Tender For supply installation testing and commissioning Of 01 No. Of 630Kva, 11Kv/0.415Kv Substation For New Ug Girls Hostel At Gmc Srinagar- 1 Supply, installation, testing and commissioning of following capacity (continuous loading) BEE 4 Star rated (Corresponding Level as per BIS amended upto date of receipt of tender) , 11/0.433 KV step down, 3 Phase, 50 Hz, Dyn 11 vector group, ONAN (Oil Natural Air Natural) copper wound transformer (Electrolytic grade 99.9% pure copper, Core made of first grade Cold Rolled Grain Oriented (CRGO) Core grade MOH or better, suitable for out door/indoor applications with On Load Tap Changer (OLTC) on HV side having AVR relay and Remote Tap Changer Control (RTCC) for automatic sensing of incoming voltage, automatic operation of OLTC and facility for remote and manual operation of OLTC HV side in range of +5% to -15% in steps of 2.5%, having cable end boxes on HV side suitable for 3x300 sqmm XLPE cable of 11 KV grade, including bus trunking arrangement on LV side including supplying and laying of copper conductor multicore control cable from transformer to HT breaker/panel for safety tripping, complete with all accessories and safety provisions as per relevant IS Code including first filling of filtered dehydrated oil, i/c supplying and grouting of suitable M.S. Channel with all accessories and transformer shall be confirming to IS : 2026 (Part 1 to Part 5), IS : 1180 and duly ISI Marked and as per CPWD specifications complete in all respects etc as required at site.Contd... 2 The maximum flux density in any part of the core and yoke at rated voltage and frequency shall be such that the flux density with + 12.5 percent combined voltage and frequency variation from rated voltage and frequency does not exceed 1.9 Tesla. The permissible temperature-rise shall not exceed 35 dg.C for oil and 40 dg. C up to 200 KVA and 40 dg.C for oil and 45 deg. C for above 200 KVA for winding. Inside of tank shall be painted with varnish or liquid resistant paint. For external surfaces one coat of thermo setting powder paint or one coat of epoxy primer followed by two coats of polyurethane base paint shallbe used. IS: 1180 (Part 3) shall be referred to for paint thickness for normal to medium corrosive atmosphere. For highly polluted atmosphere and special application external paint work shall be as per direction of Engineer-in-Charge. Design ambient condition : a) air temperature 50 deg C, b) Relative Humidity 90 % Max, c) Seismic Zone as per location of site, d) Altitude as per location / site. Noise level Shall not exceed limits as per NEMA TR-1 with all accessories running measured as per IEC 551 / NEMA standard.Contd... 3 The transformer should have QR code which should contain drawing, test report OEM manual,Geo- Tag of manufacturing location etc. Marking Each transformer shall be provided with rating plate made of anodized aluminum / stainless steel material securely fixed on the outer body, easily accessible, as per IS: 1180 Part-3. The entries on the rating plate shall be indelibly marked.Fitting and Accessories: The following fittings shall be provided:- a) Two earthing terminals with the earthing symbol b) Oil level gauge indicating oil level at minimum, 30°C and maximum operating temperature; c) Air release device (for non-sealed type transformers) d) Rating and terminal marking plates; e) Silica gel breather f) Drain-cum-sampling valve (¾″ nominal size thread, IS 554) preferably steel with plug for three phase transformers; g) Thermometer pocket with cap; h) Oil filling holes having (1¼″ nominal size thread) with cover (for sealed type transformers without conservator); i) Lifting lugs for the complete transformer as well as for core and winding assembly; j) Pressure relief device or explosion vent above 200 kVA; k) One filter valve on the upper side of the tank (for transformers above 200 kVA); l) Unidirectional flat rollers (for transformers above 200 kVA); m) Inspection hole (for transformers above 200 kVA); n) HV side neutral grounding strip (where one of the HV bushing terminal is connected to earth);Contd... 4 o) Buchholz relay for transformers above 800 kVA. p) Arcing horns or suitable rating lightning arrestors for HT side – 3 Nos. q) Bird guard; r) Oil temperature indicator and winding temperature indicators for transformers above 200 kVA with suitable tripping mechanism above permissible limit s) Jacking pads (for transformer above 1600 kVA); t) Additional Neutral separately brought out on bushing for earthing. u) Magnetic oil level gauge (for transformer above 1600 kVA) with low oil level alarm contact; v) Non return valve (for conducting pressure test); w) Pressure relief device or explosion vent x). Monogram Plate y) Inspection cover z). Detachable type radiators with top and bottom shutoff valve. aa) Oil Conservator with Oil level indicator, minimum level marking and drain plug for all transformers of capacity 50 KVA and above. bb) Necessary hardware, clamps, lugs etc. for termination on HV/MV etc. for all transformers.630kVA 5 Supply and fixing of 11 kV Gapless Surge Arrestor, 9 kV,10 kA, Lightening Arrestor with polymer housing, Station-type 6 Supply and fixing of 11kV GO, AB Switch, 3-Phase, 3-Pole, 200 Amp, Vertical Type 7 Supply and fixing of 11 kV, 200A, 3 - Phase Horn Gap Fuse Set 8 Supply, laying, testing and commissioning of 400 sq. mm, 1-Core, 1.1kV, XLPE insulated, Armoured, Aluminium conductor cable 9 Supply, laying, testing and commissioning of 240 sq. mm, 3.5-Core, 1.1kV, XLPE insulated,FRLS type, Armoured, Aluminium conductor cable 10 Supply and fixing of 11 Mtr. Long Pole (ST-410, SP56) with base plate excluding cement bottoming 11 Supply and fixing of G.I Pipe of 150 mm dia 2 mtr long for Pole Butts (6) 12 Supply and fixing of 11kV Polymeric composite Disc Insulator 12kV,min failing load 45kN, Lighting Impulse 75kV Positive and 80kV Negative, creepage distance 320mm with fitting 13 Supply and fixing of GI Channel/Angle/Flat of sizes including clamps for L.A Set/G.O Set/Horn Gap (duly fabricated as per site requirement) 14 Supply and fixing of Galvanized Nuts and Bolts 15 Earthing of Substation:Excavation of earth pit of dia 650 mm & depth 3000 mm, installation of Earthing pipe of 40 mm Nominal bore & 4mm wall thickness & length 2.5 mtr long as Per IS 1239.GI Strip for neutral earthing of size 25 mm x 3 mm for connection of transformer body,G.O Set & lightening arrestor as per IS 2629/85, GI nuts & bolts,refilled with earth enhancement materials and earth Chamber made of brick masonary with RCC slab cover. 16 Earthing Complete by GI Pipe 40 mm 3 mtr long through GI Strip 25×3 mm 17 Transformer Pad/G.I Channel Bedding 18 Supply and fixing of 11kV Polymeric composite Pin Insulator 12kV, 5kN, Lighting Impulse 75kV Positive and 80kV Negative, creepage distance 320mm 19 Fabrication, supply, installation, testing & commissioning of Electrical Panel of cubical construction, having 6 Nos. Angle-iron legs of suitable dimensions, to be sufficiently grouted (> 500mm depth) ,in 1:2:4 concrete mix, into the existing floor of the UPS room as per site requirement, fabricated out of 2mm thick sheet steel, compartmentalized with hinged lockable doors, dust and vermin proof, powder coated, cable alley, inter-connection with suitable size solid Aluminium strip, having switchgears and accessories, mountings and internal wiring, earth terminals and earthing, numbering etc. complete in all respects with following Incoming and Outgoings, suitable for operation on 415V, 3 phase, 50Hz, AC Supply with enclosure protection class IP42 as requiredalongwith Digital Voltmeters / Ammeters / CT Coils of requisite Ratio / Selector Switches / LED Indications / locking arrangement etc. as per the instructions of the Site Engineer:Incoming:(i) 1000 Amp 415V, 4P, ACB (Electrical Draw- out Type) having breaking capacity - 50 KA, with short circuit, earth fault & over-current relay- 1 No.(ii) 1000A, TPN, Aluminium Busbar: 1 Set.Outgoing:(i) 400A, 35-40kA, 4P, MCCB with rotary handle : 3 Nos.(ii) 100A, 35-40kA, 4P, MCCB with rotary handle : 1 No.The ACB/MCCBs are to be thermally adjustable 20 Galvanised Stay Set with 50×8mm stay clamp, guy insulator (2Nos.), anchor plate (200×200×6) mm, Nut-Bolts, 2 Nos turn-buckles, 1.8m long, 16 mm diameter solid GS stay rod & 7/3.15 mm dia GI stranded wire complete 21 Supply and fixing of Wedge Connectors / PG Clamps 22 Supply and fixing of Danger Plates with Clamps 23 Supply and fixing of GI Barbed Wire for Anti Climbing 24 Supply and laying of 100 mm² ACSR Conductor (Dog) 25 Supply and fixing of PG Clamps for 100 mm² ACSR Conductor 26 Fabrication, Supply and fixing of GI V cross-arm with top Bracket including clamp (duly fabricated as per site requirement) 27 Cement bottoming 1:2:4 mix as per Standards, 0.6 cum/pole (11 Mtr Pole) 28 Supply and applying of Red Oxide 29 Supply and applying of Aluminium Paint 30 Sundry items like Aluminium lugs, Jumpers, binding Tape, 31 Supply and fixing of 16 kN Polymer Shackle Insulators LT 32 Supply and fixing of G.I Mukey for Shackle Insulators with bolt of (50x6)mm 33 Supply and fixing of GI U-Clamps for Shackle Insulators 34 Dismantling of existing Poles and allied items and carriage of the same to site inside GMC Srinagar premises as per the instructions of the site engineer. A temporary arrangement is to be made to provide power supply to areas (affected by the instant work) till the time the entire work / substation gets commissioned. The successful bidder shall submit the Schedule/Program for the executin of the Job beforehand.
