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| 1 | DSR 3.7 Supply, installation, testing and commissioning of following capacity (continuous loading) BEE 3 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 outdoor/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 trunkingarrangement 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. 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 dg. 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 highlypolluted 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. 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 windingassembly; 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); 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 1 600 kVA); t) Additional Neutral separately brought out on bushing for earthing. u) Magnetic oil level gauge |
| 2 | MAIN PANEL (NORMAL SUPPLY) Supplying, Installation, Testing & Commissioning of Modular, Sectionalized (Form-4B Construction) Low Voltage Panel suitable for 415 V, 3 Phase, 4 wire 50 Hz AC supply system as per standard IEC 61439 Part-1 & Part-2 as Totally Type Tested Assembly and of suitable size fabricated in compartmentalized design from CRCA sheet steel of 2mm thick for frame work and covers & doors of 1.6mm thick sheet, 3 mm thick for gland plates with stiffeners wherever required, having vibration free structure chemically treated with seven tank process before painting for surface treatment and powder coated, with suitable electrolytic grade high conductivity Aluminium busbar extensible type, DMC/SMC bus bar supports, bottom base channel of MS section not less than 100mm x 50mm x 5 mm thick, fabrication shall be done in transportable sections, entire LENGTH panel shall have a common copper earth bar of suitable size at the rear with 2 Nos. earth stud, solid connections from main bus bar to switch gears with required size of Aluminium bus bars and control wiring with 2.5 Sq.mm. PVC insulated copper FR conductor S/C cable for voltage & Current respectively. The board shall be dust and vermin proof with degree of protection IP42, free standing type mounted on base channel as per complete item no.2 of DNIT. |
| 3 | Supply and Laying of following XLPE insulated and PVC sheathed, armoured, aluminium conductor cable of 1.1KV grade as per IS 7098 (Part-I) 1988 (amended up to date) of the following sizes to be laid in existing DWC/RCC/HUME pipe as required at site. The job include the cost of making connections with suitable size of Al. Lugs/thimbles, testing, commissioning etc. as required to the entire satisfaction of Engineer In Charge. The cable should be of Polycab / Havells / Finolex / RR Kabel / KEI / RPG / Universal/Grandlay make only. |
| 4 | 35 Sq.mm. 3.5 Core PVC Aluminum conductor Armored cable. |
| 5 | 50 Sq.mm. 3.5 Core PVC Aluminum conductor Armoured cable. |
| 6 | 70 Sq.mm. 3.5 Core PVC Aluminum conductor Armoured cable. |
| 7 | 120 Sq.mm. 3.5 Core PVC Aluminum conductor Armoured cable. |
| 8 | S/E of 4 nos. sand buckets of 10 ltr. Capacity each made out of 24 Gauge G.I sheet. The buckets with sand shall be hanged on Suitable size of angle iron stand fabricated out of 1 ¼ x 1 ¼ x1/8” angle iron having hooks for hanging the buckets in two rows. The job includes the cost of painting with two coats of red paint of superior quality after one coat of primer on buckets and stands to complete the job up to the entire satisfaction of the Engineer–in–charge. |
| 9 | Supply of Erection of medium size first aid box made of 16 gauge MS sheet of size 14”x7”x5” with 6 wound dressings, 3 burn dressings, 13 gms absorbent cotton wool, one dressing scissors, one bottle of spirit of sal volatile, 1 tube of burn ointment (Burnol) tablets of aspiring, 1 No. artificial respirator. |
| 10 | Supply and Erection of shock treatment chart written in Hindi and English and local language duly framed in wood frame with glass complete as required as per India Electricity Act. (Safety rules). |
| 11 | DSR item no.2.22Providing and fixing H.T. danger notice plate of 250 mm X 200 mm, made of mild steel, at least 2 mm thick, and vitreous enameled white on both sides, and with inscription in single red colour on front side as required. |
| 12 | Supply and Erection of Fire Extinguishers ISI marked duly erected/ hung on wall with hooks including the cost of hooks with all material & labour required to complete the job in all respect upto the entire satisfaction of the Engineer-in-charge of work. |
| 13 | CO2 type of 9 Kg capacity fire extinguishers conforming to IS. |
| 14 | S/E rubber mat of size 6’x3’x 12 mm thick (ISI mark) Wide of superior quality and of approved make as approved by the Engineer –in- Charger /EC to be laid on floor in HT room in Front of panels and transformers. |
| 15 | DSR ITEM NO. 10.4S/M 11 KV heat shrinkable indoor XLPE cable jointing: Supplying and making indoor cable end termination with heat shrinkable jointing kit complete with all accessories including lugs suitable for following size of 3 core, XLPE aluminium conductor cable of 11 KV grade as required. |
| 16 | 70/95 mm² 3 Core |
| 17 | DSR ITEM NO. 10.5S/M 11 KV heat shrinkable Outdoor XLPE cable jointing: Supplying and making Outdoor cable end termination with heat shrinkable jointing kit complete with all accessories including lugs suitable for following size of 3 core, XLPE aluminium conductor cable of 11 KV grade as required. |
| 18 | 70/95 mm² 3 Core |
| 19 | DSR ITEM NO. 5.4Earthing with G.I. earth plate 600 mm X 600 mm X 6 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 metre long etc. with charcoal/ coke and salt as required. |
| 20 | DSR ITEM NO. 5.11Providing and fixing 25 mm X 5 mm G.I. strip in 40 mm dia G.I. pipe from earth electrode including connection with G.I. nut, bolt, spring, washer excavation and re-filling etc. as required. |
| 21 | DSR ITEM NO. 5.15Providing and fixing 25 mm X 5 mm G.I. strip on surface or in recess for connections etc. as required. |
| 22 | DSR Item no. 5.6Earthing with copper earth plate 600 mm X 600 mm X 3 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 metre long etc. with charcoal/ coke and salt as required. |
| 23 | DSR Item no.5.10Providing and fixing 25 mm X 5 mm copper strip in 40 mm dia G.I. pipe from earth electrode including connection with brass nut, bolt, spring, washer excavation and re-filling etc. as required. |
| 24 | DSR Item no.15.7Demolishing brick work manually/ by mechanical means includingstacking of serviceable material and disposal of unserviceable materialwithin 50 metres lead as per direction of Engineer-in-charge. |
| 25 | 15.7.4 In cement mortar |
| 26 | DSR Item no.6.4Brick work with common burnt clay F.P.S. (non modular) bricks of classdesignation 7.5 in superstructure above plinth level up to floor V level inall shapes and sizes in : |
| 27 | 6.4.1 Cement mortar 1:4 (1 cement : 4 coarse sand) |
| 28 | Supply and erection of three phase nonlinear resistor type lighting arrestor ISI marked for 3 wire 11 KV overhead lines with rating voltage 9 KV (rms) with a nominal discharge current rating 5 KVA and complete with galvanized clamping arrangement GI bolts nuts washers etc as reqd phase |
| 29 | S/I/T/C of 1 No. incoming and 3 Nos. outgoing 11kV, 630/800A, 500MVA free standing floor mounted Air Insulated metal enclosed Panel with VCB, CTs, PTs and Protection and Control equipment. The panel shall be compartmentalized consisting of Busbars compartment, Breaker compartment, Cable and CT compartment, LV compartment for Relays, indications and controls. Each compartment shall be segregated from other by metallic partition. The spring operated safety shutters shall also be metallic for safety of operation staff.Each of the CB, Busbar and Cable compartment shall have separate pressure relief device at top to exhaust arc energy in case of an arc in panel. Thus making the panel compliance to Internal Arc Class. The Panel Should comprises of following Points. 1)The panel Should be Internal Arc tested Panel for 25KA for 0.1 sec, 2)Short Time Rating of VCB & Panel for 25KA for 3 sec. 3)Thickness of sheet steel 2.5mm for load bearing part & 2 mm for non-load bearing part. 4) Mechanically and Electrically operated draw out type trolley mounted VCB, which can be rack in & out directly on the floor from the panel, no separate VCB lifting trolley accepted. 5)Horizontal draw out, horizontal isolation type VCB.6) Anti-pumping feature in built in the VCB, no separate anti pumping relay acceptable. 7) Draw out type PT trolley mounted on the top of the panel.8) Indoor type IP 4X panel with 4 different compartments (VCB, Bus bar, Cable + CT, LV) having class PM separation. 9) CT short time current rating should be 25kA for 3 sec. The racking IN and racking OUT operation shall be possible only with the Breaker compactment door closed to ensure operator safety. True close door operation panel as per latest IEC. (Only OEM Manufactured VCB Panels are accepted, No Franchises/Authorized Partner of any Manufactured Accepted) The VCB & Panel (enclosure) should be Schneider/L&T/ABB/Siemens make only. The job also includes making connection of HT cable, testing, commissioning etc. including loading, unloading etc. as required to complete the job to the entire satisfaction of the E.I.C. of the work. |
| 30 | 1-set of 3 phase PVC insulated copper bus bars 630A rating. |
| 31 | 1-triple pole draw out 11kV, 630A, 500 MVA Vacuum Circuit Breaker trip free with stored energy spring charged operating mechanism fitted with 230VAC motor for spring charging, 24VDC close & open coils with necessary auxiliary switches, emergency hand trip device and mechanical 'OFF' & 'ON' indicator. |
| 32 | 1 set of Isolating plugs and sockets for auxiliary/control circuit. |
| 33 | 1 set of 6 Nos. cluster/finger type isolating power contacts. |
| 34 | 1 No. Trifurcating main cable box for reception of 11kV, 3- core, XLPE cable of 300 mm2 and complete with wrapping glands and clamps. |
| 35 | A set of Double core CT's with ratio 100/5A-5A having one core for metering with 7.5 VA Burden output and class of Accuracy as 0.5 & one core with 7.5 VA burden output and Class of Accuracy as 5P 10 for O/C and E/F protection. |
| 36 | 1 No. 230V. A.C. panel space heater. |
| 37 | 1 set of vermin and dust proof covers and doors |
| 38 | Copper Earth Bus in each panel and Earthing connection for each breaker |
| 39 | Instrument (LV) panel mounted on top and equipped as below:- |
| 40 | 1 no. suitably sealed C.T's operated ammeter of 5 Amps. The meter should be of accuracy class 0.5 (or better) |
| 41 | 1 No. 3 way ON/OFF ammeter selector switch |
| 42 | One set of master tripping relay & TCS relay (trip circuit Supervision relay). |
| 43 | For outgoing panel 3 Nos. of numerical relay with over current, 1 No. Earth fault element make ABB /L&T/ Ashida/ Siemens/ Schneider. |
| 44 | 1 set of 3 elements of Auxiliary relay with flag for transformer faults. |
| 45 | 4 Nos. 230 Volts AC indicating lamps with fittings to indicate Breaker OPEN, Breaker CLOSED and AUTO TRIP & spring charged. |
| 46 | 1 No. 24 Volts DC indicating lamp to indicate TRIP CIRCUIT HEALTHY. |
| 47 | DC fail scheme shall be provided. |
| 48 | 1 No. Breaker Control Switch. |
| 49 | 1 No. Test Terminal Block for testing instruments & relays incoming. |
| 50 | 630/800A VCB Panel as 1 No. incoming and 3 Nos. outgoing |
| 51 | labour charges for dismantled material |
| 52 | 315 KVA transformer |
| 53 | 400 amp. OCB with HT panel |
| 54 | LT panel size 3500x900x15001 no. MCCB 400 amp. 7 Nos. MCCB 250 amp.7 nos. BBC 1000 amp.1 no. ACB 800 amp. 2 nos. Bus coupler 1000 amp.1 no. |
| 55 | 120 sq.mm 3.5 core PVC al. cond. Cable Please Enable Macros to View BoQ information |
