>Bob Ammerman:
>I do work with power plants in the US, control systems for major hydro
>facilities.

I have always been curious whether in a big country with a unified grid
centralized timing signalling is used to sync the plants ? Because I think
that it is very hard to do it otherwise (plants syncing to what they
'see' on the outgoing lines) on a grid with significant time lags.

Peter

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