Identification of failure root causes using condition based monitoring data on a 33 kV switchgear

Bakar, Ab Halim Abu and Illias, Hazlee Azil and Othman, M.K. and Mokhlis, Hazlie (2013) Identification of failure root causes using condition based monitoring data on a 33 kV switchgear. International Journal of Electrical Power & Energy Systems, 47. pp. 305-312. ISSN 0142-0615

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Abstract

The implementation of condition based monitoring (CBM) involves variety of disciplines, such as failure analysis, on-line diagnostics, diagnostic data interpretation, management and communication, corrective actions and program maintenance. However, the most important tasks for a comprehensive CBM analysis are to identify the actual root cause that contributes to equipment failure and the selection of appropriate mitigation techniques to address the root cause of the failure. In this paper, CBM actual site data of a 33 kV switchgear from an electrical utility company in Malaysia (from 2007 to 2010) were used to develop failure root causes database. The database was used to identify the possible root cause of a failure and to propose a failure mitigation plan for any CBM activity. The CBM data were obtained using ultrasound, thermoscanning and transient earth voltage (TEV) methods at different compartments of the switchgear, which yielded specific root causes of failure. In order to verify the effectiveness of the proposed method, the method was tested using actual site data obtained in 2011. Using the proposed method, the actual root cause of a failure can be identified quickly; hence the time and cost of repairs can be reduced.

Item Type: Article
Additional Information: 090TD Times Cited:0 Cited References Count:8
Uncontrolled Keywords: Condition Based Monitoring (CBM), Medium Voltage Switchgear, Ultrasound, Thermoscanning, Transient Earth Voltage (TEV), Diagnosis.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 15 Jul 2013 00:49
Last Modified: 06 Dec 2019 08:38
URI: http://eprints.um.edu.my/id/eprint/7798

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