Abstract
Electricity grid interconnections have played a key role in the history of electric power systems for economic and optimum utilization of resources. Most national and regional power systems that exist today have begun many decades ago as isolated systems. In similar way, Indian grid has also evolved from state grid to regional grid and then their synchronization one after another. On 31st December 2013, the interconnection of NEW Grid and Southern grid in Indian power system has resulted in accomplishing the final stage of Indian grid synchronization. This synchronization was unique in the sense that operator at Regional and National control centre were able to monitor the each phase of synchronization with the help of synchrophasor measurements. This paper describes the experience of System operator gained from NEW-SR grid synchronization with the help of synchrophasor measurements.
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