PROVISION OF STANDBY TROLLEY MOUNTED DG SET FOR LIFTS AT MAP ARGA AND LITTLE BINEGA AT NAVAL BASE KARAWAR

Amount

Supply, install on suitable four wheeler trolley, test and commissioning of Minimum 250 KVA/ 200 KW diesel engine driven Generating set with alternator out put Voltage 415 Volts +/- 1% at set value of 415 V at a frequency 50HZ +/- 0.5% with suitable standard control panel, all mounted in acoustic enclosure and AMF panel as per manufacturers design and specification as per approved CPCB-02 norms confirming to the detailed specifications appended below :-

(I) ENGINE (a)General: Suitable four stroke compressed ignition, radiator water cooled,Turbocharged aspiration, continuous duty with 10% overload capacity for any one hour in 12 hours running, 50°C intake air temperature, CPCB-02 approved Engine developing minimum 310 BHP at 1500 RPM coupled to alternator mounted on Channel Iron base frame with in built removable fuel tank of capacity not lessthan 12 Hrs consumption capacity at 75% load or more as per manufactures reccommendation. The prime mover provided should be as per IS specifications having engine overload protection.

(b) Air intake system : Should comprise of dry type intake air filter mounted on engine, one in number vacuum indicator mounted on intake piping.

(c ) Exhaust System: Should comprise of one exhaust manifold, dry type, mounted on engine, one exhaust silencer which should be positioned in such a way that the exhaust gas is not sucked by the fan on the radiator, thereby affecting the cooling system. The silencer should cater to the noise level tolerance prescribed in the relevant BS/IS. The silencer should be provided with flaps it will open only when the generator is running. The complete exhaust system shall be properly supported so that entire lot of the exhaust system shall not fall on the DG Set.

(d) Fuel System: Should comprise of disposal type element fuel filter, pressure type fuel pump mounted on engine, non return check valve in fuel supply and drain lines, wire braided hose between filter and pump, fuel system with suitable capacity full authority electronic engine electronic governor and engine mounted actuator. The fuel tank must have proper locking arrangement with level indicator and to be integrated with base frame.

(e) Cooling System: Should comprise of radiator designed and tested for 50o C ambient temperature with 7 PSI pressure cap mounted on base rail. The thermostat installed in the engine coolant outlet, fresh water pump mounted on engine, fan and fan hub mounted on engine. A reservoir of 50% of radiator capacity to replenish coolant by gravity (as and when required) is also to be provided.

(f) Lubricating System: Should comprise of lubricating oil sump mounted on engine, gear driven lub oil pump mounted on engine, lubricating oil cooler-fresh water cooled integral with engine cool out circuit mounted on engine, oil filter lubricating with cap and lubricating oil dip stick for oil level check mounted on engine. The system should be capable of feeding lube oil to the main end & large end bearings, cam shaft, valve rocker gear and all moving parts.

(g) Starting System: Should comprise of suitable voltage DC electrical starter mounted on engine, with suitable maintenance free batteries -2 Nos 2 Nos. 25 Plate, 180 Amps, 12 Volts Battery with one set of connecting leads of 75 sq mm Size Copper Cable to be mounted in trays (having rubber insulation) on the main frame or the capacity as per specification of manufacturer. It should have the provision to charge the battery from external sources during static condition and while running of the generator.

(h) AC Generator : The generator shall be horizontal and foot mounted, minimum 250 KVA, 415 Volts, 3 phase, 4 wire, 0.8 PF, 50 HZ, seperately excited, self regulated, brushless AC generator, suitable for an ambient temperature of 50° C with IP-23 enclosure class H insulation and temperature rise limited to class H as per following technical details

(i) Type : Brush less AC Generators

(ii) Output rating minimum : 250 KVA

(iii) Output Voltage: 415 ± 1% under all loading conditions.

(iv) Output frequency : 50Hz ±0.5% up to 0.8 lagging.

(v) No of Phases: 3 phase with 01 Neutral (4 wire)

(vi) Mounting : Horizontal foot mounted.

(vii) Enclosure : Minimum IP-23 / Drip proof and screen protected.

(viii) Automatic voltage regulator.

(ix) Class of insulation-'H'

(x) AREP exciatation system

Make : KIRLOSKAR GREEN/Stamford/Leroy-Somer or as reccommended by OEM.

(j) BASE FRAME: Shall be stand by and fabricated from CRCA sheet or as recommended by the manufacturer metal which shall be suitable to mount the engine, alternator and radiator, channel width of base frame shall be adequate to accommodate anti-vibration pads.

(k) CONTROL PANEL: (i) Shall be indoor type manufactured with 14/16 guage CRCA sheet and is powder coated for weather-proff and long lasting finish consisting of microprocessor power command controller, Aluminium busbars with suitable capacity with incoming/outgoing terminals, indicating lamps for 'Load ON' and 'Set Running', instrument fuses duly wired and ferruled, MCCB of suitable rating with overload and short circuit protections etc. complete all as specified and directed. (ii) Standard Auto Mains Failure panel suitable to activate the DG set automatically on power failure shall be provided with necessary accessories like switchgears, meters and other accessories. The panel shall be designed for manual operation if required. The control panel shall consist of all the controls of the alternator as required and recommended by standard codes of practice and shall be originally manufactured along with the alternator, floor mounted, cubical type with LT switch board and complete with internal wiring. Suitable arrangement shall be made for joining incoming cable and for connecting the bus duct on the outgoing side. This shall be dust/ vermin proof.

Note :- The cost of control cables from engine Control panel to AMF panel shall be deemed to be included in the cost quoted.

(m) Accessories :-

(i) 01 No standard mechanical and electrical tool box.

(ii) Internal covered tube lights.

(n) Acoustic Enclosure :-

Specially designed to meet CPCB norms 75dBA @ 1 mtr at 75% load under free field conditions. The Acoustic enclosure is made of CRCA sheets and a structural/sheet metal base with high quality noise absorbent and fire-retardant grade acoustic insulation material (P.U.Foam) complying to IS 8183 with two point lifting handles

(o) Internal Lighting: Tube lights with protective mesh around it to be fitted inside the container for proper illumination

(p) Doors : The enclosure will be provided with suitable doors on the side and rear to enter the enclosure during operation and maintenance. All doors will be provided with lock and handles for opening/ closing the doors, retainers for holding the panel door.

(q) Painting Scheme

Superaltive fade resistant paint can last longer in through whether conditions

(r) Lifting/ Transportation arrangements :-

Container with suitable corners will be provided to lift the DG set along with container. This is suitable for road/ rail/ sea transportation.

(s) Trials:-

Trials on site should be given as per load tests prescribed and all functional trials should be shown.

NOTE : Following shall be deemed to be included in cost quoted :- 1. Cost of Four wheeler trolley for installing the DG set with spring leaf suspension for 4 tyres. Main chassis will be of ISMC 200x65mm channel and cross member of 100x50 mm ISM, welded with reinforcement. M. s chequered plate will be welded on the platform of 4mm thickness. Tyre of brand :JK/MRF/CEAT/APOLLO ANY AVAILABLE STANDARD BRAND OF8.25 X 20.16 with heavy duty disc with manual locking brake system of pull type will be provided for both axles. Front axle will be of manoeuvre type with tilt plate and towing a frame channel with i bolt. All the framework will be degreased and spray painted with one coat of epoxy primer and epoxy paint. Manual sliding jack lift and pin lock type, Earthing electrode with flexible copper wire of 3 mtrs,(Dimension LxWxH : 5000 mm x 1650 mm x 1100 mm). and any other accessories shall be provided as per manufactures recommendation and cost of the same deemed to be included in the quoted rate.

2. Cost of testing including arrangement of artificial load upto 110 % of rated capacity, temporary arrangement of connecting cables, decibel meter and cost of fuel & testing material shall deemed to be included in the quoted rate.

Supply and Laying LT UG cable 1100 Volts grade XLPE insulated PVC sheathed amoured, heavy duty, in trenches/walls/poles/passing through pipes with multistranded aluminium conductor including lugs/thimble/ferules connection, testing and commissioning complete including taking out old unserviceable cable for 240 sqmm 3.5 core.

BRO TECH ELECTRICAL & ENGINEERING SOLUTION

BRITE INDUSTRIES

M/S VERNEKAR AGENCIES

HARSHITA MARINE SERVICES

MONA GENERATOR SEVICES PVT. LTD.

Shree Ayyappa Engineering

RAVINDRA BROTHERS

NATIONAL ENGINEERING CORPORATION