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Tender For supply of silvered glass mirror made out of float glass, size: 304 x 405 x 5.5 mm for general purp ose to is:3438:1994 (without conforming to clause 4.3) with amendment no.2 confirming to is: 14900: 2000. two ir monogram at opposite corner of the mirror to rdso sk-68060, alt-2 [ warranty period : 30 months after the date of delivery ]
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 providing of repair, maintenance, and installation of plant/ systems/equipments (version 2) - coal mines; maintenance float management of electrical rotating motors other electrical panels parts of 20cum electric rope shovels on daily basis at rajmahal project ..
Tender For for repairing of self. starter 50 mt 24 volt. 01 dumper sl.no 28238 (float) and repairing/overhauling of radiator assly. of dumper sl. no. 1054 at akwmocp katas area bccl.
Tender For supply of hull allowance items diving items for y12652 y12653 y12654 - swim mask silicon for y12652_1_al_hl , snorkel tube for y12652_1_al_hl , swim fins graphite with back strap for y12652_1_al_hl , underwater torch complete hand held for y12652_1_al_hl , lamp search divers complete head mounted for y12652_1_al_hl , diving knife for y12652_1_al_hl , life belt for y12652_1_al_hl , weight belt diver with four or six pouches for y12652_1_al_hl , lead weights for y12652_1_al_hl , ladder adjustable diver for y12652_1_al_hl , float spherical for marking buoyancy of 5 kgs for y12652_1_al_hl , sinker concrete 25 kgs for y12652_1_al_hl , jacket divers dress for y12652_1_al_hl , trousers diver dress neoprene 3 mm thickness for y12652_1_al_hl , 3 mm diving shoes or booty for y12652_1_al_hl , 3 mm diving hood for y12652_1_al_hl , 3 mm diving gloves for y12652_1_al_hl , buddy line for y12652_1_al_hl , divers lifeline 8 mm_220 mts roll for y12652_1_al_hl , divator underwater communication system for y12652_1_al_hl , swim mask silicon for y12653_1_al_hl , snorkel tube for y12653_1_al_hl , swim fins graphite with back strap for y12653_1_al_hl , underwater torch complete hand held for y12653_1_al_hl , lamp search divers complete head mounted for y12653_1_al_hl , diving knife for y12653_1_al_hl , life belt for y12653_1_al_hl , weight belt diver with four or six pouches for y12653_1_al_hl , lead weights for y12653_1_al_hl , ladder adjustable diver for y12653_1_al_hl , float spherical for marking buoyancy of 5 kgs for y12653_1_al_hl , sinker concrete 25 kgs for y12653_1_al_hl , jacket divers dress for y12653_1_al_hl , trousers diver dress neoprene 3 mm thickness for y12653_1_al_hl , 3 mm diving shoes or booty for y12653_1_al_hl , 3 mm diving hood for y12653_1_al_hl , 3 mm diving gloves for y12653_1_al_hl , buddy line for y12653_1_al_hl , divers lifeline 8 mm_220 mts roll for y12653_1_al_hl , divator underwater communication system for y12653_1_al_hl , swim mask silicon for y12654_1_al_hl , snorkel tube for y12654_1_al_hl , swim fins graphite with back strap for y12654_1_al_hl , underwater torch complete hand held for y12654_1_al_hl , lamp search divers complete head mounted for y12654_1_al_hl , diving knife for y12654_1_al_hl , life belt for y12654_1_al_hl , weight belt diver with four or six pouches for y12654_1_al_hl , lead weights for y12654_1_al_hl , ladder adjustable diver for y12654_1_al_hl , float spherical for marking buoyancy of 5 kgs for y12654_1_al_hl , sinker concrete 25 kgs for y12654_1_al_hl , jacket divers dress for y12654_1_al_hl , trousers diver dress neoprene 3 mm thickness for y12654_1_al_hl , 3 mm diving shoes or booty for y12654_1_al_hl , 3 mm diving hood for y12654_1_al_hl , 3 mm diving gloves for y12654_1_al_hl , buddy line for y12654_1_al_hl , divers lifeline 8 mm_220 mts roll for y12654_1_al_hl , divator underwater communication system for y12654_1_al_hl