WBPWD/SE/SWEC/NIQ55/2023-24/ Retender

Amount

Supply , delivery at site on foundation , commissioning of 62.5 KVA, 415V, 50Hz, 3Ø silent new DG Set, comprising of Engine, alternator, separate AMF panel, Base frame, Fuel tank, Battery, CPCB-II approved Engine & Acoustic Enclosure having following specifications :-

Engine:-

Make: Cummins/Volvo/Caterpiller/MTU Force /Mitshubishi/KOEL /Greaves / Ashok Leyland / Mahindra

Engine Type : 4 or 6 Stroke Diesel Engine

MoEF certified power : 80 BHP or Higher

Duty : PRIME

Cooling : Water cooled with radiator

Cylinder : 3 or Higher

Aspiration : Turbo Charged

Type of Governor : Electronic

Fuel Tank Capacity : Minimum capacity 150 Ltrs.

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 : 16 Ltr./ Hr. or Less

Overload Capacity : 10% overload for one hour for every 12 hours continuous 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 over speed indicator, Battery charging and low battery indicator

Exhaust Silencer : Residential Type

Starting system : 12V./ 24 V. 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/ Leroy Somer/ Crompton Greaves

Rating : 415 V., 3Ph. 50 Hz., 62.5 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 3%

Total Harmonic distortion in output waveform : < 5%

AMF Panel

Cubical type floor mounted AMF panel made from 14 SWG Sheet Steel, duly pretreated, powder coated painted and aesthetically finished, suitable for controlling of 62.5 KVA DG set having following specification/features.

i)2 No. 100 A AC1 duty, 4pole power contactor and U/V release etc. [make: ABB, Legrand, Schneider]

ii) 2 Nos. 100 A, 3pole, 50 KA MCCB with microprosser based LSIG protection. [make: Legrand]

iii) In Built By-Pass switch for rated capacity

iv) On -delay timer for load change over

v) On-delay timer for engine shut off

vi) Engine On-Off switch (Push button type)

viii) Minimum five number indicating lamps to indicate 'mains ON', 'load on mains', Set running', 'load on set' and 'battery charger on'.

ix) Audio visual alarm for 'Low lubricating oil pressure', 'High water temperature, Start failure', and DG over load'.

x) Microprocessor based relay with composite meter for digital display of following.

Generator voltage/AC Mains voltage.

Generator Current in all phases

Frequency

Power Factor

Energy

Indication for alternator supply

Running time indications number of hours of operation and service intervals, service due indications

The AMF panel must be designed to ensure trouble free performance and ensure switching over Electrical Load to DG within 15 (fifteen) second from the instant of mains failure.

Acoustic Enclosure

The DG set should have integrated acoustic enclosure at the manufacturing state itself. High quality acoustic 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.

Supply & delivery and pouring including transportation of HSD oil

Supply & laying 2.5 sq. mm. 10 core multi core multistrand PVC insulated flexible Cu cable in uPVC / GI pipe from DG to separate AMF panel. [Gloster/ Polycab/KEI / Havells/RR Kabel] [Bidder should visit the site]

Extending the exhaust system with Supply & installation of MS 75 mm dia 5 mm thick MS pipe with covering of glass wool insulation and wrapping of 24 swg Al sheet of suitable size dia with necessary holding & hanging structure arrangement from ceiling/ wall with 5 mm thick ms conical shape canopy arrangement for rain water protection on top. internal pipes should be welded with each other & necessary providing of MS bend of same dia with wrapped and fabricated as per internal pipe lying with necessary asbestor rope of 18 mm dia thoroughly wrapped on MS pipe over that glass wool covering as per direction of EIC [Bidder should visit the site]

Construction of foundation suitable for erection of the 62.5 kVA DG set approx 3.4 M (L) x 1.8 M(W) x 0.46M (H) above GL and 0.9 M under GL or as per manufacturer standard specification with Ordinary cement concrete mix. 1 : 5 : 3 : with graded stone chips of 20 mm down pakur variety laying concrete base ( 1 : 3 : 6 ) using 40 mm down stone metal & single brick flat solling of picked jhama brick incl. at shuttering work by 25 mm to 30 mm thick wooden plank also , reinforcement with 10 mm dia steel TMT bars atleast 200 KG total , this rate are incl. all materials , labour charges & carrying etc. (suitable for 62.5 KVA DG set). Including Bricks stair of (3 steps atleast). (step height 6inch, wedth 4.5 feet)- 2 Sides as per direction of E-in-Charge and manufacturer recommendation.[Bidder should visit the site]

Supply & delivery 1.1 KV grade 4 Core 50 Sqmm PVC/A. XLPE insulated aluminium armoured cable [Gloster/ Polycab/KEI / Havells/RR Kabel] [Bidder should visit the site]

Laying of one No. 4 Core 50 Sqmm cable 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

Supplying and fixing compression type gland complete with brass gland, brass ring & rubber ring for dust & moisture-proof entry of XLPE/PVC armoured cables & 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 for 4 Core 50 sqmm cable

Supplying & fixing 40 mm medium gauge GI Pipe ( ISI-Medium) Protection with necessary fittings and jointing metarials as required.

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: By ISI-Medium GI pipe

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.

Connecting the equipments to earth busbar including S & F GI (Hot Dip) wire of size as below on wall/floor with staples buried inside wall/floor as required and making connection to equipments with bolts, nuts, washers, cable lugs etc. asrequired and mending good damages No. 4 SWG

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

Earthing with Copper plate (610x610x3mm size) having weight of 9.84 Kg and 1 No. 25x5mm Copper strip (3.20 mt long) & 1 no. 6 sqmm PVC insulated stranded Copper wire (4 Mt long) incl. S & F 15 mm dia GI pipe (ISI-Medium) protection (4 mt. long) to be fillied with bitumen, partly under the ground level & partly above ground level to an average depth of 3.65 Mts. below the ground level and restoring the surface duly rammed incl. providing 3.0 mt long, 25 mm dia GI pipe (ISI-Medium) for periodic treatment, incl. providing masonery enclosure on the top of the earth electrode of overall size 86.36x86.36x46cm 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 36.56x35.56cm with locking arrangement, GI reducer and treatment of soil by using salt & charcoal or coke for plate electrode.

Supplying & fixing earth busbar of copper bar flat 50 mm x 5 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.

Connecting the equipments to earth bus bar incl. S&F copper strip of size 25 x 5 mm in UG trench with necessary connection as per direction of EIC.

Terms & Conditions

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

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

(iii) Necessary manufacturer's test certificate for Diesel Engine, Alternator etc. Will have to be submited in triplicate 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 the competent Authority (As per CPCB-II).

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

(vi) The entire set must be warranted at least 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) During warrenty period if any discripency occurs regarding performance of the DG set that has to be attended within 24 Hrs. sharp

M/S R. K. ENTERPRISE

Sohum Industrial Sales Corporation