The Lightning Protection Assessment of Distribution Lines with Considering Frequency Grounding System

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

Gholami Aida; Khodsuz Masume; Mashayekhi Valiollah

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: IRANIAN JOURNAL OF ELECTRICAL AND ELECTRONIC ENGINEERING Year:2025 | Volume:21 | Issue:1 Page(s): 191-205

Download Full-Text

View:

Download:

Cites:

Information Journal Paper

Title

The Lightning Protection Assessment of Distribution Lines with Considering Frequency Grounding System

Author(s)

Gholami Aida | Khodsuz Masume | Mashayekhi Valiollah | Issue Writer Certificate

Keywords

Distribution System

Frequency Grounding System

Lightning Overvoltage

Surge Arrester.

Abstract

Ensuring the protection of all components within power systems from lightning-induced overvoltage is crucial. The issue of power interruptions caused by both direct and indirect lightning strikes (LS) presents significant challenges in the electrical sector. In medium voltage distribution feeders, the relatively low dielectric strength makes them susceptible to insulation degradation, which can ultimately lead to failures in the Distribution System. Therefore, implementing effective protective measures against LS is vital for maintaining an acceptable level of reliability in Distribution Systems. This paper presents an analytical assessment of LS-induced system overvoltage through high-frequency modeling of components within a 20kV Distribution System. The study utilizes EMTP-RV software for precise component modeling, including the grounding system, Surge Arrester., and distribution feeders. Additionally, the operational impacts of protective devices, such as ZnO Surge Arrester., shield wires, and lightning rods, are evaluated to mitigate LS-induced overvoltage. A Frequency Grounding System is implemented using the method of moments (MOM) to analyze the grounding system's influence on LS-induced overvoltage. Furthermore, eight different scenarios are explored to assess the anti-LS capabilities of the 20kV Distribution System. Each scenario involves evaluating dielectric breakdown and overvoltage across the insulator chain while proposing suitable protective solutions. The results indicate that the absence of shielding wires and Surge Arrester. leads to higher breakdown voltages, with the lowest breakdown voltage occurring when Surge Arrester. are installed during LS events. Additionally, the use of a Frequency Grounding System, due to its accurate modeling, yields more precise results compared to a static resistor approach. The MOM simulation reveals a 50% reduction in breakdown voltage under the worst-case scenario, and overall overvoltage experiences a 2% decrease.

Multimedia

No record.

Cites

No record.

References

No record.

Cite

Related Journal Papers

No record.

Related Seminar Papers

No record.

Related Plans