Referenced Items are not available for this document.
The authors discusses the effects of switching low inductive currents with 138 kV SF6 breakers in a petrochemical plant. Switching transients are believed to have contributed to the failure of a 13.8 kV PT and a 13.8 kV air magnetic circuit breaker. The high-frequency transient surge can transfer across a transformer due to transformer capacitances between the high- and low-voltage windings. The electromagnetic transient program system (ETPS) model and different case studies are discussed with the effect of different transformer winding capacitances. The interruption mechanism of low inductive currents is also described. This analysis demonstrates the need to conduct switching transient studies and the need for surge arresters on transformer secondary terminals under certain system conditions
Published in:
Industry Applications, IEEE Transactions on
(Volume:29
,
Issue:
4
)
Date of Publication: Jul/Aug 1993
- Page(s):
- 721 - 727
- ISSN :
- 0093-9994
- INSPEC Accession Number:
- 4531221
- Digital Object Identifier :
- 10.1109/28.231985
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Jul/Aug 1993
- Sponsored by :
- IEEE Industry Applications Society
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