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India’s PowerGrid Emerges as Winner in High Voltage Transmission Segment

The transmission force of new system is nearly 5,454 times more than that of domestic power supply and around 48 times more than the voltage.

August 10, 2016

Jointly with a bunch of around 35 electrical equipment manufacturers, India’s PowerGrid has developed an excellent system for bulk power transmission up to 1,200 kV. The transmission force of this new system is 5,454 times more than the voltage at which electricity is supplied through overhead wires to locomotives. Ratings of 1,000 kV and above qualify as ‘ultra-high voltage (UHV)’ and UHVAC (ultra-high voltage alternate current) systems allow more power to be pushed through a line to make more efficient use of infrastructure and reduce costs.

Two lines connecting PowerGrid’s national UHVAC testing station between Bina in Madhya Pradesh and Wardha in Maharashtra have been successfully reconfigured to 1,200 kV rating using equipment manufactured by BHEL, CGL and Indian arms of ABB, Toshiba, Siemens and Crompton Greaves, among others. The first commercial UHVAC line is coming up between Satna and Wardha, covering a distance of 400 km. The testing station has drawn the attention of utilities across the world who is seeking inputs for developing international standards for UHVAC transmission systems.


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