WBPWD/SSEWEC /HED /NIQ-59 /2025-26

Supply, delivery at site on foundation & commissioning of 125 KVA, 415V, 50Hz, 3Ø silent new DG Set, comprising of Engine with manual panel, alternator, separate AMF panel, Base frame, Fuel tank, Battery, CPCB-IV approved Engine & Acoustic Enclosure having following specifications :-

ENGINE

Make:Make: Greaves/Kirloskar/Cummins

Model: H6G4DE125

Engine Type : 4 Stroke Diesel Engine

Rated Output : 154 HP or Higher

Duty : Continuos

Cooling : Coolant cooled

Cylinder : 6

Aspiration : Turbo Charged after cooled

Type of Governer : Electronic

Fuel Tank Capacity : Minimum capacity 200 Ltrs. Or Higher

Fuel Consumption at 75% rated Load with Radiator or Fan : 22.4 Ltr./ Hr. or Less

Fuel Consumption at 100% rated Load with Radiator or Fan : 30.35 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: Crompton Greaves /Kirloskar/ Leroy Somer

Rating : 415 V., 3Ph. 50 Hz., 125 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%

AMF Panel

Cubical type floor mounted AMF panel made from 16 SWG Sheet Steel, duly pretreated, powder coated painted and aesthetically finished, suitable for controlling of 125 KVA DG set having following specification/features.

i) 200 A 36KA MCCB with O/L, S/C, E/F protection and microprocessor based protection release , U/V release etc. - 2Sets

ii) In Built By-Pass switch for rated capacity

iii) On -delay timer for load change over

iv) On-delay timer for engine shut off

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

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

viii) 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 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.

Earth work in excavation of foundation trenches of drains, in all sorts of soil including removing, spreading or stacking the spoils within a lead of 75m as directed. The item includes necessary trimming the sides of trenches, levelling, dressing and ramming the bottom, bailing out water as required complete.( Depth of Excavation not exceeding 1500 mm ) [ Page- 1, Item no.- 2(a) of PWD Schedule of Rates, Volume-I of Building Works, 2017 ]

Earth work in filling in foundation trench or plinth with good earth in layers Board a) With earth obtained from excavation of foundation 1/5th of excavated earth [ Page 1, Item no.3(a) of PWD Schedule of Rates, Volume-I of Building Works, 2017 ]

Filling in foundation or plinth by silver sand in layer a) With earth obtained from excavation of foundation 1/5th of excavated earth [ Page- 2, Item no.- 4(A) of PWD Schedule of Rates, Volume-I of Building Works, 2017 ]

Single Brick flat soling of picked jhama bricks including ramming and dressing bed to proper level and filling joints with local sand [ Page- 14, Item no.1 of PWD Schedule of Rates, Volume-I of Building Works, 2017]

Reinforcement for reinforced concrete work in all sorts of structures including distribution bars, stirrups, binders etc initial straightening and removal of loose rust (if necessary), cutting to requisite length, hooking and bending to correct shape, placing in proper position and binding with 16 gauge black annealed wire at every intersection, complete as per drawing and direction.. A)For works in foundation and top of ground floor / upto 4 m i) Tor steel/ Mild steel SAIL/ TATA/RINL. [ Page- 43, Item no.40(a)(i)(I) of PWD Schedule of Rates, Volume-I of Building Works, 2017 ]

Brick work with 1st class bricks in cement mortar (1:4) In foundation and plinth. [ Page- 16, item no.-13(a)-(i) of PWD Schedule of Rates, Volume-I of Building Works, 2017 ]

Plaster (to wall, floor, ceiling etc.) of 10 mm thick with sand and cement with 1:4 cement mortar including rounding off or chamfering corners as directed and raking out joints including throating, nosing and drip course, scaffolding/staging where necessary (Ground floor).[Excluding cost of chipping over concrete surface] [ Page- 189, item no.-1(ii)-(c) of PWD Schedule of Rates, Volume-I of Building Works, 2017 ]

Neat cement punning about 1.5mm thick in wall, dado, window sill, floor etc. NOTE: Cement 0.152 cu.m per 100 sq.m. [ Page- 192, item no.-15 of PWD Schedule of Rates, Volume-I of Building Works, 2017 ]

Filling of HSD Oil for initial refilling as well as for commissioning incl. Cost of transportation

Extending the exhaust pipe with 100 mm. dia MS black pipe (Thickness 4 mm) including connection with the existing silencer attached with the flexible coupler and S&F flange, nuts, bolts & washers etc. & necessary fixing materials etc. as required from DG set upto 2.5 Mts high of the near higher installation with Asbestos rope / glass wool insulation and chicken net and Aluminium fol covering, with end cap with suitable high temperature painting.

S&F special type MS angle iron bracket for supporting exhaust pipe made of 40x40x6 mm. MS angle with nuts, bolts or welding the joints ( For vertical run and horizontal run).

Supply and delivery of best quality oil hand pump with 1" dia PVC flexible pipe (10 mtr. approx.)

Supply and delivery of 100 ltr. Capacity heavy gauge MS sheet barrel

Earthing with 50 mm dia GI pipe 3.64 mm thick x 3.04 Mts. Long With TATA-Medium GI pipe as per GS [ 2(a)/G-1]

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) Cl 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. [3(a)/G-2]

Excavation of soil for installation of Earth Electrode and filling & ramming. (For Soft Soil) [1(a)/G-1]

Extra for treatment of soil by using salt & charcoal or coke for plate electrode [3(b)/G-2]

Connecting the equipments to earth busbar including S & F Solid GI (Hot Dip) wire of size as below as per GS

No.-4 SWG [5(a)(i)/G-2]

No.-6 SWG [5(a)(i)/G-2]

Supply & Laying of 1.1 KV Grade 10 Core 1.5 sq.mm PVC insulated. Copper conductor control Cable in partly recessed and partly by shaddle on wall to interconnect DG set with AMF Panel (Gloster / Havells / Plycab/ RR Kable )

Supply & Laying 1.1 KV Grade single Core 95 sq.mm XLPE/PVC insulated. PVC sheathed, steel Unarmoured Al. conductor Cable and conforming to IS: 7098(Part-I):1988/1554(Part-I):1988/ 5831:1984/ 3961(Part-I):1967/ 3975:1970/ 10810:1984/ 3975:1970 /8130:1984/ 3961:1967/ 10418:1982/10810:1984 as amended upto date, in respect of component materials and tests.(Gloster / Havells / Plycab/ RR Kable ) (From DG neutral Earthing)

Connecting the equipments body to earth busbar including S&F 25 mm x 6 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. [5(d)/G-3)]

Supplying and fixing415V, TPN SFU with sheet steel enclosure on flat iron/angle iron frame on wall with nuts bolts etc incl.S&F 3nos.DIN type HRC fuse as per rating.[ Make L& T /Havells/HPL]. [For existing industrial panel]

Supplying and fixing 240V DP Sheet steel Main Switches on flat iron frame on wall[ Make:Havells/Standard/HPL].

Supplying and fixing 415V, TPN on load front operated Changeover switch open execution type in SS enclosure/cubical with nuts bolts etc

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 :

4Core 25 Sq. mm [7(c)/F4 ]

4Core 95 Sq. mm [7(b)/F4 ]

Finishing of the XLPE/PVC insulated armoured cable ends by soldering with cable sockets and insulated tapes etc., including supplying sockets, soldering materials, tapes etc. and making connection to switch, BDB and BBC etc.

4Core 25 Sq. mm [ 8(b-xiii) /F5]

4Core 95 Sq. mm [ 8(xviii) /F5]

Supply of 4/3.5 Core XLPE Insulated & Sheathed Armoured Aluminium Conductor cables for Working Voltage up to 1100 Volts of following sizes [ Make-GlosterI/Polycab/RR as approved by E.I.C]

4 Core 25 Sq. mm (For existing power DB)

4 Core 95 Sq. mm

Laying of cable upto 2 core 25 sqmm on wall/surface incl. S & F MS saddles with earthing attachment in 10 SWG GI (Hot Dip) Wire, making holes etc. as necy. mending good damages and painting [ 2(a)/ F- 1 ]

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 [ 1(b)/ F- 2 ]

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 [ 2(e)/ F- 1 ]

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