Public Works Department Tender
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Public Works Department - PWD Tender
Electrical Generators And Transformers
Electrical and Electronics
Eprocure
Opening Date27 Jul 2023
Closing Date14 Aug 2023
Tender Amount₹ 19,09,180
Costs
EMD
₹ 39,144Document Cost
Refer DocumentsTender Fee
Refer Documents
Description
Scription for unregistered user this is tender description for unregistered user this is tender description for unregistered user this is tender description for unregistered user this is tender description for unregistered user this is tender description for unregistered user this is tender description for unregistered user this is tender description for unregistered user this is tender description for unregistered user this is tender description for unregistered user this is tender description for unregistered user this is tender description for unregistered user this is tender description for unregistered user this is tender description for unregistered user this is tender description for unregistered user this is tender description for unregistered user this is tender description for unregistered user this is tender description for unregistered user
Contact
Tender Id
2023_WBPWD_551344_1Bid Award Id
ViewTender No
WBPWD/EE/DED/e-NIT- 26 of 2023-24Tender Authority
Public Works Department ViewPurchaser Address
-Website
http://http://wbpwd.gov.in/
GEM & Bid Advisory Services
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BOQ Items
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Rated power 250KVA
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Cooling-Mineral Oil
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Rated frequency 50 Hz
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Rated primary voltage 11 KV
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Basic Impulse Level (BIL) 75kVp & 28KVrms.
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Off-circuit tapping @ 2.5%,+5% to -10%
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Secondary voltage at no load between phases 415V
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Vector group Dyn11
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Losses shall be as per ECBC guideline Maximum Losses at 50% Load 0.98 KW Maximum Losses at 100% Load 2.93KW Maximum with load Loss at 75Deg C
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% Impedance 4.5% (IS tol)
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Temp Rise (Oil/Wdg):40/45deg
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Enclosure of Ingress of protection: IP65
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Painting should be epoxy as per latest standard with paint shade 631 of IS 5
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Terminal arrangement HV cable box suitable for HT cable 3C x 180 sqmm XLPE insulated cable, LV/HV suitable cable boxes orientation 180deg
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Fittings –
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(i) OTI,WTI, Conservator, Lifting Lugs, PRV, earthing terminals, Buchholtz relay, breather, Bi directional rollers
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Installation of 11 KV / 415 volt, 250KVA oil type outdoor transformer incl. carriage to the location within a lead of 30mtr. by placing in position and fixing after levelling, fitting all components incl. S & F base channels etc.
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Supply & laying of 11 KV grade 3 core 185 sq.mm. XLPE (E) HT cable with Al. conductor from WBSEDCL H pole feeder to transformer to be laid partly through clamping with pole and partly masonery trench as per G.S. as per direction of EIC.
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(Make - Polycab/ KEI/Havells/RR)
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S & Laying of 1.1KV grade 4 core 300 sq.mm. PVC/A AL. cable to be laid through masonary / U.G trench as per G.S. (from Transformer to ACB of sub-station L.T. main pannel board and to proposed Building) -
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(Make - Polycab/ KEI/Havells/RR)
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S & F compression type gland complete with brass gland, rubber ring for dust & moisture proof entry of 3.5 core 300 sq.mm. PVC/A Al. cable incl. finishing the ends by crimping method as per G.S.
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Making termination of the 3 core 185 sq.mm. HT cable incl.supply of necy. jointing materials & compound (Heat shrink cable jointing kit of approved make) at switch gear & transformer terminations on H.T. sides incl. testing as per G.S.
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Earthing with 80 mm dia GI pipe (TATA-Medium)x 6.0 Mts. long and 1 No. 65 mm x 8 mm galvanized (Hot Dip) steel strip (4 Mts. long), 20 mm dia x 125 mm long galvanized bolt, double nuts, double washers including finishing both ends by making holes etc. and S & F 80 mm dia GI pipe (ISI-Medium) protection (3 Mts. long) to be filled with bitumen partly under the ground level and partly above ground level to an average depth of 6.65 Mts. [For Transformer neutral − (1x2) nos, transformer body − (1x2) nos.]
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Extra for providing masonery enclosure on the top of the earth electrode of overall size 86.36 cm x 86.36 cm x 46 cm deep (below Ground level) complete with cemented brick work(1:6) of 25 cm width duly plastered with cement morter (inside) CI hinged inspection cover of size 36.56 cm x 35.56 cm with locking arrangement, GI reducer including drilling of 46 nos. 12 mm dia holes on the GI pipe.
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Extra treatment of soil by using salt & charcoal for pipe electrode as to G.S.
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Connecting the equipment body & Neutral to earth busbar incl. S & F 40 mm x 6 mm galvanized (Hotdip) M.S. flat on Wall/floor woth G.I. saddle as required and making connection to equipments with incl. drilling holes, nuts, bolts & washers as per G.S.
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Making testing arrangement and submitting the test report for high voltage testing of specified voltage incl. checking & testing of all HT / LT equipments by authorized firm of Directorate of Electricity & commissioning the installation after obtaining the Approval of Directorate of Electricity.
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S & F 11 KV grade rubber hand gloves.
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Distribution wiring in 1.1 KV single core stranded 'FR' PVC insulated & unsheathed copper wire (Brand approved by EIC) in 20mm size PVC rigid conduit 'FR' (Precision make) incl. necy. fittings as required A) 2 x 36/0.3 (2.5 sqmm) + 1 x 22/0.3 (1.5 sqmm) ECC
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