Spl repair Replacement of 01x500 KVA DG Set against BER under GE Brichgunj at Brichgunj Mil Stn, Sri Vijaya Puram

Supply, installation, testing and commissioning of company assembled with acoustic enclousure (SILENT) diesel driven engine, silent DG set of capacity 500 KVA (400KW) duly certified by agencies/lab designated by CPCB 4+ latest norms for noise and pollution level (compliance with CPCB 4 + Norms or any updated norms) and in cylinder solution to meet latest emission norms CPCB 4+, 3 phase, 4 wire of 415 volts, 50 Hz, with ALTERNATOR, AMF Panel complete, All the Major components the engine alternator, after treatment system, control system and canopy shall be designed as per IS / IEC. The exhaust after treatment / the emission limits as per central pollution control board (CPCB) latest regulation / norms (NOx +HC < 0.67, CO < 3.5 ,PM < 0.2 & smoke limit < 0.7 ) remove emissions from the engine exhaust for reducing emissions, first fill up of lube oil and coolant including suitable No and capacity of batteries alongwigh PCC foundation as per manufacturers instruction , Engine and alternator shall be mounted on a common MS fabricted base frame with AVM pads. Acoustic Enclousure shall meet Mo EF / CPCB norms of 75 dB@ 1 Mtr at 75% load. complete all as specified. Note : Silent DG Set will be factory assembled of reputed manufacturer. Microprocessor based controller for generator set monitoring, metering and control system with LED display, AMF function, electronic governor. Engine metering : Oil pressure, engine temperature, standing battery voltage, engine running hours, AC Alternator metering : L - L voltage, and L - N voltage, current, KVA, frequency, kwh, PF etc. Engine Protection : - Low lube oil pressure, high / low coolent temperature, battery high / low / weak volts, fail to crank / start sensor failure, cranking lockout, low fuel level. AC alternator protection : - Over / under voltage, over / under frequency, loss of AC sensing, over speed, over current, KW overload. (Cont --2--)

ALTERNATOR:- Self exciting, self regulating brush less alternator conforming to IS/ IEC 60034-1 rated for 500 KVA continuous at the speed of 1500 RPM at 415 volt, 50 Hz, 3 phase, 4 wire system with advance electric voltage regulator to ensure high voltage accuracy within +1 % with class 'H' insulation and coupled with engine though flexible coupling and comforming to IS : 4722. AMF Panel Supply installation, commissioning & testing for AMF control panel, with 12 volts DC system suitable for 500 KVA DG set, with and including internal wiring , floor mounted type, totally enclosed made out of MS CRCA sheet, 2 mm thick and applying two coat of synthetic enameled paint of approved colour over a of coat red oxide primer complete all as specified and directed. The panel shall be of suitable shape / size & design as approved by Engr- in charge. Note:- (i) DG Set as mentioned in item Ser No 01 along with Alternator, Control & Meeting Circuit and AMF Panel with detailed technical specification, wiring, circuit diagram duly indicating various spares (makes/capacity) along with bill of materials shall be got approved from the Accepting officer before placing order to the firm.

M & L for PCC plateform 200mm thick (1:2:4) type B-1 using 20 mm graded aggregate and brick work in CM 1:4 all around the foundation including finishes all as directed by Engineer-in-Charge for resting of DG set and sound proof enclosures.complete all as specified and directed.

M & L Removing the existing DG set of the cap 500 KVA by the use of hydrolic crane or manpower from existing foundation inside the power house buildig to outside the the power house in due premises of power house as directed by Engr - in -Charge

M&L, for Earthing complete with Galvinised steel earth plate electrode of size 60cmx60cmx6mm thick buried directly in ground (earth pit not less than 2.25m deep below the normal ground level) with top edge of plate not less than 1.5m below normal ground level connected to galvanised strip 32 x 6mm as earth lead by means of bolts, nuts, washers and check nuts made out of copper earth plate all as shown on Electrical Plate No. 3 of SSR Part-I including testing on completion complete all as specified and directed. Note 1: The unit rate shall also include for earth work in any type of soil, PCC (1:3:6) type C1 chamber, RCC 1:2:4 type B-1 using 20mm graded stone aggregate, 50mm thick RCC cover slab reinforced with 6 Nos of 8mm dia TMT bars both ways, 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 SSR Part-II.