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What causes the clicking sound when an inverter arc welding machine is powered up and turned on/off?

Bazİstasyonu

Aug 6, 2022
4
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Aug 6, 2022
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I know that when inverter arc welding machines are idle, inside the AC Rectifier Unit card electricity fill the tank capacitors by flowing through the components such as NTC/PTC/Varistor.

When starting welding, the machine draws a lot of current as soon as the electrode hits the metal and the clicking sound comes from the machine and the sound could be coming from the relay because it closes when you draw a lot of current.

Can anyone explain the working principle? I do not know the details.
 
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