Providing and installation of 1 o. 50KVA DG set in office of B and R Division HPPWD at Dhami Shimla.

Supply of 50 KVA CPCB-4+ DG Set Sound Attenuated DG set comprising of Minimun 4 cylinder engine ,4 stroke water cooled coupled to 415 Volts 50 KVA alternator mounted on a common Base frame along with other accessories i.e. AMF Panel, Fuel tank, Batteries with leads complete in all aspects.

DIESEL ENGINE : - ECO, FRIENDLY (CPCB 4+ norms compliance ).

Manufacturer:- Cummins (or its equivelant).

4 cylinders, vertical 4 stroke cycle, water cooled turbo charged , developing minimum 74 BHP at 1500 RPM under NTP condition of BS:5514. The Engine shall be provided with electrical starting arrangement & shall give the electrical output of 50 KVA / 40 KW at 0.8 power factor, 415 V at the alternator terminal, complete with other accessories of the engine as under:-

COOLING SYSTEM - Radiator cooled, Engine mounted water pump, Thermostat, Corrosion inhibitor, Self contained piping.

FUEL SYSTEM - Inline fuel pump, Injectors, Spin on type Fuel filters, Self contained piping.

LUBRICATING SYSTEM - Oil pump, Steiner, Lub oil cooler - Plate type, Spin on type Oil filter, Bypass filter, Self contained piping.

AIR IN TAKE SYSTEM - Dry type replaceable Paper element Air Cleaner with restriction indicator, Air intake manifold with necessary connections, Turbo charged after cooled.

EXHAUST SYSTEM: - Exhaust manifold, Stainless steel exhaust flexible coupling, Silencer ( critical Grade ).

GOVERNING SYSTEM - Electronic/Mechanical Governor.

STARTING SYSTEM :- Starter, 12V , DC., Battery charging alternator, With in-built Regulator.

OTHER SYSTEM: - Flywheel, Flywheel housing.

GENSET CONTROLLER :-

Cummins Power Start PSO602 microprocessor based integrated generator set monitoring, metering, protection and control system with built-in torque matched Volts/ Hz overload control.

Single Control for the Genset function :-

Digital Voltage Control, Engine Control, Operator Interface, Protection, Advance Control Function.

Metering-

RPM, battery Voltage, Lube Oil Pressure, Coolant temp., Running Hours.

Protection -

Low lub Oil Pressure, High Water temperature, High/ Low Voltage, Week battery, Over speed, Fail to Crank Fail to start, Sensor failure.

Metering-

3 phase Voltage ( L-L and L-N ), 3 phase current, Frequency, KVA.

Protection -

Under Voltage, Over Voltage, Under/ Over frequency, Over Current, Loss of sensing, Field Overload.

Others :

Battle switch function, Delay Start/ Stop, Configurable Cycle Cranking, Sleep Mode Time.

Alternator :-

Manufacturer:- Stamford (or its equivelant).

New age Electrical rated at 50 KVA, 415 Volts, 50 Hz, 0.8 Power factor, with Voltage regulation + / - 1% all load between no load to full load & factor 0.8 to unit, Speed 1500 RPM.having " H " class insulation. Winding connection will be Star connection having over load capacity 10% for one hour in any 12 hours of operation without exceeding temperature rise limits specified in BS: 2613 or BS: 5000 when corrected to ambient temperature at site.

Bearing :- Long life single bearing.

Enclosures :- Drip proof & screen protected IP-23.

Parallel operation:- All machines shall be suitable for operation in parallel. Damper winding shall be provided to facilitate parallel operation.

The alternator shall be of self-excited, self regulated, self ventilated in brushless design, provided with suitable automatic voltage regulator and shall confirm BS:2613 or BS:5000 and shall give rated output at NTP condition.

One set of essential accessories shall be supplied with each D.G. set. This set of accessories shall comprise of the following:-

Base rail with integral fuel tank, One no. sub base tank of 163 liters capacity for DG set, For electrical control circuit of 12 volt DC, 1 Nos. batteries of 12 volts 95 AH each (dry and uncharged ) of Pulse lite/ Exide/Amaron make with battery leads for electrical starting of DG set.

CONTROL PANEL FOR DG SET :

The Generator control shall be indoor type, floor mounted, dust and vermin proof in sheet steel construction. The panel shall have doors at the front and back for proper maintenance. The panel shall have steel channel fabricated kick-plate and bolted type cable gland plate fitted at the bottom. The panel shall be constructed from 2 mm thick steel sheet. All the joint shall have proper gasket.

Monitoring and control devices shall be housed on the front door. Generally the construction of the panel will be such that various equipments for application will be housed in compartment. All incoming and out going power and control cables shall be from the bottom.

The panel will be equipped as follows :-

Incomer - 1 no. 3-pole, 100 Amp MCB, Set of CTs for metering.

Indication Lamps :- Genset Running, Set on Load, Phase Indication.

SOUND ATTENUATED SYSTEM

Thickness of sheet - 16 - G

High class sheet metal fabricated enclosure for reducing the noise level of DG set & also acts as a weather proof housing. Genset will be a integral part of acoustic enclosure and whole construction will be on multi-fold sheet channel & ISMC section. Enclosure construction is fully bolted keeping in view the major service requirements all doors are provided with specially designed hinges and lockable handles, Battery, Fuel tank is housed inside the enclosure.

ACOUSTIC MATERIALS :-

Rock wool in the form of slabs of 100 mm thickness and 96 KG/ Metric cube density Specification of Rock wool conform to IS 8183 ). Further to increase the life of Acoustic material resin coated fiber glass cloth is provided on exposed surface of Rock wool slabs and the panels are supported by perforated sheet.

VENTILATION

Acoustic enclosure is designed in such a way that there are no hot pockets around engine and it is provided with suitable designed engine radiator which does not allow the temperature to rise more then 70° C above ambient temperature.

To achieve optimal output and minimum sound level from the DG set, suitable openings with acoustic hood are provide for increasing the inflow of air required for combustion & forced ventilation. Air intake system as per the recommendations and engine requirement are provided.

Acoustic hoods with noise splitters provided to block and reduce the sound leakage.

The sound control system designed to supports the sound level to 75 db maximum at 1 meter distance in open free field environment as per ISO 8528 part 10.

SILENCER

Specially designed low noise silencer is provided. Silencer and engine exhaust outlet, Connected with flexible SS bellow.

VIBRATION ISOLATION:-

To avoid transfer of vibration from genset to enclosure & surrounding specially designed vibration isolators are used.

Complete job of Supplying, Installation, testing and Commissioning of 50 KVA/40 KW DG Set, including Price of DG set, Price of AMF Panel, Installation chargers Cable connection etccompletes in all respects: -

Providing and laying in position reinforced cement concrete 1:2:4 ( 1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size ) in foundation of DG set etc including form work etc as required (excluding reinforcement )

Providing & Laying of one number aluminium conductor, PVC insulated and PVC sheathed armoured/ XLPE power cable, 1.1 KV grade of following sizes on wall surface as required.

Armoured cable 50 sq. mm (3.5 core)

Armoured cable 25 sq. mm (3.5 core)

Earthing with copper earth plate 600 mmx600 mmx 3 mm thick, including accessories and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 metre iong etc. with charcoal/ coke and salt as required.

Providing and fixing 25mm x 5mm copper strip on surface or in recess for earth connections etc. as required.

Supply and fixing of Six Core 2.50 sq mm (Unsheathed) Signal Cable and Inner Cores Red,Black,yellow,Blue,Green,white,Distinguishable strip/spial on base colour and yellow/green is for earthing.colour of sheath-Black complete in all respect includuing making connections,testing etc. as required. Make:- Finolex, havells,or as approved by Engineer-in-charge.

Supplying and fixing TP&N copper bus-bar chamber suitable for 415 volts capacity with 4 No. copper strip bus-bars each of length and x-section suitable for following current carrying capacities, enclosure made of sheet steel having thickness of 1.6mm, dust protected, duly powder painted with detachable gland plate and other accessories including drilling holes on the board, making connections, earthing etc. as required.

63 A Copper Busbar Chambers 15" (SS Enclosure)

Providing and fixing following rating and breaking capacity 4-Pole MCCB 16 /18 KA THERMAL RELEASE HAVING (O/L & S/C) PROTECTION WITH SPREADER TERMINAL & ROH, in the existing cubical panel board including drilling holes in the cubical panel, making connections, etc. as required. Make: L&T, Schneider, ABB, C&S etc.

MCCB 63 Amps.4Pole

Providing and fixing sheet steel encluser suitable for 3P & 4P MCCBs DU/DH MCCBs. Having generous space for cable termination, inbuilt neutral link for TPN system etc. including drilling holes on the existing board, wall or surface as required.make-Havells,ABB,Legrand,L&T,schneider,C&S (Enclosure MCCBs, 63 3/4-Pole)

Wiring for circuit/ submain wiring alongwith earth wire with the following sizes of FRLS PVC insulated copper conductor, single core cable in surface/ recessed medium class PVC conduit as required.

2 X 10 sq. mm + 1 X 6 sq. mm earth wire

Providing, laying, testing & commissioning of 'C' class heavy duty MS pipe conforming to IS 3589/IS 1239 including Welding, fittings like elbows, tees, flanges, tapers, nuts bolts, gaskets etc. and fixing the pipe on the wall/ceiling with suitable clamp/support frame and painting with two or more coats of synthetic enamel paint of required shade complete as required :

Supplying ,installation,testing and commissioning of indoor ( single/door) cubical type L.T main panel.The panel shall be compartmentalized type having space and arrangement for incoming and outgoing cables, ducting, switchgear installation and properly supported compartmentalized bus-bars, interconnection between bus-bars and switchgear with auxiliary bus-bars insulated conductors/strips etc. The panel shall be fabricated from 14G CRCA sheets, base frame 75X40X4MM angle duly painted with primer and two coat of grey powder coated paintand,and should be complete with providing , fixing & connection etc. The following switch gear and other accessories as detailed below:-

The panel shall be of cubical type,Indoor type, Single door, Floor mounted , fixed type, free standing single front, dust proof & compartmentalized Main L.T Panel made out of M.S. CRC Sheet 16G, Base Frame duly painted with Siemens Grey Powder Coated Paint as per Specification Approximate Size (H) 750MM X (W) 700MM X (D) 200MM.

Assembling of 100A 4Strip Aluminium Busbar (Horizontal/ Vertical) & Earth strip throughout the lenth of panel (current density of Copper Busbar shall be 1mmx1mm=1.66 Amp.) Copper shall be Electric Grade E-91 , Busbar supports shall be DMC epoxy Insulators. All Busbars Links shall be covered/ insulated with Heat Shrinkable sleeves of coloured coded Red, Yellow, Blue & Black.

Assembling of Aluminium solid/ Copper flexible wire interconnection Busbar to MCCB/O.L.C.O.S. & MCCB to field side for Cable termination duly covered/ insulated with Heat Shrinkable sleeves of coloured coded Red, Yellow, Blue & Black. All Interconnections of fields side are supported by conical, L & Finger type insulators of adequate size to support & sustain the weight of cables.

Providing , testing and connectoin of Control Wiring with Copper flexible Wire (size of control wire shall be 2.5 sq. mm Copper flexible for C.T. Circuit & 1.0 sq. mm for Control Wiring) with thimbles printed sleeves, tie & belt etc.

The cost of panel should be complete with Assembly charges of 100A 4 strips Busbar (horizontal/vertical & earth strip throughout the length of panel (current density of aluminium busbar shall not be less than 1.0 amps/ mmsq. .Aluminium shall be electric grade E-91E,busbar supports shall be DMC eposy insulator .All busbars links shall be covered /insulated with heat shrinkable sleeves of coloured coded Red,Yellow,Blue& Black.Approximate size of panel (H) 750MM X (W) 700MM X (D) 200MM. .Assembly charges of aluminium copper solid /copper flexible wire interconnections in ACB/SWITCH & ACB/MCCB to field side for cable termination duly covered/insulated with heat shrinkable sleeves of coloured coded Red,Yellow,Blue& Black.All interconnections offields side are supported by conical L & Fingers type insulators of adequate size to support sustain the weight of cables .control wiring with copper flexible wire (size of control wire shall be 2.5 sqmm copper fexible for CT circuit & 1.0 sqmm for control & 1.0 sqmm for scada wiring) with thumbles printed sleeves,tie & belt etc.Assembly charges of accessories like gasket,doorlocks,copper flexible door earth legend plates etc. and shold be complete with all accessories as detailed above (12.01 to 12.05 )'The Switchgear & accessories, should be of Schneider, L&T, Siemens, ABB,HAVELLES make etc.