Lynx {Glenn Jones} wrote:
>
> Why is this done? I mean why does the power line need to be EXACTLY 60Hz?

To the best of my knowledge, everything that runs off the grid is
'tuned' to 60Hz to get the best power transfer across the system.
Transformers, motors etc. If this frequency was to alter, a lot of
eqipment would complain. Even the weights clamped onto the overhead
wires near the insulators are tuned to dampen oscillations at this
frequency.

The power companies may complain too because the power meters would give
incorrect readings.

--
Best regards

Tony

'The Engine' - Design your own programmer.

http://www.picnpoke.com
Email picnpoke@cdi.com.au