TNEB Limited Tender Results

MTPS I BM Unit III Boiler pressure parts AOH 2026 Disposal of Ash from Pent house Eco hopper deflection slope rear arch room boiler roof area strengthening of Eco hopper supports with new pipes and arresting of ash leakage in pent house and allied

MTPS I BM AOH 2026 Unit III Boiler pressure parts Cutting removing of heavily worn out CRH and HRH tubes roof plate and fabrication and erection of new Corten steel sheet and allied works in the penthouse area at 52 mtr level

BM Division Unit II Boiler 600 MW Removal and Renewal of damaged Boiler roof sheet 100mtr EL in boiler Front side near LHS MS safety valve area Rear side near Boiler II pass LHS area including supply of Galvalume roof sheet

Boiler Maintenance Division Unit II 600MW Boiler Annual overhaul of Air Pre Heater 2B pass and its lube oil system and rectification of corroded, eroded and damaged inlet outlet ducts expansion joints of Air pre heater- 2B pass

BM Division UnitII 600MW Overhauling of Boiler Main Steam Stop valve1 2 MSSV1 2 E2 valve during the year 2026-27

Short Tender for Execution of extension Improvement DCW and various works in North Valapady Sub Division in respect of Valapady Division

Supply ,Fabrication and erection of new steel structure and Dismantling,Erection of old defective 230KV 1.25 KA AB Switch (WOE)by new Switch in 230 KV 2KA Switch Myvadi- Ponnapuram-I feeder Bus-I at 230 KV Switching Station Myvadi

NCTPS I SE MI Circle AOH COH 26 27 TM Dn Unit I II III Hydraulic Test of HPH LPH tubes and Inspection and identification of tube puncture in nest plugging the punctured tube and welding and Renewal of gaskets in water end manhole door and inte

NCTPS I SE MI Circle AOH COH 26 27 TM Dn Unit I II III Overhauling and Pressure Testing of various Types of Safety Relief valves in High Pressure Low Pressure Heaters Deaerators Auxiliary Steam supply lines of Deaerators and High pressure Feed Wat

NCTPS I SE MI Circle AOH 26 27 MPM Dn Attending overhauling works on cooling tower at centralized AC plant during any shutdown Overhaul for the year 2026 27

Supply ,Fabrication and erection of new steel structure and Dismantling,Erection of old defective 230KV 1.25 KA AB Switch (WOE)by new Switch in 230 KV 2KA Myvadi- Ponnapuram-I feeder Bus-II at 230 KV Switching Station Myvadi

NCTPS I SE MI Circle AOH 26 27 BM Dn Unit I ESP Renewal of eroded and damaged Primary Secondary GD screen sheets during annual overhaul for the year 2026 27

NCTPS I SE MI Circle AOH 26 27 BM Dn Unit I Overhauling of HP LP valves in PRDS WWSB safety valves and renewal rectification of HP LP valves steam lines drain lines in PRDS station and its connecting drain lines to IBD tank

Operation and Maintenance of Ash Handling System excluding the ash water recovery system for a period of One year from the date of handing over of site

Supply ,Fabrication and erection of new steel structure and Dismantling,Erection of old defective 230KV 1.25 KA AB Switch (WOE)by new Switch in 230 KV 2KA in Bus coupler Bus-I at 230 KV Switching Station Myvadi

Handing of Materials at Central Stores / GCC-II/Sriperumbudur

MTPS I TM I Unit III Replacement of TG Bearing 1 2 3 dismantling reassembling of TG Bearings 4 to 7 for inspection to rectify the bearing vibration and renewal of oil guard rings in bearing No 1 2 and replacement of worn-out sealing ring in IPT front

MTPS I BM Unit I Boiler Pressure parts AOH 2026 54 mtr Elevation Cutting and removal of heavily wornout top roof sheet of penthouse and patch work on the eroded portion of top roof sheet with new decking sheet and allied works

MTPS I TM-I Unit III Annual Maintenance work in Main Turbine and its Auxiliaries and Overhauling of Pennwalt Centrifuges 3A and 3B during 2026 27

MTPS I TM UNIT III Replacing the defective eroded drip line reducers expanders changing the defective eroded plug broken 1 2 drain line vent line valves pipes bends by IBR Non IBR welding Transporting the variable load hanger assemblies etc

MTPS 1 TM Stage II Unit III IV Load testing of 2 ton capacity EOT crane movable 1 ton chain block trolleys and 1 TON Capacity Electrical Hoists in pumps Compressor and LP Bypass valves area for the year 2026 2027

NCTPS I SE M II Circle AHP Dn Renewal of corroded and damaged supporting steel structural for ash water header line for Unit II BAH during unit is in service

MTPS I TM Unit III Air Compressor System Cleaning painting renewal of Manhole door gaskets and Overhauling of Safety valves of Receiver Tanks of 1 and 2 of Instrument Air System service air system and overhauling of Refrigerant Dryer etc

MTPS I TM Unit III Cleaning and Hydraulic Testing of Lub oil Coolers and Working oil coolers Dismantling cleaning and assembling of Suction Strainers of BFPs and CEPs Renewal of BFP leak off line and suction discharge flange Gaskets Inspection etc

MTPS I TM Unit III Overhauling of TLOCBPs H2CBPs Hydrazine Dozing Pumps Phosphate Dozing Pumps and Heater drip Pumps during AOH of 2026 27

MTPS I TM Unit III Overhauling of OLCTC System Pump LHS and RHS Inspection and cleaning of Condenser CW box steam side Hot well and OLCTC System Ball collecting screen Overhauling of 200 mm condenser air release cum vacuum breaking valve etc

MTPS I TM Unit III Overhauling and Flange gasket renewing of valves in Heater Drain Pegging Steam to Deaerator Condenser air Auxiliary steam and Drain Water lines and gasket renewing of valves in Unit III during AOH 2026-27

MTPS I TM Unit III Renewal of piston seals and piston rod packings in HP LP Bypass valves and its spray valves actuators including servicing of oil filters during the AOH of 2026 27

MTPS I TM Unit III Carrying out Bullet cleaning by specially designed Phosphor Bronze Bullet shot of LHS and RHS of condenser tubes in condenser during AOH of 2026 27

BM Division - 600 MW - Unit II - Renewal of eroded and damaged guide vane and duct support tie rods at APH-A B pass flue gas inlet duct 37 mtr elevation and damaged scanner air pipe line 23 mtr elevation during AOH period of 2026-27

NCTPS II MI Circle BM -600MW UnitII Boiler Rectification of defective tubes in interpass area and second pass area of RH rear, Extended side Water wall, LTSH, ECO, back pass screen tubes, etc., during AOH of 2026-27

MTPS I TM UNIT III Complete Overhauling of HP Bypass and LP Bypass Spray Valves and Oil Supply Unit during AOH 2026 2027

BM Division - Unit II 600MW Boiler - Providing cup lock metallic scaffolding arrangements inside the Boiler furnace from 11 Mtr S-panel area) to 54 Mtr EL (Elephant door - 9th floor level and Cleaning of Boiler I pass heating surface tubes

BM Division Unit-II Boiler Annual Overhauling of Water Wall Soot Blowers and Long retractable soot blower during 2026-27

NCTPSII MI Circle BM UnitII 600 MW Overhauling of Coal oil burner assemblies and burner tilting mechanism in corner2 during the year

BM 600MW Unit II Boiler Rectification of defective steam supply line tubes and its drain line tubes of Water Wall Soot Blowers WWSB and Long Retractable Soot Blowers LRSB with new tube during AOH period of 2026-27

NCTPS II M I circle BM Division Unit II Removal and Relaying of Insulation in Boiler pressure parts, burner, valves, Pent house, Air preheater ducts during the AOH period

NCTPS II MI Circle BM UnitII 600 MW Overhauling of Coal oil burner assemblies and burner tilting mechanism in corner1 during the year 2026-27

BM Division - Unit II - 600MW Boiler - Supply and Installation of Air sealants in Dock house damaged area to avoid heavy hot ash leakage and air ingression into the Boiler during Annual overhaul 2026-27

NCTPS-II - M-I Circle CAD -NCTPS-II - M-I Circle - CAD - Dismantling of CWP motor, Inspection, Removal of coolers, cleaning of coolers, on-site balancing of fan blades, and checking of motor shaft float reassembling commissioning in CWPH during AOH

Boiler Maintenance Division Unit II Boiler Annual overhaul of Gates Dampers of Primary air, Secondary air and Flue gas ducts during 2026 -2027

NCTPS II MI Circle - BM Dn.- Unit-II - ESP A,B,C, D Passes Inspection of rectification of eroded,Punctured ESP EERM Floor casing plates and field internals in ESP during the Annual overhaul 2026-27

NCTPS II M-I Circle- BM Unit-II Annual overhaul of Replacement of severely corroded and damaged discharge ducts of PA fans and FD fans during the year 2026-27

NCTPS-II - M-I Circle- BM Unit-II AOH of FD Fan 2A 2B for the year 2026-27

NCTPS-II - M I Circle BM Unit-II Annual overhaul of PA Fan 2A 2B during the year 2026-27

NCTPS II MI Circle - BM Unit-II - Renewal of damaged top suction hood area of PA Fan 2A 2B during the year 2026-27

NCTPS II MI Circle BM-III - Unit-II - Annual overhaul of ID fan 2A 2B during the year 2026-27

NCTPS II MI Circle BM Division 600 MW Boiler UnitII Annual Overhauling of HP LP valves in Boiler and APRDS, Soot Blowing, Atomizing steam and SCAPH system., and renewal of Punctured damaged drain line pipes and bends during AOH

NCTPS-II-M-I Circle-CA-CWPH- Unit-II-Inspection of internals, attending defects by dismantling the CWP 2D internal parts, rectifying and replacing the damaged parts with new or re-conditioned spares during AOH for the year 2026-27

Overhauling of Travelling water screen 2B and renewal replacement of defective parts with new or reconditioned spares after minor rectification, if necessary and thorough cleaning of stop log gate guide and seating area in the Fore bay chamber 2B