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Home News Power Sector News Sholapur-Raichur 765KV line commissioned on 31-12-2013

Sholapur-Raichur 765KV line commissioned on 31-12-2013

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Transmission LineSouthern region's power grid was connected to the rest of the country's transmission network on 31-12-2013 after the state-owned transmission company Powergrid Corp (PGCIL) commissioned a power line between Sholapur in Maharashtra and Raichur in Karnataka, the power ministry has said. The inter-connection would enable inter-regional flow of power helping cut electricity deficit in the seven states in the South and ease power prices in the spot market. The new power link, a single-circuit 765 Kilo Volt (KV) line, has been constructed at a cost of Rs 815 crore.

With this interconnection, the Indian power system entered a new era and became one of the largest operating synchronous grids in the world with about 232GW of installed power generation capacity, said a press release by the Union power ministry.

""Synchronous integration of the Southern grid with the rest of the national grid will not only augment the inter-regional power transfer capacity of the Southern region but also relieve the congestion being experienced in a few transmission corridors. This would be a boost for the further economic growth of the country. It is likely to take a few months before power flow over this line is stabilised," the Ministry of Power said in a statement on Wednesday.

The entire country is divided into five regional electricity grids — Northern, Eastern, Western, North-Eastern and Southern. Till now, four grids (excepting Southern) were operating in a synchronous mode. This means, electricity across these regions flows seamlessly in line with the demand and supply matrix.

Since the Southern grid was not connected, the States in the region faced problems in the import of electricity from the rest of the country. Neither could they supply power to States outside the grid when there was excess supply.

Synchrony of power transmission lines refers to their ability to withstand sudden and large variations in power flow that cause tripping and blackouts.

Synchronous integration of southern grid with the rest of the national power grid will not only augment the inter-regional power transfer capacity of the southern region but also relieve the congestion being experienced in a few transmission corridors. This will be a great boost for further economic growth of the country. It might take a few more months before power flow in this line was established, the release said.

Power-starved states like Tamil Nadu, Andhra Pradesh and Karnataka were waiting for the line to be interconnected for them to transmit power purchased from surplus states in north and eastern regions. The line has been connected five months ahead of schedule by the Power Grid Corporation of India.

Chief minister J Jayalalithaa had written letters to Prime Minister Manmohan Singh blaming the power crisis the state was facing for the lack of a facility to transmit power from private producers in the north as well as states with excess power to the state grid.

The inter-connection of the southern grid with the central grid is the last among the regions to be connected to the all-India grid. The north, west, east and north-east regions were connected earlier.

"The Sholapur-Raichur line is being connected months ahead of the scheduled date," director Power Grid Corporation I S Jha said. "In the first month, the line may not transmit power to the full capacity and it will take at least four months before the line becomes fully operational," Jha said.

The Indian national grid now is a complex mesh of inter-regional transmission lines running criss-cross between the Northern, Eastern, Western, North-Eastern and Southern grids. The network has a capacity to transfer 2,32,000 Megawatt of power.

Source- Business standard

 

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