A system is disclosed for transmitting alternating current power and communication signals between a first location and a second location via a communication path which includes at least one inductive load (5) and at least one switching means (13) for swit...

In addition to measuring current flowing through the power circuit breaker (9), and the voltage on one side, an additional voltage measurement is taken on the other side. All measured signals are fed into a controller (18). There, with stored data characte...