138WE/L-12/2020-21

Amount

Supply, installation, testing and commissioning of Diesel engine driven Generating set, self excited, self regulated, brushless AC generator of Capacity 125 KVA / 100 KW, 415 Volts, 3 Phase, 0.8 power factor, 50 Hz, 1500 RPM, with silencer pipe ( acoustic enclosure) protected with asbetos rope independently supported from engine to outside power house up to 1 mtr, AVM pads, PCC (1:2:4) type B-1 (using 20 mm graded crushed stone aggregate) foundation as per manufacturer design, battery start with suitable cable for connection up to panel board . The DG Set will be capable of operating in Temp range of (-) 35 degree centigrade to (+) 35 degree centigrade at an altitude of 4250 mts above MSL complete with and including the following:-

ALTERNATOR : Alternator rating 125 KVA(100 KW), 3 phase, 50 cycles, 415 volt, 4 wire supply at NTP , 0.8 power factor, running @ 1500 RPM self excited, self regulated, mounted on a strong fabricated steel frame, suitable for mounting on a permanent foundation 4 wire, 415 Volts,50 cycles, 1500 RPM, self excited, self regulated, mounted on a strong fabricated steel frame suitable for mounting on a permanent foundation to be coupled with above engine. The alternator shall be conforming to BS 2613/5000 and shall be in position to generate supply with frequency regulation within ± 3% tolerance. The alternator will be suitable for tropical climate and shall generally confirm to BS 2613/ 5000 or IS 1722 along with self regulated AVR system. Make : Stamford/Kirloskar/Jyoti/ cummins/GEC/Crompton Greaves

DIESEL ENGINE : Vertical diesel engine of suitable capacity, naturally air cooled, closed circuit as per BS-649 or IS-1002 direct injuction type turbo charged Make : Cummins India Ltd/Kirloskar/Greaves/Ashok Layland/Ruston/ Mahindra Powerol/ Caterpillar Electric starting system having rated speed 1500 RPM. The DG set Shall be capable for running 24 hrs continuously with 10% over loading for one hour in every 12 hours as per BS-5514/BS-649. Engine shall be multi cylinder, multi stroke, direct injection, cold starting and equipped with all standard fitting as per manufacture's recommendations and mounted on common base frame with following fittings for Make of Diesel Engine : Cummins /Kirloskar/ Caterpillar/ Greaves/Ashok Leyland/ Ruston/ Mahindra Powerol.

(a) Fly wheel with housing (i) Common base frame of sturdy design suitable for anti vibration mounting and permanent concrete foundation for mounting engine and alternator as per manufacturer's instructions

"(b)Cooling system Naturally water/liquid cooled type."

"(c) FUEL SYSTEM : Fuel injection system with fuel injector, fuel injector pump/governer electronic type fuel filter and fuel hose. "

(d) LUB OIL SYSTEM : Lub oil pump,Electric motor driven and lub oil filter.

"(e) AIR INTAKE SYSTEM : Air intake manifold and air cleaner dry type. "

(f)GOVERNER : Electronic Governer.

(g) ELECTRIC STARTING SYSTEM : Electric Self starter , 12 volts DC battery (12 volt, 180 AH battery 1 No) charging alternator with regulator battery as per manufacturer's design, copper leads with lugs of adequate size complete with initial charging fly wheel ring and start and stop push button. Battery:- 1 No maintenance free battery 12 volts 180 AH capacity complete with copper conductor multistranded leads to suitable length from self starter to the battery terminals complete with initial charge and initial fill of electrolyte all as specified.

(h) Safe Controls Engine low lub oil pressure ,high water temp, over speeding of engine and battery charging voltage display.

j) GENERATOR MONITORING PANEL : Comprising of following :- (i) Microprocessor based genset controller for metering, monitoring, governing and protection. (ii) Engine protection for low lub oil pressure, high coolant temperature (alarm & shutdown) (iii) Alternator protection parameters like under voltage, over current, under frequency, over frequency (alarm & shut down)

(k) ACCESSORIES: AVM Pads built or separately mounted to manufacturer base frames.

(l) COUPLING ARRANGEMENTS: Fixed coupling, flywheel to suit fixed coupling and fly wheel housing.

(m) EXHAUST SYSTEM : Silencer complete with exhaust pipe of suitable size upto and out side the building all covered with asbetos rope of suitable size all as directed.

(n) FUEL TANK: Daily service fuel tank of capacity suitable for 8 hours continuous operation made out of 3 mm thick (heat retardant) sheet top and bottom with caliberated level indicating arrangement, stop cock, drain plug, fuel pump of suitable capacity and connected pipe line should be installed with in built tank inside the acoustic enclosures inclusive of the cost of DG set and is as per manufacturer design.

(o) . ACOUSTIC ENCLOSURE : Enclosure is free standing floor mounted factory built and modular in construction to facilitate easy assembly at work site and will be drop over housing type. It will consist of acoustically treated panel housed in sheet steel will provide easy access for maintenance, repairs and operation. The enclosure is custom built to suit conditions, with the following features:- (i) Custom built product for various Equipments, which ensure the optimum performance. (ii) Rugged in construction maintenance free and modular designs which facilitate easy at site.

(iii) 16 SWG (1.6 mm) thick CRCA sheets to be used for enclosure panel to ensure longer life against weathering action. High quality acoustic insulation materials to be used as per IS 8183 for maximum sound absorption. Acoustic layers are supported by perforated sheets. (iv) Sheet metal components of the enclosure should undergo various stages of surface treatment prior to painting which leads to be better life of the enclosure against weathering action. (v) Special paint treatment with pure polyester powder / epoxy to be provided for better weather resistance. (vi) Well designed ventilation system to be provided to pump up the heat in the chamber efficiently. (vii) For effective acoustic / weather sealing a special type weather sealing gaskets, new frame rubber gaskets to used.

(viii) Working space is to be provided around the equipment for easy maintenance / repairs. (ix) Necessary cut out provision for entry and exist of fuel lines cable to be incorporated in the enclosure as per the requirement. (x) A see through transparent window (glass or acrylic) in front of engine panel to provided for monitoring the operation. (xi) Ducting if required, bellows, mechanical hardware like locks, hinges fasteners etc to be provided. (xii) Deliverables. 75 dBA @ 1 mtr at full load under free field conditions. The temp inside the enclosure will be within as per manufacturer’s recommendations above ambient temp. (xiii) The enclosure should be provided with bulk head light fitting for inside illumination. (xiv) The battery should be placed inside the enclosure beside the DG Set on a suitable insulated plat form. (xv) The DG Set should be provided with external Emergency stop push button. (xvi) The acoustic enclosure parts shall be of powder coated after pretreatment process. The powder coating shade should be as per manufacture's design. The base frame should be painted with epoxy based black shade.

The following items are deemed to be included in the rate quoted for all DG sets:- (i) DHPP for testing purpose shall be supplied by the contractor without any extra cost to Govt. (ii) The contractor shall arrange for artificial load (water load) for testing for final testing of DG Set at site and the cost is deemed to be including in above offer.

(iii) Testing of sound level should carried out at the site in presence of Accepting officer or a person as authorised by him. (iv) One year maint with spare parts such as fuel filter, air filter, oil filter & engine oil as per manufacturer's maint schedule and as directed by Engr-in-Charge is deemed to be included in the above offer. (v) One set of latest Spare part catelogue with price, exploded view of parts and user's manuel are deemed to be included in the offer.

(F) FOUNDATION:- PCC foundation for DG set shall be all as per manufacturer’s instructions/recommendation or required at site or as directed by Engr-in-Charge. Cost of the same shall be deemed to be included in the lump sum cost of DG set quoted by contractor.

Earthing complete with galvanised steel earth plate electrode 60cmx60cmx6 mm thick buried directly in ground.(earth pit not less than 2.25 mtr deep below normal ground level) with top edge of plate not less than 1.5 mtr. Below ground level connecting to galvanised iron strip 32x6mm as earth lead by means of bolts, check nuts and washers of GI and earth strip protected by provision of GI pipe light grade, 40mm bore including provn of concrete pit in PCC (1:2:4) type B-1 using 20mm graded crushed stone aggregates with 40mm thick cover of RCC (1:2:4) reinforced with XPM ( weight not less than 4Kg/Sqm) and frame of angle iron 25 x 25 x 3mm with lugs 2 Nos and with 6mm dia MS bar handle made to shape, GI medium grade 20mm bore pipe for watering perforated at bottom 1.75 mtr long placed on top edge plate, common salt and charcoal filling, test point made out of phosphorous bronze with fixing arrangement, funnel, wire mesh and earth work in hard/dense soil,returning filling in and removal of surplus soil to a distance not exeeding 50 mtr, all as per electrical plate No 3 of SSR 2009 Part-I and connection all as specified and testing on completion. Note: The cost of excavation and earth work, PCC pit and pit covers, funnel and watering pipe, wire mesh, charcoal dust and common salt, 40mm dia, medium grade, GI pipe as protection to earth lead and earth lead as 32x6mm dia GI strip (main earthing lead from earth electrode to test point length not less than 7.5mtrs) shall be deemed included in the unit rate for earthing.

M/s Aman Enterprises

neelam construction co