Jorethang Loop HEP

Jorethang Loop HEP

Salient Features

Project location
Barrage
Type Gravity Floor on Permeable Foundation
Height of Barrage (from River Bed level) 15 m
Silt excluder tunnels Three (2.67mx3m each) located below the under sluice on intake side
Number of Gates Seven Vertical Lift Gates – Five spillway Gates and Two under sluice gates
HRT
Shape in cross-section Modified horseshoe
Length 6867 m
Diameter 7.10 m (Finished)
Lining   Fully concrete lined
Design discharge 140.00 m3/sec.
Surge Shaft
Type Restricted orifice type vertical
Diameter of Surge Shaft 25.0 m
Height 62 m
Penstock
Type and diameter Steel lined of 6.0m dia bifurcating into two of 4.25m at power house end
Design discharge 140.0 m3/sec
Total length 315m
Power House
Type Surface
Number of Units Two (2)
Installed capacity 96 MW
Machine Type Vertical Axis Francis Turbine
TRC
Type Tail Race Pool
Design Discharge 140 m3/sec.
Switchyard & Transmission
Switchyard Type Outdoor
Voltage/ Bus bars 220 kV/ 11 kV
Transmission Line Type Switchyard to Grid station at Melli, double circuit, 220 kV on same towers
Length 10 km