Network Adapter - Voltage Requirements

It is imperative that the Operating Voltage must match from one transformer's high side to the next transformer's low side.

In the example below, the step transformer at the far left (in red) has a high side voltage (operating voltage) of 12.5kV and a low side voltage of 7.2kV. The step transformer's high side voltage matches the operating voltage of the upstream primary and the step transformer's low side voltage matches the operating voltage of the downstream primary (7.2kV).