Department of Electrical Engineering. Industrial Visit Report. Sardar Sarovar Narmada Nigam Limited Hydro Electric Power Station

Transcription

1 Department of Electrical Engineering Industrial Visit Report Sardar Sarovar Narmada Nigam Limited Hydro Electric Power Station on 10 th March, 2017 Faculties Accompany: Prof. Anish Vora Prepared by: Prof. Anish Vora Prof. Chirag Pandya Principal Prof. (Dr.) H. M. Nimbark 1

2 CONTENT 1. Acknowledgement 3 2. General Information 4 3. Objective 5 4. Assimilation 6 5. Outcome 13 2

3 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. 3

4 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 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.. 4

5 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 4 th 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. 5

6 ASSIMILATION Department of Electrical Engineering had organized an industrial visit of Hydro Electric Power Station, Sardar Sarovar for 4 th 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 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. 6

7 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 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. 7

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10 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 RPM 2 Diameter of Runner 4.7 m 3 Max head race level m 4 Min head race level m 5 Max tail water level m 6 Min tail water level m Generator 1 Rated Output MVA 2 Line Voltage 11 +5% KV 3 Power factor (Generating) 0.9 lag 4 Frequency 50 (3%) Hz 10

11 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 RPM 2 Diameter of Runner 5.7 m 3 Max head race level m 4 Min head race level m 5 Max tail water level m 6 Min tail water level m Generator 1 Rated Output MVA 2 Line Voltage % KV 3 Power factor (Generating) 0.9 lag 4 Power Factor (Motoring) 0.95 lead 5 Frequency 50 (3%) Hz 11

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13 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 13