| 1 | Supply, installation, Testing & Commissioning of \"Silent Type Diesel Generating set as per CPCBIV + 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:Turbocharged 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 Degree C, 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 CPWDspecifications.(B) Engine mounted Instrument Panel fitted with and having digital display 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 Level(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 Degree C, 50% RH & at 1000 Meter MSL. The alternator shall be having Screen Protected Drip Proof (SPDP) enclosure IP23,brushless, continuousduty, dynamically balanced rotor, capable oftaking 10% over loading for onehour 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 on suitable base frame made of MS channel with necessary reinforcement which shall be installed on suitable cement concrete foundation and vibration isolation arrangement as per recommendations of manufacturer.(E) FUEL TANK:DailyservicefueltankofsuitableliterscapacityasperCPWDSpecifications,fabricatedoutof3mmthickM.S.sheet completewithallstandardaccessoriesandfuelpipingbetweenfueltankanddieselenginewithMSclass\"C\"pipesof suitable dia. Complete with valves, level indications &accessories as required as per specifications. (F) Exhaust System:Dry exhaust manifold with hospitaltype exhaust silencer and catalytic convertor.(G) Starting System:12V/24V DC starting system comprising of starter motors: voltage regulator and arrangement for initial excitation complete with suitable numbers of batteries (180 AH capacity lead acidSMF type) as required as per specifications. The battery shall be housed inside the acoustic enclosureof DG Set.(H)Acousticandweatherproofenclosurewitharrangementforfreshairintakeforcoolingoftheengine&alternator, extraction,discharginghotairintotheatmosphereandthetemperatureriseinsidetheenclosure,noiseleveloutside enclosure. The acoustic enclosure should be suitable for cable connection/connection through bus-trunking. Such arrangements on acoustic enclosure should be water proof & dust-proof conforming to IP-65 protection. The enclosure shall be as per CPCBIV + or better norms etc. and as per CPWD specifications.(I) AMF Panel:Free standing floor mounted IP 42 automatic mains failure control panel including auto by-pass, suitable for KVA as below forsilenttypeDGsetcompletewithrelays,timers,setofCTsformetering&protectionandenergy analysertoindicate currents, phase and line voltages, frequency, power factor, KWH, Kilo Volt Ampere Reative Hour (KVARH), KVA (Phase & Total),KW&provisionforoverload,shortcircuit,restrictedearthfault,underfrequency,power(aluminum)andcontrol (copper)cablingofsuitablesizeupto15meterbetweenAMFpanel,LTPanelandDGSetincludingconnection interconnectionetc.asrequired,allcompleteandinterlockingandcommunication/Ethernet/RS485/SNMPportopen protocol for BMS integration including suitable software, the panel shall be of DG Set OEM makeetc. as per approved by Engineering in charge and including the following:1.Suitablenumbersandappropriatecapacity 4polemotorisedelectricallyoperateddrawoutwithcradletype3position ACB/ MCCB with electronic release for O/C & E/F and shunt trip.2. Auto/Manual/Test/Off selector switch3. Protection for under and over voltage phase reversal (2 nos Over voltage relay, 2 Nos. reverse power relay and 2 Nos. under voltage relay).4. 3 Sets of current transformers 15 P 10 accuracy for protection and 15 VA class-I for metering5.Energy analyser unit to indicate current, Voltage( L-N & L-L), kW, kVA (Phase & Total), Frequency, KWH, PF.6.LED Indicating lamps for load on mains and load on set.7.Fuse/ MCB for instruments.8.Battery charger, complete with transformer/ rectifier, D.C. voltmeter and ammeter, selector switch for trickle, off and boost and current adjustment.9.Main supply failure monitor.10.Supply failure timer.11.Restoration timer12.Control unit with three impulse automatic engine start/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 oilpressure (iii) Engine overspeed (iv) Engine fails to start (v)Full load/maximum load warning16. Protectionforover/underFrequency,LossofACsensing,OverCurrent,Unbalancingloadwithsuitablenumberof relays and aessories.17.Maintenance notification based on Engine Run Hour & due date.18. LoadManagementthroughPLCtoachieveautoopeningandclosingofincomerbreakers,buscouplerswitchingof essential panel , interlocking providing signal to AMF Panel for load status and AMF shall give command to DG Set to auto start / auto stop depending upon load status and requirement etc. and necessary hardware and software required to perform the operation shall be provided by the contractor including all control wiring. 320 KVA |
