PROVISION OF 350 KVA DG SET FOR AC PLANT AT AF STATION DEOLALI

Amount

Supply, installation, testing and commissioning of silent diesel engine driven ,factory assembled, floor mounted generating set suitable for out put, 350 KVA (or next higher rating available) , 415 volts, 3 phase, 4 wire, 50 HZ,1500 RPM water Cooled complete with safety control and metering equipment mounted on & including common base frame on new PCC foundation as recommended by manufacturer all as specified and comprising of the following :- Prime Mover: Directly coupled diesel engine with blower fan, suitably matching Min 280 KW (or next higher rating available) under NTP condition of BS:5514 for driving Min 350 KVA (or next higher rating available) capacity , alternator electric start, four stroke confirming to latest IS-10001/10002 Part -II 19801 for continuous running and capable for taking 10% over load for 1 hours in every 12 hours complete with following accessories :- (i) Engine (Turbocharged with water cooling) (ii) Fly wheel to suitable coupling with guard (iii) Air cleaner with filters (Dry type, Replaceable paper element air cleaner with restriction indicator, (iv) Spin on filters-fuel, lube oil filter , (v) Lubricating oil gauge. (vi) Anti- vibration pad as recommended by manufacturers (vii) PT pump with governor of suitable capacity & flywheel housing and flywheel to suit single bearing alternator (viii) Electric starters-self starter 24 Volt DC

(ix) 12 volts, dry maintenance free b+B12 battery 02 Nos supplied along with in charged condition along with flexible copper battery lead and connector & Battery charging alternator (x) Standard safety devices. (xi) Daily services fuel tank ( not less than 850 litre capacity , Tank complete with level indicator, fuel inlet and outlet, air vent , drain plug including arrangement for direct filling ) for full running capacity of DG set for min 08 hours enclosed within the canopy all as per CPCB with level indicator, fuel outlet drain pug, air vent and locking arrangements etc. (xii) Exhaust system shall be provided with thermal insulation by using fire retardant / non igniting foam confirming to BS-4735 to prevent excess heat radiation on the engine and sage for operator, Critical grade silencer suitable optimized to meet stringent sound emission standards laid down by MOEF/CPCB, Stainless steel exhaust flexible bellows to meet emission norms & Exhaust system shall not be based on (Exhaust Gas regeneration) i.e. EGR (a) Integrated DG set controller (DG set should have a microprocessor based controller LCD display for engine and alternator alongwith automatic tripping arrangement of generator with misbalancing output voltage) Integrated Electronic Control Panel (displaying the following Engine parameters): (1) Engine Metering: Oil pressure, Engine temperature, starting battery voltage, Engine running hours. (2) AC Alternator Metering : L-L Voltage and L-N Voltage, (3) Current (phase and total), KVA (phase and total), Frequency, (4) Engine Protection : Low lube oil pressure, Battery Over/under/Weak Volts, Fail to Crank/Start, Sensor failure, cranking lockout MODBUS interface (RS 485 RTU) (5) AC Alternator Protection : Over/Under Voltage, Over/Under Frequency, Loss of AC sensing. (6) Safety Control (Trip & Indication)

(7) High water temperature (hwt) (8) low lube oil pressure (llop) (9) Battery Over/Under/Weak Volts. (10) Failed to start, over crank lockout stop pressed. (b) Alternator: 350 KVA/280 KW (or next higher rating available) at 0.8 power factor, self regulated 3 phase with neutral 415 volts 50 Hz 1500 RPM with brushless excitation, Band of Voltage regulation + 1% of rated voltage, from no load to full load, Insulation Class "H" The alternator generally confirms to BS EN : 60034-1 / IS:4722. (c) ACOUSTIC ENCLOSURE : Floor Mounted Acoustic Enclosure suitable for 350 KVA (or next higher rating available). The DG set shall be guaranteed against faulty workmanship/poor material quality and against failures due to the same. Make: Kirloskar / KOEL Green or equivalent in Cummins/ Crompton Greaves/ Mahindra Note 1: DG Set of approved makes rating Min 350 KVA (or next higher rating availale upto 380 KVA ). In case 350 KVA is not available in market , contractor shall provide next higher rating upto 380 KVA factory assembled readily available in the market with prior approval from GE and rates are deemed to be included in quoted rates. Note 2: Rate for PCC concrete Type B1 1:2:4 using 20 mm graded stone aggregate cement concrete foundation as per manufacturer specification deemed to be included in the quoted rate.

Supply, laying and testing cable XLPE Insulated ,screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 185 sq mm 3.5 crore including necessary connection with provisioning of aluminium lugs and cable gland fixing arrangement Complete all as specified and directed .

Excavation in trenches not exceeding 1.50 mtr wide and not exceeding 1.50 meter in depth forLT Cable laying and getting out in soft/ loose soil all as specified and directed.

All as per item No.3 here in before but in hard/dense soil complete all as directed.

Returning, filling in, including spreading, leveling, watering and well ramming in layers not exceeding 25cm thick each, excavated soil in trenches after the pipes have been laid and tested complete all as specified and directed.

Removing excavated soil to a distance not exceeding 50 meter and depositing where directed at a level not exceeding 1.50 meter above the starting point complete all as specified and directed.

Material and labour for earthing complete with copper earth plate electrode of size 60cm x 60 cm x3.15 mm thick buried directly in ground ( earth pit not less than 2.25 mtr deep below ground level) with top edge of earth plate not less than 1.5 mtr below ground level connected to copper strip 20 x 3 mm by means of of galvanized iron nuts & bolts or as directed at site by Engineer -in-Charge protected by GI Pipe 40 mm dia light grade and connected to test point and further connected to equipment, mcachinery, electrical panel or any other as directed by Engineer-in-Charge, which to be earthed, all as shown in electrical plate No 3 of SSR Part I including providion of concrete earth pit constructed in PCC 1:3:6 type C-1 as earth pit and PCC 1:2:4 type B-1 for cover slab with necessary reinforcement with handle for lifting also including provision of funnel with wiremesh with 20 mm GI pipe medium grade for watering, charcoal and salt in alternative layers of 15 cm thick all around the electrode , including necessary excavation and earth work , testing and commissioning complete all as directed at site.

Material & labour for fixing of DWC pipes it should be flexible & should allow deformation in diameter as well as in joints under external load & soil natural movement , socket & spigot joint with elastometric sealing ring, it should be highly corrosive resistant & it should be impact resistant, chemical resistant, flexible, light weight & it should have high flow capacity of 90/75 mm outer and inner dia complete with coupler, elbows, joints and necessary joints required for completion of work all as specified & as directed .

Supply and fix on load change over switch of capacity 630 Amps outdoor/ canopy type metal enclosure alongwith suitable foundation, 415 Volts, 50 Hz, AC, 4 pole including necessary connections and fixing arrangement on angle iron frame of suitable size complete all as directed by Engr-in-charge.

BRITE INDUSTRIES

SHRI SULAI ELECTRICALS

DASHMESH BUILDERS

Datar Electrical and Engg Services

E M CONSTROL SYSTEM

Paragon Electrotechnics

M/s.TIRUPATI BUILDERS