Tender For supply of pn or zener diode or led characteristics apparatus , verification of kcl and kvl , resistance in series and parallel apparatus , ohms law apparatus without power supply , ohms law apparatus with aluminum panel 2 digital panel meters and power supply , transistor characteristics apparatus , fet characteristics apparatus , half wave full wave and bridge rectifier apparatus , ripple factor apparatus , digital logic trainer , verification of truth table of logic gates using universal gates , flip flops using nand gates and ttl ics , four bit counters synchronous and asynchronous , four bit shift registers , encoder or multiplexer eight to one line , decoder or demultiplexer one to eight line , four bit analog to digital convertor , four bit digital to analog convertor , light intensity or phase control using scr or triac , scr commutation techniques , switching action of a bjt , single phase half wave full wave and fully controlled bridge rectifier or convertor using scrs , three phase half controlled bridge converter with r and rl load , three phase fully controlled bridge converter with r and rl load , single phase cycloconverter , instrumentation trainer using transducers , burdon tube pressure gauge trainer kit , strain gauge trainer kit with cantilever beam , lvdt trainer kit , speed measurement using photo electric and magnetic sensors , temperature sensors kit , measurement of water level using strain gauge , measurement of water level using capacitance transducer , ac servo speed torque characteristic trainer , dc servo motor speed torque characteristics trainer , stepper motor controller trainer , analog lab trainer bread board model , digital lab trainer bread board model , plc trainer , transmission line trainer abcd t and pi parameters ferranti effect load test , idmt over current relay testing kit electromechanical type , buchholz relay testing kit with compressor and oil , over voltage relay testing kit electromechanical type , over current and earth fault relay testing kit three phase static type , over current relay testing kit static type , measurement of power and power factor single phase and three phase , to study a typical bhk house wiring , four to one multiplexer and one to four demultiplexer , vapour compression refrigeration vcr test rig , water cooler setup , air conditioning test rig , domestic refrigerator , window air conditioner , split air conditioner , air cooler evaporative , tube cutter , pipe bender , flaring and swaging tool kit , reamer , brazing torch , manifold gauge set , vacuum pump , refrigerantrecoveryunit , refrigerant charging cylinder or electronic charging scale , refrigerant leak detector , digital clamp meter , digital thermometer , anemometer , tachometer , insulation material , refrigerants , recovery cylinders , weighing machine , electrical control panel , work benches , safety equipment
Tender For supply of refrigerantrecoveryunit consisting of 1) gas recovery machine with oil separator suitable for r134a and other category iii refrigerants working in 230 v ac, 50hz, 0.75 hp motor, 1450 rpm, oil-less, air-cooled, piston style compressor, with automatic safety shut off at 38.5 bar (min), recovery rate (liquid) not less than 1.6 kgs / min equivalent to value make model no. vrr12l-os - 1 no. 2 ) empty cylinder 10 kg - 1 no. 3) double gauge manifold - 1 no. make acceptable -appion, robinair, inficon, value [ warranty period: 30 months after the date of delivery ] ]
Tender For supply of 2.2 kw ac crane drive , 5.5 kw ac crane drive , 11.0 kw ac crane drive , 22.0 kw ac crane drive , 37.0 kw ac crane drive , 55.0 kw ac crane drive , 75.0 kw ac crane drive 3 phase, digital ac crane drive 2.2 kw, ac drive should be suitable for heavy duty operation of 2.2 kw. offered ac drive should be suitable for crane-hoist operation. if, separate software required for crane application, it must be clubbed with supply of material. ac input voltage: 380 to 480v ac 10%, 3 phase, 3 wire, 50 hz; mode of control: bi-directional fully controlled 3-phase ac; speed regulation: 1% of base speed; braking: suitable dynamic braking resistance and chopper unit (external or in-built); acceleration time: 0.1 to 1000s or better; deacceleration time: 0.1 to 1000s or better; overload: 150%-1min, 200%-3.0s; ambient temperature: 0 to 50 c (derating shall not occur below 50 c. in the event that derating occurs below 50 c, the supplier shall provide a higher-rated drive to match the requirement); rated current at 50 c: min. current should be 5.5 amps at 50 c; high starting torque at low speed: 200% starting torque at 0.3 hz; two analog inputs: two nos. analog inputs having signal voltages of 0 to 10 vdc or 4 to 20 ma (configurable); two analog outputs: two nos. analog outputs having signal voltages of 0 to +/-10 vdc or 4 to 20 ma (configurable); six digital inputs: pnp/npn; one relay output: with short-circuit and overload protection; two digital outputs: with short- circuit and overload protection; brake release signals: outputs braking signals based on inverter operating conditions to prevent cargo bed rollback and overrunning; load adaptive control: when the actual load level is lower than the configured load level, the system can be operated at a ratio-multiplied speed (in terms of the configured frequency), resulting in significantly better efficiency; load ) /bid number : gem/2026/b/7563714 * /dated: 20-05-2026 & & / bid document 1 / 29 frequency), resulting in significantly better efficiency; load limiter: maintains the safety and rescuability of suspended loads by stopping when excessive torque is detected and by allowing operation only in the direction opposite to that in which the excessive load was detected; cooling capacity degradation alarm: detects and displays cooling capacity drop due to cooling fin clogging caused by dust and cooling fan airflow reduction; igbt life expectancy forecasting: estimates the power cycle life expectancy of the main circuit s igbt semiconductor device temperature due to frequent acceleration and deceleration stoppages, and displays the estimate before the design life is reached; protection: it must have all standard protections like stall protection, instantaneous power failure, single phasing, over voltage, under voltage, over current, inverter overload, thermal overload etc; display console: it must have alpha numeric display console for programming of drive, fault display and operating condition; dynamic qr code: it must have dynamic qr code for trouble shooting; tuning facility: it must have auto tuning facility. this must enable perfect matching of motor coupled to load with regards to optimum acceleration time, deceleration time, speed regulation etc; drive programming software: suitable drive programming software along with necessary connecting cable and adapter for connection with laptop and drive should be provided to get online with the offered drive (laptop not in scope); automatic voltage regulation: it must have automatic voltage regulation function to maintain high starting torque even at reduced voltage; regenerative option: it must be capable of regenerative operation; communication protocol: modbus (rtu/serial) or ethernet (tcp/ip); make of drives: fuji- electric/yasakawa/schneider/abb only; suitable dynamic breaking resistance unit of 60% wattage rating of drive, however the value of resistance is to be decided by manufacturer as per their technical manual for crane-ho