[142419] in North American Network Operators' Group
Re: Wacky Weekend: NERC to relax power grid frequency strictures
daemon@ATHENA.MIT.EDU (Owen DeLong)
Sat Jun 25 15:06:38 2011
From: Owen DeLong <owen@delong.com>
In-Reply-To: <4E0622DC.6040208@jason.roysdon.net>
Date: Sat, 25 Jun 2011 12:04:02 -0700
To: Jason Roysdon <nanog.20110127@jason.roysdon.net>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Jun 25, 2011, at 11:03 AM, Jason Roysdon wrote:
>=20
> On 06/25/2011 07:49 AM, Jay Ashworth wrote:
>> ----- Original Message -----
>>> From: "Jussi Peltola" <pelzi@pelzi.net>
>>=20
>>> On Fri, Jun 24, 2011 at 06:29:14PM -0400, Jay Ashworth wrote:
>>>> This is gonna be fun, no?
>>>=20
>>> If your definition of fun is spending a year watching an old =
microwave
>>> clock lose or gain a few minutes.
>>>=20
>>> I don't see how this has anything to do with syncing two generators.
>>> The grid is in sync, and if the frequency of the grid changes (as it =
does
>>> all the time) it will stay in sync. It has nothing to do with the
>>> absolute frequency.
>>=20
>> Perhaps I read the piece incorrectly, but it certainly sounded to =
*me* like
>> the part that was hard was not hitting 60.00, but *staying in sync =
with
>> others*...
>>=20
>> Cheers,
>> -- jra
>=20
> Generators all stay in sync. Generator owners have expensive devices
> that sync the phase before the generator is connected to the grid. =
Once
> a generator is connected to the gird, it will stay in sync - in fact
> that is why they have the expensive devices to make sure that they are
> in sync before they connect them, as if they are not, it will =
instantly
> jump to being in sync, which may destroy the generator.
>=20
As a matter of fact, it may destroy the generator, the housing, the =
building,
the damn, and more. An out-of-sync generator becomes a motor until it is
in sync. lt can be a graphic and dramatic event.
Owen
