UPPER SILERU HYDRO ELECTRIC SCHEME( 4 x 60 MW)
PREAMBLE:
<!--[if !supportLineBreakNewLine]-->
<!--[endif]-->
Upper Sileru Project is situated in the midst of Chintapalli agency in Visakapatnam District. It is about 160 KM from Narasipatnam road railway station and 220 KM from Visakapatnam. Water is drawn from a weir constructed across Sileru River at Guntawada 9 miles downstream of Balimela Reservoir.
The Project is constructed in two stages. Under first stage, 2 units of 60 MW each were commissioned at a cost of Rs.18.5 Crores and another 2 units of 60MW each were commissioned under second stage at a cost of Rs. 47.5 Crores.
I SALIENT FEATURES
1. Location : Upper Sileruin Midst of Chintapalli Agency, 200 KM from Visakhapatnam
2. Category : Hydro Electric Project
3. Capacity : 4 x 60 MW = 240 MW
4. River : Sileru
5. Dam : Fore bay Dam
6. No. of Units : 4 Nos.
7. Annual Energy Potential : 575 MU
II. HYDROLOGY:
1. Reservoir : Guntawada Reservoir
2. Catchment Area : 1994 Sq. Miles
3. Max. flood discharge : 2,50,000 Cusecs
4. Live Storage : 3.108 TMC Ft. (88 M.Cum)
5. Gross Storage : 4.33 TMC
6. Dead Storage : 0.712 TMC
7. Generation per TMC : 6.43 MU
8. Design Head : 290 Ft.
9. Net head Max./Min : 310 / 290 Ft
10. Net HeadAverage : 304 Ft.
11. Full Reservoir level (FRL) : 1360.00 Ft
12. Min. Draw Down Level (MDDL) : 1333.50 Ft.
13. Tail Race water level : 1045 Ft
14. Design Disch. through Machine: 2592 Cusecs
III. FINANCIAL:
1. Estimated Cost : Rs. 18.06Cr.
2. Actual cost : Rs. 66.04 Cr.
3. Assistance : APSEB
4. Clearance by : CEA, MOE&F and PLG Commission GOI, 09/1973
5. Cost of KW installed : Rs. 15,417/- (Stage – I)
Rs. 39,617/- (Stage – II)
IV. COMMISSIONING DETAILS
Unit – 1 : 14th October’ 1967
Unit – 2 : 31st March’ 1968
Unit – 3 : 31st March’ 1994
Unit – 4 : 21st March’ 1995
V. TECHNICAL:
1. Turbine
a) Type : Francis Vertical
b) Make : Excherwyss, Charmilies Switzerland (Stage – I) BHEL (Stage – II)
c) Net Head : 90 M
d) Rated Output : 95000 BHP
e) Normal Speed :187.5 RPM
f) Runway speed : 350 RPM
2. Generator
a) Type :Synchronous
b) Make :Oerlikon, Switzerland (Stage – I)
BHEL (Stage – II)
c) Rated Voltage :11 KV
d) Rated Out put :60 MW / 66.67 MVA
e) Current :3500 A
f) Speed :300RPM
g) Power Factor :0.9 La
3. Generator Transformer
a) Make :TELK, Angamally, Kerela
b) Capacity :25 MVA, Single Phase (Out Door Type)
c) Voltage Ratio :11 KV/ 220 KV
4. Transmission Line :220 KV, 3 Nos. (Stage – I)
:220 KV, 2 Nos. (Stage – II)