WBPWD/EE/JED/eNIQ6/2023-24

Amount

Supply, delivery at site on foundation of 82.5 KVA, 415V, 50Hz, 3Ø silent new DG Set, comprising of Engine with mannual panel, alternator, Base frame, Fuel tank, Battery, CPCB-II approved Engine & Acoustic Enclosure having following specifications :-

ENGINE

Make : Cummins/Volvo Eicher/Cat (by Caterpillar) / Kirloskar Green/ Ashok Layland/ Greaves Power/Mahindra Powerol as approved by E.I.C

Engine Type : 4 Stroke Diesel Engine

Rated Output : 110 HP or Higher

Duty : PRIME

Cooling : Liquid Cooled

Cylinder : 4 or Higher

Aspiration : Turbo Charged, Charge Air Cooled

Type of Governer : Mechanical/Electronic

Fuel Tank Capacity : Minimum capacity 150 Ltrs. Or Higher

Fuel Consumption at 75% rated Load with Radiator or Fan : 14 Ltr./ Hr. or Less

Fuel Consumption at 100% rated Load with Radiator or Fan : 19 Ltr./ Hr. or Less

Overload Capacity : 10% overload for one hour for every 12 hours continious running at full load or better

Engine instrument Panel : Consisting of starting switch with Key, Lube Oil Indicator, water temperature Indicator, RPM indicator and hour meter.

Safety Controls : Emergency Stop, Low Lube Oil Pressure warning/ Shutdown, High Engine Water Temp. warning/ Shutdown, Sensor failure Indicator, Engine overspeed indicator, Battery charging and low battery indicator

Exhaust Silencer : Residential Type

Starting system : 12V. starting system complete with starter motor, charging alternator with rectifier and Cutout as per manufacturer standard.

Battery : Lead Acid, Low Maintenance or SMF and conforming to relevant IS Specification with Low/High Battery Voltage and Weak Battery warning

ALTERNATOR

Make: Stamford(CGT)/CG/MECCALTE/Cat by (by Caterpillar)

Rating : 415 V., 3Ph. 50 Hz., 82.5 KVA, 1500 rpm

Type : Brushless, self excited and self regulated

Insulation : Class H

Protection : screen-protected drip proof with Min.IP-23 degree of protection

Voltage Regulation (max) : ±1%

Winding connection : Star with Neutral

Total Distortion factor : Less than 1.5%

Total Harmonic distortion in output waveform : < 2%

ACOUSTIC ENCLOSURE

The DG set should have integrated acoustic enclosure at the manufacturing state itself. High quality acoustict enclosure must be certified as per CPCB-II norms.

BASE FRAME

Common iron channel fabricated base frame containing the engine and alternator, mounted on AVM pads and having provision for lifting Hook.

TERMS & CONDITIONS

(i) Rate should be quoted inclusive of all applicable taxes and Duty etc.

(ii) All materials, equipments & accessories must conform to relavent IS /IEC specifications. The DG Set to be supplied must be from the authorized OEM of the respective Engine Manufacturer.

(iii) Nacessary manufacturer's test certificate for Desiel Engine, Alternator etc. Will have to submit in triplicate copy during delivery of the equipment.

(iv) Copy of "Type Approval Certificate" and Certificate of "COP" must be produced at the time of delivery issued from competant Authority (As per CPCB-II).

(v) Circuit Diagram for AMF Panel must be submited from the Manufacturer/OEM.

(vi) The entire set must be warranted atleast 15 months from the date of Delivery/12 months/ 5000 Hrs from the date of Commissioning whichever is earlier. However Engine & Alternator should be warranted of 2 years/5000 Hrs, whichever is earlier.

(vii) Necessary Control cable (12 Core 2.5 Sq.mm stranded armour copper cable) for connecting DG & AMF Panel -- 5 mtrs. to be supplied on Free of cost

S& Delivery of 1.1 KV grade 4 core 95 sq.mm Al/A XLPE cable (Make-Gloster/Havells/polycab)

Supplying and fixing compression type gland complete with brass gland, brass ring & rubber ring for dust & moisture-proof entry of XLPE/PVC armoured cables as below :

4 core 95 sqmm [F-4/7©]

Finishing the end of following XLPE/PVC armoured cables by crimping method incl. supplying and fixing solderless socket (Dowels make), tapes, anticorrosive paste & jointing materials :

3½ core 95 sqmm cable [F-5/ 8(b)(xviii)]

Laying of one No. cable above 35 sqmm and upto 185 sqmm in underground trench 460mm wide x 760mm average depth, with brick protection on the top of the cable with 8 (eight) Nos. bricks per Mtr. including filling the space between the bricks and cable and also the trenchwith shifted soil, leveling up and restoring surface duly rammed. [F-2/1(b)]

Laying of cable above 3½ core 90 sqmm and upto 3½ core 150 sqmm on wall/surface including S & F MS clams with earthing attachment in 2 x 10 SWG GI (Hot Dip) Wire, making hole etc. as necy., mending good damages and painting. [F-1/2(e)]

Supplying & fixing medium gauge GI Pipe ( ISI-Medium) Protection with necessary fittings and jointing metarials as required

80 mm dia [F-6/11(f)]

Excavation of soil for installation of Earth Electrode and filling & ramming.

For Morrum Soil [G-1/1(b)]

Earthing with 50 mm dia GI pipe 3.64 mm thick x 3.04 Mts. long and 1 x 4 SWG GI (Hot Dip) wire (4 Mts. long), 13 mm dia x 80 mm long GI bolts, double nuts, double washers incl. S & F 15 mm dia GI pipe protection (1 Mts. long) to be filled with bitumen partly under the ground level and partly above ground level driven to an average depth of 3.65 Mts. below the ground level as below:

TATA-Medium GI pipe [G-1/2(a)]

Extra for providing masonery enclosure on the top of the earth electrode of overall size 86.36 cm x 86.36 cm x 46 cm deep (below Ground level) complete with cemented brick work(1:6) of 25 cm width duly plastered with cement morter (inside) CI hinged inspection cover of size 36.56 cm x 35.56 cm with locking arrangement, GI reducer including drilling of 46 nos. 12 mm dia holes on the GI pipe. [G-2/3(a)]

Supplying & fixing earth busbar of galvanized (Hot Dip) MS flat 25 mm x 6 mm on wall having clearance of 6 mm from wall including providing drilled holes on the busbar complete with GI bolts, nuts, washers, spacing insulators etc. as required. [G-2/4(a)]

Connecting the equipments body to earth busbar including S&F 20 mm x 3 mm galvanised (Hot Dip) MS flat on wall/floor with GI saddles as required and connection to equipments incl. drilling holes, with bolts, nuts, washers etc. [G-3/5(d)]

Supply & delivery and pouring including tranportation of HSD oil including submission of bill

Supplying and fixing 415V,160A TPN SFU with sheet steel enclosure on angle iron frame on wall with nuts bolts etc incl. S & F 3 nos. DIN type HRC fuse as per rating.(Make L&T) [D-3/4(a)]

Supplying and fixing 415V,160A TPN on load front operated Changeover switch with Sheet Steel enclosure on angle iron frame on wall with nuts bolts etc. (Make L&T) [D-2/3(a)]

Supplying and fixing 415V, 125A TPN SFU with sheet steel enclosure on flat iron/angle iron frame on wall with nuts bolts etc incl. S & F 3 nos. DIN type HRC fuse as per rating. (Make L&T) [D-3/4(a)]

Supply & fixing 415V, 3nos 125A cutout on (2.5ft x 1.5ft) hylem (8mm thick) board on wall with 8 nos MS fastners, screws etc.

Supplying & fixing sheet metal 200A, 415V (16 SWG) Iron Clad Busbar chambers on angle iron frame on wall, incl. earthing attachment and painting as required Dimension of Cu. bars [4 x 20x5mm], Dimension of Sheet Metal Box[500x150mm]– ( As per Drawing no. 470 of PWD Specification Book – May 1991) [D-13/19(b)]

CHAKRABORTY ELECTRIC

SREE KRISHNA ELECTRICAL