I have a center tapped 480V to 240/120V 5kV transformer that I am using to supply both 120V and 240V loads. On my 120V circuits, I read 120V line to nuetral, however I only read 90V line to ground. Does anybody have any ideas why this may be.
We have burned out a power supply and are not sure if this faulty line to ground voltage may be the cause. Would a faulty line to ground reading lead to the destruction of a power supply even with the L-N reading being 120V.
With an ungrounded transformer on the secondary, what would you expect to see for the L-G voltage?
We have burned out a power supply and are not sure if this faulty line to ground voltage may be the cause. Would a faulty line to ground reading lead to the destruction of a power supply even with the L-N reading being 120V.
With an ungrounded transformer on the secondary, what would you expect to see for the L-G voltage?