applied Sciences
Plasma discharges under atmospheric pressure are applicable for modifying the electrical properties of dielectric surfaces. The aim of the plasma discharge treatment of such surfaces is to design a procedure so that its characteristic parameters improve ...
Roman Pernica, Miloš Klíma, Pavel Londák, Pavel Fiala   +3 more
doaj   +1 more source

Accurate partial discharge localisation using a multi‐deep neural network model trained with a novel virtual measurement method

IET Science, Measurement & Technology, 2021
Time difference of arrival‐based localisation method has been extensively used by researchers for the partial discharge (PD) diagnosis despite being time‐inefficient and sensitive to time delay estimation.
Atta Ul Munim Zaki, Yue Hu, Xiuchen Jiang   +2 more
doaj   +1 more source

Influence of electron backflow on discharge asymmetry in atmospheric helium dielectric barrier discharges

AIP Advances, 2018
In this paper, the transition mechanisms between symmetric and asymmetric discharges in atmospheric helium dielectric barrier discharges (DBDs) are investigated via a one-dimensional fluid model.
Yuhui Zhang, Dong Dai, Wenjun Ning, Licheng Li   +3 more
doaj   +1 more source

Influence of Electrodes Configuration on Metallized Film Capacitor Performance Metrics [PDF]

Problems of the Regional Energetics
The aim of the study is to reveal the influence of the electrode configuration of metallized film capacitors on their characteristics and performance under conditions typical of power electron-ics. Presently used electrodes configurations are summarized,
Belko V.O., Cheng Lu, Kalmykova S.I., Pechnikov A.V., Plotnikov A.P.   +4 more
doaj   +1 more source

Effect of partial discharges on thermal breakdown of oil impregnated paper

, 2014
In this paper the effect of partial discharges on the thermal breakdown voltage of oil-impregnated paper is investigated. A disc shaped cavity in a stack of paper sheets formed a PD source. The paper sample was exposed to partial discharges for 18 hours.
Respicius Clemence Kiiza, Taylor, Nathaniel,, Tenbohlen, Stefan, Ghaffarian Niasar, Mohamad,, Kiiza, Respicius Clemence,, Wang, Xiaolei,, Nathaniel Taylor, Xiaolei Wang, Hans Edin, Stefan Tenbohlen, Mohamad Ghaffarian Niasar, Edin, Hans,   +11 more
core   +1 more source

The effect of nano size fillers on electrical performance of epoxy resin

, 2012
Epoxy resin is widely used in high voltage apparatus as insulation due to its excellent mechanical, electrical and chemical properties. Fillers are often added to epoxy resin to enhance its mechanical, thermal and chemical properties.
Wang, Q
core   +1 more source