Vol.13, No.1, February 2024.                                                                                                                                                                               ISSN: 2217-8309

                                                                                                                                                                                                                        eISSN: 2217-8333


TEM Journal



Association for Information Communication Technology Education and Science

The Effect of Humidity and Temperature on Flashover in High Voltage Transmission Line Ceramic Insulators


Sitti Amalia, Hamdi Azhar, Bayu Hidayatullah, Abdul Rajab, Novizon Novizon, Yusreni Warmi, Andre Febrian Kasmar


© 2024 Sitti Amalia, published by UIKTEN. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. (CC BY-NC-ND 4.0)


Citation Information: TEM Journal. Volume 13, Issue 1, Pages 670-680, ISSN 2217-8309, DOI: 10.18421/TEM131-70, February 2024.


Received: 17 October 2023.

Revised:   27 January 2024.
Accepted: 05 February 2024.
Published: 27 February 2024.




This research aims to determine the flashover voltage on the surface of porcelain insulators on 150 kV transmission lines located in Payakumbuh, where the insulators are contaminated with dust and moss due to the effects of temperature and humidity. The experiment is carried out with only up to seven insulator plates due to the limitations of the available apparatus. For the further testing, a trend analysis is applied. According to the experimental results, a rise in temperature around the insulator will increase the flashover voltage value and accelerate the potential for a flashover event. This happens because high temperatures can reduce the insulator's dielectric strength and insulation resistance and increase the risk of flashover. The dielectric strength values decreased with an average decrease of 44.62% per insulator plate for dusty insulators and 45.08% for each plate for mossy insulators. The results aim to minimize flashover on transmission lines in hilly areas with relatively high contamination.


Keywords –Isolator, dust, moss, flashover, ceramic insulators.



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