Calculating the switching surge critical flashover voltage of phase-to-ground and phase-to-phase bundle conductor gaps
Journal Article
·
· IEEE Transactions on Power Delivery
- Technical Univ., St. Petersburg (Russian Federation)
The paper presents a method for calculating the 50% breakdown voltages of conductor-to-plane and conductor-to conductor air gaps for any bundle design, all the three phases of lines being taken into account. The method is developed for switching impulses with long time front ({tau}{sub f} = 1,000--4,000{mu}sec) which are the most typical for UHV lines. The results of calculations are extensively compared with previous experimental results for different bundles and over a wide range of gap spacings. The influence of bundle configuration, type of phases displacement (flat, delta or inverted delta) and voltage distribution among phases for UHV lines are analyzed.
- OSTI ID:
- 40007
- Report Number(s):
- CONF-940110--
- Journal Information:
- IEEE Transactions on Power Delivery, Journal Name: IEEE Transactions on Power Delivery Journal Issue: 1 Vol. 10; ISSN ITPDE5; ISSN 0885-8977
- Country of Publication:
- United States
- Language:
- English
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