WBPWD/SE/SWEC/NIQ26/2023-24

Amount

Supply , delivery at site on foundation , commissioning of 500 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 Stroke Diesel Engine

MoEF certified power : 600 BHP or Higher

Duty : PRIME

Cooling : Water cooled with radiator

Cylinder : 6 or Higher

Aspiration : Turbo Charged

Type of Governor : Electronic

Fuel Tank Capacity : Minimum capacity 990 Ltrs.

Fuel Consumption at 75% rated Load with Radiator or Fan : 82 Ltr./ Hr. or Less

Fuel Consumption at 100% rated Load with Radiator or Fan : 108 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., 500 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 500 KVA DG set having following specification/features.

i)2 No. 630 A AC1 duty, 4pole power contactor and U/V release etc. [make: ABB, Legrand, Schneider]

ii) 2 Nos. 630 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

Supplying and fixing exhaust gas piping (200MM Diameter ). 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 and aluminium cladding etc., as per requiremement of pollution control norms and required as per direction of Engineer-in-Charge and manufacturer recomendation.

Fabrication and fixing of MS angle ladder type structure fabricated out of 50mm x 50mm x 6mm angle iron for support of exhaust gas pipe of existing DG set to the required height including grouting in 1:3:6 (1 cement : 3 graded stonenaggregate: 6 coarse sand) cement concrete in ground and support on building, welding, grinding, painting etc. as required. (The measurement shall be made in running meter of MS angle iron only and converted to weight in Kg)

Providing cement concrete foundation suitable for erection of the 500 kVA DG set with 1:2:4 (1 cement : 2 course sand : 4 graded stone aggregate 20 mm nominal size)[M20 grade ] including excavation, providing base concrete with 1:5:10 cement concrete, required centering/ shuttering, finishing the exposed portion etc. as reqd. ( Item will be paid based on measurements for 1:2:4 CC, but excluding the 1 : 5: 10 leveling course of base concrete) as per direction of E-in-Charge and manufacturer recommendation.

S & Delivery of 200 Ltr. Capacity Container made of heavy guage M.S. Sheet container.

S & Delivery of best quality oil hand pump with 1” dia PVC flexible pipe (12’ ft. approx)

Supply & provide of 5 mm thick ms conical shape exhaust hood on top of MS EXHAUST pipe extention.

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

Sohum Industrial Sales Corporation

NARAYAN CHANDRA DAS