Latest bridge rectifier Tenders | Government bridge rectifier Tenders

State Government

CTN :39628317

19 Mar, 2025 NA

Parganas - West Bengal

Tender For overhauling and calibration of 11kv breaker, transformer and other at sub-station equipments including pdb and mcc of dps-iiig of aa-iii under ntk project.

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

State Government

CTN :39615093

17 Mar, 2025 NA

Tehri Garhwal - Uttarakhand

Tender For supply and installation of lt fuse set and earthing of distribution transformer of different 11 kv feeders coming out of 33/11 kv sub-station rajakhet

Central Government/Public Sector

CTN :39602027

17 Mar, 2025 17.06 Lacs

Baikunthpur - Chhattisgarh

Tender For repair of sub station building and making of existing transformer shed of katkona sub area of baikunthpur area

State Government

CTN :39428060

14 Mar, 2025 90.05 Lacs

Bengaluru - Karnataka

Tender For corrigendum : dismantling, transportation (to and fro), repair, testing, erection and commissioning of sick power transformer of rating 20 mva, 66/11kv, transformer & rectifier (t&r) make, sl. no.200094, year of manufacture 2007 failed 66/11kv electronic city (keonics) sub-station lying at 66/11kv electronic city (keonics) sub-station on total turnkey basis

State Government

CTN :39428129

14 Mar, 2025 1.38 Crore

Bengaluru - Karnataka

Tender For corrigendum : dismantling, transportation (to and fro), repair, testing, assembling, erection and commissioning of sick power transformer of rating 31.5 mva, 66/11kv, kriloskar electric make, sl. no.102xj007/01, year of manufacture 2011 failed 66/11kv cessna buisness park sub-station lying at 66/11kv cessna business park sub-station on total turnkey basis

Central Government/Public Sector

CTN :39602015

17 Mar, 2025 13.00 Lacs

Dhanbad - Jharkhand

Tender For repairing and rewinding of 5/7.5 mva,11/6.6 kv volt 3 phase power transformer power ware for kantapahri sub-station of make sl.no.74400 of akwmc,under katras area

CTN :39615403

14 Mar, 2025 4.85 Lacs

Awantipora - Jammu And Kashmir

Tender For upgradation of 63 kva to 100 kva sub-station near shop of tariq ah khanday and installation of poles from transformer to h-o mohd abdullah khanday and mohd shaban mir at nowpora amlar under pri grants 2024-25

CTN :39607666

15 Mar, 2025 22.64 Lacs

Kochi - Kerala

Tender For maintenance of electrical installation and fans i/c repair maintenance of of water supply pump set, sub station, dg set, wet riser, fire fighting system, automatic fire alarm system, ac units, street lights etc at office building and qel lab building, spices board, kochi during 2024-25. sh. maintenance of iei and fans, operation of pump set, dg set, wet riser system, annual maintenance contract of dg set, split ac units, servicing od sub station eqpt, transformer oil filteration etc.

CTN :39603628

18 Mar, 2025 42.5 Thousand

Multi City - Multi State

Tender For repairing & maintenance, de-hydration & filtration of 400kva, 3.3kv/440v, marson make transformer installed at 1 no. main sub-station of j.k.nagar r colliery under satgram sripur area.

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