Retrofitting-new high voltage XLPE cables substituting paper-insulated power cables in steel pipes

Author

Bannach, Dirk ; Kirchner, Matthias ; Neubert, Ralf

Author_Institution

VEW ENERGIE AG, Dortmund, Germany

Volume

13

Issue

2

fYear

1998

fDate

4/1/1998 12:00:00 AM

Firstpage

287

Lastpage

291

Abstract

Many utilities still have paper-insulated pipe type cables in service. In the near future they may have to replace some of these systems due to local increases in electric power demand or aged cable insulation. In many cases the steel pipes are well protected against corrosion and thus suitable for further use. For retrofitting in such installations, XLPE-insulated cables offer several advantages. Felten & Guilleaume Energietechnik AG has developed a new three-core XLPE-insulated 64/110 kV cable with reduced insulation thickness (10 mm), that can be pulled into a pipe. In co-operation with VEW ENERGIE AG, the cable performance is being investigated in a field test, that started in October 1996. This long-term loading cycle test will last for three years. The test voltage, applied between conductor and earth, amounts to 127 kV. The temperature is measured with the help of an optical-fiber measurement system. This device is computer controlled and works as a remote monitoring system

Keywords

XLPE insulation; computerised monitoring; fibre optic sensors; maintenance engineering; power cable insulation; power cable testing; temperature measurement; 10 mm; 110 kV; 64 kV; Felten & Guilleaume Energietechnik AG; VEW ENERGIE AG; aged cable insulation; cable performance; city cable; computer controlled device; electric power demand increase; high voltage XLPE cables; long-term loading cycle test; optical-fiber measurement system; paper-insulated power cables; reduced insulation thickness; remote monitoring system; retrofitting; steel pipes; temperature measurement; test voltage; three-core XLPE-insulated cables; Aging; Cable insulation; Corrosion; Dielectrics and electrical insulation; Optical fiber cables; Power system protection; Steel; Temperature measurement; Testing; Voltage;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.660891

Filename

660891