PGCIL felicitates ABB’s superior project management

2014-06-09 - Customer awards ABB for completing the final link of India’s national power grid nine months ahead of schedule

Powergrid Corporation of India Limited (PGCIL), which transmits and distributes over half the power in India, felicitated ABB India for commissioning the last link substation in the national power grid, nine months ahead of schedule. R N Nayak, Chairman and Managing Director of PGCIL presented N Venu, President, Power Systems, with an award recognizing ABB India’s efforts.

The 765/400 kilovolt (kV) substation at Sholapur links the country’s southern grid to the national power grid. The scope of the project included design, engineering, manufacturing, supply, erection, and testing as well as the civil works for the 765 kV and 400 kV substation including the 500 MVA transformers.

With the completion of the Raichur-Sholapur high-voltage transmission line, all of India’s five regional grids are now connected into a national power grid and operate on a single frequency. This marks the realization of India’s ‘One Nation – One Grid – One Frequency’ vision, defined in the 1990s. The national grid will help achieve a secure electricity supply in the country by transferring power from resource-rich regions to load-centric consumption centers. It will also establish an energy market for trading power across regions helping balance the demand and supply.

“We are proud to be associated with a project of such national importance,” said N Venu. “ABB has been a pioneer in India’s power network for many decades. We remain committed to developing and manufacturing solutions for the power sector in India.”

To date, ABB has supplied turnkey solutions for eight 765 kV substations to India’s extra high voltage (EHV) and ultra high voltage (UHV) power network. It has also supplied 765 kV transformers, circuit breakers and instrument transformers to substations executed by other turnkey system providers. In addition, it recently supplied a 1,200 kV transformer and hybrid gas-insulated switchgear for a test station operated by the Power Grid Corporation of India at Bina in Madhya Pradesh, Central India.

Innovative grid efficiency, reliability solutions
765 kV circuit breakers are uniquely designed such that the four interrupters in each phase are operated by a single drive (otherwise two drives). Having all the interrupters operating synchronously enhances the product reliability and reduces switching of over-voltage and the electrical stresses on the power network.

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