CWE/GGN/GT-68/2025-26 SPECIAL REPAIR/REPLACEMENT OF 100 KVA DG SET AT PH NO 07 AGAINST BER AT AFSSR UNDER GE (AF) GURGAON

Supplying, installing, testing and commissioning, factory assembled silent Diesel Engine driven generator set, fully wired alternator AC to give an out put of 100 KVA (80 KW) CPCB IV+ norms latest continuously rating at a power factor 0.8 lagging, 3 phase 4 wire, 415 volts 50 Hz ± 1% supply, 1500 RPM, directly coupled with diesel engine liquid cooled mounted on common base frame complete with floor mounting fuel tank (service tank) of adequate capacity with fuel line & accessories, PCC foundation work as per manufacturer's instructions, vibration damper pads, control panel & other accessories etc and comprising of following.

(A) Diesel Engine: Liquid cooled turbo charged with after cooler to deliver suitable BHP at 1500RPM under NTP conditions of BS 5514 and conforming to IS 10002, DIN 6271 & ISO 3046 with an overload capacity of 10% for one hour in any 12 hours continuous operation with the following accessories:. Diesel engine of rated speed at full load electric start developing with system with radiator and including electronic governor control of class A1, engine control panel, lub oil pump, water pump, fuel tank, exhaust pipe with silencer and suitable for electric start with batteries of adequate capacity and suitable for alternator of specified capacity complete with fly wheel direct/flexible coupling and coupling guard complete.

(a) Radiator with blower fan or heat exchanger with guard. (b) Pipe coupling for engine cooling system piping. (c ) Corrosion inhibitor coolant (d) Paper element filters (i) Fuel filter (ii) Lube oil filter (iii) By pass (e) Fly wheel housing and fly wheel to suit alternator. (f) Engine bearing mechanism in fly wheel housing. (g) Shut off coil with safeties for LLOP/HWT/over speed. (h) Dry type air cleaners and vacuum indicators. (j) Residential silencers. (k) Stainless steel exhaust flexible bellows. (l) Diesel engines lube oil system inbuilt as per CPCBIV+. (m) Battery charging alternator.

(n) Exhaust piping made out of STIC C class, MS pipe inclusive of all accessories and hardware, necessary supports scaffolding as per manufacturer's recommendations to sustain back pressure with rain cap. (o) Mineral wool insulation 2 inch thick suitable for 400 degree Celsius temperature cladded with aluminium sheet o 30 gauge for the entire length of exhaust pipe. (p) First fill of oil, coolant and diesel during commissioning and 12 hours testing. (q) Interconnecting copper cabling of adequate capacity batteries control. (r ) Fuel pipe class STIC 1" /1.5" /2" dia - 01 lot (s) Self starter 12 volts DC. (t) Electric operated electronic governor. (u) Fuel injection pump.

(v) Electronic instrument panel, complete with all accessories as per manufacturer's specifications displaying the following:- (i) 24V Battery. - 2NOS (ii) Water temperature. (iii) lubricating oil pressure. (iv) Engine speed -1500Rpm (v) Engine hours (vi) Frequency. (vii) Voltage. (w) Safety control (Trip and indication). (i) High water temperature (ii) Low lube oil temperature (iii) Overspeed stop

(x) Base frame: Sturdy, fabricated welded construction, channel iron base frame (duly painted) for mounting engine and alternator as per manufacturer's design alonwith AVM pads. (y) Battery:-12 volts(01x12vBattery) DC, 180AH, maintenance free battery conforming to IS:14257 with leads & terminals. (z) Fuel tank: 10 hrs. full load diesel storage capacity fuel tank with mounting brackets factory made of 5mm thick HR/MS sheet with level indicator fuel inlet, fuel outlet, air vent, drain plug, in let arrangement for diesel filling fro exterior canopy (without opening its panel) etc complete all as specified and directed.

(B) Alternator: Suitable rated 100 KVA, 0.8 pf , 415 volts, 3 phase, 4 wire, 50 Hz at 1500 RPM, self excited and self regulated with AVR brushles, screen protected, drip proof , insulation class-H, IP -23, voltage regulation grade - VG 3 self ventilated and conforming to BS: 5000 / IS: 4722 suitable for engine as mentioned here-in before, conformig to IS: 13364(part-1) (C) Acoustic Enclosure:- M & L for acoustic enclosure for the above 100 KVA DG set to reduce noise level to 75 dB measured at 1.0 meter distance for audible frequencies as per guide of Central Pollution Control Board and size of accoustic enclosure sound proof insulation as per manufacturer's design and comprising of following from authorised GOEMs of Gen Set manufacturer's specified :- (i) Sound insulation : As per manufacturer's design with suitable foam. (ii) Outer body : 1.6mm thick CRCA (iii) Door : 1.6mm thick CRCA (iv) Base frame : ISMC 300 (v) Inside illumination : 1 No.- 1 x 10 watt led fitting

(D) Control panel:- Factory fabricated cubicle type, free standing, floor mounted, indoor type, IP-52, AMF control panel, provided with removable rear panels & hinged front panel for easy accessibility, fabricated out of not less than 2.0mm thick CRCA sheet including two coats of powder coated paint over a coat of red oxide primer etc and comprising of following: (E) AMF control panel outdoor with 3 pole MCCB 200 Amps - 2 nos, with ultimate breaking capacity Icu-36 KA at 415 volts and microprocessor release conforming to IEC 60947 Part-I with breaking capacity Ics=Icu at 415 volts , thermal overload setting 70% to 100%, short circuit setting 5 to 10 times-02 Nos. for main supply & DG set supply with HRC back up fuse complete with all DC control relays/ Line voltage monitor (LVM) as per OEM specifications incorporating motorised stored energy operating Engine start, stop, three attempt starting facility and failure to start etc.

(F) Digital load manager : Three phase 4 wire indicating V,I,PF, KVA, KW, F of Enercon make with serial communication port model No.EM6400 with class 1.0 accuracy meter or equivalent make suitable rating of CT per phase- one No. (iii) Indication lamp R, Y, B with 3 Nos. of 2A HRC fuses-10 sets. (iv) Bottom gland plate for incoming and outgoing cables. (v) Circuit diagram plate. Note:-The fuel for final testing of 12 hours shall be supplied by the contractor and cost deemed to be included in the above offer. All other necessary equipments like resistance load strip heater of suitable capacity/rating and any other items required for final testing shall be provided by the contractor without any extra cost to department.

M&L for Earthing complete with & including galvanised steel earth plate electrode of size 60 cm x 60 cm x 6.0 mm thick buried vertically in ground (earth pit not less than 2.25 m below normal ground level) with top edge of the earth plate at a depth not less than 1.5 m deep below normal ground level, the earth electrode surrounded by adequate quantity of charcoal dust and salt to a packed thickness of 15 cm on all sides, connected to & including galvanised steel strip 32x6 mm as earth lead, including nuts, bolts, check nuts & washers of galvanized iron or steel and riveted/welded to earth plate at one end and other end of strip connected to DG Set / transformer / GOD / Panel / equipment body / test point with two Nos nuts bolts or welding with steel structure, earth strip encased in and including 40mm bore GI light grade pipe with all fittings from upper edges of earth plate upto 7.5 metre above ground level fixed with and including 25x3mm flat iron clamps, bolts, nuts and washer and also including providing watering pipe 20mm bore GI pipe medium grade from earth pit to top of electrode and including funnel, wire mesh, copper lugs etc complete with earth pit in PCC 1:3:6 type C1 using 20mm graded crushed stone aggregate and 40mm thick RCC (1:2:4 type B1) cover complete all as specified and shown in electrical plate No 3 of SSR Part-I including necessary excavation and earthwork in any type of soil, returning, filling in approved soil and disposal of surplus soil to a distance not exc 50m complete all as specified and as directed including dismantling & taking out old existing unserviceable earthing of any type. Note : PCC chamber shall be constructed at least 1.5 mtr away from the earth electrode and pipe for watering shall be provided in slanting manner.