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Assessment of Expla...
Assessment of Explanatory Variables on the Failure Rate of Circuit Breakers Using the Proportional Hazard Model
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- Jürgensen, Jan Henning, 1987- (author)
- KTH,Elektroteknisk teori och konstruktion,Reliability Centred Asset Management (RCAM) Group
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- Nordström, Lars (author)
- KTH,Elkraftteknik,Power system operation and control
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- Hilber, Patrik (author)
- KTH,Elektroteknisk teori och konstruktion,Reliability Centred Asset Management (RCAM) Group
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- Brodersson, Anna Lilly (author)
- Vattenfall Eldistribution AB
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- Andreasson, Elin (author)
- Vattenfall Eldistribution AB
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(creator_code:org_t)
- Dublin, Ireland : IEEE conference proceedings, 2018
- 2018
- English.
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In: 2018 POWER SYSTEMS COMPUTATION CONFERENCE (PSCC). - Dublin, Ireland : IEEE conference proceedings. - 9781910963104
- Related links:
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http://www.pscc2018....
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http://pscc2018.epfl...
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https://kth.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.2...
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Abstract
Subject headings
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- This paper utilises the proportional hazard model to understand and quantify the impact of explanatory variables on the failure rate of circuit breakers (CB). Particularly, 4496 work orders with 2622 high voltage CBs are investigated with an occurrence of 281 major failures. Different explanatory variables such as CB type, manufacturer, preventive maintenance (PM), and others are gathered to quantify their significance and magnitude of their effect. The results present that PM has a positive impact, the number of operations within the last year a negative impact, and age has a small but negative impact on the failure rate. The CB type is not significant in all analyses which can be explained by examining the PM and age of these CB types. This paper contributes to the understanding of how explantatory variables impact the failure rate which is essential for power system asset management.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- Asset management
- circuit breaker reliability
- failure rate
- preventive maintenance
- proportional hazard model
- Electrical Engineering
- Elektro- och systemteknik
Publication and Content Type
- ref (subject category)
- kon (subject category)
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