Capacity : 3 MW
Peppara Small Hydro Electric Project (3 MW)
Peppara Small Hydro Electric Project is situated at Peppara in Trivandrum District in the bank of Karamana river.The power plant was inagurated by Honourable Chief Minister of Kerala Sri.E.K. Nayanar on 15-06-1996. Power house site is 47km from Trivandrum. The project has installed capacity of 3 MW. Peppara hydroelectric power plant is running with 1 number of generation units of 3 MW. The reservoir for the project is formed by Peppara Dam, across Karamana river, owned, controlled and operated by Kerala Water Authority for the purpose of Drinking water supply. Tail race discharge, after power generation from the power station is released to the Karamana River and collected at Aruvikkara Dam for domestic water supply to Thiruvananthapuram city .The Power generated in the station is at 11 kV, 50 Hz and is directly connected to the 11 kV dedicated feeder to 33 kV Vithura Substation
Salient Features
Location: Peppara, Thiruvananthapuram
Category: Hydro Power Project
Capacity: 3 MW
River :Karamana
Dam: Peppara Dam
Annual Energy Potential :11.5 MU
Generation per MCM: 19.55 MU
Design Discharge through Machine: 18 m3/s
Design Head: 21 m
Design PLF (%) : 43.33
Reservoir
Catchment Area 86 sqkm (33.20 sq mile)
Gross Storage 70 MCM
Full Reservoir Level (FRL) 362.53 ft (110.5 m)
Min. Draw Down Level (MDDL) 269.85ft (82.25 m)
Date of commissioning
Unit Rating Date of commissioning
Unit 3 MW 15.06.1996
Technical
1. TURBINE
a) Type: S-Type-Kaplan Horizontal (17.5 KR 52)
b) Make: M/s. KosslerGES.m.b.H
c) Design Net Head: 21 m
d) Rated output: 3 MW
e) Normal Speed: 375 rpm
f) Runaway Speed: 1100 rpm
g) Discharge through Machine: 16.3 m3/s
2. GENERATOR
Features Unit
a) Type Rotating Salient Pole Type, Brushless
b) Make M/s. JYOTHI Ltd
C) Rated Voltage (V): 11000
d) Rated Output (kVA): 3530
e) Speed (rpm) 750
f) Power factor: 0.85
3. Power Evacuation
1. 11 kV Peppara feeder
2. 11 kV Theviyode feeder