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 12 core single mode armoured optical fibre cable , 24 port fully loaded liu , sm duplex fiber patch cord 2 metre , plb hdpe pipe 40 mm , 12 port ofc cable joint encloser , 24 port layer 2 poe switch with 4 sfp port , 08 port layer 2 poe switch with 2 sfp port , cat6 outdoor utp cable , cat6 utp patch cord 2 mtr , rj45 connector , 3 core power cable 1.5 sq mm , gi pipe 50 mm , pvc conduit 25 mm , rfid smart route marker , rfid electronic marker locator , physical frangible route marker , workstation for softwares , 43 inches led display , laying of cat utp and power cable , laying of 12 core sm ofc cable , laying of hdpe pipe and gi conduit through soft soil digging , hdpe pipe and gi conduit concrete wall , hdpe pipe and gi conduit , hdpe pipe through road cutting , concrete chamber with frp cover , ofc splicing , otdr testing and report submission , installation integration of entire setup , post warranty camc for 1st year , post warranty camc for 2nd year , post warranty camc for 3rd year
Tender For supply of boq mechanical engineering lab equipments angle gauges , screw thread micrometer , feeler gauge ,comparator stand , mechanical comparator with stand ,clinometer , gear tooth vernier , electronic weighingmachine , digital tachometer , cnc milling machine , cncturning lathe , single plate clutch , multi plate clutch unit ,centrifugal cluth unit , cut section of synchromesh gear box, model of abs brake system , model of rack and pinionsteering gear , model of power steering gear or re-circulating type worm and wheel or other type of steeringgear , model of su pump , training vehicle , automobileelectric system , brake master cylinder , sliding mesh gearbox , cut section model of 4 cylinder 4 stroke petrol engine ,ac induction motor with vfd for motorizing already existingmodels in lab , open hearth furnace with blower electric ,wood working lathe , spot welding set , electric metal cutoff saw , hand lever shearing machine , single phase arcwelding machine with eye protecting goggels black andwelding gloves , pipe threading die set , mig welding set ,tig welding set , mould making hand tools set hand rammerlifter trowels shovels vent wire hand riddle sprue pin ,moulding flasks cope and drag , bench grinder , shapermachine with standard accessories , slotting machine withstandard accessories , horizontal milling machine arbor size23mm and 32mm with standard accessories , grinderattachment for lathe , portable hand drill machine bench grinding machine (grinding wheel dia 300 mm, width38mm,bore 1 , centre height 910 mm), digital pyrometer(optical sensor radiation pyrometer for tempareturemeasurement on small target to 0.0005" (0.0127mm)accuracy: 0.5% range selectable digital display: c, f, r, k standard temperature ranges: upto 1000 c,adjustable emissivity setting: 0.01 to 1.0), metallurgicalmicroscope (the microscope should have magnification 30xto 1500x with binocular head inclined at 45 . both sidecoaxial focusing knobs, quadruple revolving nosepiece withaccurate centering and positive click stop ,large coaxialmech. stage for x-y movement of specimen, bright field illuminator 6v-20w halogen lamp with field diaphragm, filter
Tender For supply of hanging/crane type electronic weighing scale brand with load capacity of 5000 kg or above . class-iii, led display, resolution- 2000 grams, rechargeable battery operated, conformity to is:9281-3 (1 981) with calibration certificate. [ warranty period: 12 months after the date of delivery ]
Tender For electronic torque wrench tester : supply , installation and commissioning of electronic torque tester suitable for 3/8 inch, 1/2 inch, 1inch squar e drive torque wrenches to test, display unit with connecting cable mounting arrangement along with software for transferring reading to pc for documentatio n with square drive adopters with calibration certificate. specification:- (1) holder: holder (2) display unit: digital indicatormicroprocessor controller board (3) range of torque tester-05 nm to 1000nm (4) least count:0.5 nm (5) tripod: tripod for display unit (with1.5 m cable) (6)mains adopter: mains adopter (110v-2 30v) with interchangeable socket adopter or direct connection to 12v-i n car supply is possible.(7) square drive adopter : square drive adopter (all the neces sary adopter for the mentioned capacity torque wrenches in description) (8) kit :kit for attaching the unit to a workbench of wall in a horizontal or vertical test ing positioning for clockwise and anticlockwise use.(9) unit ofmeasurements: n-m, ft-lb, in-lb. (10) interchangeable: interchangeable transducer that can be at tached to the holder by means of a quick release safety lock.(11) software including :software including usb hub and jack cable , which enables readings to b e the pcfor documenting purpose.(12) to be packed : to be packed and supplied in sturdy plastic case.(13) operation volt: 230v ac +/- 10%,50 hz+/- 2%,1 p h (14)weight:12-15 kg approx. make /brand:- hmm-hytech, model-dt-itm or similar. offered make:- hmm-hytech model : dt 1t-m accepted make/bran d:- slk micro measurement [ warranty period: 30 months after the date of delivery ]
Tender For corrigendum : supply of tools and spares for track maintenance - insulated level cum gauge -pie brand export quality insulated level cum gauge , versine measuring kit model vk-2 25mm , versine cord nylon cord 1 mm dia , light weight mono rail cum road trolley - wheel barrow rdso spec. no.tm sm 16 dt.31.03.1992 revision 02 of 2022 , mechanical jack 15 ton capacity with handle - non infringing type , wire claw - 8 prongs , pan iron morter 400 mm dia with blended ends 6.4 mm dia wire all around , crow bar steel of length 60 inch dia. 25.4 mm flat ended confirming to is 704-1984 , clearance gauge model c-1 -pie sleigh or clearance gauge model c1 precisely made of hardened stainless steel in metric units , double hexa deep socket black 3 by 4 inch drive 41 mm size. , extension bar 3 by 4 inch square drive 2753 , rake ballast 4 prongs as per specification no. is 3991 drag. no. y-31 , electronic track gauge model al-6e pies electronic track and turnout gauge for standard gauge 1435 mm display system and supplied in a padded carrying bag. , portable bolt tightening machine capacity 1700 nm , portable genset petrol 3 kv petrol run ultra silent , torque wrench with ratched mechanics 135 nm to 675 nm , glass filled nylon 99 gfn liners. drawing no. rdso t-3706 , half moon metallic shim 5mm thickness ctype for 41 mm dia. bolt , half moon metallic shim 3mm thickness c- type for 41 mm dia. bolt , half moon metallic shim 2mm thickness c- type for 41 mm dia. bolt , check rail shim-2 mm thickness for 36 mm dia. bolt material-gi , check rail shim-3 mm thickness for 36 mm dia. bolt material-gi , check rail shim-5 mm thickness for 36 mm dia. bolt material-gi
Tender For bid to ras corrigendum : supply of active led bazel less indoor video wall of 1.8mm pixel pitch in cob flip chip of size 14.67 by 9.42 ft , power distribution unit , video wall controller , video wall structure wall mounts , 75 inch display , electronic lectern with front screen 32 inch , 14th generation intel core i7 processor , 32 inch curved monitor , center server , ups online 6 kva , ups online 3 kva , 24 port gigabyte switch , air conditioner 2 ton with stabilizer , cat 6 cable for networking 305 mtr , patch cord , io boxes , power extension board 6 socket , video conferencing camera , wall speakers , amplifier , rack mount mixing console , wireless gooseneck mic , hdmi matrix 2 by 4 , hdmi slitter 1 by 8 4k , equipment rack , speaker wire patch cord cable and connectors , modular workstation desking system with wire management , good quality high back chairs , installation testing and commissioning freight charges
Tender For corrigendum : supply of lab equipment - details decription attach in the specfication document ), bench top single beam systronics uv spectrophotometer 340 999 model no 167 covers 190to 1100 nm 4 position cuvette holder automatic wavelength selection 128x64 graphical lcd printer interface usb computer interface with professional scanning software specifications wavelength range 190 1100nm spectral band width, remi cis 24 plus orbital shaking incubator size 580 by 600 mm shaking speed range 20 to 250 rpm voltage 220 240v external dimensions 800 x 1150 x 1300 mm chamber volume 215 ltrs, manual baby mini power pack manual bio world, mini horizontal gel electrophoresis system, advance rotary microtomy latest spencer 820 type with razer, compound microscope, laboratory hot air oven, laboratory eggs incubator capacity 80 lit, ph meter digital, conical flask 200 ml insufficient number available, electronic balance, gel electrophoresis assembly with digital power pack, thermal cycler, cooling centrifuge, gel documentation unit with computer, micropipette, tips of micropipette, eppendorf tubes, pcr tubes, deep freezer, laminar air flow, ph meter, soxhlet apparatus with heating mantle, autoclave, bottle top dispenser with dual inte technology, centrifuge, digital chemical balance, double door refrigerator, d o meter, digital ph meter with electrode lcd display, digital photoelectric colorimeter, digital potentiometer, distillation apparatus, dryer and temperature controller, blower, chemical thermometer, calorie meter, beaker 50ml 100ml 250ml 500ml and 1000ml catering to various volume crafted from high quality 3point3 borosilicate glass the low form design with a wide base and tapered spout, funnel, pipette, burette, burette stand, mortar pestel, electronic balance, burette brush, test tube brush, conical flask, volumetric flask capacity sg 100 100ml sg 250 250ml sg 500 500ml sg 1000 1 000mlmaterial glass heat resistance with graduation, wire gauze, round bottomed flask, periodic table poster, gas connection and fitting in new lab, water bath digital, digital ph meter, digital blood pressure machine, blower, single needle lock stitch sewing machine, over lock or inter lock sewing machine, usha steam ironpro s13816, notice board, inverter, water coller