Precision electric characterization of LDPE specimens made by different manufacturing processes
Paper in proceedings, 2018

This work introduces two measurement techniques for precision determination of ultra-low conductivity and accurate characterization of dielectric frequency response for the assessments of polymeric materials used in HVDC insulations. To demonstrate the proposed methods, electrical properties of four different low density polyethylene (LDPE) specimens, obtained by different manufacturing processes were characterized. Results obtained from dc conductivity measurements revealed clear separation of the conduction current levels in the studied specimens. Dielectric losses obtained from the frequency response measurements agrees well with the differences observed in the measured conductivities. This study concludes that the different manufacturing processes have a significant impact on materials electric properties and these parameters can be characterized with precision beyond the existing instruments' specification by using the proposed methods.

Author

Xiangdong Xu

Power grids and Components

Karolina Gaska

Chalmers, Industrial and Materials Science, Engineering Materials

Mattias Karlsson

Royal Institute of Technology (KTH)

Henrik Hillborg

ABB Sweden

Ulf Gedde

Royal Institute of Technology (KTH)

2018 IEEE International Conference on High Voltage Engineering and Application (ICHVE)

2381-5043 (ISSN) 2474-3852 (eISSN)

2018 IEEE International Conference on High Voltage Engineering and Application (ICHVE)
ATHENS, Greece,

Driving Forces

Sustainable development

Subject Categories

Medical Laboratory and Measurements Technologies

Textile, Rubber and Polymeric Materials

Composite Science and Engineering

Areas of Advance

Energy

Materials Science

DOI

10.1109/ICHVE.2018.8641846

ISBN

9781538650868

More information

Latest update

4/10/2019