Salient Features
Technical Information
|
Item |
|
|
|
Reservoir |
Full Supply Level (FSL) |
415.0 m |
|
Minimum Operating Level (MOL) |
378.0 m |
|
|
Available depth |
37.0 m |
|
|
Sedimentation level |
320.0 m |
|
|
Gross Storage Capacity |
295.1 X 106 m3 |
|
|
Effective Storage Capacity |
During First 10 years; 192.8 X 106 m3 |
|
|
After 11th years; 181.7 X 106 m3 |
||
|
Dam |
Type |
Concrete Gravity Dam |
|
Elevation of Dam Crest |
420.0 m |
|
|
Height of Dam |
140.0 m |
|
|
Length of Dam Crest |
175.0 m |
|
|
Volume of Dam |
806 X103 m3 |
|
|
Sediment Flushing Facilities |
Inlet Still Elevation |
320.0 m |
|
Gradient of Conduit |
1:15 m |
|
|
Upstream Maintenance Gate Span X Height |
Slide Type Steel Gate 5 m X 5 m |
|
|
Intermediate Maintenance Gate Span X Height |
High Pressure Slide Gate 5 m X 5 m |
|
|
Downstream Auxiliary Gate Span X Height |
High Pressure Slide Gate 5 m X 5 m |
|
|
Spillway |
Design flood |
7,377 m3/s |
|
Type |
Chute |
|
|
Elevation of Overflow Crest |
EL. 399.0 m |
|
|
Width of Overflow Crest |
49.5 m |
|
|
Energy Dissipater |
Ski Jump |
|
|
Type of Gate |
Radial |
|
|
Size of Gate |
16.5 m span X 16.5 m height |
|
|
Intake |
Number |
1 |
|
Type |
Tower Type Intake |
|
|
Headrace Tunnel |
Number |
One |
|
Inner Diameter |
7.4 m |
|
|
Total Length |
1,162 m |
|
|
Penstock |
Type |
Tunnel |
|
Number |
One |
|
|
Inner Diameter |
7.4 m to 3.1 m |
|
|
Total Length |
175 m |
|
|
Draft Tunnel |
Length |
85.8 m |
|
Tailrace Tunnel |
Diameter |
7.4 m |
|
Length |
117 m |
|
|
Power House |
Type |
Underground |
|
Size |
27 m wide X 46 m high X 97 m long |
|
|
Development Plan |
Rated Intake Water Level |
405.0 m |
|
Tail Water Level |
289.2 m |
|
|
Gross Head |
115.8 m |
|
|
Effective Head |
112.5 m |
|
|
Maximum Discharge |
127.4 m |
|
|
Number of Unit |
Two |
|
|
Installed Capacity |
Rated Capacity: 127 MW |
|
|
Maximum Capacity: 140 MW |
||
|
Peak Time |
6 hours |
|
|
Primary Energy |
During first 10 years: 266.2 GWh |
|
|
After 11th years: 241.4 GWh |
||
|
Secondary Energy |
During first 10 years: 319.5 GWh |
|
|
After 11th years: 248.5 GWh (Excluding Generation Facility for Environmental Flow) |
||
|
Total Energy |
During first 10 years: 585.7 GWh |
|
|
After 11th years: 489.9 GWh (Excluding Generation Facility for Environmental Flow) |
||
|
Turbine |
Type |
Vertical Shaft, Francis Turbine |
|
Number |
Two |
|
|
Rated Output |
71,800 kW |
|
|
Generator |
Type |
Three Phase, Synchronous Generator |
|
Number |
Two |
|
|
Rated Output |
74,700 kVA per unit |
|
|
Revolving Speed |
300 RPM |
|
|
Frequency |
50 Hz |
|
|
Voltage |
13.2 kV |
|
|
Power Factor |
0.85 lag |
|
|
Main Transformer |
Type |
Indoor, Special Three-phase, Forced-oil- circulated and forced-water-cooled |
|
Number |
Two |
|
|
Capacity |
82,300 kVA |
|
|
Voltage |
Primary 13.2 kV |
|
|
Secondary 220 kV |
||
|
Switchyard |
Type |
Gas Insulated Switchyard (GIS) |
|
Bus System |
Single Bus |
|
|
Number of Lines Connected |
Double Circuit Transmission Line |
|
|
Voltage |
220 kV |
|
|
Transmission Line |
Length |
39 km |
|
Type of Transmission Tower |
Steel Lattice Tower |
|
|
Number of Circuit |
Two |
|
|
Voltage |
220 kV |
|
|
Conductor Type |
380 mm2 X ACSR (Bison) |
|
|
Generation Facility for Environmental Flow |
Rated Output and Maximum Output |
1,700 kW & 1,900 kW |
|
Effective Head |
92 m |
|
|
Discharge |
2.4 m3 |
|
|
Distribution Line Voltage |
11 kV or 33 kV |
|
|
Turbine Type |
Horizontal Type, Francis Turbine |
|
|
Generator Type |
Horizontal Type, Three-Phase Synchronous Generator |
|
|
Distribution Transformer |
Dry or oil immersed, Capacity: 1,970 kVA |
|
|
Average energy |
During first 10 years: 14.0 GWh |
|
|
After 11th years: 13.0 GWh |
||