Latest book self Tenders | Government book self Tenders

Central Government/Public Sector

CTN :45578711

03 Jul, 2026 NA

Thiruvananthapuram - Kerala

Tender For supply of insulation control 110v ac, measuring range 1-100 kohm, control voltage 24-240v ac/dc, output 1c/0(spdt) contact system leakage capacitance 10 micro farad as per rdso lr.no.el/7.1.108/mssbc dt.17-09-2021.sn of bom 67 suitable for switch board cabinet of lhb ac coaches of rdso.specn.no. rdso /pe/spec/ac/0192-2018(rev-1). [ warranty period: 30 months after the date of delivery ] ]

State Government

CTN :45579934

25 Jun, 2026 NA

East Champaran - Bihar

Tender For providing of repair, maintenance, and installation of plant/ systems/equipments (version 2) - office space; study chair with cabin, book self, office table, office chair, computer set pc, modern pd, photo frame, carpet, steel scale, highlitner pen, world map, pri..

CTN :45535219

20 Jun, 2026 NA

Krishnagiri - Tamil Nadu

Tender For purchase of ece department lab electronics equipments - equipments for ece, dual output regulated dc variable power supplyinput voltage : 230v/50hz acoutput voltage :(0-30)v dcoutput current :(0-2)a dcprotection circuit : over voltage, over current, and short-circuit protectionhigh efficiency : greater than 85%low ripple and noise : less than 50 mvdigital display, function (signal) generatorspecs:frequency range : 0.1hz to 5mhzdisplay :4 to 6 digit led displayoutput waveforms : sine, triangle, square, pulse, rampamplitude :0-20 vpprise time :100 nsdistortion : 1% within specified frequency rangepower supply : 230v ac 10% , 50-60 hzoutput amplifier protection : short circuit and 15voverload protectiondc offset: 0 to 10 v adjustableattenuation: 0 to -60 db, decade resistance box range : 1 to 1m rotary switch selection with 6 dialssteps : 1 , 10 , 100 , 1k , 10 k , 1m accuracy : 1%, decade capacitance box range : 100 pf to 100 frotary switch selection with 6 dialsmaximum voltage : 350vaccuracy : 1%, decade inductance box range : 10 h to 10 hrotary switch selection with 6 dialslow-loss inductorsaccuracy : 1%, sim reader trainer kitpower supply :operates on 230v ac 10%, 50hz mains supplybuilt-in regulated smps power supplyoperating dc supply : 5v/12v with overload and short-circuit protectionsim card interface :supports gsm sim cards compatible with 2g / 3g / 4g / 5g networkssim card read/write interfacesupports sim card initialization, authentication and communication functionscompatible with standard 6-pin / 8-pin sim card socketscommunication interface :usb 2.0 interface for pc communicationrs-232 serial communication interfaceuart communication facility for embedded system interfacingsim operating parameters :selectable sim clock frequencies3.579 mhz7.159 mhz14.318 mhzsim supply voltage selection facilitysim reset and activation controlsupported protocols and standards :gsm etsi 07.07 and etsi 07.05 at command supportiso/iec 7816 smart card communication supportsim communication command monitoring facilityhardware features :on-board sim card socketled indication for :power statussim detectionreset activityuser manualutility software cd / downloadable software packagedata transmission/receptionbuilt-in keypad for standalone operation.lcd display module (128 64) for menu and status display.on-board microcontroller-based control section.software support:at command execution and monitoring software.sim manager utility software.data logging and communication terminal utility.pc-based gui software for sim data communication experiments.trainer features:fault simulation facility for troubleshooting experiments.simulation of faults such as:sim not detectedclock failurevcc failurereset failuremultiple on-board test points for signal observation.test points for:sim rstsim_clksim iovccuart tx/rxsuitable for cro/dso signal monitoring.glass epoxy pcb with educational block diagram layout.compact tabletop enclosed cabinet design.construction:front panel with printed block diagram.banana test points and patching facility.standard accessories:gsm sim trainer unit.usb communication cable.rs-232 communication cable.power cord., microwave test bench with reflex klystron oscillatormicrowave source :relex klystron tube with klystron mountoperating frequency in x-band (8.2ghz to 12.4ghz)electronic tuning through repeller voltage controlsuitable for cw microwave generationklystron powersupply:regulated klystron power supply unitbuilt-in modulation facilityoverload and short circuit protectionoperates on 230v ac 10%, 50hz mains supplywaveguide components:isolator variable attenuatorfrequency meterslotted line section with tunable probecrystal detector mountmatched loadmovable short / terminationwaveguide stands and accessoriesmeasurement unit:solid state vswr meter with high sensitivityswr measurement facilitysuitable for detector output monitoringtechnical specification :frequency range : 8.2 ghz to 12.4 ghzwaveguide types : wr-90detector type : crys

CTN :45562952

01 Jul, 2026 43.22 Lacs

West Tripura - Tripura

Tender For supplying, installation, testing and commissioning of equipments for electrical measurement, electrical workshop, electrical machine & power system laboratory at ttaadc polytechnic institute, khumulwng, west tripura for the project "improvement of infrastructure in ttaadc polytechnic institute, khumulwng, west tripura, district under higher education department” under the nec scheme. (2nd call) - supplying, installation, testing and commissioning of electrical measurement, electrical workshop, electrical machine & power system laboratory equipments/machineries of electrical engineering department at ttaadc polytechnic institute, khumulwng, west tripura under the nec scheme "improvement of infrastructure in ttaadc polytechnic institute, khumulwng, west tripura, district under higher education department." (2nd call), kelvin double bridge trainer kitthe instrument should have following features : easy illustration of kelvins bridge digital display (dpm) for null detection online product tutorialthe instrument should have following technical specifications :dc power supply : +5vknown resistance : r1=100k , 20k , 10k r3=1k , 200 , 100 dpm : 2vdimensions (mm) : 240 w x 345 d x 110 hunknown resistance : 0.3 , 0.4 , 0.8 mains supply : 230 v 10%, 50 hz, whetstone bridge trainer kitthe instrument should have following features :sample : constantan, nichromeprovided with dc power supply compact designeasy to operatethe instrument should have following technical specifications:dc power supply:5vgalvanometerdeflection:30 - 0 30resistance:80 unknown resistance type: variablerange:0 - 10k wire samples: -constantan: 1mnichrome:1mfuse:500mamains supply: 90 - 275v, 50hzdimensions (mm):w 345 x d 240 x h 110, experimentation with de sautys and schearing bridgethe instrument should have following features: - a complete set up with all necessary accessories inbuilt 1 khz sine wave generator with variable amplitude null detector with dpmtechnical specification: -sine wave generatorfrequency range:1khz 10%amplitude control output: up to 15vppfuse:500 ma, s/bdpm:200 mvunknown capacitor:0.1 f, 0.22 f, 0.47 fmains supply:230v ac, 10%, 50hzdimension (mm):w 345 x d 240 x h 110, experimentation with maxwells bridgethe instrument should have following features : illustration of both maxwells inductance bridge and maxwells inductance-capacitance bridge on a single board inbuilt 1 khz sine wave generator with variable amplitude null detector with dpmthe instrument should have following technical specifications :mains supply : 230 v 10%, 50 hzdc power supply : +12v, -12vsine wave generatorfixed frequency : 1khz 5%amplitude control range : upto 20vppunknown inductors : 10 mh, 20mh, 30 mh, 56 h, 24 h, 12 hdpm : 200mvunknown internal resistance : 470w, 10 , 20 , 30dimensions (mm) : w 240 x d 345 x h 110, measurement of three phase active & reactive power with single phase wattmeter technical specifications:analog meters: analog voltmeter, range : 300v analog ammeter, range : 2a analog wattmeter power supplies: operated on mains power 415v, 50hz +10%components are mounted on the panels are: capacitive load inbuilt inductive load inbuilt resistive load (external)salient features: three phase power light indicator for mains. front panel built with high class insulated bakelite sheet with sticker well printed circuits and symbols. mcb for short circuit protection connections are brought out through 4mm colored safety sockets. patch cords 4mm. the trainer is housed in metal cabinet. size of the trainer set 36 x 24 , power & power factor measurement by ct & pt in three phase circuittechnical specifications:power supplies: ac power supply 0-415v at 4a operated on mains power 415v, 50hz +10%digital meters: digital voltmeter digital ammeter , digital wattmeter (analog), digital power factor meter components are mounted on the panels are: 3 phase capacitive load (inbuilt) 3phase resistive load (external) 3phase inductive load (external) emergency stop

CTN :45541202

23 Jun, 2026 NA

Chennai - Tamil Nadu

Tender For purchase of tanche - lab equipments for eee and ece department - purchase - lab equipments for eee department electronics lab, single phase to single phase cyclo converter kit single-phase bridge cycloconverter power devices: scr/triac based input supply: 230 v ac, 50 hz step-down isolation transformer 230 v / 12 v output: 12 15 v ac, frequency: 0 25 hz (adjustable),firing angle control circuit and frequency control circuit to be provided built-in resistive load, terminals to be brought on ms panel with necessary symbols and circuits, pwm based step down dc chopper using mosfet/igbt kitpwm based step-down dc chopper (buck converter) power device : power mosfet / igbt based switching circuit input supply : 24 v dc to 110 v dc or derived from 230 v ac mains through rectifier unit output voltage :(0 to vin) variable dc output current : up to 5 a dc maximum with suitable load resistor (r load) pwm duty cycle control provided pwm generation and control circuit inbuilt gate driver circuit provided, single phase single pulse / sinusoidal pwm inverter using mosfet/igbt kittype : single phase pwm inverter trainer power device : mosfet / igbt based inverter circuit input supply : 12 24 v dc output voltage : 30 v rms ac output phase : single phase output frequency : 0 50 hz variable output power : 100 w single pulse pwm operation sinusoidal pwm (spwm) operation variable frequency control pwm generation and firing control circuit inbuilt gate driver circuit provided test points provided for waveform observation and analysis built-in resistive load provision, on / off control of lamp using solid state relay kittype : solid state relay (ssr) trainer kit control/input voltage : 12 v / 24 v dc or up to 30 v dc output load voltage : 230 v ac, single phase load control : on/off control of ac lamp load solid state relay based switching circuit opto-isolated input control built-in ac lamp load manual on/off switching arrangement led indication for input and output status, speed control of ac motor using vfd drive module with ac motortype : variable frequency drive (vfd) module input supply : 415 v ac, three phase, 50 hz output : three phase variable voltage and variable frequency ac output 1 hpthree phase squirrel cage induction motor415 v ac 50 hz &1440 rpm control technique : pwm / spwm based control frequency range : 0 50 hz variable digital display for frequency and operating parameters start / stop and forward / reverse control, acceleration and deceleration control facility powder coated ms control panel tabletop / floor mounted laboratory type setup clearly labelled circuit diagram and control switches proper insulated terminals and earthing arrangement, purchase - lab equipments for eee department electrical machines lab, three phase transformertype: three phase transformer, rating: 3 kva input voltage: 415 v ac, 3-phase, output voltage: 230 v ac, 3-phase frequency: 50 hz winding material: copper wound insulation class: class b or higher duty: continuous duty suitable for laboratory usebench/floor, dc stepper motor drive kit with stepper motorinput supply : 230 v ac, 50 hz stepper motor : permanent magnet / hybrid type with suitable driver circuits. motor operating voltage : 12 24 v dc variable speed control forward and reverse direction control full step and half step operation manual / automatic pulse generation facility built-in regulated dc power supply led indication for phase sequence and status test points provided for waveform observation start / stop control switches to be provided overload and short circuit protection to be provided mounted on compact powder coated cabinet with printed circuit diagram proper insulated terminals and interconnecting leads to be provided patch chords for interconnection., dc servo motor drive kit with servo motorinput supply : 230 v ac, 50 hz servo motor type : dc servo motor with feedback arrangement motor operating voltage : 12 24 v dc controller type : microcontroller based servo drive contr

Central Government/Public Sector

CTN :45527147

23 Jun, 2026 NA

Paschim Medinipur - West Bengal

Tender For providing of repair, maintenance, and installation of plant/ systems/equipments (version 2) - office space; anchor cable roller defect and stbd anchor capstan drum to be rectified, replace of book self at captain cabin, renew of locking mechanism of bascca locker..

Central Government / Public Sector

CTN :45555714

23 Jun, 2026 NA

Nanded - Maharashtra

Tender For supply of high voltage hrc fuse base (holder) suitable for hrc fuse 2amps, 1.2 kv, cylindrical type, size: 8x50 mm used in primary of 200va control transformer of switch board cabinet of lhb ac coaches confirming to 'rdso/pe/spec/ac/0184-2015 (rev.'2) dated 10.02.2026. [ warranty period: 30 months after the date of delivery ] ]

Central Government/Public Sector

CTN :45549262

24 Jun, 2026 NA

Mumbai - Maharashtra

Tender For supply of hrc cylindrical fuse link 4 amp ( with out holder ),1.2 kv size 50x8 mm for voltage control as per s.no 13 and item code fo1 to fo6 and place of installation s1f90 tos1f96 of bill of material of rdso spec no: rdso/pe/spec/ac/0184-2015(rev.-1) used for voltage control fuse of lhb type ac coaches confirming to rdso spec no. rdso/pe/spec/ac/0184-2015 (rev-1) suitable for lhb type ac coaches switch board cabinet [ warranty period: 30 months after the date of delivery ] ]

Central Government/Public Sector

CTN :45561586

23 Jun, 2026 NA

Multi City - Maharashtra

Tender For auction sale of depot ferrous scrap - scrap and unserviceable condemned mix m.s. coach cutting items & various types of similar items such as , body side door m.s., p.o.h. coaches realised corroded pieces,air brake,clamp,pipe pin,m.s. door of battery box ,m.s.ventilation door,foot plate,ice box,m.s. spring,m.s. angle,and m.s. lader with rubber coating,coach cuttings, coach doors , seat frames , bearth/seat frames, light head stock cuttings, train lighting fittings,, side lamps lamp hand signal, fittings, tail lamp fittings, cft/tl light fittings, ictp/ icfp empty swich boxes tail lamps, tube light fittings, tube light jali, fan blades, fan jali, fan guards fan ribs, fan rings, empty power pannels, signal platform, destination board, valley board, letter board,ms signal base, loc, inercooler, nut bolts and other hardwares, m s furniture.m s wheel stand,window grill, ms measuring cans, tins, racks, break pipes, silencer of tower wagon, dust bin, ms pipe and cut pcs. of ms pipes, rods, ms bars released from broken constructin, compressor spring, wire /coil springs, ms rope wire, pcs. of brake beam pipes, stands, m s ferrous light junk kachra related scrap i.e ms angles, chanels, flats pcs. of cable racks/laders ms brackets, dust bin stand, tin fuse box, fire extinguisher, empty glow sign boards, empty electrical pannel, ms stand, oven, earthing patti, empty cable tray, fly catcher, galvanized patra / sheet and their cut offs, cut pieces of ms cupboards, rack etc, plain/ corrugated / toughened sheets and its cut pcs. such as strips, patties, patties, patra, rings, coils, boxes, ms brake control cover, patra, angle, small springs, pins, wire, electric point, shunt signal unit and post. signal ladder , location box, earth electrode , signal post and base , signal unit, point roddings , junction route indicator and cut pieces in mijscellaneous, coil, collapsible doors and shutters and their parts/cut offs, grills , channel grills, compound /bridge jali with or without frame, ms fencing and their parts, fencing patties, angle pcs., frames,wire mesh, g.i./ms pipes and tubes , tubes and their cut pcs, damaged gi/ ms pipes/ rods/ tubes and their pcs. , ms/galvanised boxes, junction box, switch boxes, empty convertor, payary (steps), filters, rings, nut bolts, u clips, pipe pin, gate m/c dismentled, liquid container, damaged video boxes and their cut offs, crt cabinet, location boxes , jumper, jumper box,ground connections , basket steel, water cane/ material carring trolley,steel baskets, containers, trays, frames, stretchers, nets/ jali , released ground connection, halogen, panto pans, compressor spares, dust guard, air filters and filter covers, ms/gi duct and its parts,insulating armature of signal cable, hand lamps, side lamps, signal lamps petromax, hs lamp, clamps, signal post,signal platform, signal base, ms/ gi wire/ coil, funnels, wall protectors, boxes, iron bar pcs released from broken construction , desmantelled weighing machines parts/ covers etc. ms pipe with or without ci attachment, bins, plates, rings, spares/ parts /body of weighing machine , platform weighing machine and its parts, pressure switches and other switches , signal parts, location boxes,panel board,fuse box,mdb board,pedestial for lc gate and their cut parts and other ferrous miscellaneous scrap items with or without minor nf/ss/ wooden / rubber / rexine attachments of sorts and sizes, broken and damaged, u/s for rly. use, excluding items: rail and rail pcs., axles and axle pcs., wheel tyre and pcs., cam shafts, helical springs, bolster springs, buffer plungers, face plates, axle box housings/ casings, brake beams, fish plates, screw couplings/draw bar hooks, break beams, reservoir tanks, st sleepers and other various types of similar ms items etc. note: 1. hammering/ pressing/ cutting is permitted for easy loading only, 2. if found any non-ferrous item will not be delivered (qty approx)

Central Government/Public Sector

CTN :45561588

23 Jun, 2026 NA

Multi City - Maharashtra

Tender For auction sale of depot ferrous scrap - scrap and unserviceable condemned mix m.s. coach cutting items & various types of similar items such as , body side door m.s., p.o.h. coaches realised corroded pieces,air brake,clamp,pipe pin,m.s. door of battery box ,m.s.ventilation door,foot plate,ice box,m.s. spring,m.s. angle,and m.s. lader with rubber coating,coach cuttings, coach doors , seat frames , bearth/seat frames, light head stock cuttings, train lighting fittings,, side lamps lamp hand signal, fittings, tail lamp fittings, cft/tl light fittings, ictp/ icfp empty swich boxes tail lamps, tube light fittings, tube light jali, fan blades, fan jali, fan guards fan ribs, fan rings, empty power pannels, signal platform, destination board, valley board, letter board,ms signal base, loc, inercooler, nut bolts and other hardwares, m s furniture.m s wheel stand,window grill, ms measuring cans, tins, racks, break pipes, silencer of tower wagon, dust bin, ms pipe and cut pcs. of ms pipes, rods, ms bars released from broken constructin, compressor spring, wire /coil springs, ms rope wire, pcs. of brake beam pipes, stands, m s ferrous light junk kachra related scrap i.e ms angles, chanels, flats pcs. of cable racks/laders ms brackets, dust bin stand, tin fuse box, fire extinguisher, empty glow sign boards, empty electrical pannel, ms stand, oven, earthing patti, empty cable tray, fly catcher, galvanized patra / sheet and their cut offs, cut pieces of ms cupboards, rack etc, plain/ corrugated / toughened sheets and its cut pcs. such as strips, patties, patties, patra, rings, coils, boxes, ms brake control cover, patra, angle, small springs, pins, wire, electric point, shunt signal unit and post. signal ladder , location box, earth electrode , signal post and base , signal unit, point roddings , junction route indicator and cut pieces in mijscellaneous, coil, collapsible doors and shutters and their parts/cut offs, grills , channel grills, compound /bridge jali with or without frame, ms fencing and their parts, fencing patties, angle pcs., frames,wire mesh, g.i./ms pipes and tubes , tubes and their cut pcs, damaged gi/ ms pipes/ rods/ tubes and their pcs. , ms/galvanised boxes, junction box, switch boxes, empty convertor, payary (steps), filters, rings, nut bolts, u clips, pipe pin, gate m/c dismentled, liquid container, damaged video boxes and their cut offs, crt cabinet, location boxes , jumper, jumper box,ground connections , basket steel, water cane/ material carring trolley,steel baskets, containers, trays, frames, stretchers, nets/ jali , released ground connection, halogen, panto pans, compressor spares, dust guard, air filters and filter covers, ms/gi duct and its parts,insulating armature of signal cable, hand lamps, side lamps, signal lamps petromax, hs lamp, clamps, signal post,signal platform, signal base, ms/ gi wire/ coil, funnels, wall protectors, boxes, iron bar pcs released from broken construction , desmantelled weighing machines parts/ covers etc. ms pipe with or without ci attachment, bins, plates, rings, spares/ parts /body of weighing machine , platform weighing machine and its parts, pressure switches and other switches , signal parts, location boxes,panel board,fuse box,mdb board,pedestial for lc gate and their cut parts and other ferrous miscellaneous scrap items with or without minor nf/ss/ wooden / rubber / rexine attachments of sorts and sizes, broken and damaged, u/s for rly. use, excluding items: rail and rail pcs., axles and axle pcs., wheel tyre and pcs., cam shafts, helical springs, bolster springs, buffer plungers, face plates, axle box housings/ casings, brake beams, fish plates, screw couplings/draw bar hooks, break beams, reservoir tanks, st sleepers and other various types of similar ms items etc. note: 1. hammering/ pressing/ cutting is permitted for easy loading only, 2. if found any non-ferrous item will not be delivered (qty approx)

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