Tender For Name Of Work:Pedc-Pudukkottai-Running Contract For Repairing/ Overhauling Of Power Transformers Of Pudukkottai Edc For A Period Of One Year.
Tender Value
Ref. Documents
Estimated cost
Bid Submission
15 Jul 2026
8 days left
EMD
20000
Bank guarantee accepted
Document Fee
Ref. Documents
Non-refundable
Tender Type
Online
Tender Overview
Organization
Tender ID
Competition Type
NCB
Bidding Type
Tender
Location / State
Pudukkottai → Tamil Nadu
EMD Exemption
Available
Quantity
Not Available
Website
Contact Person
Address
Project Description
Tender for Name Of Work:Pedc-Pudukkottai-Running Contract For Repairing/ Overhauling Of Power Transformers Of Pudukkottai Edc For A Period Of One Year.
Corrigendum
| Sr No | Corrigendum Date | Corrigendum | Type | New Submission Date |
|---|---|---|---|---|
| 1 | 20-Jun-2026 | Tender Opening Date Postponed due to some administrative reasons | Date | 04-Jul-2026 |
| 2 | 04-Jun-2026 | Tender Opening Date Postponed | Date | 20-Jun-2026 |
| 3 | 04-Jun-2026 | Tender Opening Date Postponed | Date | 20-Jun-2026 |
| 4 | 03-Jul-2026 | Tender Opening DatePostponed | Date | 15-Jul-2026 |
BOQ
| Sl. No. | Item Description |
| 1 | Labour charges for Dismantling of busbar and Jumper connection of Power/Auto Transformer including disconnection of necessary wiring as directed by the Field Engineer. |
| 2 | 75 MM (1 length) |
| 3 | 50 mm (1 length) |
| 4 | Labour charges for Dismantling with out using board crane the complete accessories of Power/Auto transformer such as header pipes,Cooler Bank radiators,H.V. & L.V. bushings, conservator tanks, bucholz relays, equalizing pipes,Cooler fans, Pumps etc. and Draining the oil to the required level as directed by Field Engineer. |
| 5 | 5 MVA & Below 5 MVA Power Transformer |
| 6 | 8 MVA Power Transformer |
| 7 | 10 MVA Power Transformer |
| 8 | 16 MVA Power Transformer |
| 9 | 25 MVA Power Transformer |
| 10 | 50 MVA Auto Transformer |
| 11 | 80 MVA Auto Transformer |
| 12 | 100 MVA Auto Transformer |
| 13 | 160 MVA Auto Transformer |
| 14 | Labour charges for Pulling of Power/Auto transformer from plinth to safer side or vice versa as directed by the Field Engineer . |
| 15 | Labour charges for loading/ Unloading of Power /auto transformer with complete accessories including released oil, initial lead of 5 Metres as directed by the Field Engineer . |
| 16 | Transporting of Power/Auto Transformer, main tank with core level oil/ N2 gas , wherever necessary including all accessories and released oil by Low bed trailer and lorry as directed by Field Engineer. |
| 17 | Upto 30 Ton, Upto 100 Kms |
| 18 | Beyond 100 Kms, (Flat rate +Rs.6.00/KM/T) |
| 19 | From 31 Ton to 50 Ton, Upto 100 Kms |
| 20 | Beyond 100 Kms, (Flat rate +Rs.6.00/KM/T) |
| 21 | From 51 Ton to 100 Ton, Upto 100 Kms |
| 22 | Beyond 100 Kms, (Flat rate +Rs.6.00/KM/T) |
| 23 | Above 100 Ton, upto 100 Km |
| 24 | Beyond 100 Kms, (Flat rate +Rs.6.00/KM/T) |
| 25 | Labour Charges for loading /unloading of power transformer oil barrel with new/ released oil from store to site or vice versa including crane hire charges as directed by the Field Engineer. |
| 26 | Labour Charges for loading /unloading of power transformer empty oil barrel from store to site or vice versa as directed by the Field Engineer. |
| 27 | Labour charges for erection of Power/Auto Transformer with out using Board crane wherever applicable including gasket changing for H.V. & L.V. Bushings ,Radiator valve, Conservator Valve, equalizer Pipe Valve, Bucholz Valve, etc. as directed by Field Engineer ( Gasket to be supplied by board) |
| 28 | 5 MVA & Below 5 MVA Power Transformer |
| 29 | 7.5 MVA/8 MVA Power Transformer |
| 30 | 10 MVA Power Transformer |
| 31 | 16 MVA Power Transformer |
| 32 | 25 MVA Power Transformer |
| 33 | 50 MVA Auto Transformer |
| 34 | 80 MVA Auto Transformer |
| 35 | 100 MVA Auto Transformer |
| 36 | 160 MVA Auto Transformer |
| 37 | Labour charges for draining of oil from main tank as directed by the Field Engineer. |
| 38 | Labour charges for Intial filling of oil under vacuum from spare tank / barrel to main tank as directed by the Field Engineer. |
| 39 | Labour for dismantling of Top Cover with gaskets including OLTC cover and Replacement of Top cover gaskets, OLTC gaskets, Radiator, Butterfly valve inner Gaskets and all other gaskets, which are not normally covered under dismantling and re-erection, gaskets changing and refitting of top cover and OLTC cover plate & all other dismantled accessories and complete tightening works as directed by the Field Engineer. All the required Gaskets of RC 70C grade and governed by IS 4253 to be supplied by Contractor. |
| 40 | 8 MVA Power Transformer |
| 41 | 10 MVA Power Transformer |
| 42 | 16 MVA Power Transformer |
| 43 | 25 MVA Power Transformer |
| 44 | 50 MVA Auto Transformer |
| 45 | 80/100 MVA Auto Transformer |
| 46 | 160 MVA Auto Transformer |
| 47 | Labour Charges for Overhauling of Power/Auto Transformer OLTC mechanism including Lifting of divertor switch, cleaning and replacing of defective spares and gaskets, consumables, crane hire charges etc. as directed by the Field Engineer. (Excluding the cost of replacement materials) The work can be carried out purely on the basis specially trained technician's service availed from the reputed companies. |
| 48 | 8 MVA ( 33 KV Class) - Single Unit |
| 49 | 10 MVA to 25 MVA ( 110 KV Class ) - Double Unit |
| 50 | 50 MVA to 160 MVA (230 KV Class and Above ) - Triple Unit |
| 51 | Labour charges for Hot oil Circulation of Transformer and OLTC under vacuum drying whenever applicable and maintain required level and circulation of oil till obtaining satisfactory results as directed by Field Engineer. The filter will be provided by contractor. |
| 52 | Charges for Hot Oil Circulation for New/Released used Oil |
| 53 | Oil Filter Machine Rent, Maintenance, Transportation (To & Fro), Toll Charges and including all consumables. |
| 54 | Labour for the erection of required control cable in ducts from power transformer to control room and in the transformer body as directed by the Field Engineer. |
| 55 | Upto 8 core cable |
| 56 | Above 8 core cable |
| 57 | Supply and glanding of all the control cable in transformer to RTCC, DM.Box, MBox, etc including removing of insulation of the control cable and providing suitable holes in the gland plateas directed by the field engineer. |
| 58 | 32 mm |
| 59 | 28 mm |
| 60 | 25 mm |
| 61 | 19 mm |
| 62 | Supply and Termination of cable core end dressed neatly including the cost of cable sockets , ferrules, sleeves, tags, ties,stropes etc. as per drawing directed by the field engineer. (No. of core ends in unit of 1000). |
| 63 | Labour machinery, Consumables for fabrication, erection of earthmat, eart connection, earth electrode, earth pike (including sharpening of eath spike) as directed by the field engineer. |
| 64 | Supply of various steel materials confirming to ISS 2062 - Gr A including frieght,handling etc. at site for earthing with labour for fabrication and erection for earthing including labour, machinery consumables for the double earthing of neutral , main tank and other panel etc.as directed by the field engineer. |
| 65 | Labour charges for one finish coating of aluminium painting works with spray gun for transformer complete including T&P etc. and painting of valves, bushings with red, yellow, blue and black paint including cost of paint of reputed make company viz Asian, Berger etc., and Consumables as directed by the field engineer. |
| 66 | Up to 8 MVA Power Transformer |
| 67 | 10 MVA to 25 MVA Power Transformer |
| 68 | 50 MVA to 100 MVA auto transformer |
| 69 | Labour charges for conversion of 1No, 8 MVA,33/11 KV, Indoor type Power Transformer into Outdoor type with Marking on the top cover plate for HV and LV bushing, gas cutting, studs welding, Fixing blanking plates, Supply and erection of 12mm gaskets for Top cover and tightening works as directed by the field engineer.Note:HV and LV Bushings rate specified seperately.Not included in this rate. |
| 70 | Supply and erection of silica gel breather flange type including the cost of 4-6 mm blue mesh silica gel. |
| 71 | Supply and Erection of HV & LV side Power connectors including the cost of bolts, Nuts and Electricalconnections as per drawing directed by the field engineer. |
| 72 | HV side Power connector suitable for 145KV, 800A bushing and (90mm) 3\\" IPS Al. Busbar with 2Flexible Braided Copper with Bi-Mettalic sheets for flexible end lugs as per IS-5561 & Drawing asdirected by field engineer. |
| 73 | ii) 50/75 mm |
| 74 | LV side Power connector |
| 75 | i) M20 for Single Zebra (3x1195) |
| 76 | ii) M30 for Single Zebra (3x1574) |
| 77 | iii) M40 for Single Zebra (3x4242) |
| 78 | iv) M50 for Single Zebra (3x6688) |
| 79 | Labour charges for Erection of Aluminium Bus bar including suitable modification of switch end clamps and Transformer free end clamps, providing suitable bend and holes wherever necessary as directed by the Field Engineer. |
| 80 | 50 mm BusBar with bend |
| 81 | 75 mm BusBar with bend |
| 82 | Labour for erection of LV Jumper including modification of clamps providing holes wherever necessary as directed by the field engineer. |
| 83 | Supply and erection of Neutral omega (Flexible connector) tinned copper 100mm stampering at both end strip size (0.5x100x700mm) with copper M-42 Nut & washer of suitable length and diameter as per drawing and as directed by the field engineer. |
| 84 | Up to 16 MVA |
| 85 | From 25 MVA to 100 MVA |
| 86 | Supply & erection of 1 no. Oil Temperature indicator |
| 87 | Supply & erection of 1 no. Winding temperature indicator with four control switch |
| 88 | Labour charges for rewinding of cooling fan motors including cost of bearings, terminal blocks, terminal cover including testing of fan motors for healthyness and refixing the repaired motors in its place (ie) on radiators (if necessary) as directed by the Field Engineer. |
| 89 | 25 MVA and Above |
| 90 | Labour charges for rewinding of cooling pump motors including cost of bearings, terminal blocks, terminal cover including testing of pump motors for healthyness and re-erection the repaired motors in its place ie) on headers (if necessary) as directed by the Field Engineer. |
| 91 | 25 MVA and Above |
| 92 | Labour charges for Applying vacuum in the Auto transformer including vaccum kit etc. at SS and filling of Nitrogen/Dry Air upto required pressure for Transporting Purpose/Improving IR Value as directed by the Field Engineer.(N2 gas/Dry air to be supplied by contractor.) |
| 93 | Supply and erection of various sizes of GI bolts &Nuts and washers of required sizes to be used for erection of Turret, Radiator, wheel bolts, Conservator, Foundation bolts for A frame etc. as per the requirement during erection. |
| 94 | Supply ,transporting and erection of Power Transformer accessories |
| 95 | Winding CT's (105/1.75A,280-840/1.75 A,10 VA class -5) of required ratio. |
| 96 | PRV with operating pressure 0.42,0.49,0.56 Kg/cm2,operating tolerance+ 0.1Kg/cm2, port opening Nominal 70 mm. |
| 97 | Surge relay as per IS 3637 |
| 98 | Cooler fan 0.25 to 1 Hp,440 V ,50 Hz |
| 99 | Cooling Pump 3.73KW , 3Ph,415V AC |
| 100 | Magetic Oil Gauage dial with minimum,maximum and normal (at 30C) marking and pointer and low oil level contact of 0.5 Amps , 110/30 V DC rating. |
| 101 | Buchholz relay as per IS 3637 |
| 102 | Butterfly valve as per required size |
| 103 | Bushing CT's |
| 104 | HV CT'S as per required ratio |
| 105 | LV CT's as per required ratio |
| 106 | Ladder |
| 107 | Labour charges for Dismantling of RTCC, Cooler control panels including consumables of Power/Auto Transformer including disconnection of necessary wiring as directed by the Field Engineer. |
| 108 | Panel and wiring dismantling Please Enable Macros to View BoQ information |
AI Tender Summary
Tender Timeline
Jul 03, 2026
11:30 IST
Tender Published
Tender notice published.
Completed
Jul 04, 2026
18:00 IST
Corrigendum-1 Issued
Clarifications on tender conditions and amendments issued.
Completed
Jun 20, 2026
18:00 IST
Corrigendum-2 Issued
Clarifications on tender conditions and amendments issued.
Completed
Jun 20, 2026
18:00 IST
Corrigendum-3 Issued
Clarifications on tender conditions and amendments issued.
Completed
Jul 15, 2026
18:00 IST
Corrigendum-4 Issued
Clarifications on tender conditions and amendments issued.
Upcoming · 8 daysJul 15, 2026
17:00 IST
Bid Submission Deadline
Online submission via eProcurement portal.
Upcoming · 8 daysJul 17, 2026
Bid Opening Date
Technical bids will be opened and evaluated.
Upcoming · 10 daysTender Documents
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