Abstract
This paper presents the experimental outcomes regard to the flashover performance of pin, shackle and disc insulators under contaminated conditions. For making contaminated surface various samples are made like salt, dust, industry pollution and miscellaneous foreign particles of wet and dry conditions as per IEC testing techniques. Moreover, each insulator has been tested under above mentioned conditions. For each insulator its breakdown voltages were measured. After doing performance analysis of different insulators under contaminated condition measurement of breakdown voltages are done with incorporation of real field application of insulators and making analogy with various regions of India.
Highlights
Due to the demand of electric power is substantially improved in recent days
The flashover voltage characteristics have represent the details of breakdown voltage been observed for different insulators for var- obtained for Pin, Disc and Shackle insulator ious physical conditions
The results show that flashover voltage of insulators is found to be higher during dry condition as compared to polluted conditions
Summary
Due to the demand of electric power is substantially improved in recent days. Each and every electrical equipment must be designed, commissioned and tested for critical situations. Ceramic, polymeric types insulators are affected by NaCL and other foreign particles deposition and just due to that various flashover mechanisms have been observed under wet and dry conditions [3]. Outdoor insulators prone to external interventions and based on that its reliability is drastically reduced [15] Such contamination effects are not severe in terms of residential areas unlikely hilly and farming regions [16]. At present days due to prompt demand of power supply more industries are progressed to reach that power demand and those zones are affected harshly by several contaminations When this dust and other pollutant mixed with other wet and dry contaminant particles, as these pollutants are having contrary effects on life cycle of insulators and it reduces the dielectric properties of insulators in many regions of India like many states nearby coastal areas. The left over part of the paper is prepared as follows: Breakdown Mechanism, Experimental Details, Results and Discussions and Conclusion
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