Results 11 to 20 of about 7,607,101 (286)

Characterization of accumulated space charge and charge-caused AC gas discharge characteristics in enclosed air spaces with novel electrostatic induction method [PDF]

Scientific Reports
Space charges affect the discharge process in an enclosed space of an electrical device. Due to the limitations of the measurement technique, it is difficult to study charge accumulation and its effect on discharges.
Disheng Wang, Kecheng Tao, Lin Du, Tao Wang   +3 more
doaj   +2 more sources

An improved pulsed electroacoustic system for space charge measurement under AC conditions [PDF]

, 2010
In this paper, an improved space charge measurement system based on the pulsed electro acoustic technique (PEA) is presented. The new system gives an essential way to examine the role of space charge in electrical aging process under AC conditions.
Z. Xu, J. Zhao, Xu, Z, Zhao, J, Xu, Z., Chen, G., G. Chen, Zhao, J., Chen, G   +8 more
core   +2 more sources

Decay of Electric Charge on Corona Charged Polyethylene [PDF]

, 2007
In this paper, the surface potential decay of corona-charged low density polyethylene (LDPE) films has been investigated. It has been found that for the same sample thickness the faster decay occurs in the sample with a higher charging voltage.
Zhiqiang Xu, Xu, Z, Zhang, L, G Chen, XU, Zhiqiang, Chen, G, Zhang, Linwen, Linwen Zhang, Chen, George   +8 more
core   +2 more sources

Space Charge Accumulation at Material Interfaces in HVDC Cable Insulation Part I—Experimental Study and Charge Injection Hypothesis

Energies, 2020
On-site installation of accessories on extruded polymeric high voltage cables in a common practice. The procedure requires the shaping of the physical interface between the cable insulation surface and the pre-molded accessory body.
Espen Doedens, E. Markus Jarvid, Raphaël Guffond, Yuriy V. Serdyuk   +3 more
doaj   +1 more source

Fast space charge packet characteristics within low-density polyethylene affected by epitaxial crystallization

Energy Reports, 2022
The formation of space charge packet increases the maximum electric field within HVDC polymeric cable insulation. However, the influence of epitaxial crystallization on transient characteristics of space charge packet behavior in polyethylene (LDPE ...
Chenyuan Teng, Yuanxiang Zhou, Ling Zhang, Yunxiao Zhang, Xin Huang, Meng Huang   +5 more
doaj   +1 more source

Analysis of space charge and charge trap characteristics of gamma irradiated silicone rubber nanocomposites

IET Nanodielectrics, 2020
Silicone rubber is widely used for electrical insulation and may be exposed to a harsh environment. The present study envisaged to improve insulation properties of silicone rubber by adding an optimised quantity of nanofillers.
Baskar Thangabalan, Ramanujam Sarathi, Noureddine Harid, Huw Griffiths   +3 more
doaj   +1 more source

Measurement of sprinkled and encapsulated space charge in homo-multilayer dielectric samples using PEA method [PDF]

Bulletin of the Polish Academy of Sciences: Technical Sciences, 2022
High voltage DC insulation plays an important role, especially in power transmission systems (HVDC) but also increasingly on medium voltage levels (MVDC).
Marek Florkowski, Maciej Kuniewski
doaj   +1 more source

Measurement of Space Charge Distribution in Epoxy Resin

IEEJ Transactions on Fundamentals and Materials, 1998
Internal space charge behavior of insulating materials has recently attracted attention of many researchers, and a large number of experimental studies were carried out by using the materials for dc cables, such as XLPE, LDPE, and HDPE. Epoxy resins are used for insulation under strong electric fields in power apparatus and in electronic devices, and ...
Takashi Iizuka, Kazuo Yoshimoto, Hiroshi Takai, Kaori Fukunaga, Takashi Maeno   +4 more
openaire   +2 more sources

Review of the PEA Method for Space Charge Measurements on HVDC Cables and Mini-Cables

Energies, 2019
This review takes into account articles and standards published in recent years concerning the application of the Pulsed Electro Acoustic (PEA) method for space charge measurement on High Voltage Direct Current (HVDC) cables and mini-cables.
Giuseppe Rizzo, Pietro Romano, Antonino Imburgia, Guido Ala   +3 more
doaj   +1 more source

Measurable functions on charge spaces

, 2023
The concept of measurability of functions on a charge space is generalised for functions taking values in a uniform space. Several existing forms of measurability generalise naturally in this context, and new forms of measurability are proposed. Conditions under which the various forms of measurability are logically equivalent are identified.
openaire   +2 more sources