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Estimation of the Attenuation Caused by Power Line Towers on an E1-HEMP Induced Excitation

Technical Report ·
DOI:https://doi.org/10.2172/1810225· OSTI ID:1810225
 [1];  [1]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

In a transmission line, the coupling between a line and a tower above ground is evaluated when the excitation is an E1 high-altitude electromagnetic pulse (HEMP). The model focuses on capturing correctly the effect of the coupling on the peak of the HEMP induced current that propagates along the line. This assessment is necessary to accurately estimate the effect of the excitation on the systems and components of the power grid. This analysis is a step towards a quantitative evaluation of HEMP excitation on the power grid. The results obtained indicate that the effect can be significant, especially for lines heights of 20 meters or more.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
DOE Contract Number:
AC04-94AL85000; NA0003525
OSTI ID:
1810225
Report Number(s):
SAND2020-11290; 697418
Country of Publication:
United States
Language:
English

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