IITR/EME-17(32)/2023

Amount

Sub-head 'A' (Equipments)

SITC of 'Silent Type' Diesel Generating set having Prime Power Rating of 320KVA/256KW, CPCB IV+ emission compliant, 415 volts at 1500 RPM, 0.8 lagging power factor at 415 V suitable for 50 Hz, 3 phase system & for 0.85 Load Factor and consisting of the followings:

Diesel Engine:

Diesel engine 6 cylinder in-line 4 stroke water cooled, electric start, developing suitable BHP at 1500 RPM for above output of alternator tested at 50 Degree C, 50% RH & at 1000 Meter MSL and conforming performance class as per ISO8528-G2 with prime rating, turbo charged air cooled, DEF as per AUS32 (premix) as per ISO22241, starting system 24V DC with new electronic fuel system, exhaust after treatment and in cylinder solution to meet stringend emission norms, capable of taking 10% over loading for one hour after 12 hours of continuous operation. The engine will be fitted complete with all the required accessories.

Engine mounted Instrument Panel Fitted with microprocessor based generator set monitoring, digital metering and control system with LCD display for the following :-

(i) Local Start/ Stop

(ii) Remote Start/Stop

(iii) Mannual, Auto operation facility

(iv) Compatable, with AMF facility

(v) Metering Engine Parameters

(vi) Metering Electrical Parameters

(vii) Engine protection system

(viii) Alternator Electrical protection system

(ix) Battery voltage 24 V DC & charging indication

(x) Intuitive operator interface which includes LED backlit graphic display and generator sets status LED lamps.

(xi) Data Logging engine hours, control hours and upto 5 recent fault codes.

(xii) Mod Bus interface (RS485RPU)

(xiii) Maintenance due alarm based on engine run time and due date

(xiv) Fuel and DEF level visual display

Alternator

Synchronous alternator rated at 320 KVA, 415 volts at 1500 RPM, 3 phase 50 Hz, AC supply with 0.8 lagging power factor at 40 Degree C, 50% RH & at 1000 Meter MSL. The alternator shall be having SPDP enclosure, brushless, continuous duty, self-excited and self-regulated through AVR conforming to IS/IEC: 60034-1 suitable for tropical conditions and with class- F/H insulation, compact desighn with sealed bearings and impregnavion on all wound components for better strength and lesser maintenance.

MS Base Frame mounting arrangement :

Both the engine and alternator shall be mounted on a common suitable base frame made of MS channel with necessary reinforcement with integral fuel tank and DEF tank provided with drain plug, air vent, inlet and outlet connection and provision for cleaning. and vibration isolation arrangement as per recommendations of the manufacturer.

Fuel Tank

Daily service fuel tank not less than of 500 liters capacity and DEF tank capacity of 60 ltrs fabricated out of 2/3 mm thick M.S. sheet complete with all standard accessories and fuel piping between fuel tank and diesel engine with MS class 'C' pipes of suitable dia. Complete with valves, level indications & accessories as required as per specifications.

Exhaust System

Dry exhaust mainfold with residential grade exhaust silencer inside canopy with rain cap suitablaily obtimiased to meet stringent noise limit and catalytic convertor.

Starting System

12V/24V DC starting system comprising of starter motors: voltage regulator and arrangement for initial excitation complete with suitable nos. of batteries of suitable AH capacity with leads as required as per OEM specifications.

Acoustic Enclouser

Accoustic and weather proof enclosure with arrangement for fresh air intake for cooling of the engine & alternator, extraction, discharging hot air in to the atmosphere, desighn to meet stringent MoEF/ CPCB- IV norms. The enclosure should have fire- retardant grade ecostic insulation material (rockwool) complying to IS 8183 and also having external fuel and DEF filling provision.

Total amount for item No. 1.01 to 9.01 above

SITC of LT panel floor mounted type, made of 16 gauge CECA sheet, powder coated paint, dust and vermin proofe suitable for 1X320 KVA silent type DG set complete with set of CTs for metering & protection and energy analyser to indicate currents, phase and line voltages, frequency, overload and short circuit protection, restricted earth fault, control cabling from panel to diesel engine, comprissing of the following items:-

Incomer- 630 Amp., 4 pole MCCB-50KA with thermomagnetic release for O/C & E/F and shunt trip. - 01No.

Busbar- TPN, aluminium conductor busbar of 1000A capacity, dully insulated and supported on DMC supports. -01Set

Instrument-CT Coils - 600/5A, LED Indicating lamps RYB for incomming supply, load on mains and load on set, multi fuction meter, Protection MCB's for instruments - 02 Sets

Outgoings- 630A, 4 P, onload changeover

Total amount for item No. 11 (11.01 to 11.04) above

Supplying and fixing exhaust gas piping of suitable dia. Welded black MS, 'B' Class pipe conforming to IS:3589 cut to required lengths and installed with necessary bends, supports and clamps, anti-vibration mountings, insulation of exhaust system with mineral wool/ Rockwool, 50 mm thick wiremesh & aluminium cladding etc., as required as per specifications.

Exhaust piping support structure made off MS angle/ Chanel of size 150 x 75 upto 6 meter hight and as per drawing and guidence of Engineer in charge during the execution of work with painting and grouting 1.5 meter deep into the ground with contreate and cement etc as required.

Sub Head 'B'

Supply, Laying and end termination of one number PVC insulated, 2.5 sqmm x 4 core copper conductor, armoured control cable, in the existing pipe as required. Make Havells/ KEI/ Pollycab.

Supply of one number PVC insulated, armoured XLPE aluminium conductor power cable of 1.1 KV grade.

300 Sqmm x 3.5 core, cable

240 Sqmm x 3.5 core, cable

Laying of following sizes, 3.5 core XLPE power cable, 1.1 KV grade in ground after exacavation, sand cushing, protective covering and refilling the trench as required.

Above 185 sq. mm and upto 400 sq. mm

Supplying and making end termination with brass compression gland and alluminium lux for following sizes of XLPE insulated alluminium conductor armoured cable.

3.5 x 300 Sqmm

3.5 x 240 Sqmm

Sub head 'C' (R.C.C Foundation)

Construction of a suitable foundation 6.00 mtr x 2.50 mtr x 0.50 mtr for 320 KVA DG Set, using rainforced cement contreate (RCC) in a 1:2:4 ratio (cement, coarse sand : 20 mm stone aggregate) including cost of excavation, shutring and rainforcement (minimum 243 Kg) over 10 cm thick plane cement concreate (PCC) layer in a 1:5:10 ratio (cement: coarse sand: 40mm thick stone aggregate). Finishing work with cement plaster mix in a 1:6 ratio. Additionally installing M.S bidding upper perimeter of the foundation, using angle section 50 x 50 x 5 mm. Job also include disposal of surplus building material complete as per instructions of the site engineer.

Sub Head 'D' (Earthing)

Earthing with copper earth plate 600mm x 600mm x 3mm thick including accessories and providing masonry enclouser with cover plate having locking arrangement and watering pipe of 2.7 mtr long etc with charcoal and salt as required. (For Natural Earthing)

Providing, Laying & Connection 25mm x 5mm Copper strip, with brass nut bolt and washer etc in existing G.I Pipe from earth electrode in ground, as required.

Earthing with G.I earth plate 600mm x 600 mm x6 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 metre long etc. with charcoal/ coke and salt as required.

Supplying and laying 32mm x 6 mm G.I strip at 0.50 metre below ground as strip earth electrode, including connection/ terminating with G.I nut, bolt, spring, washer etc. as required. (Jointing shall be done by overlapping and with 2 sets of G.I nut bolt & spring washer spaced at 50mm)

Awasthi Electric Works

Sanjay Electric Company