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DMRC builds first underground power substations

Last Updated: Thursday, December 29, 2011 - 17:13

New Delhi: In first-of-its kind in the
country, Delhi Metro has constructed two underground
substations here that will feed power to the high speed
Airport Metro Express and plans to build nine such substations
for its upcoming phase-III project.

The two substations, set up at an area of 5,000 sq km at
Church Road near North Block and Rashtrapati Bhawan, will also
feed the Central Secretariat-Badarpur line from next month.

"The substation, which is six metre below the ground, has
already started feeding the Airport Line since June and would
provide power supply to the Central Secretariat-Badarpur Line
from next month," Delhi Metro Rail Corporation Director
(Electrical) Satish Kumar said.

Built with an investment of Rs 60 crore in one-and-half
year, the substations -- first of kind in India -- have been
constructed with special ventilation, drainage and earthing
system and house imported Gas Insulated Switchgear that saves
space in comparison to air-insulated equipment, he said.

There is switching arrangement at the two inter-connected
substations in case of power shutdown, Kumar said.

The top of the substations is maintained as park as per
provisions of local laws in Lutyens zone that prohibited
construction of the structures above the ground.

Kumar said NDMC has approached the DMRC to build such
substations for it.


First Published: Thursday, December 29, 2011 - 17:13

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