SPECIAL REPAIRS TO DG SET AGAINST BER OF CAPACITY 160 KVA AT BOOSTER PUMP HOUSE AT NARANGI UNDER GE GUWAHATI

Amount

Supply, erecting, testing and commissioning complete of manufacturer or OEM manufactured, static silent (Sound Proof enclosure) Diesel Engine Driven Generating Set capable of delivering 160 KVA), water cooled, 415 Volts (AC three phase, 4 Wire system of supply) 50 HZ at power factor 0.8 minimum. The DG Set shall consists of diesel engine coupled to a matching alternator, through flexible coupling and mounted on common base frame and complete with control panel standardized by manufacturer, fuel tank with mounting arrangements and inlet , outlet return inlet oil arrangement, exhaust pipe complete and suitable for conditions prevalent at Guwahati ( Capacity of Engine, alternators shall be worked out taking all derating factors into consideration) including PCC foundation ( of suitable size leaving at least 0.5 M all around for ease of movement and 0.5 M height), anti-vibration pads, including all features to comply with latest CPCB guidelines and Comprising of followings:- (i) ENGINE(Prime Mover): Diesel Engine 1500 RPM , direct injection, 6 cylinders, four stroke, confirming to ISO3046/BS 5514, water cooled, naturally turbo charged, capable of giving adequate BHP to drive Alternator capable of delivering 160 KVA at outdoor atmospheric conditions at Guwahati, (Taking all derating factor into consideration), 12/24 Volt(as per manufacturer recommendations) electric battery start, complete with fly wheel all standard fittings/fixtures as per manufacturer and including suitable panel with tachometer, lub oil temperature, pressure gauge and frequency meters and also including self starter system, dynamo, fuel electric control panel with electronic governor (ECPG) and Engine protection system(Shut down, High water temperature, low lub oil, oil pressure, over speed etc) fuel tank and first fill of lub oil and other consumables etc (ii)Alternator: Brushless AC alternator, 3 Phase, 415 Volt, 4 wire, rated for output of 160 KVA, Minimum power factor 0.8, 1500 RPM, IP 23 Protection class enclosure, insulation Class "H", salient pole, revolving field, single bearing automatic voltage regulator coupled through flexible coupling with and to match the above engine. (iiI) BASE PLATE: made out of structural steel as per manufacturers recommended design/specifications.

Supply, laying connecting and testing XLPE insulated, PVC sheathed, armoured LT electric power UG cable (heavy duty) with stranded aluminium conductor, 1100 Volts grade, cross sectional area 240 Sqmm, 3.5 core laid through duct/ pipe etc. including as necessary cable and termination joints kit in reqd quantity cable glands & lugs complete all as specified and directed.

M&L for earthing complete with galvanized steel earth plate electrode size 600 mm x 600 mm x 6.3 mm thick buried directly in ground vertically in a pit of depth not less than 2.25 mtr below ground levels with top edge of the earth plate not less than 1.5 mtr below normal ground level surrounded from all sides by mixture of charcoal and common salt and electrode connected to and including galvanized strip 32mm x 6mm by means of bolts, nuts, check nuts and washers of galvanized including GI protection pipe medium grade 40mm dia connected to main earth wire on pole or control board and GI pipe medium grade 20 mm dia bore for watering funnel with wire mesh. RCC cover with frame, PCC chamber pit with PCC 1:3:6 type C-2 including excavation and earth work all as shown in electrical plate No 3 connected to earthing test point all as specified or indicated including testing on completion all as specified and directed.

M & L for Tubes, 'light grade', galvanised, with all fitting; laid in trenches/pole as cable protection of 150 mm dia complete all as specified and directed by Engr-in-Charge. (Make - TATA, Swastik, Jindal)

Supply, install, test and commission LT Panel board, TPN 415 Volts, 50 Hz, out door cubical type floor mounted CPRI approved factory made, double door dust and vermin proof IP-54, fabricated out of CRCA sheet not less than 3.15 mm thick with 2mm thick for internal compartment duly powder coated fixed on angle iron pedestal made out of 50x50x6 mm with cable chamber for individual feeders for incomming and outgoing connections, one set of LED indicator lamp RYB with switch and fuse and the panel board shall be provided with proper ventillation including suitable size of cable alley copper bus bar suitable for carrying of current 600 Amps with suitable connections from MCCB out going to main bus bar shall be carried out with TPN copper bus bars of suitable rating and connections from main bus bar to out going MCCB's (intake point) will be carried out with TPN copper bus bar as per MCCB rating duly insulated and colour coded heat shrinkable sleeve and shall be rigidly mounted on suitable size of bridge insulator including necessary PCC foundation of minimum 0.35 m height positioned and fixed with suitable nut, bolts, washers etc to the MC pedestal all as specified and directed comprising of the following :- (a) MCCB 400 Amps 4 Pole 50 Hz 415 V with thermal magnectic release having rupturing capacity 36 KA - 1Nos (Incoming).(b) MCCB 250 Amps 4 Pole 50 Hz 415 V with thermal magnectic release having rupturing capacity 25 KA - 3 Nos (Outgoing).(c) 3 Phase digital multi function meter model A, class 1, 5A with relay Vega Series - 1Nos(d) Indicating lamp 240 volts LED type - set of three.(e) Single phase preventor (VSP-3) - 01 Nos(f) Power capacitor of 50 Kvar capacity (20 Kvar- 02 Nos, 5 Kvar - 02 Nos) - 02 set

M/S. SUBHAS CONSTRUCTION CO.

PRITHWI BUILDERS