TWO significant contracts have been awarded by Delhi Metro Rail Corp as part of the rapid expansion of its network. Delhi opened its first line in 2002 and now has three lines in operation totalling 65 km and 59 stations.

ABB India will deliver a turnkey electrification package worth Rs2·9bn covering the whole of Phase II. This includes 10 sections of route comprising 100 route-km with 75 stations, incorporating both surface and underground lines.

Delhi's broad-gauge metro is unusual in using the main line standard of 25 kV AC rather than medium voltage DC. ABB will erect the overhead line, build and equip both lineside substations and the main feeding points from the national grid, and provide the Scada supervisory system that links these to the metro's electric traction control centre. The project is due to be completed early in 2010.

The second contract worth €43m covers the supply, installation and commissioning of the train control and signalling systems on extensions to Line 1 and 2 totalling 37 km. Due for completion by March 2010, the contract was awarded on June 6 to a consortium led by Alstom Transport which also includes Sumitomo Corp and Alstom Projects India Ltd.