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Department of Electrical Engineering
Industrial Visit Report
Sardar Sarovar Narmada Nigam Limited
Hydro Electric Power Station
on
10th March, 2017
Faculties Accompany: Prepared by:
Prof. Anish Vora Prof. Anish Vora
Prof. Chirag Pandya
Principal
Prof. (Dr.) H. M. Nimbark
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CONTENT
1. Acknowledgement 3
2. General Information 4
3. Objective 5
4. Assimilation 6
5. Outcome 13
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ACKNOWLEDGEMENT
We express our feeling of gratitude to the Chief Engineer, SSVNL for granting the
permission to visit the River Bed Power House (RBPH) and Canal Head Power House
(CHPH) at Sardar Sarovar Hydro Electric Power Plants.
We are very much thankful to Dr. H.M.Nimbark, Principal, GMIT for allowing and guiding
for the proper execution of the visit. We are also very much thankful to the management of
GMIT for allowing the visit.
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GENERAL INFORMATION
About SSNNL
The Sardar Sarovar Dam and Power Project and the Gujarat Water Delivery and Drainage
Project form part of the Narmada River Development Plan, whose overall objective is to
harness the Narmada River through a series of dams, for irrigation, water supply and
energy. The arrangements for sharing and utilizing water by the four benefiting states
(Madhya Pradesh, Gujarat, Maharashtra and Rajasthan) were defined by the Narmada
Water Disputes Tribunal (NWDT) in December 1979. Under this award, Gujarat was
allocated 11,000 Mm³ representing about one-third of the 75 percent dependable usable
annual water flow, and was authorized to implement a project comprising: (i) the Sardar
Sarovar Dam, (ii) a 1,200 megawatt (MW) riverbed powerhouse (RBPH), (iii) a 250 MW
canal head powerhouse (CHPH), (iv) a canal system to irrigate 1.87 m. ha in Gujarat and
70,000 ha in Rajasthan, and (v) a water supply system for about 30 million people in the
drought-prone areas of Saurashtra and Kachchh. On that basis, Gujarat prepared the Sardar
Sarovar Project in 1980, which was to be implemented in various phases over a period of
about 20 years. Phase I comprised: (i) the Sardar Sarovar Dam, (ii) the RBPH, (iii) the
CHPH, (iv) the first 144 km of the main canal up to the Mahi River, and (v) a network of
branch and distribution canals and drainage system to irrigate about 450,000 ha.
The operation and maintenance of SSP power complex and transmission lines is being done
by Gujarat State Electricity Company Limited (GSECL), for which O&M agreement between
SSNNL and GSECL has been signed.
.
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OBJECTIVE
Industrial visits represent an important activity in any engineering undergraduate program
that contributes to the achievement of various essential learning outcomes and
program objectives. This is achieved through identifying learning outcomes and a
suitable industrial site to achieve them. For this purpose a hydro power plant w as
indentified as a site to be visited by students. The visit was planned for 51 students
of 4th semester to help to achieve the learning outcomes.
The main objective of the industrial visit was to get all the students acquainted with actual
industrial environment and to observe that how power is generated, different controls
required and to understand function of numbers of electrical & mechanical machines and
an interdisciplinary approach.
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ASSIMILATION
Department of Electrical Engineering had organized an industrial visit of Hydro Electric
Power Station, Sardar Sarovar for 4th semester students. 51 students along with 2 faculty
members visited the Hydro power station.
The sardar Sarovar Project is one of the largest resources projects of India covering four
major states – Maharashtra, Madhya Pradesh, Gujarat and Rajasthan. Dam’s spillway
discharging capacity would be third highest in the world.
Hydro Power House
• There are two power houses. River Bed House and Canal Head Power House with an
installed capacity of 1200 MW and 250 MW respectively. The power will be shared
by three states – Madhya Pradesh – 57%, Maharashtra – 27%, and Gujarat – 16%.
This will provide a useful peaking power to western grid of the country which has
very limited hydel power production at present.
River Bed Power House (RBPH)
• The RBPH is an underground power house stationed on the right bank of the river
located about 165 meters downstream of the dam. It has six number of Francis type
reversible turbine generators each of 200 MW installed capacity. The T.G. Sets are
supplied by M/S Sumitomo Corporation, Japan and M/S BHEL. These units can
operate at minimum reservoir water level of 110.64 meters. These six units have
been commissioned in a phase manner during Feb-05 to June-06. The generation of
energy depends upon inflow of water from upstream projects and need of water for
irrigation in Gujarat.
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Canal Head Power House (CHPH)
• The CHPH is a surface power station in a saddle dam on right bank of the reservoir
having total installed capacity of 250 MW (5 x 50 MW). These five units have been
commissioned in a phased manner during Aug-04 to Dec-04. These units can be
operated with minimum reservoir water level of 110.18 meters.
• The CHPH is being operated in consultation and as per advice of NCA/WREB based
on irrigation requirement of Gujarat/Rajasthan and availability of water in reservoir
and release from upstream project of Madhya Pradesh.
Switchyard
• The energy generated from both the power houses is to be evacuated through 400
KV level through interconnecting transformers at GIS, situated in RBPH switch yard.
The 400 KV Switchyard is indoor type having Gas Insulated Switch Gear and Bus
bars. The energy is transmitted to party states i.e. Gujarat, Maharashtra and Madhya
Pradesh in the proportion of 16:27:57 respectively through 400 KV double circuit
transmission lines, namely SSP-Kasor, SSP-Asoj, SSP-Dhule and SSP-Nagda
respectively. All the transmission lines are commissioned and charged.
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Main Futures of CHPH
General 1 Location Right Bank 2 No. of Units 5 3 Rated Capacity of each unit 50 MW 4 Installed Capacity 250 MW 5 Type of Turbine Kaplan (Conventional) 6 Type of Power House Surface
Turbine 1 Rated Speed 136.4 RPM 2 Diameter of Runner 4.7 m 3 Max head race level 138.20 m 4 Min head race level 110.18 m 5 Max tail water level 95.10 m 6 Min tail water level 92.07 m
Generator 1 Rated Output 50.55 MVA 2 Line Voltage 11 +5% KV 3 Power factor (Generating) 0.9 lag 4 Frequency 50 (3%) Hz
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Main Futures of RBPH
General 1 Location Right Bank 2 No. of Units 6 3 Rated Capacity of each unit 200 MW 4 Installed Capacity 1200 MW 5 Type of Turbine Francis (Reversible) 6 Type of Power House Underground
Turbine 1 Rated Speed 136.36 RPM 2 Diameter of Runner 5.7 m 3 Max head race level 136.69 m 4 Min head race level 110.64 m 5 Max tail water level 25.91 m 6 Min tail water level 20.80 m
Generator 1 Rated Output 222.22 MVA 2 Line Voltage 13.8 +10% KV 3 Power factor (Generating) 0.9 lag 4 Power Factor (Motoring) 0.95 lead 5 Frequency 50 (3%) Hz
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OUTCOME
The visit consists of understanding about the hydro electric power plant and power
generation. The students are able to understand
Different major components of hydro power house
Difference in Francis & Kaplan Turbine
Controls, protection and Synchronization
Gas Insulated Substation
Renewable energy source
Peak load and base load power station