title: Modeling of Grounding Electrode Testing under Lightning Impact
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: ÐÐ¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¸ÑÐ¿ÑÑÐ°Ð½Ð¸Ñ Ð·Ð°Ð·ÐµÐ¼Ð»ÑÑÑÐ¸Ñ ÑÐ»ÐµÐºÑÑÐ¾Ð´Ð¾Ð² Ð¿ÑÐ¸ Ð³ÑÐ¾Ð·Ð¾Ð²Ð¾Ð¼ Ð²Ð¾Ð·Ð´ÐµÐ¹ÑÑÐ²Ð¸Ð¸
Creators: name: ÐÐ°ÑÐ°Ð¹, ÐÐ°ÑÐ¸Ð°Ð»Ð°Ð¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2024
Subjects: Ð­Ð»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÐµÑÐ¸
vertical grounding electrode
lightning
grounding resistance
soil resistivity and dielectric permittivity
grounding resistance testing
current dissipation
grounding potential
distance of testing electrodes from grounding electrode

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description: Modeling of grounding electrode testing under lightning impact is a complex task for measuring real grounding resistance once the facility installation is completed. This measurement is very important to take necessary arrangements for the better grounding system performance against lightning strikes. this study concentrates on modeling and testing of vertical grounding electrode against lightning impulses in soil. To achieve this, 2D and 3D models were developed in COMSOL software, these models have been simulated under lightning impulse used Finite Element Analysis as per coupling of electrical and magnetic fields, the magnitude of voltage and grounding resistance were measured. In addition, analysis was conducted to investigate current impulse magnitude and wave shape on soils frequency-dependent resistivity and dielectric permittivity properties. The study concluded with obtaining numerical values of 5 to 7 as placement ratio factor for positioning testing current electrode from the main grounding electrode, which will save time and resources during actual test at field. Further research has to be conducted for different soil layers combined with real field investigation. Overall, this research provides a comprehensive approach to modeling and testing grounding electrodes under lightning impact, contributing to improved safety and performance of grounding systems.