Results 81 to 90 of about 139,328 (210)

Thermal Aging Properties of 500 kV AC and DC XLPE Cable Insulation Materials. [PDF]

Polymers (Basel), 2022
Zhang L, Wang Z, Tian J, Meng S, Zhou Y.
europepmc   +1 more source

Simultaneous space charge and conduction current measurements in solid dielectrics under high dc electric field

, 2006
The importance of space charge in solid dielectrics has been recognized for many years and various attempts have been made to map the distribution and assess its influence on the electrical performance of solid dielectrics. Significant development in non-
Lau, W S, Chen, G
core   +1 more source

Research on Arc Ignition Characteristics of Cables’ Insulation Under Different Temperatures Considering Thickness

IET Science, Measurement & Technology
Internal arc faults in cables are a significant cause of cable fires, with the cable temperature being time‐dependent due to varying loading levels.
Jingli Liu, Yuyao Zhong, Yu Shan, Qing Xie, Yan Li   +4 more
doaj   +1 more source

Ultrasonic characteristics of compound interface defects of high voltage cable accessory and its correlation with insulation properties

Polymer Testing
Insulation defects in high-voltage cable accessories easily induce partial discharge and even severe faults under sustained electrical stress, threatening cable line safe operation directly.
Yanhui Wei, Zeyu Wang, Renyou Li, Meng Wang, Defeng Zang, Guochang Li   +5 more
doaj   +1 more source

Locating Method for Electrical Tree Degradation in XLPE Cable Insulation Based on Broadband Impedance Spectrum. [PDF]

Polymers (Basel), 2022
Han T, Yao Y, Li Q, Huang Y, Zheng Z, Gao Y.   +5 more
europepmc   +1 more source

Research on Nonlinear EPDM for ±525kV HVDC Cable Accessories

MATEC Web of Conferences, 2019
High voltage direct current (HVDC) cable accessories are usually the weak link in the cable system for the electric field distribution is often extremely uneven, and it has a range of adverse effects in design and manufacture.
Li Dong, Zhu Zhien, Yang Liming, Ma Yili
doaj   +1 more source

Investigation of XLPE Cable Insulation Using Electrical, Thermal and Mechanical Properties, and Aging Level Adopting Machine Learning Techniques. [PDF]

Polymers (Basel), 2022
Selvamany P, Varadarajan GS, Chillu N, Sarathi R.   +3 more
europepmc   +1 more source

Research on the Thermal Aging Characteristics of Crosslinked Polyethylene Cables Based on Polarization and Depolarization Current Measurement

Energies
Although XLPE cables are widely used in power transmission and distribution systems, their insulating properties are susceptible to degradation due to thermal aging. In order to clarify the influence law of the thermal aging process on the structural and
Yamei Li, Zhaowei Peng, Dangguo Xu, Shiyang Huang, Yanfeng Gao, Yuan Li   +5 more
doaj   +1 more source

DC electric field distribution in planar dielectric in the presence of space charge [PDF]

, 2007
Electric field in a dielectric material under dc conditions is determined by conductivity of the material. It is well known that the dc conductivity is a function of both temperature and electric field.
Z. Xu, Choo, W., Xu, Z., Chen, G., G. Chen, W. Choo   +5 more
core   +1 more source

Continuous online monitoring of partial discharges in high voltage cables

, 2004
This paper reviews data acquisition, transmission and processing methodologies for continuous online monitoring of partial discharges in power cable systems.
Tian, Y., Sutton, S.J., Lewin, P.L., Swingler, S.G., Wilkinson, J.S.   +4 more
core   +1 more source