Characterization preliminary breakdown in the measured lightning electric fields

Abstract

In this study, characterization of measured electric fields due to lightning channel was done. Likewise, previous studies on this case were reviewed and discussed accordingly. Furthermore, preliminary breakdown was done in detail and it was indicated on the real measured electric fields and the results were discussed. The behavior of preliminary breakdown signal was observed. This study shows that it will be easier to design filtering of the preliminary breakdown. The result show compelling agreement with theoretical predictions and significant improvement over previous effort by Clarence and Malan, Weidman and Krider and Rakov , et al. the work presented here has profound implications for future studies of Preliminary Breakdown and may one day help solve the problem of designing protection level for Electrical Engineers. The results show that the occurrence of PBP is in between 2 to 10 milliseconds before return stroke as agreed with Clerence and Malan.

An analysis of manual and autoanalysis for submicrosecond parameters in the typical first lightning return stroke

“…Therefore, it appears there is no different between the results. According to [40], [53] the duration of the zero-crossing rises as a result of the increased current moment and charges to be neutralized in the initial return stroke in a lightning event. All the researchers mentioned in Table 2 used same measurement technique known as accurate-stroke-count that based on measurements based on the correlated electric field recording on the electric fields generated by the whole flash with high levels of temporal resolution [4].…”

“…Although there are several lightning locating systems in the world, the lightning analysis system is inadequate. When analyzing lightning data, all of the systems rely on manual measurement [52], [53].…”