In March 2013, the New Mariani Sub-station had been commissioned in Jorhat District with 20 MVAR reac- tive power compensation capacity. With this upgradation, connectivity at 400 kV voltage level between 400 kV Misa Sub-station, 400 kV New Mariani Sub-station & 400 kV Kohima Sub-station has been established. It has now become the first 400 kV Sub-station of upper Assam, which will serve as a key station for catering to augmentation of power in upper Assam, Nagaland, Manipur and the entire North Eastern Region. This capacity addition will add efficiency and robustness, leading to supply of reliable power.
The project has been commissioned timely despite limitations in wake of COVID-19 pandemic, difficult soil and weather conditions. The bays & additional 400 kV D/C line section for upgradation of Misa-New Mariani line from 220 kV to 400 kV level are now under commercial operation. The project has been commissioned as part of “Azadi Ka Amrit Mahotsav” marking 75 years of India’s Independence.
POWERGRID presently has 264 Sub-stations and 172,104 ckm and 464,292 MVA of transformation capac- ity. With the adoption of latest technological tools and techniques, enhanced use of automation and digital solutions, POWERGRID has been able to maintain average transmission system availability >99%.
Bhupendra Singh Chundawat is a seasoned technology journalist with over 22 years of experience in the media industry. He specializes in covering the global technology landscape, with a deep focus on manufacturing trends and the geopolitical impact on tech companies. Currently serving as the Editor at Udaipur Kiran, his insights are shaped by decades of hands-on reporting and editorial leadership in the fast-evolving world of technology.