PROVISION OF 4 X 62.5 KVA GENERATOR SETS AT VARIOUS LOCATIONS OF XXXXXX VAIRENGTE UNDER GE SILCHAR

Supply, Installation, Testing and Commissioning of Silent Diesel Engine driven generating set 415 volts, 3 phase 4 wire, engine as per ISO 3046,BS 5514 and Alternator as per IS 4722/BS 5000, complete with relay panel and switch gears alongwith automatic starting on main failure, control panel having meter and sound proof canopy as per CPCB4+ norms and foundation etc. of capacity 62.5 KVA and complete all as specified and directed.

Engine Specifications : Engine Rating- 62.5KVA B.H.P.- 72 Stroke- 4, No. of Cylinders -4 RPM- 1500 Cyl. Configuration- Inline, Direction of Rotation- Clockwise viewed from flywheel end Method of aspiration Turbocharged Inter cooled Method of cooling- Coolant cooled. Type of Governor- Electronic Starting system- 12V Electric Start Battery-12 Volt Overload capacity 10% for 1hr. for every 12hrs.running Duty Continuous Safety control: Low lube oil pressure, High coolant temp., Over speed Applicable Standards ISO 3046,BS 5514 Fuel tank capacity-140 Ltrs Bore/stroke-104x113 Dispalcement-3.84Ltr Lube oil changed Period 750 hours or 12 months. Exhaust after treatment system- DOC +SCR Applicable Standard - BS 5514/ ISO 8528 Generator Controller-GC1206 Lube oil grade/ Specification - SAE 10W 30 CK4/Gulf Leypower XLE

ALTERNATOR Specifications : Rating : 62.5KVA KW : 50KW Type : Brushless Excitation : Self excited, self regulated (AVR) Enclosure : SPDP Enclosure protection : IP-23 Rated Voltage : 415V No. of Phases : 3 Frequency : 50Hz Power Factor : 0.8 (lag) Rated current : 83.4Amps Class of Insulation : H Voltage Regulation : ±1% Overload capacity : 10% for 1hr. for every 12hrs. running. Applicable standards : IS 4722/BS 5000

ACCESSORIES:- The following accessories will be supplied alongwith the DG set:- (i) Suitable capacity fuel tank for running continuously 8 hrs. The fuel tank will be mounted inside the conopy with connections. (ii) Anti vibration mounting pad (mounted inside the conopy). (iii) Residential silencer (fitted on top of conopy) (iv) Exide 12 volt battery with lead (v) First filled of lube oil & coolant. MICROPROCESSOR BASED AMF CONTROL PANEL The AMF Control panel shall be made of 16SWG CRCA Sheet, indoor type, dust and vermin proof, Pre-Treated and Powder coated, suitable for 415 V, 3Phase, 50Hz system to be fitted inside Acoustic Enclosure.Panel shall consist of the following Equipment‟s:- (i) Microprocessor based AMF Controller with display features for Engine & Alternator parameters. (ii) Current Transformers of suitable ratio. (iii) MCB/HRC Fuse for Control protection. (iv) Cluster Type Indicating Lamps for DG ON/Load ON/Mains ON. (v) MCCB of Suitable Rating -1 Set with 2 Sets of Power Contactor – For Mains & DG Incomer. (vi) FRLS Type Copper Flexible cable for Switchgear Interconnections. (vii) Suitably rated Auxiliary Contactors/Relays. (viii) Earth Studs. (ix) Battery Charger (x) Electronic Voltage Regulator(EVR)

ACOUSTIC ENCLOSURE: Acoustic enclosure shall be made of specially procured CRCA Sheet and structural sheet metal Base frame and comply with CPCB-IV+ norms with following features : (i) The most compact, six sided close, modular construction and detachable. (ii) Meet CPCB-IV+ / MOEF norms. (iii) Sound level < 75 dBA at one meter distance. (iv) Easy accessibility around the DG Set, which ensures optimum serviceability. (v) Special power coated enclosure, weather proof, corrosion resistant, environment friendly. (vi) Specially designed lifting hooks. (vii) Use of high quality hardware ensures longer life of enclosure. (viii) Provision for emergency stop facility. (ix) Fuel tank is specially designed and mounted inside of the enclosure as a integral part of Acoustic enclosure. Note : Apart from above cost of the following provisions shall deemed to be included in unit quoted rate:- (i) Necessary civil work for foundation as per manufacturer instructions. (ii) Anything technically required for installation of DG set, if missing above, is incl in the quoted rate.

Supply and laying under ground XLPE insulated PVC sheathed (Heavy duty) armoured 1100 volts grade aluminium conductor cable of size 120 Sqmm 3.5 Core laid in trenches or fixed to wall / pole /ceiling as per IS 7098 (part I) including connection cable glands, aluminium lugs etc complete all as specified and as directed. Note : Earth work, brick protection and send cushioning and GI Pipe will be measured and paid separately under respective items.

Supply & fixing of GI Strip of size 25 mm X 4mm as a ring conductor network buried in earth 1 mtr below from surface complete all as specified and as directed by Engr-in -charge.

Supply & fixing of Test point terminal block made of gun metal or phosphorus bronze size 75x75x25mm drilled and screwed including 3 nos. 8mm dia 25mm long hex. head screw complete all as specified and directed by Engr-in -charge.

Excavating in trenches, n exec 1.5 m wide and n exec 1.5 m depth , for foundation ,etc or for shafts ,wells, cesspits, manholes, pier holes ,etc n exec 10 sq m on plain and n exec 1.5 m in depth and getting out soft or loose soil.all as specified and as directed by engr-in-charge.

Returning, filling in, including spreading,leveling, watering and well ramming in layers not exc 25 cm in soft/loose soil complete all as specified and directed by Engr-in-Charge