Application of FACTS in Indian power system

Flexible AC transmission system (FACTS) is a technology-based solution envisioned to help the utilities deal with changes in the power delivery business. Its role in enhancing the transfer capability of existing transmission system under steady state as well as improving system security under dynamic contingencies has ushered in a new era. Inspired with the success of such ventures necessitated due to the right-of-way and other problems elsewhere in the world, in India a project has been undertaken on a 400 kV line between Kanpur (Uttar Pradesh) and Ballabhgarh (Haryana) in the Northern Grid. It has a 27% fixed and an 8% variable capacitor section. The latter can be raised to 20% through thyristor control. Power carrying capacity is envisaged to be increased from 400 to 600 MW.