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The effects of nonstandard lightning voltage waveshapes on the impulse strength of short air gaps

Journal Article · · IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States)
DOI:https://doi.org/10.1109/61.329531· OSTI ID:6868507
;  [1]; ;  [2]
  1. Tennessee Technological Univ., Cookeville, TN (United States)
  2. Oak Ridge National Lab., TN (United States)
Sphere-sphere, rod-rod and rod-plane air gaps, each 5-cm long, were tested with lightning surges of eight voltage waves of both polarities. The critical breakdown voltage levels of the tested air gaps attained a minimum plateau within specific range of wavefronts of the lightning surges. Long time delays of breakdown for the fast-front and short time delays for the slow-front waves were observed. These phenomena would significantly affect the insulation coordination of the power apparatus and systems.
OSTI ID:
6868507
Journal Information:
IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States) Vol. 9:4; ISSN 0885-8977; ISSN ITPDE5
Country of Publication:
United States
Language:
English