Investigation on Flashover Performance of 25 kV Traction System Section Insulator Assembly in DMRCL System
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Abstract
This paper describes the failure analysis of a section insulator assembly at one of the depot of Delhi Metro Rail Corporation Limited (DMRCL). Frequent breaker tripping at Saritavihar depot of DMRCL due to flashover of the section insulator assembly was observed; the cause of failure of the section insulator was investigated and presented in this paper. As a first step laboratory tests on new and used section insulator assemblies were conducted to make comparative analysis, and then simulation studies were carried out to estimate the possible over voltages during different switching operations and their relationship with the test voltages used in the experimental investigation. This paper presents the laboratory experiments and simulation studies for the failure analysis of section insulator assembly of DMRCL.
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How to Cite
Y., D., N., V., K., K., U. R., S. R., R. S., S. A., Gupta, A. K., & Wadhwa, M. (2013). Investigation on Flashover Performance of 25 kV Traction System Section Insulator Assembly in DMRCL System. Power Research - A Journal of CPRI, 183–190. Retrieved from https://node6473.myfcloud.com/~geosocin/CPRI/index.php/pr/article/view/888
References
- http://www.delhimetrorail.com/project_updates.aspx.
- http://en.wikipedia.org/wiki/Delhi_Metro.
- IEC 60383, Insulators for overhead lines with a nominal voltage above 1000 V.
- IEC 60060-1/2010-09, High voltage test techniques –Part 1: General definitions and test requirement.
- IEC 61109/2008-05, Insulators for overhead lines – Composite suspension and tension insulators for AC systems with a nominal voltage greater than 1 000 V – Definitions, test methods and acceptance criteria.
- IEC 60507/1991-04, Artificial pollution tests on high-voltage insulators to be used ona.c.systems.
- IEC 60071-3/1996-12, Insulation coordination - Part 2: Application guide.