Manual D.c. Welding Refctifer

FeaturesPiper in all positions.Non ferrous metals.Low alloy, corrosion, heat and creep.Mild steel and low alloy steel at site where welds of high radiographic standards are required.Mild steel and low alloy steel in lighter gauge resisting steel i.e. stainless steel.ProcessWeld Aid India Sr Series, of welding rectifiers are forced air cooled, silicon type and are designed to provide a DC welding current where 3 phase, 50 HZ AC mains power is available at voltage ranging from 380 to 440 Weld Aid India sets are also suitable for Argon are welding where DC is necessary and are supplied with built in high frequency suppressor. 600 SR welding rectifiers is suitable for gauging also.Technical Specifications MODEL SR-200 SR-300 SR-400 SR-600 Input Supply Voltage 380/415/440 380/415/440 380/415/440 380/415/440 Primary current at max. output 20A 30A 40A 68A Output Open circuit Voltage 85 85 85 85 Max.continuous current at 100% duty cycle 150 225 300 420 Max.continuous current at 80% duty cycle 200 300 400 600 KVA-Max continuous 9.8 15 20 30 KVA-Max. 13 19.5 26 43.2 Welding current range(in two ranges) 20-200A 30-300A 40-400A 60-600A Spench to which conforms IS:4559 IS:4559 IS:4559 IS:4559 General Max.ambient temp.to which rating apply 40oC 40oC 40oC 40oC Class of insulation E E E E Type of cooling Forced air cooled Forced air cooled Forced air cooled Forced air cooled Approx.dimension (LxWxH) 740x540x540 990x584x762 990x584x762 1066x711x889 Approx.weight (Kg.) 190 305 355 450