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| # | Company | Amount | Rank | Status |
|---|---|---|---|---|
| 1 | L1₹1.8 CrAdmitted-Finance 150 VILLARASAMPATTI NAAL ROAD NASIYANUR ROAD VILLARASAMPATTI POST ERODE 638 107 | ERODE | TAMIL NADU | 638107 | ₹1.8 Cr | L1 | Admitted-Finance |
| 2 | Not Admitted-Fee/PreQual/Technical K 4 FIVE STAR INDUSTRIAL AREA MIDC BUTIBORI NAGPUR 441 122 | NAGPUR | NAGPUR | MAHARASHTRA | 441122 | - | - | Not Admitted-Fee/PreQual/Technical Others-TECHNICAL AND COMMERCIAL TERMS NOT ACCEPTED |
| 3 | Not Admitted-Fee/PreQual/Technical 12 A PEENYA INDUSTRIAL AREA BANGALORE 560 058 KARNATAKA INDIA | BANGALORE | BENGALURU URBAN | KARNATAKA | 560058 | - | - | Not Admitted-Fee/PreQual/Technical Others-BQR NOT SATISFIED |
| Sl No | Description | Qty | Unit | Coral rewinding India Private Limited L1 |
|---|---|---|---|---|
| 1.00 | Dismantling of Generator.
1. Open bearing pedestal cover front and rear bearing of Generator, bearing top halfs.
2. Check bearing clearances, interferences, CRO, decoupled LP Generator, check alignment.
3. Dismantled Hydrogen seals, seal body, end shield, inner oil catchers.
4. Prepare and thread out Generator Rotor.
5. Clean the Stator and visual inspection.
6. Identification of faulty bar. | 1 | SET | 24,50,000 ₹28,91,004.72 Lowest |
| 2.00 | Partial rewinding of Generator Stator ( Replacement of One defective top bar)
1. De-wedging.
2. Cutting overhang braiding and opening of insulations covers.
3. Desoldring the bar joints.
4. Removing top bars covering up to 3 adjacent bars.
5. Laying of top bar.
6. Re-wedging and wedge tightness check.
7. Soldering of the bar joint.
8. Assembly of insulation covers and braiding of overhang winding.
9. IR, PI and Resistance check on Stator winding and HV test / ELCID test on stator.
10. Epoxy glue injection.
11. Varnishing of stator | 1 | No | 27,40,000 ₹32,33,204.72 Lowest |
| 3.00 | Partial rewinding of generator stator (Replacement of One defective bottom bar)
1. De-wedging.
2. Cutting overhang braiding and opening of insulations covers.
3. De-soldering the bar joints.
4. Removing top bars covering up to 1 pitch coil (app) for facilitating removal of 3 adjacent bottom bar.
5. Removal of defective bottom bar upto 3 Nos. adjacent.
6. Braiding of bottom bars overhang.
7. Laying of top bar.
8. Re-wedging and wedge tightness check.
9. Soldring of the bar joint.
10. Assembly of insulation covers and braiding of overhang winding.
11. IR, PI and Resistance check on Stator winding and HV test / ELCID test on stator.
12. Epoxy glue injection.
13. Varnishing of stator. | 1 | No | 44,25,000 ₹52,21,504.72 Lowest |
| 4.00 | Re-assembly of Generator:
1. Revisioning bearings (including DP & UT), seal rings, seal bodies, oil catchers, end shields etc.
2. Prepare and thread in of rotor.
3. Assembly of end shields, seal bodies, seals and oil catchers etc.
4. LP-Generator alignment correction coupling, CRO check etc.
5. Assembly of bearings pedestal No.6 and 7 and brush gear etc.
6. Air tightness test of generator complete assembly & rectification.
7. Assistance in commissioning.
8. Assembly of flexible leads. | 1 | SET | 27,00,000 ₹31,86,004.72 Lowest |
| 5.00 | Electrical Statutory Testing the following test shall be carried out by the contractor with latest testing techniques and equipment’s
1. Tan Delta test of stator winding.
2. Partial discharge test of stator winding.
3. Hydraulic test of stator winding.
4. Digital wedge mapping test of stator winding (Before and After) shall be carried out as per latest testing technic to ensure tightness of all
the wedges.
5. IR and DC resistance of rotor winding.
6. RSO test of rotor winding.
7. Conducting purge test of rotor.
8. Gas tightness test of rotor.
Note: The testing equipment’s are under the scope of the contractor. | 1 | SET | 20,00,000 ₹23,60,004.72 Lowest |
| 6.00 | Supply of Consumables and Chemicals needed for the above work. | 1 | SET | 10,00,000 ₹11,80,004.72 Lowest |
Tender Value
Refer Docs
EMD Value
₹1.5 L
Closing Date
10 Nov 2022, 2:30 pmClosed
CE MTPS I
CE MTPS I METTUR DAM
Unit III ONSITE Rectification of MS BHEL make 210 MW LMW Turbo Generator Stator winding fault.
2022_EB_261311_1
CE MTPSI SE PA EE SI AEE4 OT No 66 2022 23
Open Tender
Electrical Works
Works
25 days
Mettur dam
As per specification
4 documents required · 4 mandatory
₹0
₹1.5 L
Yes
office of SE PA MTPS I
16 Nov 2022
5 Nov 2022
11 Nov 2022
5 Nov 2022
10 Nov 2022
5 Nov 2022
8 Nov 2022
Dismantling of Generator. 1. Open bearing pedestal cover front and rear bearing of Generator, bearing top halfs. 2. Check bearing clearances, interferences, CRO, decoupled LP Generator, check alignment. 3. Dismantled Hydrogen seals, seal body, end shield, inner oil catchers. 4. Prepare and thread out Generator Rotor. 5. Clean the Stator and visual inspection. 6. Identification of faulty bar.
Partial rewinding of Generator Stator ( Replacement of One defective top bar) 1. De-wedging. 2. Cutting overhang braiding and opening of insulations covers. 3. Desoldring the bar joints. 4. Removing top bars covering up to 3 adjacent bars. 5. Laying of top bar. 6. Re-wedging and wedge tightness check. 7. Soldering of the bar joint. 8. Assembly of insulation covers and braiding of overhang winding. 9. IR, PI and Resistance check on Stator winding and HV test / ELCID test on stator. 10. Epoxy glue injection. 11. Varnishing of stator
Partial rewinding of generator stator (Replacement of One defective bottom bar) 1. De-wedging. 2. Cutting overhang braiding and opening of insulations covers. 3. De-soldering the bar joints. 4. Removing top bars covering up to 1 pitch coil (app) for facilitating removal of 3 adjacent bottom bar. 5. Removal of defective bottom bar upto 3 Nos. adjacent. 6. Braiding of bottom bars overhang. 7. Laying of top bar. 8. Re-wedging and wedge tightness check. 9. Soldring of the bar joint. 10. Assembly of insulation covers and braiding of overhang winding. 11. IR, PI and Resistance check on Stator winding and HV test / ELCID test on stator. 12. Epoxy glue injection. 13. Varnishing of stator.
Re-assembly of Generator: 1. Revisioning bearings (including DP & UT), seal rings, seal bodies, oil catchers, end shields etc. 2. Prepare and thread in of rotor. 3. Assembly of end shields, seal bodies, seals and oil catchers etc. 4. LP-Generator alignment correction coupling, CRO check etc. 5. Assembly of bearings pedestal No.6 and 7 and brush gear etc. 6. Air tightness test of generator complete assembly & rectification. 7. Assistance in commissioning. 8. Assembly of flexible leads.
Electrical Statutory Testing the following test shall be carried out by the contractor with latest testing techniques and equipment’s 1. Tan Delta test of stator winding. 2. Partial discharge test of stator winding. 3. Hydraulic test of stator winding. 4. Digital wedge mapping test of stator winding (Before and After) shall be carried out as per latest testing technic to ensure tightness of all the wedges. 5. IR and DC resistance of rotor winding. 6. RSO test of rotor winding. 7. Conducting purge test of rotor. 8. Gas tightness test of rotor. Note: The testing equipment’s are under the scope of the contractor.
Supply of Consumables and Chemicals needed for the above work.
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