Public Works Department Tender

Supplying, Installation, Testing and commissioning of 'Silent Type' Diesel Generating set having Prime Power Rating of 125 KVA capacity, 415 volts at 1500 RPM, 0.8 lagging power factor at 415 Volts suitable for 50 Hz, 3 phase system & for 0.85 Load Factor and consisting of the followings:- a) Diesel Engine : Diesel engine 4 stroke water cooled, turbo charged electric start of suitable BHP at 1500 RPM suitable for above output of alternator at 40 Degree C, 50% RH & at 1000 Meter MSL and conforming to BS 5514, BS 649, IS 10000, capable of taking 10% over loading for one hour after 12 hours of continuous operation. The engine will be fitted complete with all the required accessories. b)Engine Control Panel: Cubical type mounted with hinged doors powder coated, modbus interface with RS485 LCD/LED screens confirming IEC standard & having following: Microprocessor based display monitoring & control panel with following features and accessories : i)DG parameter monitoring display: Line voltage, Phase Voltage, Amps, Hz, Hour, KW, KWH, KVA, PF. ii) Engine parameter monitoring display equipments: Oil pressure, coolant temperature fuel level, battery voltage & charging status, engine speed. iii) Functional equipments: Manual, Auto Start/Stop, Emergency Stop, Cooling Time, LCD Display & Fault Reset. iv) Safety features: Low lube oil pressure, high coolant temperature, radiator coolant level, over load, under & over voltage, under & over frequency, low fuel level, auto shut down, visual & audio alarm against fault, indication lamps for DG ON & LOAD ON, Emergency stop - push button. Power MCB / MCCB, Auxilary Contactors, Control MCB, Current Transformers, Aluminum bus-bars / copper power cable of suitable capacity with incoming and outgoing terminations as required. c) Alternator : Synchronous alternator rated at 125 KVA capacity, 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 SPDP enclosure IP-23, brushless, continuous duty, self-excited and self-regulated through AVR electronics conforming to IS: 4722/BS 2613 suitable for tropical conditions and with class- F/H insulation, voltage regulation + 1% of rated voltage, overload 10% for one hour in every 12 hours continues use. d) Base Frame & Foundation: Both the engine and alternator shall be mounted on suitable base frame made out of MS channel with necessary reinforcement which shall be installed on suitable cement concrete foundation and vibration isolation arrangement, as per recommendations of original equipment manufacturer.

e) FuelTank: Daily service fuel tank of 200 liters capacity fabricated out of 3 mm thickness M.S. sheet complete with all standard accessories and fuel piping between fuel tank and diesel engine with MS class 'C' pipes of suitable diameter Complete with valves, level indications airvent drain plug inlet arrangement for direct filling & set of fuel hoses & accessories as required as per specifications with engine overflow arrangement. f)Exhaust system: Dry exhaust main fold with residential exhaust silencer. g)Starting System: 12Volts/24 Volts DC starting system (as per OEM standards) comprising of starter motors: voltage regulator and arrangement for initial excitation complete with suitable nos. of low maintenance batteries of suitable capacities, as required and as per specifications. h) Acoustic and weather proof CRCA sheet, PU powder coated enclosure with arrangement for fresh air intake for cooling of the engine & alternator, extraction, discharging hot air in to the atmosphere, as per specifications conforming to CPCB Norms & FCRI approved. i) Governor-Class A (Mechanical / Electronic as per OEM) j) Air Cleaner - Dry Type k) Lubricant Oil filter & cooler l) Diesel filter m) Fly wheel housing & fly wheel to suite single bearing alternator.

Fabricating, Supplying, Installing, Testing & Commissioning of Automatic Main Failure Control including auto bypass panel suitable for 125 KVA capacity silent type DG Set complete with relays, timers, set of CTs for metering & protection and energy analyser to indicate currents, phase and line voltages, frequency, power factor, KWH, KVARH & provision for overload, short circuit, restricted earth fault, under frequency, control cabling from AMF panel to diesel engine and elsewhere if required, all complete and inter locking including the following. a) 320 Ampers, 35KA breaking capacity, 4 Pole MCCB (Ics = Icu = 100%) with thermal magnetic release - 02 Nos. b) 4 Pole ,AC 1- 300 Ampers power contactor - 02 Nos. c) Auto / Manual / Test / Off Selector Switch. d) 02 Nos. Over Voltage Relay, 02 Nos. reverse power relay and 02 Nos. under voltage relay. e) 3 Sets of current transformers 15 P 10 accuracy for protection and 15 VA Class-1 for metering, f) Energy analyzer unit to indicate current voltage frequency power factor and KWH g) Indicating lamps for load on mains and load on set LED Type h) 2.5 Ampers MCB Control for instruments. i) Battery charger, complete with transformer / rectifier, D.C. voltmeter and ammeter, selector switch for trickle, off and boost and current adjustment. j) Main supply failure monitor k) Supply failure timer. l) Restoration timer m) Control unit with three impulse automatic engine start / stop and failure to start lockout. n) Impulse counter with locking and reset facility. o) ON / OFF / Control circuit switch with indicator. P) Audio / Video annunciation for i) High water temperature ii) Low lubricating oil pressure iii) Engine over speed iv) Engine fails to start v) Full load / maximum load warning vi) Viterous enamelled danger notice plate - 01 No.