| 1 | Supplying, Installation, Testing & Commissioning of ‘Silent Type Diesel Generating set as per CPCB IV + or better norms along with having Prime Power Rating of KVA as below, 415 volts at 1500 RPM, 0.8 lagging power factor at 415 V suitable for 50 Hz, 3 phase system & for 0.85 Load Factor, including testing at factory and site with fuel, load for test and other necessary arrangements Complete as per CPWD specifications, should have QR code which should contain drawing, test report OEM manual,Geo- Tag of manufacturing location, rating plate as per relevant IS Code etc. and consisting of the followings: (A) Diesel Engine: Tourbocharged Diesel engine 4 stroke water cooled, multi cylinder, dynamically balanced fly wheel, electric start of suitable BHP at 1500 RPM suitable for above output of alternator at 40 0C, 50% RH & at 1000 Meter MSL , capable of taking 10% over loading for one hour after 12 hours of continuous operation. The engine will be with Electronic governor, Dry type Air filter with service indicator, first filling of engine fuel (after commissioning) lubricating Oil, Coolant and other consumables complete with all the required accessories, the Electronic governor shall be as per ISO 8528.The engine shall comply to the latest CPCB norms (CPCB IV + or better) and Conforming to BS 5514, BS 649, IS 10000, IS 10002, IS 13018 and as per CPWD specifications (B) Engine mounted Instrument Panel fitted with and having digital dis Plate for following: (i) Start-stop switch with key (ii) Water temperature indication (iii) Lubrication oil pressure indication (iv) Lubrication oil temperature indication (v) Battery charging indication and Voltage indication (vi) RPM indication (vii) Over speed indication (viii) Low lubricantion Oil trip indication (ix) Engine Running Hours indication (x) Fuel Leve (C) Alternator: Synchronous alternator rated of appropriate KVA, 415 volts at 1500 RPM, 3 phase 50 Hz, AC supply with 0.8 lagging power factor at 40 0C, 50% RH & at 1000 Meter MSL. The alternator shall be having Screen Protected Drip Proof (SPDP) enclosure IP23, brushless, continuous duty, dynamically balanced rotor, capable of taking 10% over loading for one hour after 12 hours of continuous operation, self cooled,self-excited and self-regulated through AVR conforming to IS13364(Part 2)/IS: 4722/BS 2613 suitable for tropical conditions and with class- H insulation. (D) Base Frame & Foundation:Both the engine and alternator shall be mounted onsuitable base frame made of MS channel withnecessary reinforcement which shall be installed onsuitable cement concrete foundation and vibrationisolation arrangement as per recommendations ofmanufacturer.(E) FUEL TANK:Daily service fuel tank of suitable liters capacity as perCPWD Specifications, fabricated out of 3 mm thickM.S. sheet complete with all standard accessories andfuel piping between fuel tank and diesel engine withMS class ‘C’ pipes of suitable dia.(E) FUEL TANK:Daily service fuel tank of suitable liters capacity as perCPWD Specifications, fabricated out of 3 mm thickM.S. sheet complete with all standard accessories andfuel piping between fuel tank and diesel engine withMS class ‘C’ pipes of suitable dia. Complete withvalves, level indications & accessories as required asper specifications.(F) Exhaust System:Dry exhaust manifold with hospital type exhaustsilencer and catalytic convertor.(G) Starting System:12V/24V DC starting system comprising of startermotors: voltage regulator and arrangement for initialexcitation complete with suitable numbers of batteries(180 AH capacity lead acid SMF type) as required asper specifications. The battery shall be housed insidethe acoustic enclosure of DG Set. Complete withvalves, level indications & accessories as required as per specifications (H) Acoustic and weather proof enclosure witharrangement for fresh air intake for cooling of theengine & alternator, extraction, discharging hot air in tothe atmosphere and the temperature rise inside theenclosure, noise level outside enclosure. The acousticenclosure should be suitable for cableconnection/connection through bus-trunking. Sucharrangements on acoustic enclosure should be waterproof & dust-proof conforming to IP-65 protection. Theenclosure shall be as per CPCB IV + or better normsetc. and as per CPWD specifications.1. Suitable numbers and appropriate capacity 4 polemotorised electrically operated draw out with cradletype 3 position ACB/ MCCB with electronic release forO/C & E/F and shunt trip.2. Auto/Manual/Test/Off selector switch3. Protection for under and over voltage phasereversal (2 nos Over voltage relay, 2 Nos. reversepower relay and 2 Nos. under voltage relay).4. 3 Sets of current transformers 15 P 10 accuracy forprotection and 15 VA class-I for metering5. Energy analyser unit to indicate current, Voltage( LN & L_L), kW, kVA (Phase & Total), Frequency, KWH,PF.6. LED Indicating lamps for load on mains and load onset7. Fuse/ MCB for instruments8. Battery charger, complete with transformer/ rectifier,D.C. voltmeter and ammeter, selector switch fortrickle, off and boost and current adjustment.9. Main supply failure monitor10. Supply failure timer11. Restoration timer12. Control unit with three impulse automatic enginestart/stop and failure to start lockout.13. Impulse counter with locking and reset facility.14. ON/OFF/Control circuit switch with indicator15. Audio/Video annunciation for(i) High water temperature(ii) Low lubricating oil pressure 17. Maintenance notification based on Engine RunHour & due date.18. Load Management through PLC to achieve autoopening and closing of incomer breakers, bus couplerswitching of essential panel , interlocking providingsignal to AMF Panel for load status and AMF shallgive command to DG Set to auto start / auto stopdepending upon load status and requirement etc. andnecessary hardware and software required to perform 35KVA the operation shall be provided by the contractorincluding all control wiring.(iii) Engine over speed(iv) Engine fails to start(v) Full load/maximum load warning16. Protection for over/under Frequency, Loss of ACsensing, Over Current, Unbalancing load with suitablenumber of relays and accessories |
