Correction of Switching Impulse Flashover Voltages for Air Humidity
- 1 March 1970
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Apparatus and Systems
- Vol. PAS-89 (3) , 441-447
- https://doi.org/10.1109/tpas.1970.292721
Abstract
Long time measurements on rod gaps are described. The statistical evaluation of results is followed by the extraction of the influence of air humidity upon two waves in the region of minimum flashover voltages. The corrections decrease with increasing spacing of gaps in a way similar to the corrections for air densities. Therefore, the IEC correction can be applied only for spacing below 1.5 meters. No substantial difference between rod-plane and rod-rod spark gap for positive waves has been observed. About 250 S curves have been evaluated.Keywords
This publication has 3 references indexed in Scilit:
- Influence of Air Density on Electrical Strength of Transmission Line InsulationIEEE Transactions on Power Apparatus and Systems, 1967
- Effect of humidity on flashover of air-gaps and insulators under alternating (50 c/s) and impulse (1/50 μs) voltagesProceedings of the Institution of Electrical Engineers, 1963
- Statistical MethodsSoil Science, 1957