Question

For the continuous welding operation using automated welding machine, the when the rated current and rated duty cycle are respectively 500 A and 50% welding equipment can be operated at a current of,

• A. 353 A
• B. 1000 A
• C. 1500 A
• D. 500 A

Answer 1

The correct option is A 353 A

For continuous welding, D = 100%

Ir = 500A

Dr = 50%

$I^{2}D=I_r^2{D}_r$

$\Rightarrow I^2\times 1={500}^2\times 0.5$

$\Rightarrow I=353A$