Authors : U. Mohan Rao, R.K. Jarial and D. Vijay Kumar
Abstract: Grounding and bonding protects and safeguards major assets and personnel in the aspect of electric shocks, fires and even electrocution. So, it is required that grounding should be effective in the strength of operation. Hence, a procure care is to be taken while designing and installing it. An effective grounding system seeks not only knowledge for its design but also efficient and experienced personnel for implementation of its design and keeping it up to survive for all the upcoming climatic conditions. Proper maintenance is even essential for expecting an effective service from the grounding system. In this study, a High Voltage Engineering Laboratory which was installed in the year, 1995 is considered and a detailed study has been carried out on its grounding system regarding its design and installation. The grounding mat of this laboratory has been monitored for a period of >1 year at regular intervals and the behaviour of the earthing mat for changing climatic conditions has been observed and found that this maintenance had meet the standards in terms of resistance. Keeping in mind about the new installations to be done in future and the installations which are already done, the maintenance methodology and the experience obtained in its maintenance are also presented in this study.
U. Mohan Rao, R.K. Jarial and D. Vijay Kumar , 2011. High Voltage Grounding Design, Maintenance, Experience: A Case Study. International Journal of Electrical and Power Engineering, 5: 224-228.