14-04-2017, 09:17 AM
The Americans just did it there way.
They installed center tapped 220V transformers up poles close to the loads. 110V cables are short and less copper is used so the system worked. At the time of installation houses were spread apart so running through at a much higher voltage and stepping down with many small local transformers would be the answer. The system is not all that reliable as the transformers get struck by lightning and the poles get knocked down by drunk drivers but it would be cheap to install from new.
In the UK we use big transformers and longer low voltage feeders to the loads. The transformers are generally better protected and more reliable but more expensive.
They installed center tapped 220V transformers up poles close to the loads. 110V cables are short and less copper is used so the system worked. At the time of installation houses were spread apart so running through at a much higher voltage and stepping down with many small local transformers would be the answer. The system is not all that reliable as the transformers get struck by lightning and the poles get knocked down by drunk drivers but it would be cheap to install from new.
In the UK we use big transformers and longer low voltage feeders to the loads. The transformers are generally better protected and more reliable but more expensive.
