Experimental investigation of E-beam effect on the electric field distribution in cross-linked polyethylene/ZnO nanocomposites for medium-voltage cables simulated by COMSOL Multiphysics

Journal of Analytical Science and Technology

M. I. Ismail¹  Amal. F. Abd El-Gawad¹  M. A. Farahat¹  Mohamed Mohamady Ghobashy²  S. A. Fayek³  A. I. Sharshir³ 

[1] Faculty of Engineering, Zagazig University;Radiation Research of Polymer chemistry department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA);Solid State and Accelerator Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA);

关键词: Cross-linked polyethylene cable;    Electron beam irradiation;    COMSOL Multiphysics;    Zinc oxide NPs;   

DOI  :  10.1186/s40543-022-00326-5

来源: DOAJ

【 摘 要 】

Abstract This study investigated the electric field distribution of underground cable insulation in cross-linked polyethylene/zinc oxide (XLPE/ ZnO) nanoparticles (NPs) for medium-voltage (MV) cables. The ZnO NPs that were obtained by three methods of preparation were classified using transmission electron microscopy (TEM). The obtained ZnO NPs were semi-spheres with sizes of 35–55 nm on TEM images. XLPE/ ZnO films with various ZnO NP weight contents (i.e., 0, 1, 3, and 5%) were exposed to varied dosages of 3-MeV electron beam (EB); 0 kGy, 15 kGy, 20 kGy, and 25 kGy. The optimum film XLPE/ 5-ZnO, which has ZnO NP content (5 wt%), irradiated at 25 kGy, according to alternating current (AC)/ DC conductivity (AC: 1 × 10−4 S/m; DC: 12.44 × 10−2 S/m) in minimum relative permittivity (2.24), was obtained. COMSOL Multiphysics was used to simulate the electric field distribution within an MV cable of 25-kGy XLPE/ 5-ZnO insulation. The maximum uniform electric field was found in the middle of the 25-kGy XLPE/5-ZnO film sample, rather than at the top or bottom, which might be attributed to the significantly low relative permittivity of the new 25-kGy XLPE/5-ZnO film cable.

【 授权许可】

Unknown