Purvanchal Vidyut Vitaran Nigam Limited Tender
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Purvanchal Vidyut Vitaran Nigam Limited - PUVVNL Tender
Eprocure
Opening Date28 Aug 2020
Closing Date5 Sep 2020
Tender AmountRefer Documents
Costs
EMD
₹ 42,500Document Cost
₹ 3,540Tender Fee
Refer Documents
Summary
For Repairing Of 630 Kva Damage Tfs At Workshop Bamrauli
Description
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Contact
Tender Id
2020_PVVNV_505837_1Bid Award Id
ViewTender No
132/EWSC(V)/2021-21Tender Authority
Purvanchal Vidyut Vitaran Nigam Limited ViewPurchaser Address
-Website
http://http://puvvnl.up.nic.in/
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Documents
BOQ Items
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630KVA
100
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Cleaning, removing the rust of tank etc.of the repairable transformer and painting of inside of transformer tank with zinc chromate (Yellow) in two coats with spray painting machine. Zinc chromate (Yellow) shall be supplied by the contractor.
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630KVA
100
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Dismantling core and coil assembly and cleaning of dust and dirt from the core assembly and checking of LV and HV leg coils for assessing its reuse, rechecking and recording of physical dimensions of coil and cleaning of core and their components etc.
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630KVA
100
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Reconditioning of the damaged LV leg coils (3 Nos) of T/f old and damage DPC insulation is to remove and new DPC insulation confirming to IS: 1271/53 is to be provided on LV strips after cleaning of strip LV coil should be made of same size.
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630KVA
5200
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‘‘Making of complete LV leg cu Leg coils identical to original one with same number of turns, weight etc providing DPC Strip confirming to IS 1971 /53 in place of old and damage coil. Copper. coil, wire strip will be provided by the department. All coil assembly of identical voltage shall be interchangeable without requiring any special equipment. Coil shall be supported between adjacent sections by insulations, spacers, beamers and other insulations.
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630KVA
7800
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Reconditioning of minor damaged in HV/LV leg coil/ Strip of transformer. work includes removing of damage part DPC insulation and providing new DPC on same HV coil/LV Strip should be properly cleaned and should be made of same size as of original .
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630KVA
20000
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Assembly of core and coils and fitting of other parts requiring replacement such as press board, making supports between adjacent sections by insulating spares and rapping etc & tapping etc. (Breezing/soldering) required, shall be arrange by the contractor.
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630KVA
100
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Taking out the core coil assembly from oven and shifting the same in assembly yard. Connection of HV Coils and its delta formation, LV connection and its star formation. Fixation of insulating material wherever necessary. Tanking out leads fortap changer contact surface between movable and fixed contacts, tap changer should operate smoothly and there should be no gap between fixed and moving contacts. Retightening of core, coil assembly to match with tank dimension. Clearance between coils, core and tank body to be as per design so that unnecessary losses are avoided. Retanking of core and coil assembly, refitting of tap changer assembly in operating condition and electrical connection of the tap changer.
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630KVA
100
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Dragging out empty tank from yard to repairing hall.
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630KVA
100
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Fitting of complete accessories of H.T. & L.V. Bushing and Bushing Rod on H.V. & L.V. side of transformer.
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630KVA
100
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Refilling of reclaimed transformer oil having sufficient dielectric strength and IR Value. Shifting the transformer to testing yard. Refitting of top cover plate, and fixing of rubberized cork sheet, breather assembly after filling of dry silicagel.
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630KVA
100
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Testing the correctness of connection, DVDF, No load, load loss test (where available), High Voltage, impedance voltage, Short Circuit and open circuit test, Voltage ratio on various tap position.
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630KVA
100
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Punching and welding of M.S. Plate on outside of transformer of size 100 x 50 mm x 3 mm on out side of transformer body. M.S. plate shall be arrange by the contractor. The detail of punching should be as below :
(1) Name of Workshop
(2) Name of Contractor
(3) Agreement No. & Date.
(4) Date of repair
(5) Capacity
(6) Unque No.
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630KVA
100
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Painting outside of the tank by synthetic enamel paint of smoke grey shade in two coats after providing red oxide primer. Red oxide primer and synthetic enamel paint shall be provided by the contractor.
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630KVA
100
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