Re: The Spanish Grid Drop-out - recently released information.

Bill Sloman <bill.sloman@ieee.org> wrote:

On 16/05/2025 3:51 am, john larkin wrote:

On Thu, 15 May 2025 12:37:24 +0200, "Carlos E.R."
<robin_listas@es.invalid> wrote:
 

On 2025-05-15 08:18, Bill Sloman wrote:

On 15/05/2025 5:14 am, Carlos E.R. wrote:

On 2025-05-14 16:16, Glen Walpert wrote:

On Tue, 13 May 2025 07:50:36 -0700, Don Y wrote:
>

On 5/13/2025 6:26 AM, Glen Walpert wrote:

 

Another very wild idea was increasing the frequency to around 600Hz. It
would make transformers and all coiled things smaller. Planes do this.
Possibly would also radiate more. And would not help with control.

 
But our clocks would run ten times faster.
 
And everything would hum.

 
This doesn't happen in aircraft.

The ambient noise level in an aeroplane is much higher than in a house
on a quiet night. (Also, look up Fletcher-Munson curves to see why 600
c/s would be a lot worse than 50 or 60 c/s.)

Alternators for 600 c/s are feasible at a few kW in aircraft but they
are difficult to scale up to power station size.

Another problem with large-scale distribution at 600 c/s would be the
inductive reactance of cross-country power lines and the need for
special alloys and thin laminations to reduce core-losses in
transformers.


--
~ Liz Tuddenham ~
(Remove the ".invalid"s and add ".co.uk" to reply)
www.poppyrecords.co.uk