Tender For supply of portable single operated rectifier type conventional dc annual rate contract welding set-600 ampere capacity suitable for manual annual rate contract welding process with warranty/guarantee and test certificate. technical specification 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 annual rate contract 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 winding 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: type with current regulator, safety norms: earth fault facility & vrd facility.
Tender For corrigendum : supply of digital rpm meter : - potentio meter 220k with knob 3w single turn linear , digital rpm display meter 7seg. disply lcd make selec cadel omron only , potentioneter rsistance 10k with know haveing dial indicator and lock potentiometer should be of locable type , s.ph.bridge rectifier 101 pb 100l , tel brush plug tsn 6 16 , single saddle 16 size 16 , pin type term. end insul. 1.5 mm sq. , pilot lamp holder circular green , pilot lampholder circular white , ammeter 72x72 0 to 5o amp
Tender For supply of load cells of various ranges , digital panel meters voltage and current , digital line frequency indicator , d.c. regulated power supply , digital insulation tester , digital l.c.r. bridge , operational amplifier trainer , trainer on basic digital electronics , trainers on power supplier half wave rectifier , scr driven controlled power supply trainer , discrete component trainer with following seven basic modules , trainer on rs485 to rs232 converter , calibration test bench for ac and dc voltmeter , networking toolkit