TEESTA - V
Teesta-V Power Station (3x170 MW) is a run of the river scheme with diurnal storage to harness the hydro power potential of river Teesta for peaking during the lean season and is located in the state of Sikkim. The Power Station was commissioned in the year 2008. The layout plan features and photo gallery of the Power Station are detailed below:
| Feature Name | Description |
|---|---|
| Location | East Sikkim, Sikkim |
| Approach | Nearest Rail Head – New Jalpaiguri. Nearest Airport - Pakyong/Bagdogra |
| Capacity | 510 MW (3 x 170 MW) |
| Design Energy | 2573 MUs (90% dependable year with 95% machine availability) |
| Beneficiary States/UTs | Bihar, Sikkim, West Bengal, Orissa, Jharkhand and DVC |
| Date of Commercial Operation (COD) | U#1: 10/04/2008 U#2 :01/03/2008 U#3: 03/04/2008 |
| Dam: | |
| Type | Concrete gravity dam |
| Height | 88.6 m |
| FRL: | 579 m |
| MDDL | 568 m |
| HRT | |
| Type | Horse shoe shape |
| Length | 17200 m, |
| Diameter | 9.5 m |
| Surge shaft | |
| Type | Restricted orifice type |
| Height | 92.5 m |
| Dia | 30 m |
| Penstock | |
| Numbers | 3 |
| Length | 321 m each |
| Pressure shafts | (4.7 m dia and 174 m high each vertical) |
| TRT | |
| Tail race Tunnel | 3 nos, 6 x 5.52 m size, 165m &175m & 185m |
| Max TWL | 360 m |
| Power House | |
| Type | Underground |
| MaxCapacity | Consisting of 3 units of 170 MW each |
| Turbine | |
| Type | Francish |
| Rated head | 197 m |
| Discharge | 281 cumecs (For all 3 units) |
| Number of guide vanes | 20 per unit |
| Generator | |
| Rated Output | 189 MVA |
| Rated Voltage | 13.8 kV |
| No of Poles | 28 |
| Rated speed | 214.3 RPM |
| Generator Step up Transformer (GSU) | |
| Type | 1-Ф |
| Voltage Ratio | 13.8 / 400/√3 kV |
| MVA Rating: | 70MVA |
| Type of cooling | OFWF |
| Pot Head yard /Gas Insulated Switchgear | |
| Type | GIS |
| Voltage level | 400 kV |
| No. of lines | 2 nos Teesta V - Rangpo Lines (I & II) |