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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- silicondiode. full wave 3-phase bridge rectifier: type with current regulator, safety norms: earth fault facility & vrd facility.
Tender For supply of silicondiode type no. sh 30 c725 of m/s hind rectifier or similar. as per drg. no. m/s hind rectifier type sh 30c 725 specn: m/s hind rectifier type sh 30c 725 or similar. [ warranty period: 30 months after the date of delivery ]