SPECIAL REPAIRS TO REPLACEMENT OF 125 KVA BER DG SET AND ALLIED WORKS AT SEWAGE PUMP HOUSE NO-01 AT AFA HYDERABAD

Amount

Supply install testing and commissioning Silent type water cooled Diesel Engine Generating set 415 volts 125 KVA/ nearest available higher size in KVA, 3 phase 0.8 power factor, 50 Hz, 1500 RPM self excited self regulated brushless AC generator including acoustic enclosure suitable for ambient condition at Hyderabad (Dundigal) and confirming to condition under IS 10002, 13364 Part I 1992, BS 5514/5000 with the following :- Make : Kirloskar/ Cummins/ Crompton Greaves

(i) The capacity of Generator set shall be net after all the derating factors as per relevant IS/BS Standards design.

(A). Alternator :- Standard design alternator rated at 125 KVA/ nearest available higher capacity at 0.8 (lag) power factor AC, 3 - phase 4 - wire 415 volts 50 Hz, 1500 RPM, self excited self regulated screen protected drip proof brushless design with winding in pole faces, insulating class 'H' and voltage regulation of + 1% at rated voltage from no load to full load. The alternator shall be confirming to BS 5000, IS: 13364 Part I (1992) and shall be in position to generate supply with frequecy regulation with in + 1% tolerance. The alternator will be suitable for tropical climate.

(i) Insualation class - 'H'

(ii) Temparature rise Class - 'H'

(iii) Excitation : Self Excited

(iv) Regulation performance: The voltage is kept constant with + 1%.

(v) Frequency regulation + 1%

(B) Diesel Engine: - Adequate capacity of Diesel engine water cooled, multi cylinder multi stroke direct injection type to drive independently the 125 KVA alternator considering de-rating factor as per site conditons, directly coupled through flexible coupling, cold starting 1500 RPM, as per relevant IS/BS specifications complete with standard accessories all as specified and required for safe handling and operation salient features of accessories shall be as under:-

(i) Fly wheel with housing

(ii) Cooling system :- Moulded radiator with fan & belts.

(iii) Cooling Water pump : - Centrifugal type belt driven.

(iv) Exhaust System :- Exhaust System complete with exhaust piping of suitable dia with MS pipe medium grade with Turbo charger, Exhaust manifold

Silencer : Residential type

(v) Fuel System :- Fuel injection system with fuel injectors, fuel injection controlled by solenoid switch and governer for 1% speed /frequecy regulation, electrically operated or as recommended by OEM, with suitable fiel filters and connecting hoses.

(vi) Lub oil System :- Lubricating oil filter and tube circulated with suitablly integrated lubricating oil pump.

(vii) Air Intake System :- Air intake Manifold and air filter dry type.

(viii) Governer mechanical type

(ix) Starting System :- Electric Self starter with and including battery charging alternator 12 Volts DC.

(x) Batteries :- Batteries of maintenance free of capacity 12 V, 180 AH- 01 No complete with copper conductor multistranded leads of suitable length from self starter to the battary terminals complete with initial charge and initial fill of electrolyte all as specified. Start and stop push button Ignition key / Switch Radiator with blower fan & first fill of Corrosion inhibitor coolant and oil

(xi) Generator Monitoring Panel : - Comprising of all standard items as per standard manufacturing, iginiton key switch and start / stop arrangement, indications for Engine parametes, hour run meter, RPM meter, Engine oil pressure indicator, water/coolant temperature indicator, Battery volt display.

(xii) Safety Controls : - Engine low lube oil pressure high water temperature and over speeding of engine.

(xiii) Coupling arrangement : - Flexible coupling

(xiv) Accessories :- AVM Pads built- in or separtely mounted to base frames.as per manufacturer Instructions.

(xv) Base Frame : - Made out of ISMC of sturdy design made of MS channel with necessary reinforcement and predetermined holes as per manufacturer.

(xvi) MS/Steel flexible pipe line to and from the fuel tank to the DG Set.

(xvii) Battery Charger shall be provided as per manufacturer guidelines

(xviii) The DG Set shall comply to the emission limits requirement as per Govt of India, Gazette notification No bearing No 595 dated 11 Dec 2013 and No 167 dated 31 Mar 2014. The DG Set shall be complied with all test requirements as stipulated in the gazette notification. All relevant test results from NABL accredited lab shall be produced to GE.

(C) Civil Works :- All civil works including PCC plat form and related foundations including for panel and equipments and making good of disturbed area during installation and commissioning of genset. The depth and size of the foundation and PCC as recommended by the manufacturer however the height of the plinth shall be not less than 450 mm from the ground level.

Note:- The contractor shall arrange for artificial load resistive for testing of DG Set at site and the cost is deemed to be included in the above offer including fuel for testing.

(D) Acoustic Enclosure:- Manufactured by OEM suitable for 125 KVA/ nearest higher size available KVA DG Set.

(i) Tested by NABL approved lab as per CPCB

(ii) It Should be as per latest rules and regulations of Ministry of Environment and Forest and Pollution control board.

(iii) The generating set battery should be inside the enclosure.

(iv) Fuel tank should be inside the enclosure, however, the fuel storage shall be enough for 12 hrs continuous operation. If required contract may arrange outside fuel storage capacity to achieve this

(v) Construction Details/specification are as follows : -

(a) Outer body :- CRCA Sheet of 1.6mm thick.

(b) Doors :- CRCA sheet of 1.6 mm thick

(c) Sound Insulation :- 60 mm thick rock wool(minimum density 64kg/Cum)/ fire resistance foam/puff or as per OEM recommendations to achieve desired decibel of sound level

(vi) The acoustic should be composite in construction and fully assembled integral unit.

(vii) The DG Set should be provided with external Emergency stop push button.

(viii) The enclosure should be suitably internally illuminated by CFL/FTL/LED Lamp fittings.

(ix) The noise level should be 75 dB at 1m under free field conditions.

(x) The acoustic enclosure parts shall be of powder coated after pre treatment process. The base frame should be painted with epoxy based black shade.

Note :- (i) The complete DG Set shall be procured from authorised OEM of the manufacturer of engine. A certificate in this connection shall be submitted to the GE. (ii) Air circulation system to achieve desired inside temperature of acoustic enclosure, if required shall be provided as per OEM recommendation. (iii) The quoted rate shall be deemed to be inclusive of 12 hours test run at site as specified in PS and IS requirements in presence E/M Offr (IEM) detailed by Chief engineer zone, all testing arrangements/ equipments shall be made available by the contractor for tests. (iv) The quoted rate shall be deemed to be inclusive of first fill of lubricant oil, DHPP for 12 hours testing and final successful acceptance test. (v) Anything missed out above but technically required for efficient working of DG Set is deemed to be included in quoted rates.

(E) AMF Panel :- AMF panel shall integrated with the DG set be made out of CRCA sheet 14 gauge powder coated dust and vermin proof totally enclosed and consisit the following: (a) Microprocessor based generator set monitoring and control system consists of 16 Charactor 2 line LCD disply and to monitor operator interface, fault history, alternator data, Engine data, provision for service adjustement and caliberation of DG control functions, Engine controls,engine protective functions, alternative protective functions etc. (b). Instrument fuses and control wiring. (c). Indication lamps for Set running and load on. (d). Aluminium bus bar copper bus bar TPN for 500 Amps for RYB & 250 Amps for neutral complete for in and out terminals wiring with PVC insulated single core copper conductor multistranded wire of 1100 volts grade of suitable capacity including CTs etc. (e). 4 pole MCCBs 250 Amps, 25 KA adjustable type - 02 Nos for DG and Commercial supply control. (f) Digital type tamper proof energy meter with suitable CTs.

Design, supply, erection, testing and commissioning of indoor type LT Panel board suitable for 3 phase 4 wire, 415 volts AC supply and having 4 Nos Aluminium bus bars of rating not less then 400 amps, Spreader link to incoming/outgoing MCCB for termination of incoming/outgoing cable and Aluminium connecting bars of suitable size (R-Y-B-N) for outgoing cables, duly fabricated in a CPRI approved / certified factory having modern fabrication and testing facility which includes at least seven (07) tanks pre treatment facility comprising of de-greasing, rinsing, de-rusting, rinsing, phosphating, rinsing and passivation followed by powder coated painting (thickness not less than 80 Micron) with approved shade of RAL 7032. The feeder pillar shall be provided with suitable Neoprene rubber gasket to make it completely dust and vermin proof and degree of protection not less than IP-52 and general construction conforming to IS : 13947. The feeder pillar shall be made out of 2.00mm thick CRCA mild steel sheet and 2.00mm thick gland plate and having front and rear opening facility with single layer shutter with locking facility and mild steel base frame of size 100mm at bottom, suitable for mounting on the pedestal, The feeder pillar shall be provided with ventilation facility in the form of louvers for better heat dissipation. The feeder pillar shall be comprising of the followings :-

(i) Change Over Switch 250 Amps, front operated, open execution type - 02 Nos Make : Havells (Euro Load) / L&T / Schneider / Legrand

(ii) MCCB 4 pole 250 Amps, 36 KA, 415 Volts, 50 Hz, AC supply, adjustable thermal (80% to 100%) and fixed magnetic release (as incoming) - 02 Nos Make :L&T/Standard /Schneider/Legrand

(iii) MCCB 4 pole 160 Amps, 25 KA, 415 Volts, 50 Hz, AC supply, adjustable thermal (80% to 100%) and fixed magnetic release - 01 No Make :L&T/Standard /Schneider/Legrand

(iv) MCCB 4 pole 100 Amps, 25 KA, 415 Volts, 50 Hz, AC supply, adjustable thermal (80% to 100%) and fixed magnetic release (02 outgoing) - 02 Nos Make :L&T/Standard /Schneider/Legrand

(v) MCCB 4 pole 40 Amps, 16 KA, 415 Volts, 50 Hz, AC supply, adjustable thermal (80% to 100%) and fixed magnetic release (as outgoing) - 01 No Make :L&T/Standard /Schneider/Legrand

(vi) MCB 6 to 32 amps rating 'C' series SPN (as building/area lighting) - 03 Nos

(ix) LED indicating lamps with holder for main supply - 1 Set of 3 (R-Y-B)

(x) Instrumental control wiring MCB 3 Amps - 03 Nos

Excavating in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth for laying cables, pipes etc and getting out in hard/dense soil all as specified and as directed.

Sand cushioning to UG cables (8 cm deep before laying of cable and 15 cm deep over the cable) in trenches including punning thickness up to 18 cm and consolidation, complete all as directed. Note :- Punned thickness shall be considered for payment.

Supply and lay burnt brick sub class ‘B’ modular size laid in trenches as protection to cables complete all as specified and as directed.

Returning, filling in trenches in soft/loose soil in layers n.exc. 25 cm after laying of cables including spreading, levelling, and well ramming complete all as specified and directed.

Removing surplus excavated material (soil) to a distance not exceeding 50 metre and depositing where directed at a level not exceeding 1.5 metre above the starting point complete all as specified and as directed

Supply, laying, testing, commissioning of cable XLPE insulated armoured heavy duty electric cable including end termination with necessary cable glands, lugs etc in trenches/ poles/ walls through pipes etc conforming to IS 7098-1985, ISI Marked (1100V grade) with multistranded aluminiuim conductor, cross sectional area 150 Sqmm 3.5 Core complete all as specified and as directed.

Supply, laying, testing, commissioning of cable XLPE insulated armoured heavy duty electric cable conforming to IS 7098-1985, ISI Marked (1100V grade) with multistranded aluminiuim conductor, cross sectional area 95 Sqmm 3.5 Core including end termination with necessary cable glands, lugs laid in trenches/ poles/ walls through pipes etc complete all as specified and as directed.

M&L for earthing complete with galvanised steel earth plate electrode 60cmx60cmx6.0mm thick, buried directly in ground (earth pit not less than 2.25 mtrs deep below ground level) with top edge of the plate not less than 1.5 mtrs below normal ground level, connected to galvanised iron strip 32×6mm as earthing lead by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No 3 in SSR Part -I 2009 connected to earting test point all as specified complete with excavation & earth work, PCC pit with 50mm thick RCC cover (grade M-15) having suitable handle (10mm MS Rod) 20mm dia GI pipe medium grade ISI marked watering pipe with GI funned with wire mesh 40mm bore GI pipe medium grade ISI marked for protection of earth lead conductor all as specified and as directed and testing on completion. (02 Nos for common earthings for body eathing of Alternator-02, AMF Panel - 02, LT Panel-02 etc)

M & L for earth continuity conductor or main earthing lead fixed to wall as recessed and chasses or burried on ground or drawn in conduit/suitable protection pipe fixed to poles or any indicated situtation for loop earthing as required with 32 mm x 6mm GI flat strip including necessary welding joints/GI nuts and bolts etc complete all as specified and as directed.

M&L for light grade galvanized pipe ISI marked with all fitting ISI marked, laid in trenches, under road or fixing on wall/pole/ crossing nallah etc as cable protection of bore 80 mm complete all as specified and as directed .

Earthing complete with copper earth plate electrode 600x600x3.15mm thick buried directly in ground vertically to a depth of not less than 2.25m below ground level with the top edge of earth plate at a depth of not less than 1.5m below ground level connected to copper earth strip of size 20 x 3 mm as earth lead by means of brazing etc all as shown in electrical plate No 3 connected to earthing test point as specified or indicated including testing on completion. Note : All the joints should be brazed only brass nuts/ bolts/ washers can be used in the test point. (For Neutral point of alternator) Note:- (1) The unit rate shall also include for earth work in any type of soil, PCC (1:3:6) type C1 chamber, pre-cast RCC (1:2:4) type B-1 using 20mm graded stone aggregate cover 50mm thick reinforced with welded steel wire fabric (XPM) weight not less than 4 Kg/sqm, funnel with watering pipe 20mm dia medium grade, GI protection pipe light grade 40mm dia and wire mesh complete in addition to item No. 1(a) to (e) of preamble (notes) under sub-heading earthing, specified on Sl. Page Nos. 422 & 423 of SSR Part-II. 2) Earthing lead and GI protection pipe beyond 7.5m will be measured and paid separately. 3) All the joints should be brazed only brass nuts/ bolts/ washers can be used in the test point.

Supply and Install Copper strip of size 20x3.15mm buried in ground/ fixed in wall with saddles and fixing screw etc complete all as specified and as directed.

Removing the existing BER 125 KVA DG Set Complete including Diesel Tank, LT distribution panel boards etc and transporting the entire plant machineries to AGE E/M Store yard for safe custody complete. Note :- (i) The existing 125 KVA DG Set, Panel board, and other unwanted plinth/ foundations shall be totally demolished to ground level and the debris shall be deposited at a distance of 1000 mtrs and to make good the disturbed floor to match with the existing floor finish all as directed.

MORESHWAR ELECTRICALS CORPORATION

OM SAI POWER SYSTEMS

omsai thermax engineers

ramesh construction co

POWER CONSTRUCTION COMPANY

Dwarka Pershad Radhey Ramanlal