mrbuell
Member level 1
Hi all,
on my 240v welder the input power is routed to 2 bridge rectifiers one for each leg. It then goes to a bank of large capacitors and then outputs to the inverter board. My DMM reads +110VDC and -110VDC as expected when referenced to ground and 330VDC with a probe on each. The odd thing is, I read 240VAC on each leg with reference to ground. Is this a normal reading? I wasn't expecting a AC voltage at all.
on my 240v welder the input power is routed to 2 bridge rectifiers one for each leg. It then goes to a bank of large capacitors and then outputs to the inverter board. My DMM reads +110VDC and -110VDC as expected when referenced to ground and 330VDC with a probe on each. The odd thing is, I read 240VAC on each leg with reference to ground. Is this a normal reading? I wasn't expecting a AC voltage at all.