期刊
EUROPEAN TRANSACTIONS ON ELECTRICAL POWER
卷 21, 期 1, 页码 11-17出版社
WILEY
DOI: 10.1002/etep.406
关键词
charge simulation method; onset corona voltage and electric field; transmission line; bundle conductors
资金
- China Electrical Power Research Institute
The corona onset voltage (COV) for bare overhead bundle conductors for transmission lines has been investigated using numerical calculations and the gas discharge theory. First, an accurate numerical method, the charge simulation method, was used to calculate the electric field distribution in the vicinity of bare sub-conductors in bundles. Then the electric field values and a criterion from the gas discharge theory were used to evaluate the onset voltage for negative coronas on the bare sub-conductors. The COVs obtained are in good agreement with literature data for laboratory models and full-scale test lines. Some numerical results for the COV for six-bundle conductors are also discussed. Copyright (C) 2010 John Wiley & Sons, Ltd.
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