Development of 500-kV XLPE cables and accessories for long distance underground transmission lines-Part II: jointing techniques

This paper reports on the results of a basic inquiry for the purpose of developing extrusion-molded joints (EMJ) for use with 500 kV XLPE power cable. The authors have made it clear that the factors that govern EMJ performance, like cable performance, are contaminants in the insulation and protrusio...

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Bibliographic Details
Published in:IEEE transactions on power delivery 1994-10, Vol.9 (4), p.1750-1759
Main Authors: Kubota, T., Takahashi, Y., Hasegawa, T., Noda, H., Yamaguchi, M., Tan, M.
Format: Article
Language:English
Subjects:
Automated highways
Cable insulation
Cities and towns
Electric breakdown
Power cable insulation
Power cables
Testing
Underground power cables
Urban areas
Voltage
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Summary:This paper reports on the results of a basic inquiry for the purpose of developing extrusion-molded joints (EMJ) for use with 500 kV XLPE power cable. The authors have made it clear that the factors that govern EMJ performance, like cable performance, are contaminants in the insulation and protrusions in the semiconductor layer. Through modeling experiments, the authors determine the minimum breakdown strength of EMJ and use this to determine design values for 500 kV EMJ. Finally, they carry out breakdown tests on actual equipment, resulting in the prospect of the actual realization of 500 kV EMJ.< >
ISSN:0885-8977
1937-4208
DOI:10.1109/61.329508