Polyurethane foam application for high voltage insulation

George G. Karady, M. Argin, F. Rahmatian, A. H. Rose

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

In recent years, the improvement in optical technology has increased the use of Optical Instrument Transformers (OIT). The active parts of many OITs are placed in SF 6 or N 2 filled insulating structures. The challenge with using these insulating gases initiated the replacement of them with polyurethane foam, which is frequently used in low-voltage switchgears. The insulation of an OIT was modeled by foam filled tubes: 61.0 cm (24″) long, 20.3 cm (8″) diameter and electrode gap 15.2 cm (6″), and electrode radius 1.27 cm (0.5″). The AC and lightning impulse breakdown voltages of these samples were determined by a large number of tests. The repeated lightning impulse test was conducted by using 600 impulses with a peak voltage of 120 kV. The partial discharge measurements were also investigated.

Original languageEnglish (US)
Title of host publicationAnnual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
Pages526-529
Number of pages4
StatePublished - 2004
Event2004 Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP - Boulder, CO, United States
Duration: Oct 17 2004Oct 20 2004

Other

Other2004 Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
CountryUnited States
CityBoulder, CO
Period10/17/0410/20/04

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Karady, G. G., Argin, M., Rahmatian, F., & Rose, A. H. (2004). Polyurethane foam application for high voltage insulation. In Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP (pp. 526-529)