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Proceedings Paper

Five important power line component anomalies
Author(s): Richard G. Strmiska
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Paper Abstract

During routine infrared surveys of switchyard, substation, distribution components and underground cable installations, several important anomalies have been identified. Five are reported on in this paper: (1) Moisture intrusion into high voltage polymer insulators; (2) Improper installation of a three phase service transformer set; (3) Improper tightening of a bushing connection; (4) Current transformer polyurethane coating encasement failure; (5) Underground cable and fuse enclosure insulator failure. In the first case the extremes of Florida weather, heat, humidity and moisture, contributed to the failure. In all cases, either improved manufacturing design or installation procedures could have prevented these problems. In addition to using infrared thermography as a survey tool, it is highly recommended to be used as a design and installation, baseline-checking tool.

Paper Details

Date Published: 30 March 2000
PDF: 6 pages
Proc. SPIE 4020, Thermosense XXII, (30 March 2000); doi: 10.1117/12.381536
Show Author Affiliations
Richard G. Strmiska, Sumter Electric Cooperative, Inc. (United States)

Published in SPIE Proceedings Vol. 4020:
Thermosense XXII
Ralph B. Dinwiddie; Dennis H. LeMieux, Editor(s)

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