Report2Marty
Student
Are these the same transformer? Also, when you say no connectivity across the isolation transformer, does that mean no earth ground should be connected to it or it’s frame?I also have a green earth ground cable that connects all the metal frames of my devices together (transformer, power supply, monitor chassis) and goes to my outlet earth ground. This is not necessary for operation, but is a fault protection. The earth ground cable will be tied to your AC neutral line in your house, but there should be no connectivity across the isolation transformer.