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Costs
EMD
₹ 17,000Document Cost
₹ 1,601Tender Fee
Refer Documents
Summary
Overhauling Of 25 Mva 110/66kv Transformer No.1
Description
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Contact
Tender Id
2023_KSEB_635044_1Bid Award Id
ViewTender No
E-TENDER-01/220kV SS KLR/ dtd 19.12.23Tender Authority
Kerala State Electricity Board ViewPurchaser Address
-Website
http://http://www.kseb.in/
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Documents
BOQ Items
Covering the transformer with tarpaulin using ropes,bamboos etc.and removing the sameafter completion of the work upto 100MVA transformer
1
3405
3405.99
Oil draining using 6000LPH capacity oil filtering plant after placing the filtering plant in a suitable place near to the transformer and empty tank. Operating the plant and filling the old oil in to empty oil barrel and shifting the same to a distance upto 50m for safe storage for 25 MVA 110/66 kV Power transformer.
1
12054
12054.83
Dismantling the radiator,conservator tank, EHV bushing turret,connecting pipes,cooling fans, meters, breathers,Bucholtz relays of a 110/66 kV or 66/11 kV 12.5/10 MVA transformer after draining the oil to the required level and blocking the bushing turret,radiator pipe etc.where ever necessary as per the direction of the departmental officer,and leading the dismantled items for safe storage,safely without the damaging any equipment and observing all safety precautions.(225% of 10/12.5 MVA transformer)
1
90955
90955.04
Band bolts removing and lifting the upper cover and placing the same in a safe place and refitting after the repair work etc. complete as per the direction of departmental officers.( 225% of 10/12.5MVA)
1
47314
47314.16
Cleaning the inside of core coil assembly of Transformer thoroughly , hot oil jet washing, removing all dirt and sedimentations and cleaning inside tank. re-fitting the upper cover with gasket.( 225% of 10/12.5MVA)
1
55902
55902.71
Replacing all gasket with the departmentally supplied gaskets after removing old gaskets including supplying of materials required such as sand paper, glue, new teflon washers for cooling fin's air nuts, acrolithic sheet for oil gauge etc. including cleaning of all accessories which are dismantled. ( 225% of 10/12.5MVA)
1
36380
36380.79
Re-assembling of all accessories like HV & LV bushings, conservator tank, all pipelines, cooling fins valves and relays etc. For 25 MVA transformer.( 225% of 10/12.5MVA)
1
76339
76339.09
Filling oil into 10000-15000 Ltr capacity tank after bringing the new oil barrel from its place of storage and circulating the same to obtain te necessary value
1
46416
46416.02
Connecting Vacuum Pump and creating vacuum pressure up to -760 Hg/mm and keeping the same for 24 Hours and monitor the same after leading the plant to yard including connecting equalizing connection for OLTC. For 25 MVA transformer.
1
19559
19559.28
Carrying out hot oil circulation,after refilling the filtered oil through vacuum from a tank to the transformer which is under vacuum, then fill the oil to the transformer up to the required level using oil pump,releasing air,operating the filter unit carefully to get the required vacuum and temperature and maintaining the same and run the plant continuously for 24 hours except halt due to poor voltage and trouble in filter plant,taking the insulation resistance, BDV values periodically and taking oil sample for checking oil prameters etc complete as per the direction of dept.officers.Vacuum pump,oil pump and filtering plant provided by dept.
5
33922
6784.45
Overhauling of OLTC of 110/66kV transformers by lifting diverter switch after draining oil inside the OLTC chamber , cleaning the contacts, removing sledges from the tank, refilling the chamber with new filtered oil supplied by the board
3
35118
11706.33
Providing interconnection between equipments using ACSR Moose/ Kundah/ wolf Single conductor at both ends with compressed/ bolted ends including uncoiling and cutting of conductor as per the direction of departmental officers.
7
7068
1009.81
Finishing with Epoxy paint (two or more coats) at all locations prepared and applied as per manufacturer's specifications including appropriate priming coat, preparation of surface, etc. complete. On steel work.
533.17
119067
223.32
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