Tender For supply of inverter based three phase shielded metal arc welding rectifier 400 amp with 10 meter remo te control unit with each machine as per the enclosed specification as annexure-a [ warranty period: 24 months after the date of delivery ]
Tender For supply of portable single operated rectifier type conventional dc arc welding set-600 ampere capacity suitable for manual arc welding process with warranty/guarantee and test certificate. technical specificatio n as given below: 1. maximum hand welding current @ 60% duty cycle ; 600a and minimum hand welding current @60% duty cycle: 120 a 2. open circuit voltage : 70v (max) and operating arc voltage: 25-44 volt. 3. 3-phase 50 hz, rated input voltage: 3 tapings- 380/415/440 volts. 4. type of cooling : forced air cooled - heavy duty exhaust fan with copper windings, metal body and fan blades. 5. class of insulation and windin g materials : class h insulation with both primary and secondary copper windings. 6. specification to which it conform : is 4559- latest version. 7. type of rectifier- silicon diode. full wave 3-phase bridge rectifier: ty pe with current regulator, safety norms: earth fault facility & vrd facility. make:- essab, berco, ador or equivalent. [ warranty period: 30 months after the date of delivery ]
Tender For supply of inverter based three phase shielded metal arc welding rectifier 400 amp with 10 meter remo te control unit with each machine as per the enclosed specification as annexure-a [ warranty period: 24 months after the date of delivery ]
Tender For sensors and measurement lab equipment - purchase of sensors & measurements laboratory, voltage, current and power measurement in single phase ac circuit digital power monitor- 10 asingle phase variac 0-240 v, 5 arheostat as load -500 , 5 avoltmeter 0-300 vammeter 0- 5 awattmeter analog 0-3000 welectrical panel & wiring , measurement of current in 3 phase circuit using single ammeter ammeter selector switch 440 v, 6 a 3 loading 5 a 3 phase variac 5 acurrent transformer 3 nos.ammeter 0-10 aelectrical panel, wiring & switches, measurement of resistance using wheatstone bridge necessary connecters provided to connect four arms range of measurement: 5 - 100k accuracy (min to max.): +0.2tolerance: +5%one digital meter provided to indicate the balance conditionsbuilt-in power supplynecessary patch chordsdecade resistance box, measurement of earth resistance by earth tester suitable connectors for 4 main arms and 2 adjacent armspotentiometer to keep the bridge in balance condition.inbuilt 1 khz oscillatormeasuring range : 25mh - 500mhsensitivity : +2mhbulit in audio amplifier with speakerbuilt-in power supplynecessary patch chords decade inductance box, measurement of inductance using anderson bridge suitable connectors for 4 main arms and 2 adjacent armspotentiometer provided to keep the bridge in balance condition.inbuilt 1 khz oscillatormeasuring range : 25mh - 500mhsensitivity : +2mhbulit in audio amplifier with speakerbuilt-in power supplynecessary patch chords decade inductance box, measurement of capacitance using schering bridge suitable connectors with 4 arms providedprovision to connect the unknown capacitance at one armtwo potentiometers provided to keep the bridge balance condition.inbuilt 1 khz oscillator and audio amplifier with speakermeasuring range: 0.001uf - 2.0ufsensitivity: +0.1uftolerance : +5%decade capacitance box , temperature measurement thermocouple trainer kit sensor type: thermocouplerange: upto 99 degree centigradetemperature source: water bath ( 1 kw)bridge: full bridge configurationsignal conditioning output: (0-5) vdcdisplay: 31/2 digital led display & analog thermometeroperating voltage: +12 vdc. -12 vdc, + 5 vdc, - 5 vdctest points: 2 mm sockets, temperature measurement rtd trainer kit sensor type: rtd (pt100)range: up to 99 degree centigradetemperature source: water bath ( 1 kw)bridge: full bridge configurationsignal conditioning : (0-5) vdcdisplay: 31/2 digital led display & analog thermometeroperating voltage: +12 vdc. -12 vdc, + 5 vdc, - 5 vdctest points: 2 mm sockets , behavior of proximity sensors proximity sensor of inductive provided to detect the metallic object. capacitive sensor provided to detect both metal and non-metal object.switching circuits provided to actuate the buzzer and relay.inbuilt regulated power supply.housed in a powder coated cabinet, linearvariabledifferentialtransformer measurement trainer type: inductiverange: (0-25) mmexcitation: 4 khz, 1 v pp sine wavecalibrated range: (0-20) mm or + 10 mm/-10 mmsignal conditioner output: 0-5 vdc or +5/-5 vdcdisplay: 31/2 display digit ledmicrometer range: (0-25) mmtest points: 2 mm sockets, performance of ultrasonic and moisture sensors arduino uno board ultrasonic sensor to measure the distance.moisture sensor to measure the humiditylcd displayselector switch for display of sensor output.regulated power supplymount in a closed cabinet
Tender For supply of metal rectifier/battery charger 230 volt ac/ 110 volt dc, 60 amp warranty- 30 months specification attached as an nexure 'a' [ warranty period: 30 months after the date of delivery ]