Laboratory tests to evaluate HVDC wall bushing performance in wet weather
- 1 January 1990
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Delivery
- Vol. 5 (4) , 1782-1793
- https://doi.org/10.1109/61.103674
Abstract
Two test methods are developed to simulate the conditions causing flashover of DC wall bushings at working voltage. One is based on the clean-fog pollution test. The other is a rain test, with part of the bushing unwetted. The effect of varying test parameters is measured and five variants of rain test are adopted for measuring the performance of a wall bushing. Its performance compared unfavorably with that of an empty porcelain shell. Various numbers of booster sheds (removable silicone-rubber cones fitted round the bushing) are found to improve its performance substantially.Keywords
This publication has 7 references indexed in Scilit:
- Pollution and rain flashovers on HVDC wall bushingsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- An investigation of the horizontally mounted insulators for HVDC stationsIEEE Transactions on Power Delivery, 1989
- Variable-voltage application for insulator pollution testsIEEE Transactions on Power Delivery, 1988
- Final Report on the Clean Fog Test for HVAC InsulatorsIEEE Transactions on Power Delivery, 1987
- Survey of Creepage Distances and Clearances in HVDC Converter StationsIEEE Transactions on Power Apparatus and Systems, 1985
- The Booster Shed: Prevention of Flashover of Polluted Substation Insulators in Heavy WettingIEEE Transactions on Power Apparatus and Systems, 1978
- Artificial- and natural-pollution tests on outdoor 400 kV substation insulatorsProceedings of the Institution of Electrical Engineers, 1971