PROVISION OF TRANSFORMER AND DG SET AT AF STATION BAMRAULI

Amount

Supply, installation, testing and commissioning of transformer suitable for 800 KVA (Level-2) step down floor mounted outdoor type 11/.433, 3 phase, 50 Hz AC, IS: 1180-2014 ISI marked, double wound core type copper wound, oil immersed, air naturally cooled with external cooling tubes, transformer delta connection on HV side and star connected on LV side in accordance with vector symbol Dyn-11 (vector group 4) with neutral brought out on LV side with for earthing and having tapping on HV side for constant out put so as to alter/vary secondary voltage by (Tapping range + 5 % to - 10% in equal step of 2.5 % ) changed by means of manualy operated " off load" taps changing gear. The voltage regulation shall be as per IS including first fill of transformer oil as per IS-335 and including all fittings/accessories as specified in SSR Part-I and IS-2026. The limit of temprature rise after continuous full load run as specified in IS-2026 shall be suitably adjusted to suite the maximum ambient temprature of 55 degree centigrade as prevalent at Bamrauli.The transformer shall be complete with the following fittings and accessories :-

(a) Oil conservator tank with fillings holes and cap filter type drain valve and oil level gauge.(b) Silicagel breather with connecting pipe, first fill of dehydrating agent. (c) Explosion relief mounted on tank with double diaphram and equalizer pipe connected to conservator air tank (pressure release valve) (d) Air release valve plug

(e) One cable box on LV side (Secondary) consisting of 04 Nos porcelain bushing with nuts, washers & bushing rods with 01 cable gland suitable for reception of taking out suitable size cable, including gland joint. (f) Explosive vent (g) 01 No 100 mm dial type thermometer vapour pressure type having range 0-120 degree centigrade with max temp indicator and resetting device incl max reading pointer washer etc. (h) Thermometer pocket on tank cover (j) 04 Nos plain solid CI detachable rollers

(k) Two nos Earthing terminals marking plate. (l) Rating plate and terminal marking plate. (m) Extra bushing for neutral outside the cable box brought out on LV side. (n) First filling of oil conforming to IS and tested upto 60 KV dielectric strenght. (o) Lifting lugs (p) Oil drain valve with plug

(q) One cable box on HV side (Primary) consisting of 01 cable gland suitable for reception of taking in HT cable including gland joints. (r ) Hand hole of sufficient size to assess interior of tank (s) Dehydrating breather with first filling of Dehydrating agent (t) Two earthing of terminal on tank body to facilitate fixing of 32x6mm GI strip. (u) Rating plate with terminal marking plate (v) Inspection cover.

(w) Extra bushing for neutral out side the LV side (x) PCC plateform shall be provided as per drg No CEAF/TD/EM/03, complete all as specified including XPM welded mesh fencing and doors including 75 x 40 mm channel. Note:- (i) Anything missed above but is required for efficient functioning of transformer is deemed to be included in the quoted rate (ii) Full load testing shall be done at site. The artificial load shall be arranged by contractor. This is included in above quoted rate.

Supply, commissioning erecting and testing complete of manufacturer or OEM manufactured, static silient (sound proof enclosure) Disel Engine driven Generating set of capacity 125 KVA, water cooled, 415 volts (AC three phase, 4 wire system of supply) 50 Hz at power factor 0.8 minimum. The DG set shall consists of diesel engine coupled to a matching alternator, through flexible coupling and mounted on common base frame and complete with control panel standardized by manufacturer, fuel tank with mounting arrangements and inlet, outlet return inlet oil arrangements, exhaust pipe complete and suitable for conditions prevalent at Bamrauli (capacity of engine, alternators shall worked out taking all derating factors into consideration) including PCC foundation (of suitable size leaving at least 0.5m all around for ease of movement and 0.5m height), anti-vibration pads complete all as specified and directed, including all feature to comply with latest CPCB guidelines and comprising of followings:-

(A) DIESEL ENGINE Diesel engine 1500 RPM, direct injection, 6 cylinder, four stroke, conforming to conforming to IS:100001/ISO3046/BS:649/BS:5514 amended upto date, for continous running capable of taking 10% overload for one hour in 12 hour, water cooled, naturally turbo charged, capable of giving adequate BHP to drive Alternator capable of delivery 125 KVA at outdoor atmospheric conditions at Bamrauli ( Taking all derating factor into consideration) fitting with the following accessories subject ot the design of manufacturer:-

(i) Dynamically balanced fly wheel. (ii) Air cleaner element type (iii) Electronic Governor class 1 A with back up Mechanical governor class 1A Flywheel with starter ring (iv) Dry exhaust manifold with suitable exhaust residential grade silencer to reduce the noise level

(v) Radiator cooling (vi) Radiator fan with guard (vii) Vaccum indicator (viii) Fuel filter and fuel houses (ix) Fuel injection pump (FIP)

(x) Fan and water pump assesembly (xi) Lub oil filter and pump (xii) Electric starting system with battery charging alternator and axial type started motor including adequate number of high capacity maint free lead acid bty as per manufacturer recommendation including inter connecting cables/leads with terminals complete with starting/stopping switch voltmeter, etc 01 set

(xvii) Engine main manual with spare part list (xviii) Suitable designed acoustic enclosure as per CPCB regulations (xix) Any other item not included / specified but is a standard design of the manufacturer.

(B) Engine instrument panel : Engine instrument panel shall comprising of the following:- (i) Starting on /off switch. (ii) water temp auge. (iii) Hour meter cum RPM indicator (iv) Lub oil pressure gauge (v) Lub oil temperature gauge (vi) Battery charging meter (vii) Safety alarm against high water temp and lub oil pressure. (viii) Any other item not included/specified but is a standard design of the manufacturer.

(C) ALTERNATOR - Self excited, self regulated, brush less for 125 KVA continous operation at the speed of 1500RPM at 415 volts, 50Hz three phase, 4 wire system with advance electronic voltage regulator to ensure high voltage accuracy with +1% with class H insulation and SPDP enclosure directly coupled with engine through flexible couping and conforming to IS-4722 complete-01 No. Common fabricated base frame for engine and alternator made from structural channel, jerk proof PCC 1:2:4 mix type B1 foundation including adequate number of suitable anti-vibration pads all as per manufacture recommendations is deemed to be included in the unit rate quoted by the contractor. Note:- Alternator should be able to deliver output rating at actual site condition.

(D) AMF CONTROL PANEL: Supply, fabricating and testing of factory mounted cubical automatic main failure panel with degree of protection IP-42 conforming to IS-2147, suitable for 125 KVA capacity DG Set, fabricated using 14 Gauge CRCA sheet, powder coated comprising of suitable rated bus bar, internal wiring with control fuse, provn of connecting incoming and outgoing leads/ bus bar as approved with and including following accessories:-

(i) Master switch for auto/manual/reset/off-01 No. (ii) Ammeter digital type, 96X96 mm with CT's-03 Nos aux supply 230 vlts, AC, acuracyclass 1. (iii)Voltmeter digital type 96x96 mm to read 0-500 volts supply 230 volts, accuracy class 1.0. (iv) Digital frequency meter-01 No aux supply 230 volts, AC

(v) Push button start, stop, reset-01 No. (vi) Set of lamp for indicating load a set, low pressure, high cylinder temperature, load on mains, set fails at start, low oil presure. (vi) Battery charger connected to load. (vii) CT of adequate rating to be provided in all three phases. (viii) Rectifiers

(ix) DC ampere meter and voltmeter. (x) Fault accept / reset push button. (xi) Set of relays and contactor suitable for 125 KVA DG Set for automatic start and automatically shut down of suitable rating and capacity adjustable to 70 to 100% and 2 Nos MCCB 4 pole, 160 Amp, 25 KA fixed on main supply and DG set supply. (xii) 2 Nos Power contactor of capacity 160 Amps connected to main DG supply, (xiii) Make of AMF control panel shall be as per OEM recommendations..

(E) OTHER ACCESSORIES - (i) Bottom mounted (or as per manufactures design) steel fuel tank fabricated out of 14 SWG MS sheet of capactiy not less than 12 hrs continous operation inside canopy with fuel level guage, drain plug locking arrangements etc with and including GI pipe connections duly laid as per engineering practice. (ii) Bypass arrangement by providing separate panel made out of 3mm thick CRCA sheet, outdoor type with connecting copper bus bar of suitable size from change over and set of 3 Nos indication lamp for R, Y and B and 2 Nos 4 pole on load change over switch front handle operated of capacity 160 Amp is to be installed near AMF panel (iii) Hour run meter. (iv) Any other item not included/ specified but is a standard design to the manufacturer.

Design, supply, erection, testing and commissioning of outdoor type LT Feeder Pillar of overall size not less than 1000mm Height (Without Canopy & Base Channel) 1400mm width x 450mm Depth, M.S. Channel Base Frame mounted (to be mounted on the 3 side covered brick/PCC. pedestal of height 750 mm above ground level) , suitable for 3 phase 4 wire, 415 volts AC supply and having 4 Nos copper bus bars of rating 400 amps, Provision of Spreader link to both incoming and outgoing side of MCCBs for termination of cables. The Feeder Pillar shall be duly fabricated in a approved / certified factory / fabrication house who posseses type test certificate from CPRI for similar type of Feeder Pillar and having modern fabrication and testing facility which includes atleast seven (07) tanks pre-treatment facility comprising of de-greasing, rinsing, de-rusting, rinsing, phosphating, rinsing and passivation followed by powder coated painting with approved shade of RAL 7032 (SIEMENS GRAY). The Feeder Pillar shall be provided with suitable rubber gasket to make it completely dust and vermin proof and degree of protection not less than IP-65 and general construction conforming to IS : 13947. The feeder pillar shall be made out of 3.15mm thick CRCA MS sheet for outer sheet and 2.0mm thick for inner doors/partations and 3.15mm thick gland plate and having compartmentalized construction for individual switchgears and Bus Bars and having front opening facility (with double layer shutter) and rear opening facility with single layer shutter with locking facility and 2 side slanting canopy type roof on top and mild steel channel (MC-75) base frame at bottom, suitable for mounting on the brick pedestal through grouting bolt, The panel board shall be provided with ventilation facility in the form of louvers for better heat dissipation. The feeder pillar shall be comprising of the followings :-

PROVISION FOR CABLE ENTRY :- The provision for cable entry / exit shall be provided from the bottom for both incoming and outgoing cables. BUS BARS & INTERNAL CONNECTIONS :- The bus bars should be made of Aluminium, duly insulated with 1100 volts grade standard colour coded heat shrink type PVC sleeves and rigidly mounted on suitable size 'F' class insulators of non hygroscopic non combustable, track resistant,high strength FRP / SMC / DMC material. 4 Nos Copper bus bars of rating 2400 amps, . For all internal connections from main bus bars to switch gears shall be carried out with suitable size PVC insulated aluminium strip as per the current carrying capacity of individual switch gears. Earthing bar shall be provided as per standard practice and shall be made of Galvanized Steel flats of size 25mm x 6 mm CONTROL WIRING :- All control wirings shall have to be carried out with 1100 volts rated FRLSH grade PVC insulated (Gray Colour) multi-flexible type copper wire of cross sectional area ( minimum 1.5 Sqmm) and shall be properly bunched,tied and dressed, ferrule marked for proper identification and crimped with suitable size & type of tinned copper lugs and shall be wrapped with PVC spring type flexible pipes near the door hinges.

INCOMING :- (i) ACB 1600 Amps,ET6G ,4PDraw-Out Electrical Refrence, 4 Pole,415 Volt with ready to use assembly,kit assembly for ACB &power Pack -01 No OUTGOINGS :- .(i) ACB 800 Amps,ET6G ,4PDraw-Out Electrical Refrence, 4 Pole,415 Volt with ready to use assembly,kit assembly for ACB &power Pack -02 No .(ii) MCCB 400 Amps , 4 Pole,415 Volt thermal megnetic adjustable type -02 No

Note : (1) All incoming & outgoing feeders to be marked with aluminium name plates duly rivetted on the front inner door of the feeder pillar. (2) All the cable entry / exit will be through bottom only, duly glanded with single compression type brass cable gland of suitable size. Cost of end termination of cable shall deemed to be included in the cost of feeder pillar. (3) All the inner / outer doors should have locking facility through castle locks (4) Cost of all civil work for brick pedestal, duly plastered, shall deemed to be included in the unit rate quoted.

(5) The dimention of Panel Board as mentioned above is tentative & minimum. If it is required to be increased to accomodate the switchgears and maintaining the gaps as per IE Rules, it will be increased as per requirement without any extra cost to the department. (6)The thickness of MS Sheet for outer shell and canopy shall be of 3.15mm and inner doors and partitions shall be of 2.0 mm (7) The Panel Board should be designed in such a way that adequete workable space is made available inside every compartments. (8) The drawing of the Panel Board shall have to be got approved by Garrison Engineer before starting of fabrication process.

M&L for earthing complete with galvanised steel plate electrode 600mm x 600mm x 6mm thick buried directly in ground (earth pit not less than 2.25 Mts deep below ground level with top edge of the plate not less than 1.50 Mtrs below ground level connected to glavanised iron strip of size 32mm x 6mm by means of bolts, nuts check nuts and washers of galvanised iron or steel connected to earthing test point all as specified incl 40 mm GI tubing medium grade and necessary fitting for protection of GI strip incl laying of charcoal dust and common salt in alternate layer, PCC Pit (1:3:6) type C-1 using 20 mm graded stone aggregate, RCC cover 40mm thick (1:2:4) type B-0 using 12.5mm graded stone aggregate reinforced with 6 mm dia round bar @ 75mm C/C both ways with MS handle 8mm dia, plastering 15mm thick CM (1:6) externally upto 150mm below ground level , GI funnel with 20mm dia medium grade GI pipe for watering and wire mesh incl excavation and earth work and disposal of surplus soil complete all as specified and shown on electrical plate No 3 of SSR Part (2009) and connected to earth test point incl testing and marking Bldg Nos / Name of Equipments and writing Test Results on a 3.0mm thick painted M.S. earth pit marking Plate (200mm x 200mm) duly welded with a 450mm long 10mm dia round M.S. rod, fixed with the earth pit chamber by grouting complete all as specified an directed.

M&L for earthing complete with copper plate electrode 600mm x 600mm x 3.15mm thick buried directly in ground (earth pit not less than 2.25 Mts deep below ground level with top edge of the plate not less than 1.50 Mtrs below ground level connected to copper strip of size 20mm x 3 mm by means of bolts, nuts check nuts and washers of stainless steel connected to earthing test point all as specified incl 40 mm GI tubing medium grade and necessary fitting for protection of copper strip incl laying of charcoal dust and common salt in alternate layer, PCC Pit (1:3:6) type C-1 using 20 mm graded stone aggregate, RCC cover 40mm thick (1:2:4) type B-0 using 12.5mm graded stone aggregate reinforced with 6 mm dia round bar @ 75mm C/C both ways with MS handle 8mm dia, plastering 15mm thick CM (1:6) externally upto 150mm below ground level , GI funnel with 20mm dia medium grade GI pipe for watering and wire mesh incl excavation and earth work and disposal of surplus soil complete all as specified and shown on electrical plate No 3 of SSR Part (2009) and connected to earth test point incl testing and marking Bldg Nos / Name of Equipments and writing Test Results on a 3.0mm thick painted M.S. earth pit marking Plate (200mm x 200mm) duly welded with a 450mm long 10mm dia round M.S. rod, fixed with the earth pit chamber by grouting complete all as specified an directed.

Supply and fix cable jointing kit for 11 KV grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE, armoured, Al conductor cable of size 120 Sqmm, all as specified & directed.

Supply and fix cable jointing kit for 11000 Volts grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE, armoured, Al conductor cable of size 120 Sqmm, all as specified & directed.

Supply, laying and testing cable XLPE Insulated ,screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 11000 Volts(E) grade with stranded aluminium conductor of size 120 sq mm 3 core, complete all as specified & directed.

Supply, laying and testing cable XLPE Insulated ,screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 630 sq mm,single core complete all as specified & directed.

Supply , laying, jointing and testing in replacement of underground LT cable XLPE insulated ,screened PVC bedded , galvanised steel strip or wire armoured electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 50 Sqmm 3.5 Core laid in trenches/ducts/along poles/ through pipe under road etc all as specified and directed by Engr-in-Charge

Supply , laying, jointing and testing in replacement of underground LT cable XLPE insulated ,screened PVC bedded , galvanised steel strip or wire armoured electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 25 Sqmm 4 Core laid in trenches/ducts/along poles/ through pipe under road etc all as specified and directed by Engr-in-Charge

Excavation in trenches not exceding 1.5m wide and not exceding 1.5m depth, and and getting out in soft soil/loose, all as specified and directed

Returing filling in including spreading leveling watering and well ramming in layer not exceding 25 cm as in soil all as specified and dirceted.

Removing excavated material to a distance not exceding 50 m and deposting where directed at a level not exceding 1.5 m above the starting point, all specified and directed

Supply and laying Sand dry as in cushioning of under ground electric cable in trenches, laid to a uniform thickness of 23 cm (15 cm under the cable & 8 cm over the cable) and gently punned down to 18 cm thickness all complete as specified and directed. (Note - Only punned thickness will be measured for payment purpose).

Supply and laying bricks (old size) for cable protection by using common burnt clay building bricks, sub-class ‘B’ of size 230X11.5X7.5 cm having crushing strength not less than 75 Kg/sqcm, laid dry flat across length of the cable with width of the trenches equal to length of bricks, all as specified and dirceted.

M & L for boring holes (manually) under road, hard standing without damaging surface for 80 mm dia GI pipe etc complete all as specified and directed

Supply & Laying in trenches for road/plinth and fixing alongwith pole/wall GI Tube 40 mm light grade for protection of cable, all as specified & directed.

SHREE BHAGWATI ENTERPRISES

M/S MALHOTRA ENGINEERING WORKS

Titco Electricals

BRITE INDUSTRIES