A method for cable failure analysis based on ageing model and with consideration of daily temperatures

Huajie Yi; Andrew Mcdiarmid; Ralph Eyre-Walker; Chengke Zhou; Ian Hancock; Dong Chen

doi:10.1109/CMD48350.2020.9287263

A method for cable failure analysis based on ageing model and with consideration of daily temperatures

Huajie Yi, Andrew Mcdiarmid, Ralph Eyre-Walker, Chengke Zhou, Ian Hancock, Dong Chen

Electrical Power Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The physics- based electro-thermal ageing model has been widely used for analysis of cable failures and for evaluation of insulation status for single cable circuits. However, previously published approaches only reflect increased failure probability on an annual basis which cannot be used to explain the phenomenon that higher number of cable failures have been observed during summer time by Scottish Power Energy Networks (SPEN). Despite the insulation degradation accumulated annually, higher daily temperature during summer seasons resulted in extra stochastic stress applied on cable insulation and led to increasing cable failure probability. During summer seasons, the majority of cable failures occurred when daily temperature was higher than 10 °C. This paper aims to improve the electro-thermal model to evaluate remnant insulation strength and failure probability with consideration of stochastic stress due to higher daily temperature. Failure occurs when the stochastic stress overwhelms the remnant insulation strength. With the improved model, failure probability can reflect higher number of failures during the summer season.

Original language	English
Title of host publication	2020 8th International Conference on Condition Monitoring and Diagnosis (CMD)
Publisher	IEEE
Pages	114-117
Number of pages	4
ISBN (Electronic)	9781728159317
ISBN (Print)	9781728159324
DOIs	https://doi.org/10.1109/CMD48350.2020.9287263
Publication status	Published - 16 Dec 2020
Event	2020 8th International Conference on Condition Monitoring and Diagnosis - Phuket, Thailand Duration: 25 Oct 2020 → 28 Oct 2020 https://ieeexplore.ieee.org/xpl/conhome/9287170/proceeding (Link to publisher's website)

Publication series

Name	Proceeding - 8th International Conference on Condition Monitoring and Diagnosis, CMD 2020
Publisher	IEEE
ISSN (Print)	2374-0167
ISSN (Electronic)	2644-271X

Conference

Conference	2020 8th International Conference on Condition Monitoring and Diagnosis
Abbreviated title	CMD 2020
Country/Territory	Thailand
City	Phuket
Period	25/10/20 → 28/10/20
Internet address	https://ieeexplore.ieee.org/xpl/conhome/9287170/proceeding (Link to publisher's website)

Keywords

ageing model
daily temperature
electro-thermal stress
remnant insulation strength
stochastic stress

ASJC Scopus subject areas

Computer Networks and Communications
Signal Processing
Energy Engineering and Power Technology
Safety, Risk, Reliability and Quality

Documents and Links

10.1109/CMD48350.2020.9287263

Cite this

Yi, H., Mcdiarmid, A., Eyre-Walker, R., Zhou, C., Hancock, I., & Chen, D. (2020). A method for cable failure analysis based on ageing model and with consideration of daily temperatures. In 2020 8th International Conference on Condition Monitoring and Diagnosis (CMD) (pp. 114-117). Article 9287263 (Proceeding - 8th International Conference on Condition Monitoring and Diagnosis, CMD 2020). IEEE. https://doi.org/10.1109/CMD48350.2020.9287263

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title = "A method for cable failure analysis based on ageing model and with consideration of daily temperatures",

abstract = "The physics- based electro-thermal ageing model has been widely used for analysis of cable failures and for evaluation of insulation status for single cable circuits. However, previously published approaches only reflect increased failure probability on an annual basis which cannot be used to explain the phenomenon that higher number of cable failures have been observed during summer time by Scottish Power Energy Networks (SPEN). Despite the insulation degradation accumulated annually, higher daily temperature during summer seasons resulted in extra stochastic stress applied on cable insulation and led to increasing cable failure probability. During summer seasons, the majority of cable failures occurred when daily temperature was higher than 10 °C. This paper aims to improve the electro-thermal model to evaluate remnant insulation strength and failure probability with consideration of stochastic stress due to higher daily temperature. Failure occurs when the stochastic stress overwhelms the remnant insulation strength. With the improved model, failure probability can reflect higher number of failures during the summer season.",

keywords = "ageing model, daily temperature, electro-thermal stress, remnant insulation strength, stochastic stress",

author = "Huajie Yi and Andrew Mcdiarmid and Ralph Eyre-Walker and Chengke Zhou and Ian Hancock and Dong Chen",

year = "2020",

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doi = "10.1109/CMD48350.2020.9287263",

language = "English",

isbn = "9781728159324",

series = "Proceeding - 8th International Conference on Condition Monitoring and Diagnosis, CMD 2020",

publisher = "IEEE",

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note = "2020 8th International Conference on Condition Monitoring and Diagnosis, CMD 2020 ; Conference date: 25-10-2020 Through 28-10-2020",

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Yi, H, Mcdiarmid, A, Eyre-Walker, R, Zhou, C, Hancock, I & Chen, D 2020, A method for cable failure analysis based on ageing model and with consideration of daily temperatures. in 2020 8th International Conference on Condition Monitoring and Diagnosis (CMD)., 9287263, Proceeding - 8th International Conference on Condition Monitoring and Diagnosis, CMD 2020, IEEE, pp. 114-117, 2020 8th International Conference on Condition Monitoring and Diagnosis, Phuket, Thailand, 25/10/20. https://doi.org/10.1109/CMD48350.2020.9287263

A method for cable failure analysis based on ageing model and with consideration of daily temperatures. / Yi, Huajie; Mcdiarmid, Andrew; Eyre-Walker, Ralph et al.
2020 8th International Conference on Condition Monitoring and Diagnosis (CMD). IEEE, 2020. p. 114-117 9287263 (Proceeding - 8th International Conference on Condition Monitoring and Diagnosis, CMD 2020).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - A method for cable failure analysis based on ageing model and with consideration of daily temperatures

AU - Yi, Huajie

AU - Mcdiarmid, Andrew

AU - Eyre-Walker, Ralph

AU - Zhou, Chengke

AU - Hancock, Ian

AU - Chen, Dong

PY - 2020/12/16

Y1 - 2020/12/16

N2 - The physics- based electro-thermal ageing model has been widely used for analysis of cable failures and for evaluation of insulation status for single cable circuits. However, previously published approaches only reflect increased failure probability on an annual basis which cannot be used to explain the phenomenon that higher number of cable failures have been observed during summer time by Scottish Power Energy Networks (SPEN). Despite the insulation degradation accumulated annually, higher daily temperature during summer seasons resulted in extra stochastic stress applied on cable insulation and led to increasing cable failure probability. During summer seasons, the majority of cable failures occurred when daily temperature was higher than 10 °C. This paper aims to improve the electro-thermal model to evaluate remnant insulation strength and failure probability with consideration of stochastic stress due to higher daily temperature. Failure occurs when the stochastic stress overwhelms the remnant insulation strength. With the improved model, failure probability can reflect higher number of failures during the summer season.

AB - The physics- based electro-thermal ageing model has been widely used for analysis of cable failures and for evaluation of insulation status for single cable circuits. However, previously published approaches only reflect increased failure probability on an annual basis which cannot be used to explain the phenomenon that higher number of cable failures have been observed during summer time by Scottish Power Energy Networks (SPEN). Despite the insulation degradation accumulated annually, higher daily temperature during summer seasons resulted in extra stochastic stress applied on cable insulation and led to increasing cable failure probability. During summer seasons, the majority of cable failures occurred when daily temperature was higher than 10 °C. This paper aims to improve the electro-thermal model to evaluate remnant insulation strength and failure probability with consideration of stochastic stress due to higher daily temperature. Failure occurs when the stochastic stress overwhelms the remnant insulation strength. With the improved model, failure probability can reflect higher number of failures during the summer season.

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KW - daily temperature

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KW - stochastic stress

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Yi H, Mcdiarmid A, Eyre-Walker R, Zhou C, Hancock I, Chen D. A method for cable failure analysis based on ageing model and with consideration of daily temperatures. In 2020 8th International Conference on Condition Monitoring and Diagnosis (CMD). IEEE. 2020. p. 114-117. 9287263. (Proceeding - 8th International Conference on Condition Monitoring and Diagnosis, CMD 2020). doi: 10.1109/CMD48350.2020.9287263

A method for cable failure analysis based on ageing model and with consideration of daily temperatures

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

Documents and Links

Fingerprint

Cite this