When replcaing a cord on PW transformers, where should the polaraized side of the plug be connected to? I guess if I had multiple transformers connected maybe it doesn’t matter as long as it’s consistent to keep them in phase?
thx, Don
You’re right; it doesn’t matter except for consistency of phase. I follow the convention of having the output in phase with the input, where the input voltage is relative to the grounded conductor (white) and the output is relative to whichever side of the secondary will be the layout common, that is, connected to the outside rails. For the 1033, that would usually be terminal A.
A way to set it up is to plug the transformer in. Then connect the A terminal to ground. (The screw on the outlet cover plate is probably grounded. The round pin in the outlet is–should be–ground. The wider of the two flat pins should also be ground.) Then, using a voltmeter with about a range of at least 150 volts, measure the voltage between the C terminal and the smaller of the two flat pins in the outlet. If it is somewhat less than 120 volts, you’ve got it right. If it is more, swap the wires of the line cord and check it again.
Be very careful probing around the outlet with your voltmeter!