GE to deliver wide area monitoring system for India’s power grid

GE Power’s Grid Solutions business won a commission of the first leg of the mega grid-stabilization project by handing over a wide area monitoring system (WAMS) solution to Power Grid Corp. of India (PGCIL) for the Northern Grid in India.

The project is part of the Unified Real Time Dynamic State Measurement (URTDSM) initiative that entails monitoring and controlling of the electricity supply across the country which will positively impact India’s total population. The project has been executed by GE T&D India Limited, listed entity of GE Power’s Grid Solutions business in India.

This first stage will enable PGCIL to monitor power flow across 110 substations in the Northern Grid and respond to fluctuations within a fraction of a second. This will be critical in addressing power demand-supply imbalances and ensuring grid stability benefitting from the integration of renewable energy with the grid. The northern grid covers nine control centers, namely Punjab, Haryana, Rajasthan, Delhi, Uttar Pradesh, Uttarakhand, Himachal Pradesh, Jammu & Kashmir and Chandigarh.

When fully commissioned, this new WAMS solution will be comprised of 1,184 phasor measurement units (PMUs) and 34 control centers across India, 350 substations in the national grid. Part of GE Power’s Digital Energy portfolio, this solution obtains input data 25 times per second from all the PMUs installed (as compared to conventional SCADA, sampling once in nearly 5 seconds), with real time views on geographic displays, analytical applications and the capacity to store 500 TB of data.

Moreover, it will also fully secure the grid from any cyber security threat, incorporating the latest firewall policies. The development and testing of the new software and substation devices was undertaken by GE teams from India, the UK and USA supported by PGCIL teams for a duration of two years.

Today, the Indian electricity network is the world’s largest synchronized grid with a capacity of 363 GW. In July 2012, India suffered the world’s biggest power blackout due to a grid failure which impacted more than 620 million people across 22 states. A committee of international experts formed by the government to minimize the future possibility and impact of grid failure, recommended the implementation of a WAMS solution across the country to measure the dynamic state of the grid and detect the onset of any unstable oscillation event.

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The Clarion Energy Content Team is made up of editors from various publications, including POWERGRID International, Power Engineering, Renewable Energy World, Hydro Review, Smart Energy International, and Power Engineering International. Contact the content lead for this publication at

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