Latest relay interlocking Tenders | Government relay interlocking Tenders

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 :39628894

01 Apr, 2025 NA

Tinsukia - Assam

Tender For electrical works for replacement of conventional type panel interlocking with distributed electronic interlocking at 2 stations (ntsk, tsk) and ei at 4 stations(spgn,slgr,agi &ttb)

Central Government/Public Sector

CTN :39618022

11 Apr, 2025 NA

Bhusawal - Maharashtra

Tender For design, supply, erection testing and commissioning of 25 kv, single phase, ac ohe works, in connection with provision of 25 kv / 240 v, 25 kva at supply for work of replacement of indoor interlocking signaling gears with electronic interlocking (ei) at panevadi station.

Central Government/Public Sector

CTN :39586173

11 Apr, 2025 NA

Bhusawal - Maharashtra

Tender For design, supply, erection testing and commissioning of 25 kv, single phase, ac ohe works, in connection with following works:(a)badnera station-extension of up shunting neck for full rake length to facilitate placement/removal of goods shed.(b)paras station- provision of 25 kv / 240 v, 25 kva at supply for work of replacement of indoor interlocking signaling gears with electronic interlocking (ei).

Central Government/Public Sector

CTN :39589949

28 Mar, 2025 NA

Ghaziabad - Uttar Pradesh

Tender For electrical work in connection to (a) sahibabad-ghaziabad: replacement of automatic section with distributed electronic interlocking and (b) delhi sarai rohilla - replacement of signalling gears with electronic interlocking (c) replacement of signalling gear on age cum conditional basis with ei at 6 stations i.e. gra, bzjt, kun, bzk, shdm & moy

Central Government / Public Sector

CTN :39586061

28 Mar, 2025 NA

Guntur - Andhra Pradesh

Tender For provision of macls indoor and outdoor with electronic interlocking (hot standby) at reddipalem station in view of 1) provision of reception and dispatch facilities for road 4 & 5 and 2) direct reception from guntur to reddipalem and direct dispatch from reddipalem to guntur by providing favorable crossovers and converting existing shunting neck as r&d at guntur division of south central railway

Central Government/Public Sector

CTN :39586026

27 Mar, 2025 NA

Multi City - Multi State

Tender For comprehensive annual maintenance contract of m/s. medha make electronic interlocking at mq, tlnr, pvn, kdmd, tnk, tp, amm, agx, nmj, tam & mv (11stations) in tiruchchirappalli division for three years.

CTN :39587196

10 Apr, 2025 NA

Lumding - Assam

Tender For "design, supply, installation, testing and commissioning of electronic interlocking system (hot standby) including all indoor work in connection with provision of ei training setup at sttc/pno in lumding division of n.f. railway"

CTN :39549214

02 Apr, 2025 NA

Ajmer - Rajasthan

Tender For "design, manufacture, supply, installation, testing and commissioning of microprocessor based electronic interlocking (ei) system at new madar station of wdfc as per rdso specification no. rdso/spn/192/2019 version 2 with latest amendment, execution of indoor and outdoor work of fixing & wiring of track circuits to meet centralized operation of points & signals etc. as per re standard along with indoor system design for signalling installations including supply (part), testing & commissioning of interlocking of new madar station and commissioning of requisite interface between existing signal interlocking (ei system) at adjacent stations new saradhana & new kishangarh station of wdfc with automatic block section working in new kishangarh - new madar and new madar-new saradhana block section."

Central Government/Public Sector

CTN :39532112

24 Mar, 2025 NA

Madurai - Tamil Nadu

Tender For comprehensive annual maintenance contract (camc) of m/s. kyosan make electronic interlocking (ei) system at 20 stations over madurai division for three years. (mdu, mvn, mej, vpt, ayvn, tml, gdn, tip, kdu, tay, kgd, tmq, ty, adpt, srt, nll, cvp, te, bdnk, tdn)

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