From: liz@poppyrecords.invalid.invalid   
      
   Gelato  wrote:   
      
   > On Wed, 19 Feb 2025 11:01:03 +0000, Liz Tuddenham wrote:   
   >   
   > >> I was given a 220VAC 50Amp welder.   
   > >> I have 30Amp 220VAC portable generator.   
   > >   
   > > Are you saying the welder is rated at 50 amps input from the supply or   
   > > 50 amps output to the work?   
   >   
   > I do not know the answer to that question. I assume the plug is capable of   
   > 50 amps but also the welder has a huge duty cycle slider I can control.   
   >   
   > Obviously I'm not a welder so it's likely I can experiment to keep the duty   
   > cycle such that the main panel 30 amp circuit breaker won't blow.   
      
   I would have expected a welder described as "XXX Amps" to give XXX Amps   
   on the output, but 50 amps seems a ridiculously low output for a welder   
   that could be used on anything bigger than jewellery.   
      
   The duty cycle would have to be pulsed at a rate which is faster than   
   the delay time of the circuit breaker.  This might be possible if the   
   pulsing is electronic but a human welder would find it very difficult to   
   keep starting and stopping.  With a 'stick' welder (coated rods) this   
   would result in a totally unsatisfactory weld but with MIG or TIG it   
   might be possible to make something with thin sheet that stays together.   
      
      
   --   
   ~ Liz Tuddenham ~   
   (Remove the ".invalid"s and add ".co.uk" to reply)   
   www.poppyrecords.co.uk   
      
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