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Case Study of the Failure of two 13.8kV Control & Metering Transformers that caused significant Equipment Damage
The degradation and failure of cast-coil epoxy windings within 13.8kV control power transformers and metering potential transformers has been shown to be dangerous to both equipment and personnel, even though best industrial design practices were followed. Accident scenes will be examined for two events at a U.S. Department of Energy laboratory. Failure modes will be explained and current design practices discussed with changes suggested to prevent a recurrence and to minimize future risk. New maintenance philosophies utilizing partial discharge testing of the transformers as a prediction of end-of-life will be examined.
Date:
August 25, 2011
Creator:
Dreifuerst, G R; Chew, D B; Mangonon, H L & Swyers, P W
System:
The UNT Digital Library
Measurements of Form Factors with the BaBar Experiment
Selected recent results on measurements of form factors by the BaBar Collaboration are reviewed, including e{sup +}e{sup -} {yields} {eta}{prime}{gamma}, leptonic and semileptonic charm decays from data collected at or near the {Upsilon}(4S) resonance.
Date:
August 25, 2011
Creator:
Li, Selina Z.
System:
The UNT Digital Library
Overview of the LIFE Fuel Cycle
None
Date:
August 25, 2011
Creator:
Reyes, S.; Babineau, D.; Davis, R.; Taylor, C.; Anklam, T.; Dunne, M. et al.
System:
The UNT Digital Library