Effect of electro-thermally induced degradation on the capacitance of metal oxide varistors

L. Muremi; P. Bokoro

doi:10.1109/CATCON.2017.8280235

Effect of electro-thermally induced degradation on the capacitance of metal oxide varistors

L. Muremi, P. Bokoro

Electrical and Electronic Engineering Technology

University of Johannesburg

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

3 Citations (Scopus)

Abstract

In this study, changes in the capacitance of MOV-based arresters resulting from thermal stresses are analysed. Low-voltage MOV samples are artificially degraded at different thermal stresses, while the simultaneously applied ac field was kept constant. Prior to ANOVA being applied, the change in capacitance measured at room temperature, before and after degradation process, is tested for compliance with normality using Anderson-Darling test. Results show significant reduction in capacitance after electro-thermal degradation.

Original language	English
Title of host publication	2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems, CATCON 2017 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	311-314
Number of pages	4
ISBN (Electronic)	9781538631386
DOIs	https://doi.org/10.1109/CATCON.2017.8280235
Publication status	Published - 2 Jul 2017
Event	3rd International Conference on Condition Assessment Techniques in Electrical Systems, CATCON 2017 - Rupnagar, Punjab, India Duration: 16 Nov 2017 → 18 Nov 2017

Publication series

Name	2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems, CATCON 2017 - Proceedings
Volume	2018-January

Conference

Conference	3rd International Conference on Condition Assessment Techniques in Electrical Systems, CATCON 2017
Country/Territory	India
City	Rupnagar, Punjab
Period	16/11/17 → 18/11/17

Keywords

analysis of varience
capacitance
degradation
Metal Oxide varistors
thermal stresses

ASJC Scopus subject areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering
Safety, Risk, Reliability and Quality

Access to Document

10.1109/CATCON.2017.8280235

Cite this

Muremi, L., & Bokoro, P. (2017). Effect of electro-thermally induced degradation on the capacitance of metal oxide varistors. In 2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems, CATCON 2017 - Proceedings (pp. 311-314). (2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems, CATCON 2017 - Proceedings; Vol. 2018-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CATCON.2017.8280235

Muremi, L. ; Bokoro, P. / Effect of electro-thermally induced degradation on the capacitance of metal oxide varistors. 2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems, CATCON 2017 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 311-314 (2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems, CATCON 2017 - Proceedings).

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title = "Effect of electro-thermally induced degradation on the capacitance of metal oxide varistors",

abstract = "In this study, changes in the capacitance of MOV-based arresters resulting from thermal stresses are analysed. Low-voltage MOV samples are artificially degraded at different thermal stresses, while the simultaneously applied ac field was kept constant. Prior to ANOVA being applied, the change in capacitance measured at room temperature, before and after degradation process, is tested for compliance with normality using Anderson-Darling test. Results show significant reduction in capacitance after electro-thermal degradation.",

keywords = "analysis of varience, capacitance, degradation, Metal Oxide varistors, thermal stresses",

author = "L. Muremi and P. Bokoro",

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year = "2017",

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doi = "10.1109/CATCON.2017.8280235",

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series = "2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems, CATCON 2017 - Proceedings",

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Muremi, L & Bokoro, P 2017, Effect of electro-thermally induced degradation on the capacitance of metal oxide varistors. in 2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems, CATCON 2017 - Proceedings. 2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems, CATCON 2017 - Proceedings, vol. 2018-January, Institute of Electrical and Electronics Engineers Inc., pp. 311-314, 3rd International Conference on Condition Assessment Techniques in Electrical Systems, CATCON 2017, Rupnagar, Punjab, India, 16/11/17. https://doi.org/10.1109/CATCON.2017.8280235

Effect of electro-thermally induced degradation on the capacitance of metal oxide varistors. / Muremi, L.; Bokoro, P.
2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems, CATCON 2017 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2017. p. 311-314 (2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems, CATCON 2017 - Proceedings; Vol. 2018-January).

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

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N2 - In this study, changes in the capacitance of MOV-based arresters resulting from thermal stresses are analysed. Low-voltage MOV samples are artificially degraded at different thermal stresses, while the simultaneously applied ac field was kept constant. Prior to ANOVA being applied, the change in capacitance measured at room temperature, before and after degradation process, is tested for compliance with normality using Anderson-Darling test. Results show significant reduction in capacitance after electro-thermal degradation.

AB - In this study, changes in the capacitance of MOV-based arresters resulting from thermal stresses are analysed. Low-voltage MOV samples are artificially degraded at different thermal stresses, while the simultaneously applied ac field was kept constant. Prior to ANOVA being applied, the change in capacitance measured at room temperature, before and after degradation process, is tested for compliance with normality using Anderson-Darling test. Results show significant reduction in capacitance after electro-thermal degradation.

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Muremi L, Bokoro P. Effect of electro-thermally induced degradation on the capacitance of metal oxide varistors. In 2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems, CATCON 2017 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2017. p. 311-314. (2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems, CATCON 2017 - Proceedings). doi: 10.1109/CATCON.2017.8280235

Effect of electro-thermally induced degradation on the capacitance of metal oxide varistors

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Keywords

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