|
| 1 | Turbine & Associated ComponentsRunner including Buckets Replacement of old and Supply and Installation of new speed sensors along with connecting cables compatible with existing associated components and other allied works |
| 2 | Runner Housing, Turbine chamber and Shield PlateRefurbishment of runner housing including sand blasting and Epoxy painting inclusive of all material and allied works |
| 3 | Replacement of old and Supply and Installation of new of existing MS Shield Plate and nut bolts with new one of SS material and application of High Velocity Oxygen Fuel (HVOF) Coating. |
| 4 | Replacement of old damaged seals and Supply and Installation of new seals and packing with new rubberized cork sheets and welding wherever required. |
| 5 | Replacement of old and Supply and Installation of new nut bolts Note: During refurbishment /repair/ replacement, Utmost care shall be taken for civil associated structures and same be repaired in well manner accordingly wherever required |
| 6 | Drive End (DE) BearingReplacement of existing bearings with new one and other allied works including supply, Installation, alignment, rechecking of shafts and insitu minor repairs to shaft (if reqd after removal of bearings). |
| 7 | Brake Jet SystemReplacement of old and Supply / Installation of new of complete braking system and its integration with the existing OPU system including all piping works, auxiliaries, other allied associated works and integration with the digital governor system.The nozzle for brake jet is to be replaced.The hydraulic valve utilized for turning the water jet on/offshall be replaced along with the Supply installation testing and commissioning of new hydraulic pipeline from the new OPU.ii. The SITC of complete braking system and its integration with the existing OPU system & integrated with the digital governor system and same be taken up before restoration of the machines.iii. Restoration of brake jet system be interfaced and integrated with Governor for all 4 units.iv. Supply of other auxiliaries like piping and other details of braking system shall be compatible with the systemv. Replacement of damaged brake jet system with new one, compatible with the existing system |
| 8 | In addition to above, at least 1 no. sets be kept as spare to tackle any eventuality in future. |
| 9 | Nozzle Seat Ring, Needle Tip (Bottom & Upper side) and Deflectors To enhance the life of nozzle seat ring, it is recommended to replace all the parts of brass material of this equipment and consider using stainless steel material, specificallyASTM A240 UNS 41500 with HP- HVOF coating instead of brass. Additionally, applying HP-HVOF coating to the needle tip is recommended for improved durability and erosion resistance.Replacement of Existing 2 (two ) Nos. Nozzles, Seat rings 2 no's and Deflectors 2no's in each machine with supply and installation of new one of SS material specifically ASTM A240 UNS 41500 and HVOF coating thereof. Setting Alignment and other allied works |
| 10 | Overhauling of existing 2 nos Nozzle servo motors and Deflectors Servomotor including replacement of all the seals, gaskets, transducers/ Sensors with compatible cabling works.Replacement of 2 No deflector servomotor transducer for each machine.Replacement of 2 No nozzle servomotor transducer for each machine.Setting, Alignment & other allied works be checked again before restoration of the units.Buckets:• Sandblasting, primer coating, and finishing with an epoxy paint be carried out on entireinstallation for the effective refurbishment and long-term protection.• Proper surface preparation is ensured before coating performance |
| 11 | Cooling water System:Dismantling of existing Cooling water system.Design, supply installation testing and commissioning of 1W+1S CW scheme (mechanical seal type) with dual inline filters and separators with back flushing including other allied piping, Electrical works. Pumps must operate in automatic mode with alternating operation logic to ensure redundancy.Provide discharge piping for silt flushing and proper drainage system connection.Non-Return Valves (NRV)-8 No (To prevent backflow in pipelines).Isolation Valves (Butterfly/Gate) for maintenance and flow control |
| 12 | Main Inlet Valve (MIV) & Bypass ValveOver hauling of MIV Spherical Valve & By pass valve including all the seals, bushes and necessary accessories along with piping Compatible with the existing system and interfacing with the digital governor panel |
| 13 | Replacement of old & SITC of New MIV & By pass valve - OPU along with piping etc compatible with existing system and interfacing with governor panels |
| 14 | Replacement of Old & SITC of new MIV servomotor, bypass mechanism, gate valve, seals,bushes, Transducers and other allied works. |
| 15 | Digital Governor panels and OPUSupply and installation of heat exchanger system (complete) for governor OPU along with allied piping work. |
| 16 | Up gradation of Digital Governor by way of retrofitting the obsolete existing governor PLC, AI, AO, DI, DO with new compatible modules( including supply, installation, testing and commissioning), (HIPASE/SICAM/HyCon) based control systems that should be compatible with existing system, including all allied works such as system integration, wiring modifications, software configuration, testing & commissioning and replacement of defective components like relays, annunciator display LEDs and other associated accessories. |
| 17 | Complete overhauling of Governor OPU by way of replacing all the proportional valves, check valves, Filters, solenoid valves, gauges, regulating valves, manifolds, transducers, piping, seals, gaskets etc. The job also includes overhauling of Governor pumps and other allied works. |
| 18 | Complete overhauling of piston accumulator and nitrogen filling thereof. After complete overhauling of OPU assessment of temperature rise shall be governed. |
| 19 | Generator & AuxiliariesGenerators- StatorDismantling of Generator covers. Cleaning with solvent and drying out, Varnishing, Drying Out, baking of Generator stator windings and other allied associated till desired values of IR &PI are achieved |
| 20 | Replacement of Old damaged seals and packings with new rubberized cork sheets, welding/ brazing wherever required. |
| 21 | Replacement of Old & Supply and Installation of all nut’s bolts and pins with new ones. |
| 22 | Replacement of old and Supply and Installation of RTD’s, Generator heaters including compatible cabling and other allied associated works. |
| 23 | Supply and Installation of instrument transformers CTs & PTs. |
| 24 | Complete Overhauling of Neutral Grounding system including replacement of grounding copper links |
| 25 | Generator Rotor for M/C Unit-1 to Unit-4Repair to slip rings. Alignment of machine. Measure the voltage drop across each pole to ensure they are within 5% of each other, confirming balanced electrical characteristics.Perform check of the journal surfaces and check for rotor bowing or distortion,particularly if any welding was performed |
| 26 | Supply of spare Carbon brushes for the machine unit 1 to 4. |
| 27 | Generator Air coolersDismantling of existing air coolers, cleaning/ decalcination with chemicals and high pressure water jets, replacement of damaged seals and packing with new rubberized cork sheets, welding/ brazing wherever required |
| 28 | Supply of high-pressure pumps along with accessories for cleaning of generator air coolers. |
| 29 | NDE BearingsDismantling of old Bearings and cleaning of bearing housings. Supply, installation, testing and commissioning of new bearings including alignment and other allied works like replacement of RTD's etc |
| 30 | CO2 BankOverhauling and restoration of fire extinguishing system and its refilling thereof along with integration with all the 05 machines and other allied works. |
| 31 | Excitation SystemDismantling of Dry type Excitation Transformers, Replacement of existing 100 KVA Excitation transformers with new ones of compatible size, Shop testing, Erection at Site, Testing and Commissioning ensuring compatibility with with the Existing panels /cubicals and other associated parts of the Power house.Cleaning & drying of Excitation Transformer foundation and surrounding area and to be repaired by epoxy mortar to provide a smooth concrete surface wherever required. |
| 32 | Replacement of old damaged cable 3 core Arm cable from excitation transformer to Excitation panel including supply, installation, testing and commissioning |
| 33 | Up gradation of Excitation system panels by way of installing new Excitation system Hot standby (1w+1s) including it's integration with other system for smooth Excitation, synchronizing, operation and functioning of machines. Effective cooling and ventilation system may be considered to avoid heating up of panels. Shop testing, Erection at Site, Testing and Commissioning ensuring compatibility with the Existing panels/cubicals and other associated parts of the Power house.Note: After replacing old excitation transformers and installing new ones, a comprehensive, multi-stage, general check and testing procedure is required to ensure safety and performance. This involves visual inspection, mechanical checks, and electrical testing to verify insulation, winding integrity, and protective device functionality as per BIS /IEEE and must be compatible with the existing associated components of the plant |
| 34 | Automation and Protection SystemProtection & Control Relay Panels of GT Transformers, Generators etcDismantling of old panels, extraction of functional MICOM relays, energy meters etc. Supply and installation of new complete Protection and Control relay panels for GT Transformers, Generators, Excluding MICOM relays, VAMP-300 and energy meters (Existing functional extracted items to be re-used), retrofitting the same along with associated cabling works and integration thereof. |
| 35 | Synchronizing & operators control deskUp-gradation of existing control desk and auto synchronizing panel for all the 05 machines including Replacement of non-functional HMI’s and their integration with the protection system, control system, digital Governor system and other allied works. Work station for control room with printer & Operator office desk for control room |
| 36 | Oil Lubrication System (OLS)Dismantling and Supply and Installation of old lubrication system with new ones including its integration and other allied works.Dismantling and replacement of old oil re-coolers and Supply and Installation of new compatible oil re-coolers including allied piping works |
| 37 | LTAC PANELS (all unit auxiliary+ common system)Dismantling of all old LT AC panels of unit auxiliary and common system. |
| 38 | Replacement of old & Supply and Installation of new Unit auxiliary LTAC panels for cooling water system, oil lubrication system, Spherical valves OPU, Governor OPU, Generator heaters etc with floor insulation mats and their integration & cabling thereofNote: The new installed panels shall be compatible with the new/upgraded associated system |
| 39 | Supply and Installation of new Common Accessories LTAC panels for EOT, D&D system, workshop, air compressor, lighting, DC battery chargers etc with floor insulation mats and their integration & cabling thereof |
| 40 | 6.6 kV HT Circuit breaker, measuring Panels & HT busDismantling of all old HT Breaker panels, measuring panels and HT bus cubicle. |
| 41 | Replacement of old & Supply and Installation of new compatible 6.6 kv HT breaker panels with compatible VCB's (main transformer 1, main Transformer-II, Aux Transformer, bus coupler, Generators unit 1-5, CHEP-II line breaker, measuring panels for two buses and HT bus cubicles with floor insulation mats including CT's & PT's along with allied wiring and integration works |
| 42 | Supply of 01 no HT PPE kit. |
| 43 | Air Compressor SystemDismantling of existing air compressor system along with the piping works.Supply and Installation of new compatible air compressor 1w+1s along with allied piping and other associated works |
| 44 | Strengthening of power house Earthing system to improve the earth resistivity. |
| 45 | Supply and Installation of complete CCTV Systems with 20 no Cameras in power house and adjoining areas with 02 monitors 40 inch ; 1 in control room and 1 in JKP Security room. |
| 46 | EOT CraneDismantling of damaged existing power cable 3-phase 4 core ar cu cable & Supply and Installation of damaged power cable with new one (qty-60m) and other allied works. Overhauling of EOT overhead DSL system. Maintenance of EOT crane by way of greasing, cleaning and other allied works. |
| 47 | PART-B: Switch Yard And Auxiliaries WorksSwitch Yard And AuxiliariesGenerator Transformers no 2 to 6Disconnection of transformers, bushings, and other allied equipments. |
| 48 | Drainage of transformer oil, Cleaning of oil tank, Vacuuming, bushings, temp alarm system and other allied equipments including Supply and Installation of Silica gel, checking and repair of bucholz relays and damaged post insulators of all the transformers LV side bus insulators (11 no’s)Filling of oil, plugging of oil leakages by way of replacement of damaged seals and packings with new rubberized cork sheets, welding/ brazing wherever required |
| 49 | Filtration of Transformer oil till required BDV and other parameters are achieved. The firm shall have to arrange the oil filtration machines on its own for the same. |
| 50 | Improvement to switch yard earthing system |
| 51 | Testing & commissioning of all the Maintained transformers for IR & PI and BDV values followed by painting and commissioning Filling of oil.IR & PI measurement after completion of abovementioned works.Post R&M works Testing Commissioning of transformersLA SITC & SITC OF Surge countersCivil Foundation repair & maintenance |
| 52 | Dismantling/ shifting of old Sub-station transformer and SITC of New 200 KVA 6.6kV/415 Transformer Sub-station transformers |
| 53 | Replacement of old & Supply and Installation of new LA's 06 no’s along with required support structure on HV side of the Transformers and 03 no’s LA on line bay of 132KV line, along with required support structure including surge counters and allied works. Replacement of old & Supply and Installation of new dual core CTs (qty-9), PTs (qty-3), 132kV line LAs and Surge Counters including allied works including replacement of damaged Post top insulators (qty-6), string insulators discs (qty- 10 discs ), control cables along with existing equipment of switch yard. IR & PI measurement after completion of abovementioned works followed by testing and commissioning |
| 54 | Routine Maintenance /Overhauling of switch yard 132kV SF6 Circuit Breakers 03 no's. Drainage of oilCleaning of oil tanks, bushings and other allied works. Filtration of oil till required BDV and other parameters are achievedChecking, cleaning and tightening of connectionsFilling of oil.Plugging oil leakages by way of replacement of damaged seals and packings with new rubberized cork sheets, welding/ brazing wherever required. IR & PI measurement after completion of abovementioned works.Testing and commissioning of Instrument Transformers.Replacement of damaged control cables.Supply and Installation of 01 no new 132kV SF6 Circuit Breaker along with other allied associated works. |
| 55 | Line Isolators and Earth Switches (Qty-04)Disconnection of connections, Dismantling of Isolators and Earth Switches operating Mechanism .Cleaning , Repair and alignment of the isolators and earth switches including Greasing of all the contacts and cleaning of insulators.Commissioning of the existing operating mechanism of the Isolators including cabeling works .Checking and Replacement of damaged bus insulators, string insulators , connectors and other line accessories.Measurement of earth resistivity |
| 56 | Installation of new field instruments like pressure switches, feedback transducers, speed sensors, proximity switches etc Please Enable Macros to View BoQ information |
