Results 31 to 40 of about 108,399 (163)

Synergistic improved electrical resistivity-temperature characteristics and DC breakdown strength in insulating XLPE composites by incorporating positive temperature coefficient particles

Polymer Testing, 2023
Weakening the electrical resistivity-temperature dependence of cross-linked polyethene (XLPE) is an effective way to enhance the electric field uniformity of high-voltage direct current (HVDC) cables.
Guimin Jiang, Yuanxiang Zhou, Chenyuan Teng, Yunxiao Zhang, Xin Huang, Luming Zhou, Da Yang   +6 more
doaj   +1 more source

Effect of Thickness on the Space Charge Behavior and DC Breakdown Strength of Cross-Linked Polyethylene Insulation

IEEE Access, 2020
In high voltage direct current (HVDC) cable systems, study of electric field distortion created by space charge accumulation is very important for examining insulation performance.
Zhipeng Ma, Lijun Yang, Muhammad Shoaib Bhutta, Haoran Bian, Muhammad Zeeshan Khan   +4 more
doaj   +1 more source

A Comparison of Electrical Breakdown Models for Polyethylene Nanocomposites

Applied Sciences, 2022
The development of direct current high-voltage power cables requires insulating materials having excellent electrically insulation properties.
Zhaoliang Xing, Chong Zhang, Mengyao Han, Ziwei Gao, Qingzhou Wu, Daomin Min   +5 more
doaj   +1 more source

High temperature vulcanized ethylene propylene diene rubber nanocomposites as high voltage insulators: Dielectric breakdown measurements and evaluation

Polymers and Polymer Composites, 2022
The use of porcelain and thermoplastic based materials as High voltage insulators has always been dominant in the industry. Several elastomers were also investigated, mainly Ethylene Propylene Rubber and Silicone rubbers were used as replacement of the ...
Ahmed I Abou-Kandil, Loai Nasrat, Eman L. Fareed   +2 more
doaj   +1 more source

The mechanisms of enhanced thickness‐dependent DC breakdown strength of EP/MWCNTs nanocomposites

High Voltage
Owing to advanced power electronic and electrical applications developing towards miniaturisation and integration, the thickness‐dependent DC breakdown mechanism of epoxy/multiwall‐carbon‐nanotube nanocomposites is under investigation.
Zhen Li, He Gao, Longfei Zhang, Shouming Wang, Ji Liu, Shengtao Li   +5 more
doaj   +1 more source

Effects of Temperature and Mechanical Stresses on the Dielectric Breakdown Strength of GF /EP Composites

Journal of Harbin University of Science and Technology, 2018
To research the effects of temperature and mechanical stresses on the dielectric breakdown strength ( DBS) of Glass Fiber /Epoxy ( GF /EP) composites，the AC breakdown test has been carried out on the GF /EP composites under different temperatures ...
LIU Shu-mei, AO Ming, LI Zhong-hua
doaj   +1 more source

Space Charge and Breakdown Properties of PP‐Based Insulation Interface in Extrusion Molded Joint for HVDC Submarine Cables

High Voltage
This paper focuses on the space charge and breakdown characteristics of polypropylene (PP)‐based insulation interface in extrusion moulded joint (EMJ) for high‐voltage direct current (HVDC) submarine cables.
Zhonglei Li, Zhong Zheng, Zhaorui Luo, Kai Gao, Xiongjun Liu, Boxue Du   +5 more
doaj   +1 more source

Development of epoxy resin with superior breakdown strength: A Review

iEnergy
Epoxy resin (EP) has been widely utilized in electrical equipment and electronic devices due to its fascinating electric, thermal, and mechanical properties.
Li Shengtao, Li Mingru
doaj   +1 more source

Breakdown strength of glycerin in helical transmission line under hundred-nanosecond pulse

AIP Advances, 2022
In this paper, a transmission line with five spiral-wires in parallel was designed. The transit time and the characteristic impedance of the transmission line are 200 ns and 14 Ω, respectively. Its slow wave coefficient is close to 13.
Chaoran Chen, Jianhua Yang, Xinbing Cheng, Rong Chen, Jiuyuan Geng, Yunrui Yue   +5 more
doaj   +1 more source

Some Factors Effecting on the Dielectric Strength for (PVC- Kaolin) Composites [PDF]

Engineering and Technology Journal, 2011
This research includes the effect of kaolin additions to the polymer matrix (PVC) and study some factors affecting to dielectric strength. The kaolin powder was added as percentage by weight (1,2,3 and 4%) to PVC, and the specimens formed by hot pressing
doaj   +1 more source