Special Protection Scheme at BTPS Power Station

After 2003 free licensees’ act in power sector, it is observed that many power plants from public sector as well as from private sectors are going to be commissioned. The load growth in India is about more than 10% pa. As these plants are going to connect to the power grid, therefore the grid is going to become more complicated. Also the problems related to grid stability are enhanced. There shall be possibilities regarding failure of grid system and under such circumstance it is always desirable to island minimum single generating unit in power plant of specified geographical area. After islanding the generating unit, this unit has to survive not only for the restoration of grid but also for power supply to important consumers. For the grid stability and effective survival of islanded generating unit, it is mandatory to maintain the power balance equation. This paper focuses on the lacunae’s observed in implementation of special protection scheme to carry out islanding operation at Bhusawal Thermal Power Station (BTPS) by considering the case studies. The concepts of islanding, load shedding, generator tripping and along with importance of power balance equation is discussed. Efforts are made to provide the solution for the survival of islanding scheme.