Failure prediction of underground distribution feeder cables

Author

Bucci, R.M. ; Rebbapragada, R.V. ; McElroy, A.J. ; Chebli, E.A. ; Driller, S.

Author_Institution

Two World Trade Center, Ebasco Services Inc., New York, NY, USA

Volume

9

Issue

4

fYear

1994

fDate

10/1/1994 12:00:00 AM

Firstpage

1943

Lastpage

1955

Abstract

This paper presents a methodology to determine an age-related reliability index that can be used to compare the relative likelihood of in-service failures among underground distribution feeders. It was developed for the Con Edison 27 kV and 13.8 kV distribution systems but is sufficiently generic to apply to any group of underground distribution feeders. Each feeder is represented by a combined reliability model of its individual components, including the following: cable sections-paper and solid dielectric insulated cables; cable joints-paper-to-paper, paper-to-solid dielectric and solid dielectric-to-solid dielectric insulated cable joints; and network transformers. The parameters of each component model are determined based upon historical failure data according to age. The confidence level associated with the prediction is also determined, and a brief description of the computer program developed and its application to Con Edison´s Yorkville 13.8 kV primary distribution network are provided

Keywords

cable jointing; failure analysis; paper; power cable insulation; power cables; power system analysis computing; power transformers; reliability; underground cables; underground distribution systems; 13.8 kV; 27 kV; Consolidated Edison Company; Yorkville 13.8 kV primary distribution network; cable sections; component model; failure prediction; in-service failures likelihood; network transformers; paper insulated cables; paper-to-paper insulated cable joints; paper-to-solid dielectric cable joints; reliability model; solid dielectric insulated cables; solid dielectric-to-solid dielectric insulated cable joints; underground distribution feeder cables; Application software; Cable insulation; Computer network reliability; Computer networks; Dielectrics and electrical insulation; Distributed computing; Power transformer insulation; Preventive maintenance; Senior members; Solid modeling;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.329501

Filename

329501