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Central electricity authority Annual Report 2009-10 CHAPTER – 8 DESIGN & ENGINEERING SERVICES 8.1 Design & Engineering of Hydro Electric Projects Central Electricity Authority renders design & engineering services for detailed engineering to Hydro Power Projects under execution in the Central/State Sectors and neighbouring countries. Design & Engineering includes complete design, techno-economic analysis, preparation of specifications, tender evaluation, selection and sizing of equipments, detailed layout and schematic drawings for hydro turbine, generator, transformer, switchyard equipment and other auxiliaries. The legacy of CEA in rendering the design and engineering of hydro electric projects is for a period of 50 years since 1960. Seventy five (75) hydro electric projects in India and neighbouring countries having aggregate installed capacity of over 15,757 MW (details given in Annexure-8A) which were completely designed and engineered by this organisation during this period are in successful commercial operation. The design consultancy of hydro electric projects includes projects with conventional hydro generating units, bulb/tubular type units, pumped storage schemes and underground power stations with unit capacity from few KW to 250 MW. CEA is fully equipped to provide state-of-the-art design and engineering services for hydro power projects of any type and capacity. 8.2 Programme and Achievement during 2009-10 During 2009-10, CEA continued consultancy services for design and engineering of electrical and mechanical works of ten (10) hydro electric projects. Out of these, Eight (8) projects are in India and two (2) are in neighbouring countries with aggregate installed capacity of about 3363 MW including large hydro power projects such as Loharinag Pala (4x150 MW), Tapovan Vishnugad (4x130 MW) and Punatsangchu St.I (6x200 MW), Bhutan. The hydro power projects for which design & engineering services were rendered by CEA during 2009-10 are as given below: Hydro Power Stations for which Design & Engineering Services are being rendered by CEA S.No Project State/Executing Agency Capacity (MW) Northern Region 1. Koteshwar Uttarakhand/THDC 4x100 2. Loharinag Pala Uttarakhand /NTPC 4x150 3. Tapovan Vishnugad Uttarakhand /NTPC 4x130 4. Rampur * Himachal Pradesh/SJVNL 6x68.67 North Eastern Region 5. Myntdu Leshka Meghalaya/MeSEB 2x42 6. Myntdu Leshka(Extn.) Meghalaya/MeSEB 1x42 7. Ganol Meghalaya/MeSEB 3x7.5 8. New Umtru * Meghalaya/MeSEB 2x20 “Energy Saved is Energy Generated” 91
Central electricity authority Annual Report 2009-10 S.No Project State/Executing Agency Capacity (MW) Neighbouring Countries 9. Punatsangchu St.I Bhutan/PHPA 6x200 10. Salma * Afghanistan/WAPCOS 3x14 Total 3363 * Review Consultancy Some of the major works completed during the year under consultancy services are as given below:- 2 (Two) technical bids for auxiliary equipments were evaluated and about 7,000 sheets of manufacturers’ drawings were examined for Koteshwar H.E.Project (4x100 MW), Myntdu H.E.Project (2x42 +1x42 MW), Loharinag Pala (4x150 MW), Tapovan Vishnugad H.E.Project (4x130 MW), Salma H.E. Project, (3x14 MW) and New Umtru H.E.Project (2x20 MW). Tenders for Fire Protection System and Ventilation System of Myntdu H.E. Project (2x42 +1x42 MW) were evaluated. Design Memos for 50 (fifty) E&M equipments for Loharinag Pala H.E.Project and Tapovan Vishnugad H.E. Project were examined. 100 Civil construction drawings for Loharinag Pala H.E.Project (4x150 MW), Tapovan Vishnugad H.E.Project (4x130MW), Koteshwar H.E.Project (4x100 MW) and Myntdu H.E.Project (2x42 MW) were examined. During the year, layout drawings of Power House, Switchyard etc. were also finalized for the Loharinag Pala H.E.Project (4x150 MW), Tapovan Vishnugad H.E Project (4x130 MW) and Salma H.E.Project (3x14 MW). Technical Specifications for Power Transformers, 420 kV XLPE Cables and GIS along with 10 drawings were under preparation for Punatsangchu (Stage-I) H.E.Project, Bhutan. During the site visit to New Umtru H. E. Project (2x20 MW), CEA suggested some modifications in the layout of Power House resulting in the deletion of unloading bay and hence reducing the overall height of the Power House thereby reducing the overall cost of the project. 8.3 Scrutiny / Examination of DPRs of new HE Projects The Chapters on Electro-Mechanical Equipment, related drawings and the quantities of 19 DPRs of new HE Projects and associated clarifications/ drawings/documents etc. as received from time to time were examined and commented upon. A list of these HE Projects is as under: S. No. Project State/ Executing Agency Capacity (MW) 1. Jamrani HEP Uttarakhand 3x10 2. Lower Siang Arunachal 9x300 HEP Pradesh 3. Mangdechhu Bhutan 4x180 HEP 4. Nyamjang Arunachal 6x150 Pradesh 5. Dibbon HEP A.P. 2x60 6. Tawang-I Arunachal 3x250 Pradesh 7. Tawang-II Arunachal Pradesh 4x250 8. Demwe Lower HEP Arunachal Pradesh 9. Nafra HEP Arunachal Pradesh 1750 2x48 92 “Electricity is life: Conserve it.”
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thermal power development - Infraline

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