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BHEL implements UHVDC link between Western and Southern region grid

Tuesday, 14 Sep 2021
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Bharat Heavy Electricals (BHEL) has implemented +800 kV, 6,000 MW Ultra High Voltage Direct Current (UHVDC) Link between the Western region grid (Raigarh, Chattisgarh) and the Southern region grid (Pugalur, Tamil Nadu). 
 
BHEL is associated in building the project of national importance, which will bring relief to the power deficit Southern Grid. 
 
For this project, among other equipment and systems, the company has contributed by supplying converter transformers, shunt reactors, filter bank capacitors and instrument transformers from its Bhopal plant in Madhya Pradesh and Thyristor valves from its Electronics Division, Bengaluru, Karnataka. 
 
These Thyristor valves are used to convert AC power generated at the IPPs at Raigarh into DC power for transmitting it over a HVDC transmission line of over 1,800 km and then converting it back into AC at the Pugalur-end for interconnection with the Southern grid. 
 
BHEL, in partnership with Hitachi-ABB Power Grids, had secured this order from the Power Grid Corporation of India (PGCIL) in 2016.
 
This is the second UHVDC transmission project by BHEL. Prior to this, BHEL had successfully executed the first-of-its-kind in the world Agra Converter Terminal for North-East Agra +800 kV, 6000 MW, Multi-Terminal HVDC link in September-2016 (Bipole-1) and September-2017 (Bipole-2).
 
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