India's generating capacity is to grow from 232 GW in 2014 to 800 GW in 2030.Indian power system is becoming smarter by integration of information technology and communication system in conventional grid. Intelligent components make it possible to work traditional grid smart way by using features like two way communication, selfhealing, self-outage recovery, use of smart sensors etc. This provides reliable, stable, economic and quality power to end users by better utilization of currently available assets of power grid. In this paper efforts have been taken to explain Smart grid and its component, benefits of smart grid and how the smart grid is different from traditional grid. Also pilot projects Under R-APDRP scheme in India are discussed for various states. And various companies taking interest for development of smart grid are listed with its contribution of development.
Abstract:Transformer is one of the sensitive components of the smart grid. The transformers already installed, will be in service for next 25 years .Very few transformers have ability to sense the parameters like voltage, current, and temperature. The next generation of transformers will require implementation of remote monitoring of a system parameters and wide range of transformers. Online transformer monitoring using advanced metering infrastructure (AMI), Advance Sensor infrastructure (ASI) is necessary for efficient operation of the smart grid. An AMI system can be effectively used as a low-cost distribution transformer monitor. The safety of the transformer plays a vital role in smooth operation of a smart grid. Dissolved gas analysis, use of vegetable oil-based dielectric coolants, ensures reliability and safety respectively of the transformer operation. Now a days many transformer manufacturers are incorporating the real time monitoring of the temperature, pressure, vacuum especially for step up transformers. Real time monitoring system consists of embedded system, GSM modem, mobile-users and GSM networks and sensors installed at transformer site. Features of Solid State Transformer (SST), Bidirectional Intelligent Semiconductor Transformer (BIST) for smart grid applications are discussed in this paper. Also, the different ways for improving efficiency of the smart grid by ensuring the safety of the transformer are focused.
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