Characteristics of Space Charge Accumulation in Polypropylene-Based Insulating Materials under DC Stress

We have been investigating the insulating property of polymeric materials, especially polyethylene (PE) based materials, for power transmission cables under extra high AC and DC stresses. In this study, using a simultaneous measuring system for space charge distribution and external circuit current,...

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Bibliographic Details
Published in2018 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) pp. 105 - 108
Main Authors Kanai, Takehiro, Miyake, Hiroaki, Tanaka, Yasuhiro
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2018
Subjects
bPP
Charge measurement
Current measurement
Electric fields
Electrodes
external circuit current
iPP
Power cables
pulsed electro-acoustic method
rPP
Space charge
space charge distribution
Temperature measurement
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Summary:We have been investigating the insulating property of polymeric materials, especially polyethylene (PE) based materials, for power transmission cables under extra high AC and DC stresses. In this study, using a simultaneous measuring system for space charge distribution and external circuit current, we attempted to evaluate the properties of polypropylene (PP) based polymers, which are expected to apply to an insulating material for dc power transmission cable. As the results, we found that large amount of space charges accumulated were observed in some of PP and PE copolymers at high temperature under high dc stresses, while any charge accumulation was not observed at room temperature under the high de stresses.
ISSN:2576-2397
DOI:10.1109/CEIDP.2018.8544847