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State Government

CTN :39565718

10 Mar, 2025 1.51 Lacs

Udhampur - Jammu And Kashmir

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

Central Government And Public Sector

CTN :39602543

13 Mar, 2025 54.3 Thousand

Hyderabad - Telangana

Tender For attending breakdown of mv panel / ea set control panel, modification of panel with on load changeover switch at te building tirumalgherry.

Central Government/Public Sector

CTN :39459197

17 Mar, 2025 NA

Dahod - Gujarat

Tender For supply of rotary switch guard type rp-145 (ph) 16amp,440v contact arrangement test -3 n/0+1 n/c, run 3 n/c + 1 n/o with name plate indicating test and run position make switchon,kaycee,siemens [ w arranty period: 30 months after the date of delivery ]

CTN :39409085

13 Mar, 2025 5.97 Lacs

Agartala - Tripura

Tender For supply of laboratory and scientific equipment/tools - laboratory and scientific instruments/tools, compressor: type: refrigeration compressor, hermetically sealed, reciprocating, refrigerant type: r22, cooling capacity: 2355 kcal/hr type, voltage 220-240 v ac, 1- phase (details as per sl. no. 1 at annexure-i)., compressor: type: refrigeration compressor, hermetically sealed, reciprocating, refrigerant type: r134a, cooling capacity: 1411kcal/hr, voltage: 440vac, 25mfd, 1- phase (details as per sl. no. 1 at annexure-i)., compressor: type: refrigeration compressor, hermetically sealed, reciprocating, refrigerant type:r134a, cooling capacity: 0.25hp; supply voltage: 220-240 v ac, 1- phase (details as per sl. no. 1 at annexure-i)., capillary tube : 1.12 mm od, material: copper astm b280 (details as per sl. no. 2 at annexure-i)., capillary tube : 1.20 mm od, 8 ft, material: copper astm b280 (details as per sl. no. 2 at annexure-i)., capillary tube : 1.40 mm od, material: copper astm b280 (details as per sl. no. 2 at annexure-i)., capillary tube : 0.95 mm od, material: copper astm b280 (details as per sl. no. 2 at annexure-i)., thermostatic expansion valve: orifice- 0 no., connection-1/2 x 3/8 flare (details as per sl. no. 3 at annexure-i)., thermostatic expansion valve: ten 068z3348, q-33311 r134a -40 to 10 ps 34 bar. (details as per sl. no. 3 at annexure-i)., hand stop /manual shut-off valve: media: r22, r502, r134a, r407c, r410a; port size: 3/8" sae; cooling method: direct cooling; power: manual; including brass material nut bolt. (details as per sl. no. 4 at annexure-i)., hand stop /manual shut-off valve: media: media: r22, r502, r134a, r407c, r410a; port size: 1/4" sae; cooling method: direct cooling; power: manual; including brass material nut bolt. (details as per sl. no. 4 at annexure-i)., evaporator coil : 1/4" od, material: copper astm b280 (details as per sl. no. 5 at annexure-i)., condenser coil ; 3/8" od, material: copper astm b280 (details as per sl. no. 6 at annexure-i)., dimmer stat : 1500 w, 230 v ac. single phase, 50hz (details as per sl. no. 7 at annexure-i)., pressure gauge : connection 1/ npt 8 0 - 200 psi dial size 2.5" (63mm), connection sizes 1/4" (details as per sl. no. 8 at annexure-i)., digital temperature indicator : range -30 to 200 0c, power supply 230vac, digital display, accuracy 0.01 c channel -12 (details as per sl. no. 9 at annexure-i)., digital temperature indicator : type input cr-al(k-type), rang- 0 0c to 200 0c supply- 230vac, 50hz, channel -12 (details as per sl. no. 9 at annexure-i)., ammeter (digital) : rang 0-10 amp. single phase, digital display, 230v,10%vac (details as per sl. no. 10 at annexure-i)., voltmeter (digital) : rang 0 300-volt, single phase, digital display (details as per sl. no. 11 at annexure-i)., hp/lp cut out relay : hp- 8 to 32 bar, lp-0.2 to 7.5 bar, dual controls, 240 v, 50 va, single pole changeover switch (spdt), contact load 240 v ac: 8 fla, 48 lra (details as per sl. no. 12 at annexure-i)., energy meter : a.c. single phase, 2 wire solid state (static) fully electronic energy meter, accuracy class 1.0 & current rating 5-30 amp. with backlit lcd display for240 volt system fitted with pilfer proof meter box.(details as per sl. no. 13 at annexure-i)., r-134a refrigerant gas : 5 kg filled cylinder; moisture less than 0.001; purity: 99.9%; appearance: colourless; application: refrigerant; type of refrigerant-r134a. (details as per sl. no. 14 at annexure-i)., r-141b refrigerant gas : 5 kg filled cylinder; purity 99.9% appearance: colourless (details as per sl. no. 15 at annexure-a)., r502 refrigerant gas : 5 kg filled cylinder; acidity 0.00001 % appearance: colourless purity 99.9 % (details as per sl. no. 16 at annexure-i)., r407c refrigerant gas : 5 kg filled cylinder; appearance: colourless purity 99.9 % (details as per sl. no. 17 at annexure-i)., r-1234ze hfo refrigerant gas : 5 kg filled cylinder; moisture less than 0.001; purity: 99.9%; appearance: colourless; (det

Central Government And Public Sector

CTN :39382058

18 Mar, 2025 53.71 Lacs

Multi City - Gujarat

Tender For removing, shifting and re-erection the electrical substation equipments from 6th berth s s to proposed location thereof inside cargo jetty area - removing & shifting of the following equipments as per tech spec. no:-1, 500 kva distributions transformer., rmu of 12 kv, 630 amps 21 ka outdoor mounted rmu unit., lt panel ( way-15), re-erection, testing & commissioning of the following equipments as per tech. spec. no. 2, 500 kva distributions transformer., rmu of 12 kv, 630 amps 21 ka outdoor mounted rmu unit, supply at site 3 core armoured ht aluminium conductor xlpe cable of 11 kv grade, following rating of the as per technical specification no. 3 a). 3c x 150. sq. mm., supply at site 4 core armoured lt aluminium conductor xlpe cable of 1.1 kv grade, following rating of the as per technical specification no. 4 a) 3.5c x 300 sq. mm., supply, installation testing & commissioning at site of following 11-way lt load point panel (as per proven design) as per technical specification no. 511 ways {2 i/c, i changeover (bus coupler), 8 o/g}., laying ht/lt armoured aluminium conductor cable 3.5/4 core up to 35 sq. mm. to 150 sq. mm. as per technical specification no. 6, through hdd, with hdpe heavy duty pipe., in existing rcc trench, hard & soft soil, supply at site following way lt distribution panel (as per proven design) as per technical specification no. 715 ways (2 i/c, 1 bus coupler, 12 o/g)., installation, testing & commissioning of lt distribution panel as per technical specification no. 8, providing & connecting following type of earth wire from earth station to equipment as per requirement as per tech. spec. no. 9, 25 x 3 mm. copper strip, 25 x 3 mm. hot dip gi strip., 8 swg gi earthing wire, supply & preparation of earthing station, tfc, chemical treated back filled compound earthing system as per technical specification no. 10a) pipe-in-pipe 50-60 mm. dia. gi type 3 mtr. depth, for transformer body earth, maintenance free, supply of 3 phase 500 kva 11/0.433 kv indoor type distribution transformer as per technical specification no. 11, installation, testing & commissioning of 500 kva 11/0.433 kv indoor type distribution transformer as per technical specification no. 12, supply of tpn double door ip 42 db 4 ways distribution board as per technical specification no. 13, fixing of tpn double door ip 42 db 4 ways distribution board as per technical specification no. 14, supply of following type of mcb as per technical specification no. 15, 40a tpn mcb with 10ka breaking capacity, 32a sp mcb with 10ka breaking capacity, fixing of tpn/sp mcbs with 10 ka breaking capacity as per technical specification no. 16, providing & fixing of surface wiring with 2 x 2.5 sq. mm. copper conductor with pvc insulated (single phase and neutral) for single phase sub-circuit from the db/mcbs to the switch board as per technical specification no. 17, providing and fixing surface wiring with 1.5 sq. mm. copper conductor for light /tube point with pvc insulated single core standard copper conductor wire as per technical specification no. 17, providing and fixing surface wiring for 20a & 10a, 240 volt, 50hz power point as per technical specification no. 19, supply & installation of surface mounted 20 watt led tube light luminary complete with batten as per technical specification no. 20, supply at site 300mm sweep exhaust fan as per technical specification no. 21, fixing of 300mm sweep exhaust fan as per technical specification no. 22, supply of heat shrink straight through joint kit for 11kv, 3c x 150 sq.mm h.t xlpe cable as per technical specification no. 23, fixing the heat shrink straight through joint kit for 11kv 3c x 150 sq.mm h.t xlpe cable as per technical specification no.24, supply of heat shrink long sleeve & boat, suitable for rmu end termination kit (indoor type) for 11kv 3c x 150 sq.mm h.t xlpe cable as per technical specification no. 25, fixing of heat shrink long sleeve & boat, suitable

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