Oct - Dec 2009 • Vol. No. 32 Issue No. 2 • - L&T Construction

dedicated execution / co-ordination team of L&T two 315 kVA auto transformer and one 80 MVA
and POWERGRID. The two teams together left no bus reactor was also included in the scope.
stone unturned and began the works in two shifts
with 800 workmen bustling with activity to give
shape to their plans and blue prints.
This apart, the scope also included engineering,
supply, erection & commissioning of CRP alongwith
complete sub-station automation system with remote
The civil scope of works involved 52000 cu.m of access from Jamshedpur / Kolkata. All other auxiliary
excavation, 11835 cu.m of RCC for equipment / services such as illumination and fire fighting were
tower foundations, complete structure & finishes also included in the package.
for control room building, 1.4 km cable trench,
2.6 km bitumen road and 862 t of GI structures.
In addition to the main contract, LOA for Rs. 15.33
crore was issued on 16 February 2006 by
Erection, testing and commissioning scope POWERGRID for 400 kV bay extensions in Ranchi
includes major equipment for 400 kV Substation with a completion schedule of 18
requirements like 8 circuit breakers, 24 CTs, 12 months from the date of LOA. Work for this package
CVTs, 22 sets of isolators and 15 LA. Major was also taken up simultaneously along with the
equipment for 220 kV requirement like 8 circuit main package.
breakers, 24 CTs, 18 CVTs, 29 sets of Isolators
and 18 LA. Unloading, erection, testing and
commissioning of owners supply materials like
Scope for Ranchi (extension) package includes 400
kV major equipment like 4 circuit breakers, 12 CTs,
Control room as a part of the substation project