Chilime Hydropower Plant


Salient Features

River : Chilime Khola.
Type of scheme : Run of river with peaking pondages
Turbine discharge : 7.5m^3/s
Gross head : 351.5 m
Net head : 337.46 m
Installed capacity : 22.1 M W(2*11.05 M W)
Average annual energy : 137.9 GWh (137 million units)
Deemed energy : 132.9 GWh(132 million units)
Intake size : 2*5.50 m*1.2 m
Diversion Weir( L*H) : 13 m*3.25 m
Sluiceway Width : 3.0m
Desanding Basin Type : Dufour (Double Chamber)
Desanding Basin Dimension (L*B*H) : 60 m* 7.5 m*3.75 m
Syphon (L*D) : 58 m*2.2 m (Steel Pipe)
Power Canal (L*B*H) : 606 m* 2.2 m* 2.2 m
Feeder canal with Bemdang khola (L) : 82.15 m
Peaking pondage Storage Capacity : 53032 m^3
Pressure Conduit (L) : 414 m
Headrace Tunnel (L) : 2826.5 m
Underground Surge tank (D* H) : 6.5 m*33 m
Underground Penstock (L*D) : 635.5 m*1.64 m to 2.17 m
Transformer Cavern (L*W*H) : 67 m*10 m* 7.5 m
Switchgear Room (L*W*H) : 14 m* 12 m*8.5 m
Powerhouse Cavern (L*W*H) : 40 m to 50 m *16 m* 16.5 m
Tailrace tunnel (L*W*H) : 243 m* 3 m* 3 m
Turbine (Type & output) : Horizontal, Pelton (2*11.28 MW) Digital Governor
Generators (Type, Capacity & Voltage) : Brushless Excitation, 13 MVA, 11 KV
Transformers (Type, Capacity & Voltage) : Single Phase, 4.25 MVA * 7 Nos.
Switch gear Type : Gas Insulatyed Metal Clad (GIS System)
Transmission Line (L*V & Circuit) : 38 KM * 66 KV Single Circuit (Wolf Conductor)