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Tender For providing and fitting of essential items and allied material for snow clearance operation at nathatop sanasar road - supply, testing and commissioning of 48v smps float cum boost automotive battery charger with moveable trolley stand for snow operation at nathatop - sanasar roadgeneral technical requirements for battery charger suitable for 48v vrla type battery1.) type -float & float cum boost charger for vrla type, full wave, full controlled type. 2. ) ratings- 15 a float cum boost for 48v, 150 ah vrla type battery 3. ) ac input- i) voltage 415 vac 10%ii) frequency 50hz 5% iii) phase 3 - phase 4.) d.c.output voltage settings -nominal float fc 48/54.5v (adj. by + 20%, - 5% bc 48/66.5v (adj. by + 2%, - 5%) 5.) output current limit 15a 15a 6. ) power conversion ac to dc by means of three phase full wave, half controlled bridge rectifier consisting of thyristors and diodes. 7.) voltage regulation at bridge output. + 1% of set value for + 10% input voltage variations, 0-100% load variation. 8. ripple voltage less than 3% rms without battery connected. 9. efficiency more than 80% at full load 10. protections (a) input side ac input mccb & elbs with input on/off switch and fuses, contactor (b) output side dc output mccb with output on/off switch and fuses. (c) protection current limit protection, soft start feature, surge suppressor. fast semiconductor fuses for rectifier bridge. (d) control circuit fuses (e) capacitor circuit rectifier hrc fuses. (f) over-voltage cut-back (g) charger over load / short circuit (h) blocking diode 11. controls and switches followings controls and switches are provided in the system 1 ac input source mccbs with interlocking 2 dc output mccb 3 auto/manual float/boost mode selector switch. 4 float and boost voltage variable potentiometers. 5 manual voltage adjustment potentiometer 6 test push button 7 reset push button 8 battery current adjustment potentiometers 9 heater s power supply switch 12. features the following features are provided in the systems: 10 soft start on dc side 11 class-f insulation for all magnetic 12 automatic voltage regulation. 13 automatic changeover from float to boost and vice versa based on current, drawn by battery. 14 filter circuit to eliminate ripple. 15 charger current limit 16 separate battery path current limit. 17 built-in auto phase reversal of operation. 13. meters f.c. b.c. (i)input voltmeter (i) common (ii) input ammeter (ii) input ammeter (iii) output voltmeter (iii) output voltmeter (iv) output ammeter (iv) output ammeter. battery volt meter battery ammeter earth leakage ammeter 14. indications phase on lamps (ii) output on lamp a)phase on lamps (ii) output on lamp. (iii) charger on float led (iv)charger on boost led. 15. annunciation with audiovisual alarms. (i) ac input mains failure (ii) input phase failure (iii) ac under voltage iv) input phase failure v) rectifier fuse failure vi) output fuse failure vii) filter fuse failure viii) dc under voltage ix) dc over voltage x) charger trip xi) capacitor fuse fail xii) output mccb tripped xiii) charger over load xiv) earth leakage xv) dc earth fault xvi) alarm supply fuse failure xvii)battery low condition. v) rectifier fuse failure vi) output fuse failure vii) filter fuse failure viii) dc under voltage ix) dc over voltage x) charger trip xi) capacitor fuse fail xii) output mccb tripped. note : all the alarms shall be provided through electronic display cards. audio alarm through buzzer, visual indication through 10 mm leds & alarm ackn. / reset and led provision is through push buttons. 16. operating ambient temperature surrounding the panel 00 to 500 c 17. surrounding the panel relative humidity. 0-95% non-condensing 18. panel (i) protective grade (ii) cooling (iii)paint ip 42 natural air-cooled smoke grey of iss-692 shade a) average winding temperature rise over ambient temperature b) insulation class c) insulation breakdown voltage. as per relevant iss. f 3 kv for 1 min withstand. 19. cables 1100 v
Tender For supply of goods - element seperator (70 cfm) ccnc no - 24121212, element air filter unigy ccnc no - 88171913, valve check w/orifice bsptx 6mm tube ccnc no - 22380216, element oil filter 4 in dia ccnc no - 39329602, guage pressure 0-300 psig ccnc no - 54772058, switch pressure 125-145 psig ccnc no - 23621592
Tender For supply of regenerative orifice assly. (0.052") to ftrtipl part no 029110200 for ftrtipl make air drye r (short version). [ warranty period: 30 months after the date of delivery ]
Tender For supply of regenerative orifice assly. (0.0625") to ftrtipl part no 029110100 for ftrtipl make air dry er (long version). [ warranty period: 30 months after the date of delivery ]
Tender For bid to ras supply of engineer inventory - sluice valve for water works purposes (50 to 1200 mm size) (v2) as per is 14846 (q3) , prelaminated particle boards from wood and other lignocellulosic material (v2) as per is 12823 (q3) , casing and caping pvc 25 mm , call bell ding dong , lamp holder angle batten type , casing and caping pvc 20 mm , cable lugs aluminium 50 sqmm , cable lugs aluminium 70 sqmm , cable lugs aluminium 95 sqmm , distribution board 12 way spn double door , pvc flat cable aluminium condutor twin core 6 sqmm , tape insulation 25 mm x 25 mtrs , cable lugs aluminium 35 sqmm , cable lugs aluminium 185 sqmm , cable lugs aluminium 25 sqmm , distribution board 4 way spn double door , cable lugs aluminium 300 sqmm , modular switch 6 amp , water meter 40 mm , water meter 150 mm , water meter 100 mm , spindle made out of brass suitable for 150 mm dia sluice valve , water meter 50 mm , water meter 80 mm , looking mirror 450 x 600 x 5 mm thick , water meter 20 mm , liquid soap dispensear , gi union 80 mm , hydraulic door closer , roller bearing for driving end of 220 hp mortor beadubg no 320 nu , gi union 50 mm , meter box suitable for single phase electric meter , gi tube 15 mm , rowell plug 38 mm 100 nos in pkt , spindle made out of brass suitable for 80 mm , jumper valve brass with plastic washer for pillar cock 15mm , gi tank nipple 15mm , cp curtain rod 25 mm dia , grease for pump and motor bearings limtom grease 40 to 30 , plywood 7 feet x 3 feet x 12 mm , ply wood 8 feet x 4 feet x 6 mm bwp grade , brackets for fixing wash hand basin ms 375mm long , m seal , gi union 40 mm , beta valve 15 mm , gi union 25 mm , gi union 20 mm , gi union 15 mm , butt hinge ms 75 mm , sythetic enamelled paint redoxide 04 ltr container , gi socket 15 mm , gi bend 80 mm , gi elbow 20 mm , patch mate road repair material , gi elbow 80 mm , gi tee 20 mm , paint enamlled smoke grey , casing n caping nail 100 nos in pkt , oil bound distamper cream colour 5 ltr container , gi bend 40 mm , gi elbow 15 mm , gi tee reducer 25 x 15 mm , gi nipple 15 x 150 mm , flexible pipe 25 mm dia medium grade , pvc conduit 25 mm , gi tee 15 mm , pre laminated particle board of size 8 feet x 4 feet x 6 mm thick , gi tee reducer 20 x 15 mm , gi socket 20 mm , teak wood edging 4mm thick 19mm wide 10 feet long , gi elbow reducer 20 x 15 mm , flexible pipe 20 mm medium grade , pvc conduit 20 mm , water meter 15 mm , fevicol sh 998 , cotton waste , brackets for curtain rod cp 20 mm dia pipe , pvc gitti 1 point 5 inch 100 nos pkt , gi tank nipple 20 mm , gi elbow 50 mm , gi bend 50 mm , paint enamlled redoxide , lead pig , cp curtain rod 20 mm dia 3 point 65 mtr long , socket reducer 25 mm x 20 mm , beading 1 inch x 2 mtr long , gi bend 25 mm , gi socket 50 mm , gi plug 20 mm , gi plug 15 mm , gi nipple 20 x 150 mm , helical door spring 150 mm , pipe gardening 30 mm dia length 30 mtr , silicone sealant in 280 ml , gi bend 20 mm , gi elbow 100 mm , gi socket 80 mm , nail with head ms mochi nail , gi socket 40 mm , aluminium floor door stopper 140 mm , nut and bolt with washer 25 mm dia , paint enamlled og , gi elbow 25 mm , gland packing of size 10 mm thick , gi elbow 40 mm , paint enamlled white , gland packing of size 8 mm thick , brass spindle for 15mm bib cock , nut and bolt with washer 10 mm dia , gi socket 25 mm , paint enamlled red , gi nipple 25 x 100 mm , lead wool , gi bend 15 mm , gi nipple 15 mm x 100 mm , gi nipple 20 x 100 mm , aluminium hasp and staple 75 mm , paint enamlled black , gi nipple 20 mm x 50 mm , putty ready mixed , turpentine oil , thinner in 1 ltr packing , stainless steel bracket for curtain pipe 25 mm , gi nipple 50 x 15 mm , gi nipple 20 mm x100 mm , brush painting 100 mm , paint brush 125 mm , paint enamlled blue aquiren , rubber mat of size 1 mtr x 2mtr x 19 mm thickness , brush painting 50 mm , brush painting 75 mm , brush painting 25 mm
Tender For corrigendum : custom bid for services - pdm1b24334 agency for hydro testing and ibr liaison during repair maintenance schedule testing of boilers hrsg ibr exchanger ibr vessels and other ibr equipment for power plant and other units of refinery during normal operation and shutdown-1) carbon steel piping for hydrocarbon services (with welding electrode e-6010 / e-7018) - units transportation of all piping items from owner's storage points to work site and / or pre-fabrication yard and to site after pre-fabrication; cutting, grinding, edge preparation of pipes and fittings, like flanges, elbows, tees, reducers etc. to match the mating edges of different thickness; fit-up, bending, welding using approved welding electrodes as per owners quality requirements etc. as per codes/specifications, drawing etc., threading, laying, erection and alignment of pipes upto a height of 5 meters on sleepers, pipe racks etc. or upto 5 meters depth in trenches, anchoring wherever required, connecting with equipment, nozzles, steam traps, strainers, orifice assemblies (including tapping upto first block valve), spray nozzles, rotameters; tapping for instrument connections like pressure gauges, thermowells, sample connections, vents, drains etc. including fixing of all types of sw valves, gaskets, nuts and bolts, all inline instruments, elbows, tees, flanges, reducers, full coupling or half coupling, reinforcement pads, earthing strip wherever required; welding prefabricated shoes and supports (including alignment) as per the drawings including preparation of small bore isometrics upto 1.5 inch nb, specifications, codes etc. and as per the instructions of the engineer-in-charge to his entire satisfaction. the scope also includes supplying of all types of tools and tackles, lifting arrangements, equipment, machineries, all consumables and labour etc. to complete the work in all respects including area preparation for hot jobs, area cleaning after completion of work, flushing wherever required, cleaning of pipes externally off all foreign materials like weld beads, clamps fixtures etc. used in fabrication as directed by the engineer-in-charge., 2) provision of reinforcement pad (with welding electrode e-6010 / e-7018) transportation from owner's storage points to work site and/ or pre-fabrication yard and to site after pre-fabrication; cutting, gri nding, edge preparation as per the instructions of the engineer-in-charge to his entire satisfaction. the scope also includes supplying of all types of tools and tackles, lifting arrangements, equipment, machineries, all consumables and labour etc. to complete the work in all respects including area preparation for hot jobs, area cleaning after completion of work, pneumatic testing, cleaning of pipes externally off all foreign materials like weld beads, clamps fixtures etc. used in fabrication as directed by the engineer-in-charge. 3) extra for ibr grade carbon steel piping joints. for ibr piping jobs, the scope of contractor shall be liasoning with ibr authorities including approval of drawings / documents from ibr authorities and also getting the final approval of the job from ibr authorities including payment of any fee or charges to ibr authorities for this purpose (20% of joints). 4) alloy steel piping (astm a335 gr. p22) units- transportation of all piping items from owner's storage points to work site and/ or pre-fabrication yard and to site after pre-fabrication; cutting, grinding, edge preparation of pipes and fittings, like flanges, elbows, tees, reducers etc. to match the mating edges of different thickness; fit-up, bending, welding using approved welding electrodes as per owners quality requirements etc. as per codes/specifications, drawings etc. (alloy steel joints shall be welded by doing root run using tig welding followed by filler passes by manual / semi-automatic arc welding. the job is to be pre-heated prior to welding and all joints to be stress relieved and fully radiographed, however,