Digital Switchboards Tenders

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Central Government/Public Sector

CTN :38157116

27 Dec, 2024 1.30 Crore

Agra - Uttar Pradesh

Tender For corrigendum : special repair for renewel of e/m items and plant/ machinery held in charge of age (e/m) rnd agra cantt under ge (i) rnd delhi - supply , installatation , testing and commissioning of diesel driven generating set to give an out put of 500 kva, 415v ac supply 3 phase, 50 hz, 4 wire radiator mounted on common base plate complete with fuel tank, vibration damper and other accessories with fuel tank viberation damper and other accessories with acoustic enclouser as per latest cpcb-iv norms and amf panel including pcc foundation work as per oem reccommandation and taking out the old dg set from the location and deposited to mes store yard complete all as specified and directed, interanally comprising of following :-(a) diesel driven engine :- developing a net output suitable matched to give a net rated output of minimum 604 hp/suitable to drive 500 kva alternator, at 0.8 power factor 415 volts. the engine should be capable of delivering the required output at 1500 rpm, water cooled, self start, with a provision of 10% overload for one hour in every 12 hours with the following accessories and all as specified.(i) fly wheel to suit flexible coupling and fly wheel housing.(ii) air cleaner complete as per manufacturer specification. (iii) fuel injection pump. (iv) flexible coupling with guard, nuts and bolts.(v) fuel filter with mounting. (vi) oil filter with mounting.(vii) starter motor as per manufactures design.(viii) exhaust, silencer industrial type with exhaust pipe suitable length.(ix) batteries 12 volts 2x180 ah maintenance free batteries with copper lead, terminals etc.(x) instrument panel complete with microprocessor based controller comprising shut down valve indication, lcd hour counter indication, rpm indication , led lamps for fail to start, over speed /under speed . low lub oil pressure, high engine coolant temperature. gaugae.(xi) dynamo/alternator suitable rating., (b) alternator :-the above engine will be coupled through flexible coupling on an indigenous alternator mounted on a strong steel fabricated common base frame suitable for mounting in an acoustic enclousre. the alternator will be 3 phase 50 hz 1500 rpm self regulating self exciting type and have class h insulation of stator and rotor windings and generate 500 kva output at .8 power factor 4 wire 415 volts ac supply under ntp condition with a provision of 10% overload for 1 hour in every 12 hrs running. the alternator would be screen protected and fitted with shield ball/roller bearing, automatic voltage regulator.(c) control panel :- s&f amf (automatic on mains failure) control panel cpri approved outdoor ype kiosk water, dust and vermin proof and fabricated out of 3.15 mm thick crca sheet and 50mm x 50mm x 6mm angle iron powder coated suitable for 415 volts 3 phase 50 hz ac supply with and incl the following :-(i) mccb of suitable capacity(ii) necessary relays, times and power contractors of suitable rating/capacity for auto on-off the dg set and changeover of the load in case of power failure.(iii) digital mulfifunctional meter for phase wise reading of amps, voltage kwh and frequency -01(iv) internal wriring with single core solid copper conductor cable of appropriae gauge incl mumbering ferrules and control fuses.(v) earthing terminals 02 nos(vi) auto/manual start switch to by pass auto start.(vii) battery charging system suitable for charging for charging the battery provided with the dg set incl boost/stickle switch and system, dc voltmeter digital type., (d) fuel tank :- one no built in sheet metal steel tank mounted inside the acoustic encloser and of adequate capacitynot less than 740 ltr with inlet and outlet connection including the following :-(i) level indicator with float and gauge.(ii) fuel piping for fuel supply to engine and over flow to tank(iii) fuel strainer(e) acoustic enclosure :- enclousre be designed for reducing the sound level up to 75+/ 5db (average) as per is 8528 part 10 and as per approved cpcb morms. the acous

CTN :38505856

30 Dec, 2024 15.38 Lacs

Agartala - Tripura

Tender For supply of laboratory and scientific equipment - laboratory and scientific equipment, dc-dc bidirectional buck boost converter for ev charger with controller (details as per sl no 1 at annexure-b)., single phase, 5 level diode clamped inverter with inbuilt fpga controller (details as per sl no 2 at annexure-b)., single phase, 5 level cascaded symmetric h-bridge inverters with inbuilt fpga controller (details as per sl no 3 at annexure-a)., study of vi characteristics of scr, triac, igbt and mosfet (details as per sl no 4 at annexure-b)., study of single-phase full wave-controlled rectifier circuits and semi converter (mid-point and bridge type) with r and r-l load. (details as per sl no 5 at annexure-b)., dc-dc buck boost converter (details as per sl no 6 at annexure-b)., power factor correction (pfc) based setup and applications in smps boost converter with power factor correction (details as per sl no 7 at annexure-b)., three phase scr based full wave rectifiers. (details as per sl no 8 at annexure-b)., 3-phase shunt active power filter (sapf) (details as per sl no 9 at annexure-b).

State Government

CTN :38500041

06 Dec, 2024 35.00 Lacs

Munger - Bihar

Tender For supply of machines and laboratory equipment for electrical & electronics engineering lab in the premises of government polytechnic munger - 8051 microcontroller trainer , lcd 16x4 alphanumeric display , 4 x4 matrix keypad , dac0808 8-bit digital to analog d/a converter ic package dip-16 , ic 741 , adc0808/0809 , stepper motor , dc motor , at89s52-24pi /at89552 ic atmel 8051 microcontroller 40 pin dip mount chip 8 bit microprocessor 8kb isp(in system programming) flash memory up to 33mhz clock frequency speed , basic digital communication training system , advanced digital communication training system , analog communication training system , 10 khz to 3 ghz spectrum analyser with tracking generator , 100 mhz dual channel digital storage oscilloscope , , microprocessor kit (8085 based) , 8086 microprocessor training for study , intel 8051 microcontroller kit with data card , , digital storage oscilloscope 50 mhz dual channel , thyistor trainer kit for vi characteristic , , bh curve measurement setup b-h curve measurement setup , choke coil , 1- phase power factor meter , 1-phase variac , v-i characteristics of diode kit , v-i characteristics of zener diode kit , half wave rectifier kit , full wave rectifier kit , full wave rectifier kit , capacitor filter kit , inductive filter kit , input & output characteristics of transistor (bjt) , fet characteristics kit , fet characteristics kit , zener diode regulator kit , transistor series & shunt regulator kit , single stage common emmiter amplifier , two stage rc coupled amplifier , frequency response of fet amplifier , frequency response& bandwidth of feedback amplifier , colpitt oscillator kit , rc phase shift oscillator kit , rc integrator and differentiator opamp kit , clipper and clamper circuit kit , astablemultivibrator kit , mono stable multivibrator kit , bistablemultivibrator kit , ujt relaxation oscillator kit , plc demonstration kit for lab , ac/dc position control trainer kit , pil controller trainer kit using op amplifier and r-c circuit , plc demonstration kit for lab , ac/dc position control trainer kit , pil controller trainer kit using op amplifier and r-c circuit , multiple leds with a loop and an array kit , potentiometers control kit , servo motor control using pwm kit , temperature sensor interfacing and sending its reading over serial port kit , 12c light sensor interfacing and sending its reading kit , arduino kit , servo motor , led bulb , usb cable , power jack , intel 8051 microcontroller kit with data card , ic 555 timer , 9v dc battery , 1.5 v dc battery , variable resistor , variable capacitor , temperature sensor , ir sensor , ldr , motion sensor , alcohol sensor , pressure sensor , proxy sensor

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