Failure prediction of underground distribution feeder cables

Journal Article · Sat Oct 01 04:00:00 EDT 1994 · IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/61.329501· OSTI ID:6868604

Bucci, R M; Rebbapragada, R V; McElroy, A J ^[1]; Chebli, E A; Driller, S ^[2]

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1. Ebasco Services Inc., New York, NY (United States)
2. Consolidated Edison Co. of New York, Inc., New York, NY (United States)

This paper presented a methodology to determine an age-related reliability index that can be used to compare the relative likelihood of in-served failures among underground distribution feeders. It was developed for the Con Edison 27 kV and 13.8 kV distributions 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: 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.

• OSTI ID: 6868604
• Journal Information: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States) Vol. 9:4; ISSN 0885-8977; ISSN ITPDE5
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240201* -- Power System Networks
Transmission & Distribution-- AC Systems-- (1990-)
CALCULATION METHODS
FAILURES
POWER DISTRIBUTION SYSTEMS
POWER TRANSMISSION
POWER TRANSMISSION LINES
RELIABILITY
UNDERGROUND POWER TRANSMISSION