| 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 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:
Daily service fuel tank of suitable liters capacity as per
CPWD Specifications, fabricated out of 3 mm thick
M.S. sheet complete with all standard accessories and
fuel piping between fuel tank and diesel engine with
MS class C pipes of suitable dia.(E) FUEL TANK:
Daily service fuel tank of suitable liters capacity as per
CPWD Specifications, fabricated out of 3 mm thick
M.S. sheet complete with all standard accessories and
fuel piping between fuel tank and diesel engine with
MS class C pipes of suitable dia. Complete with
valves, level indications & accessories as required as
per specifications.
(F) Exhaust System:
Dry exhaust manifold with hospital type 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 acid SMF type) as required as
per specifications. The battery shall be housed inside
the acoustic enclosure of DG Set. Complete with
valves, level indications & accessories as required as per specifications (H) Acoustic and weather proof enclosure with
arrangement for fresh air intake for cooling of the
engine & alternator, extraction, discharging hot air in to
the atmosphere and the temperature rise inside the
enclosure, noise level outside 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 CPCB IV + or better norms
etc. and as per CPWD specifications.1. Suitable numbers and appropriate capacity 4 pole
motorised electrically operated draw out with cradle
type 3 position ACB/ MCCB with electronic release for
O/C & E/F and shunt trip.
2. Auto/Manual/Test/Off selector switch
3. 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 metering
5. 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 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 timer
12. 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 indicator
15. Audio/Video annunciation for
(i) High water temperature
(ii) Low lubricating oil pressure 17. Maintenance notification based on Engine Run
Hour & due date.
18. Load Management through PLC to achieve auto
opening and closing of incomer breakers, bus coupler
switching of 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 35KVA
the operation shall be provided by the contractor
including all control wiring.
(iii) Engine over speed
(iv) Engine fails to start
(v) Full load/maximum load warning
16. Protection for over/under Frequency, Loss of AC
sensing, Over Current, Unbalancing load with suitable
number of relays and accessories | 1 | Each |