Tamil Nadu Generation And Distribution Corporation Limited Tender

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Tamil Nadu Generation And Distribution Corporation Limited - TANGEDCO Tender

Works
Electrical Goods and Equipments
Machinery and Tools
Electrical and Electronics
Eprocure
Opening Date28 Feb 2024
Closing Date26 Apr 2024
Tender Amount₹ 14,29,530 
This is an estimated amount, exact amount may vary.
Notes
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Costs

Description

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Documents
MTPS I BM Unit I Annual maintenance 2024 25 A and B stream Boiler PA fans FD Fans ID Fans and its isolation dampers and APH gear box
MTPS I BM Unit I Annual maintenance 2024 25 A and B stream Boiler PA fans FD Fans ID Fans and its isolation dampers and APH gear box
MTPS I BM Unit I Annual maintenance 2024 25 A and B stream Boiler PA fans FD Fans ID Fans and its isolation dampers and APH gear box
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BOQ Items

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Charges for De-coupling / Coupling and of PA Fan motor with fan

4

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Complete overhaul and checking of FD fan bearings, (both inner and outer) impeller housing shafts, taking readings on coupling alignment. Impeller clearance and checking housing verticality on bearings, removal of corroded/worn out drive lever arrangement, suspension bush, etc. and renew the same as instructed by Engineer in charge in Unit.

2

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Overhauling of SAD 3 gear drive damper cleaning air duct up to air pre heaters and attending minor repair works on duct and expansion joints and dampers etc.

2

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Charges for De-coupling / Coupling and of FD Fan motor with fan

4

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Complete overhaul of ID fans which includes cleaning checking & couplings on both sides of voith coupling, checking of fan bearings, impellers, impeller casing and shaft seals, taking readings on impellers clearance, impeller thickness, coupling alignment readings.

2

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Opening of voith coupling oil tank cover, drain the working oil, cleaning and checking the internals and closing the cover and renewal of working oil including cleaning the oil filters.

2

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Charges for cutting and inspection hole in ID fan impeller conical cover plates at both sides by gas cutting and removing of fly ash deposited inside inspection of inner side and welding the same.

2

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Charges for De-coupling /Coupling of ID fan motor with voith coupling (Primary side).

4

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Charges for De-coupling /Coupling of ID fan motor with voith coupling (Secondary side).

4

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Alignment of motor with PA Fan/FD Fan/ID Fan/ voith coupling

8

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a)Removal of auxiliaries connected with speed reducer of APH such as AC motor fluid coupling over running clutch bibby coupling and air motor assembly, including removal of gear box from its bed and lowering to the floor for carrying out overhaul works

2

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b) Complete overhaul of speed reducer gear box, of APH including changing the damaged helical pinion shaft, gear and bearing if necessary and assembling the same after completion of overhaul.

2

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c) Overhaul of air motor, over running clutch, Bibby coupling and connected air lines, valves etc. including changing the damaged filters valves if necessary etc.

2

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d) Refitting of speed reducer gear box in the bed and refitting the auxiliaries connected with speed reducer such as AC motor, fluid coupling over running clutch, bibby coupling and air motor and airline assembly etc.

2

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e) Alignment of APH drive motor with speed reducer through fluid coupling

2

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f) Checking pin rack gap between rotor and drive units and adjusted to the required clearance

2

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g) Arresting air leakage in and around the pinion air seal assembly , air seal assembly cover and patch up , filling weld metal on the eroded portion of the pinion air seal , replacing the carbon ring with tension spring

2

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h) Renewal of runner half coupling of both fluid coupling and speed reducer

2

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i)Over hauling of fluid coupling Unit and assembling the same

2

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Charges for transporting of 6mm M.S./ Checkered plates from Central Stores/MTPS to Boiler area, cutting into required size, leading, lifting, positioning on the eroded portions of the duct below 1.5 meters and welding the same .

5

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Overhaul of FD fan IGV includes dismantling of all link rods, cleaning & greasing, dismantling of all guide rollers, cleaning & greasing, Checking and renewal of bearings if required and assembling of IGV and Calibration of IGV for perfect closing / opening.

2

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Labour charges for hydraulic testing of the released working PA fan/APH lub oil cooler a)Labour charged for dismantling and cleaning

8

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b)Labour charges for assembling

8

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c)Labour charges for hydraulic testing of the released working oil cooler @ 15 Kg/Cm2 pressure for 30 minutes

8

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Hydraulic testing of ID fan lub oil cooler for ID fan a)Labour charges for dismantling and cleaning

4

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b)Labour charges for assembling

4

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c) Labour charges for hydraulic testing of the released working oil cooler @ 15 Kg/Cm2 pressure for 30 minutes

4

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Cutting gas

1.5

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Welding Rod

7

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Materials & Consumable T&Ps Charges for Sl.No. 1 to 30

1

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