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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 diode assembly silicon - negative base to emd part no. 8485245 blw part no. 18380050 [ w arranty period: 30 months after the date of delivery ]
Tender For bid to ras supply of silicon power diode, base with 20mm stud, polarity reverse size: 400a, 1600 piv , silicon power diode, base with 20mm stud, polarity normal size: 400 a, 1600piv , 3 thyristor module, non isolated base size: 130a, 400 piv , drg: 200a 400 piv rev: 3 thyristor modules, non isolated base 200 a 400piv
Tender For supply of diode silicon free wheeling 840 rev. volts rms 250 amp forward to emd part no.84529 52. [ warranty period: 30 months after the date of delivery ]
Tender For supply of diode assembly.. silicon - negative base to emd part no. 8485245 and to dlw part no.1838 0050 for wdp4/wdg4 locos, emd part drg.no.8485245 rev.c. [ warranty period: 30 months after the d ate of delivery ]
Tender For supply of diode assembly, silicon - positive base to emd part no. 8413522 and to dlw part no. 1838 0062 for wdp4/wdg4 locos [ warranty period: 30 months after the date of delivery ]