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Baspa
II > Technical Information |
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| Hydrology |
River
Baspa, a tributary of the river Sutluj, originates from
Baspa Bamak Glacier of great Himalayan ranges at an elevation
of 5800 m and flows mostly in a North-Westerly direction.
| Catchment
area at barrage axis |
967.72
sq.km |
| Snow
catchment |
514.15
sq.km |
| Design
flood (1 in 100 Years) |
1150cumec |
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| Diversion
Barrage |
| Type |
Gated,
61 m long ( 4 bays of 13 m each & 3 piers of
3 m each) |
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| Intake |
| Crest
level |
El.
2525.0 |
| No.
of intake bays |
4
bays each 4m wide |
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| Sedimentation
Chambers and Flushing Ducts |
| Particle
Size to be Excluded |
(+)
0.20 mm |
| Desilting
tanks |
2Nos. |
| Size
of tank |
138.5
m (L)x 17m(W)x11m(H) |
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| Head
Race Tunnel (HRT) |
| Length |
7950
m (excluding 103m of cut and cover portion) |
| Type
of Section |
4m
dia, Modified Horse Shoe |
| Lining |
Concrete
lining |
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| Surge
Shaft |
| Type |
Underground |
| Diameter |
6
m / 8 m |
| Height |
121
m |
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| Pressure
Shaft |
| No.
& Type |
1
no., steel lined 3.1m dia; 885m long with 1.8m dia
unit bifurcations U/S of Power House |
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| Power
House |
| Capacity |
3
x 100 MW |
| Type |
Underground |
| Size
of P.H. Cavern |
92
m (L) x 18m (W) x 39 m (H) |
| Size
of Transformer Cavern |
75
m (L) x 13m (W) x 20 m (H) |
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| Generation |
213
Million Units in 90% dependable year.
1391.61 Million Units per annum in 50% dependable year |
| Tail
Race Tunnel (TRT) and Unit TRT’S |
| Length
and Shape |
475
m long, 5.6 m/ 3.6 m, D shaped |
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| Hydraulic
Turbines (HYDRO-VEVEYSA, SWITZERLAND) |
| Type |
Pelton
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| Design
Head |
702
m |
| Net
Head |
677.2
m to 712 m |
| Rated
Output |
103
MW |
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Inlet Valve |
Spherical
Valve, 1.5 m Dia. |
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| Generators
(SIEMENS A.G., GERMANY) |
| Rated
Output |
111.11
MVA with 10% overload margin with higher temperature
rise |
| Rated
Voltage |
13.8
kV +/- 5% |
| Frequency |
50
Hz +/- 3% |
| Synchronous
speed |
375
rpm |
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| Main
Unit Transformers (BHEL) |
| No.
& Capacity |
3x41
MVA, Single phase for each unit |
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| 56.7
KM LONG, 400 KV D/C TRANSMISSION LINE BETWEEN BASPA-II
TO JHAKRI |
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