I just purchased a 100A Autotransformer, with 240V input from a generator and expecting two equal split phase outputs. Below are my readings (5v difference)
Generator output 235VAC
L1-N is 115VAC
L2-N is 120VAC
I have swapped my loads on the output and no help. Also removed PE coming from generator to remove any question of N/PE bonding in the home electrical panel. I see other posts where differences were noticed but none connected to 240 on the input. I can only explain this by the center tap of the transformer is not accurately placed. Any ideas? I have started RMA process.