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What are the symptoms of a bad run capacitor?

Failure mode and effects analysis

Partial discharge

Weibull distribution

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Journal Article•DOI Failure analysis of composite dielectric of power capacitors used in distribution systems A.S. Farag, C. Wang, T.C. Cheng, G. Zheng, B. Palk, M. Moon, Yaping Du, L. Hu - Show less +7 more 01 Feb 1998-Electric Power Systems Research 12 Citations	The results of the study on 2912 capacitor banks including 8736 capacitors installed at 153 distribution substations showed that the failure mode of capacitor units may be represented by Weibull distribution and each capacitor manufacturer has different failure rate.
Proceedings Article•DOI Simulation and Analysis of Performance of a Pure Electric Vehicle with a Super-capacitor Nan Jin-rui, W. Zhifu, R. Qinglian - Show less +2 more 01 Sep 2006 31 Citations	The results showed that installing a super-capacitor improves the working conditions of the battery.
Proceedings Article•DOI Classification of power system transients: synchronised switching E. Styvaktakis, Math Bollen, Irene Yu-Hua Gu - Show less +2 more 23 Jan 2000 13 Citations	The proposed method enables detection and classification of synchronised capacitor switching events.
Proceedings Article•DOI Effect of the geometry on the aging of metalized polypropylene film capacitors M.H. El-Husseini, Pascal Venet, Gérard Rojat, M. Fathallah - Show less +3 more 17 Jun 2001 22 Citations	The statistical approach showed that the failure mode may be represented by two parameter Weibull distribution and the experimental approach proved that a long capacitor deteriorates faster than a plate-shaped capacitor having the same features.
Proceedings Article•DOI Improved Performance of Induction Motor Using Magnetic Energy Recovery Switch Takanori Isobe, J.A. Wiik, F.D. Wijaya, K. Inoue, Kazuhiro Usuki, Tadayuki Kitahara, Ryuichi Shimada - Show less +6 more 02 Apr 2007 18 Citations	Series capacitor compensation may cause some unstable situation.
Open access•Journal Article•DOI Impact of surface discharge plasmas on performance of a metallized film capacitor Michael G. Kong, Y. P. Lee - Show less +1 more 27 Aug 2001-Journal of Applied Physics 13 Citations	Numerical examples of a metallized film capacitor are used to demonstrate that surface breakdown plasmas and their elongation are unlikely to affect capacitor performance in a significant fashion.
Proceedings Article•DOI Low-voltage failures in multilayer ceramic capacitors: a new accelerated stress screen R. Munikoti, P. Dhar - Show less +1 more 09 May 1988-IEEE Transactions on Components, Hybrids, and Manufacturing Technology	The method eliminates all the potential failures in capacitor lots.
Journal Article•DOI Novel Megalo-Capacitance Capacitor Based on Graphitic Carbon Cathode Masaki Yoshio, Hitoshi Nakamura, Hongyu Wang - Show less +2 more 01 Dec 2006-Electrochemical and Solid State Letters 35 Citations	The cost of electrode material for capacitor can be reduced remarkably.
Journal Article•DOI Some mechanisms of failure of capacitors with mica dielectrics A.A. New 01 Jul 1960	Some of the causes of failure would occur in other types of capacitor, perhaps to a similar extent.
Journal Article•DOI Failure analysis of composite dielectric of power capacitors used in distribution systems A.S. Farag, C. Wang, T.C. Cheng, G. Zheng, B. Palk, M. Moon, Yaping Du, L. Hu - Show less +7 more 01 Feb 1998-Electric Power Systems Research 12 Citations	Analysis showed that partial discharge properties are a critical indicator for capacitor failure mechanism.
Proceedings Article•DOI Failure analysis of composite dielectric of power capacitors used in distribution systems A.S. Farag, C. Wang, T.C. Cheng, G. Zheng, Yaping Du, L. Hu, B. Palk, M. Moon - Show less +7 more 22 Sep 1997	Analysis showed that partial discharge properties are a critical indicator for capacitor failure mechanisms.
Proceedings Article•DOI Using Distributed Circuits to Model Power Capacitor Behavior Robert W Brown 01 Nov 2005	The results predict the existence of hot spots in a capacitor degraded by partial edge disconnection.
Journal Article•DOI Nano-pit corrosion of the tabs in aluminum electrolytic capacitor: Polarization characteristics of the tabs in ethyleneglycol–borate solution with chloride ions Rong Xue, Yuan-Yuan Qian, Keke Liu, Xiao-Xing Jiang, Jun-Jie Zhu, Jian-Rong Zhang - Show less +5 more 01 Oct 2008-Corrosion Science	These findings may have implications for the failure of aluminum electrolytic capacitor.
Open access•Journal Article•DOI Reference Submodule Based Capacitor Monitoring Strategy for Modular Multilevel Converters Fujin Deng, Qingsong Wang, Dong Liu, Yanbo Wang, Ming Cheng, Zhe Chen - Show less +5 more 01 May 2019-IEEE Transactions on Power Electronics 61 Citations	The study results confirm the effectiveness of the proposed capacitor monitoring strategy.
Journal Article•DOI An Analysis of Electrochemical Capacitors David H. Fritts 01 Jun 1997-Journal of The Electrochemical Society 21 Citations	However, it was found that reported data are generally not adequate to allow full capacitor characterization.
Journal Article•DOI Steep fronted surges applied to large AC motors-effect of surge capacitor value and lead length P.G. McLaren, M.H. Abdel-Rahman - Show less +1 more 01 Jul 1988-IEEE Transactions on Power Delivery	The results show clearly that when the capacitor lead length approaches 1, even a relatively large capacitor value has little effect.
Open access•Journal Article•DOI Recent Developments in Fault Detection and Power Loss Estimation of Electrolytic Capacitors Ahmed Braham, Amine Lahyani, Pascal Venet, N. Rejeb - Show less +3 more 01 Jan 2010-IEEE Transactions on Power Electronics 64 Citations	Second, we prove that the methods already used to determine the capacitor power losses are not accurate because of the capacitor model chosen.

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