Artificial Pollution Testing of HVDC Insulators


K. Devender Rao
P. Rajamani
B. Krishna
Pradeep M. Nirgude


A review is presented on the performance of insulators under artificial pollution testing of HVDC insulators in the laboratory as per the test methods described in the standards which establishes the test facility required to meet technical specifications. Also, another test facility established as per the requirements of the standard for insulators used in the DC system is the puncture test. These two tests form an important characteristic for designing the insulators and reducing outages in transmission lines. Creepage length forms an important designing criterion for the insulators which influences the pollution performance wherein the puncture in an insulator reduces the creepage. The pollution test results had compared with the available literature and the results are found to be within the specified limits. In addition to the various tests specified in the relevant standard for DC insulators, establishing the test facility cater to one of the important test requirements for DC insulators i.e., artificial pollution test and puncture test which is the vision of Govt. of India in line with to make in India and atmanirbhar Bharat initiatives.


How to Cite
Rao, K. D. ., Rajamani, P. ., Krishna, B. ., & Nirgude, P. M. . (2023). Artificial Pollution Testing of HVDC Insulators. Power Research - A Journal of CPRI, 19(1), 23–28.


  1. Mallikarjuna B, Murladhara V, Vasudev N, Ravi KN. Quality analysis of insulators subjected to HVDC applications- A review. NCHVET; 2017.
  2. Lampe W, Hoglund T, Nelllis C, Renner P, Stearns R. Longterm tests of HVDC insulators under natural pollution conditions at the Big Eddy test center. IEEE Trans Power delivery. 1989; 4:248-259.
  3. Fazelian M, Wu CY, Cheng TC, Nour HI, Wang LJ. A study on the profile of the insulators- dc flashover performance. IEEE Trans Electrical Insulation. 1989; 24:119-125. https://
  4. Chang TC, Wu CT. Performance of HVDC insulators under contaminated conditions. IEEE Transactions on Electrical Insulation. 1980; 15(3).
  5. IEC 61245: 2015. Artificial pollution tests on high-voltage ceramic and glass insulators to be used on DC systems.

Most read articles by the same author(s)