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Tender For providing dedicated three phase service connection including installation of outdoor type distribution panel and energy meter panel to all t v olds qtrs 01 shq bsf jalpaiguri 2 169 bn bsf 3 40 bn bsfand 4 shq bsf jalpaiguri in residential colony at
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 auction sale of miscellaneous scrap : rubber/ canvas/ fiber/ v belt/ leather etc scrap,dieasel generator set scrap trolley mounted etc,acsr conductor scrap at area store bhopal,1phase/3phase/burnt/defective/ iron clad type meter (black) etc,pvc wire and cable (al wire),all type relay scap at area store bhopal,11kv ct various type/ capacity without oil scrap at area store bhopal,33kv ct various type/ capacity without oil scrap at area store bhopal,11kv capacitor unit scrap at area store bhopal,11kv rvt scrap at area store bhopal,11/33kv vcb scrap at area store bhopal,battery scrap at area store bhopal,battery charger scrap at area store bhopal,11/33 kv polymer pin insulator scrap at area store bhopal,33 kv pt s/ph scrap at area store bhopal,11 kv single phase scrap at area store bhopal,heavy and light mixed vehicle tyres u/s scrap at area store bhopal,brass scrap (recovered from transformers studs and nut bolts),11/33 kv panel at area store bhopal,33 kv ct/pt various type/ capacitor w/o oil scrap at area store bhopal,empty barrel drum at area store bhopal
Tender For corrigendum : supply of 415v, utilization category ac23a, 630a local isolator cabinet in sheet steel enclosure complete with 630a, 3 pole load break switch. 2. shall be with side operated handle, padlocking facility, prebreak micro switch having 1no+1nc contact. 3. micro switch contacts shall be wired to 4 sq mm tb for external termination. 4. provision of padlock system having sufficient space to lock the isolator at off position by minimum two agencies at a time. 5. complete with both power & control circuit wiring with all insulators, bus bars and control terminal blocks. 6. detachable bottom gland plate for entry of cables from bottom. 7. front door shall be hinged and inter-locked with the isolator in 'on' position. the front door should have a minimum 3 mm thickness perspex/triplex window for observation of position of contacts. 8. isolator should confirm to iec 60364 standard. 9. the dimensional drawing of the local isolator cabinet or product catalogue showing mounting arrangement of the components should be enclosed along with the offer. 10. isolator cabinet should be provided with rain canopy. 11. any isolator parts should not be made of aluminium/aluminium alloy. 12. isolator cabinet shall be metal enclosed suitable for wall fixing using 4 welded fixations, dust and vermin proof and shall be provided with degree of protection as ip-55. 13. provision for three distinct parallel busbar per phase for termination of three nos of 240 sqmm aluminum cables for incoming and two distinct busbar per phase for termination of 120 sqmm copper cable. 14. all hardware used in isolator cabinet shall be corrosion resistant. 15. minimum clearance between the live parts and detachable bottom cable gland plate shall be 400mm. 16. cabinet should be painted with alkaline resistant epoxy paint. 17. isolator cabinet shall have provision for earthing at two separate and distinct points. 18. each isolator cabinet should be supplied with panel keys., push button station specification: 1. pbs made of 2mm sheet steel enclosure with rain canopy, protection: ip-65. 2. 01 no. of green colour start pb with 1no+1nc contacts, 01 no. of red colour stop pb with 1no+1nc contacts, 01 no.of increase pb with 1no+1nc contacts <(>&<)> 01 no.of decrease pb with 1no+1nc contacts. one emergency stop push button with 1no+1nc contacts (push to lock type) shall be provided. size of each push button is of 22.5mm diameter. inscription plate for all push buttons. 3. pb shall be wired with 2.5 sq.mm. copper wire to 40 nos. serially numbered terminal blocks (tb) of elmex make having tb-5-6, 7-8, 11-12, 13-14 <(>&<)> 17-18 shorting link. 4. two nos. of cut out of size 72x72 mm for ammeter and rpm meter shall be provided. 5. 'on','off' <(>&<)> 'trip' indication led lamps in red, green <(>&<)> amber colour respectively with inscription plate to be provided. 6. all push buttons, elements, led lamps <(>&<)> cutout for ammeter <(>&<)> rpm meter shall be on the hinged door of the pb station. 7. pb station shall be weather proof, neoprene rubber gasket suitable for outdoor application. 8. 2nos. of earthing studs to be provided. 9. left side hinged door shall be provided with flexible braided copper earthing. 10. pbs shall have 04 nos. of corrosion free bracket suitable to fix on vertical surface. 11. detachable gland plate to be provided. 12. the push button shall be painted with one coat of red oxide primer <(>&<)> two coats of zinc chromate primer and finally finished with stoving enamel grey paint. 13. the push button station shall be generally in line of enclosed drawing (fig-2). 14. party to submit the drawing along with the offer for technical scrutiny.
Tender For supply of telescopic channel made of mild steel 1point 25mm thick of 45kg capacity , supply only on load change over switch front operated switch disconector with extenderd shaft and ip 65 fp 400 amps 36 ka , supply only 3 phase automatic phase sequence corrector of 50 amp load capacity complete make abb , supply only 3 phase automatic phase sequence corrector of 20 amp load capacity complete make abb , xlpe cable alum conductor 3 core 300 sqmm 33 kv , 33 kv e 3 core 300sqmm standard aluminium conductor xlpe armoured cable , solar inverter 100kw , solar inverter 50kw , solar inverter 33kw , solar inverter 20kw , supply hi wall split air condition units in stone walls type split ac inverter model 5 star rating adheriing to specified bee 100 percent copper tubing and of capacity 2 point 0 tr , supply and fix voltage stabilizer for automatic operation single phase naturally air cooled indoor type and designed input vairiation between 170v to 250v , refrigerators 310ltr doble door , led kerb stone of size 500mm x 150mm x 200mm made out of 5 foundation rods ensuring complete protection against theft and having a led strip of length 470mm with 22 nos led duly plastic coated of any , gaseous type gravity feed chlorinator of capacity upto 2 kg hrs chemical grade panel board 6mm thick 2 x 4 feet pvc primary filter safety gauge teflon pipe 5 rm ubend secondary filter , new empty chlorine gas cylinder 100kgs capacity along with all accessories , chlorine cylinder emergency safety kit on operating cylinders consist of following accessories cylinder valve hood assembly 01 set cylider valve cap with silver coating valve 01 set , self contained open circuit breathing apparatus with oxygen cylinderfor duration of 30 minutes with audio alarm system light weight fiber glass back plate and two stage pressure reducing , upvc pipes sch 40 with fittings onwalls ceiling or laying in floors of size 25mm complete all as specified and directed by engineer in charge , gaseous type gravity feed chlorinator of capacity upto 2 kg hrs chemical grade panel board 6mm thick 2 feet x 4 feet mounted consist of flow meter , new empty chlorine gas cylinder 100kgs capacity alongwith all accessories , self contained open circuit breathing apparatus with oxygen cylinder for duration of 30 minutes with audio alarm system light weight fiber glass back plate and two stage pressure reducing sys , solar street light 40 watt made with high efficiency monocrystalline with minimum 150wp , steel tublar high mast pole 12 point 5 meter height octagonal material heavy duty mild steel surface along with base , eros decorative orbit s round arm for fixing inverted post top lamps made from casting , pole for fixing iverted post top lamps made from castrion from casting procedure decorative having 3 different dia in one length , epr ethylene propylene rubber pcp high mast cable multistranded copper cable 4 sqmm 4 core , sintex box for street light pole size 205mm x 200mm x 105mm along with aluminium busbar 100 amps , galavinised iron steel water tubing 50mm nominal bore heavy grade , numerical based overcurrent and earth fault protection relay of having 08 nos led indictor for showing different ype of signals operating on vx 24 25 vdc 40 240 vac , precast manhole cover 1 point 20 x 0 point 60m x 0 point 06m , precast manhole cover 1 point 90 x 0 point 60m x 0 point 06m , precast manhole cover 1 point 90 x 0 point 45m x 0 point 075m , fencing of size 75 x 75 x 3 point 15 mm dia , bid details/ 2 / 60 submersible pump 5 hp 3 phase , submersible pump 3 hp 3 phase , submersible pump 2 hp 3 phase , submersible pump 1 hp single phase , sumersible pump half hp single phase , dol starter for 1 hp motor , dol starter for half hp motor , dol starter for 2 hp motor , dol starter for 3 hp motor , automatic star delta starter 3 phase 5 hp , automatic star delta starter 3 phase 20 hp , gi tubing med grade 40mm dia , gi tubing med grade 50mm dia , pop up sprinkler , heavy duty pvc pipe 63mm dia , h
Tender For bid to ras corrigendum : sitc of 630a 11kv indoor ht panel for 250kva id substation at gr floor gmt bldg zero mile - dismantling of old 11kv ht panel from meter room , lifting shifting of old 11kv ht panel from meter room to shade near building wall , supply of 11kv id ht panel of 630a, id vcb with horizontal do with ic cum og etc. , itc of 11kv id ht panel of 630a, id vcb with horizontal do with ic cum og etc. , supplying and making ht indoor cable end termination with heat shrinkable jointing kit for 11 kv 3 core 95 sq. mm. xlpe power cable
Tender For bid to ras supply of ro plant in full ss skid , sediment filter jumboo 20 inch , softner ss vessel with media , activated super charcoal with ss vessel , high rejection ro membranes in ss chamber , uv cartridge filter , raw water pumpset , high pressure pumpset multi stage , rotor flow meter , tds valve , low pressure switch , digital or manual or automatic panel with overload protection and tds display , mineral cartridge , pressure gauge , 500 liter ss storage tank