IS 2635 : 1997 dc electric welding generators

1 Scope

1.1 This standard lays down the requirements, tests and serviceconditions for dc arc welding (rotary) generators with droopingcharacteristics for manual, semi-automatic and automatic singlemetal-arc welding, and with windings with Class A, E, B, F or Hinsulation (see IS 1271).

1.2 Single metal arc welding generator with `constant potentialoutput, as opposed to `drooping characteristics, is not covered bythis standard.

1.3 Generators covered by this standard are assigned ratings onthe basis of duty cycle.

2 References

IS 325 : 1996Three-phase induction motors

IS 1271 : 1985Thermal evaluation and classification of electricalinsulation

IS 4691 : 1985Degrees of protection provided by enclosures for rotatingelectrical machinery

IS 4722 : 1992Rotating electrical machines