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Forum: Reliability & Maintainability Questions and Answers

Topic: Reliability & Maintainability Questions and Answers

Topic Posted by: Reliability & Maintainability Forum ( )
Organization: System Reliability Center
Date Posted: Mon Aug 31 12:47:36 US/Eastern 1998

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Posted by: Paul Stokes ( )
Date posted: Mon Apr 2 23:56:45 US/Eastern 2001
Subject: Capacitor Failure Modes
Hello, I was searching for information on the common failure modes of 33kV capacitor banks without much luck. Any expertise or knowledge in this field would be most helpful. Thanks, Paul Stokes


Subject: Capacitor Failure Modes
Reply Posted by: Robert Arno ( )
Organization: Reliability Analysis Center
Date Posted: Mon Jun 4 12:55:52 US/Eastern 2001
Message: Based on the information you have provided the failure mode conditions could be as a result of corrosion of the internal material independent of operation. Capacitors usually fail in a condition that will effect the quality of power, filtering capabilities, not causing a system fault. This is a guess and is based on the limited information provided. Additional information would help me provide more details, manufacture, type of capacitor bank, environmental conditions, age, etc. Posted by: Robert Arno (

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