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On 15 May 2025 11:01:43 GMT
Marland <gemehabal@btinternet.co.uk> wibbled:
<Muttley@DastardlyHQ.org> wrote:
On Wed, 14 May 2025 21:57:41 +0100problem.
ColinR <rail@greystane.shetland.co.uk> wibbled:
On 14/05/2025 14:10, Tweed wrote:
Wind has managed 40% this month. It may well be that wind is currently >>>>> artificially constrained so we donrCOt have a repeat of the Spanish
Both wind and solar tend to be followers of grid frequency, ie their >>>>> electronics look at the frequency and match it. Conventional plant sustains
the frequency by virtue of the inertia of the generators. If you donrCOt >> keep
enough inertial generation the system trips out in the event of a fault and
a sudden dip of frequency. The renewables notice the dip, see it is out of
spec and turn off.
Another way to overcome this is to convert the AC from the turbines to >>>> DC when frequency does not pose a problem. This is done with the new
No reason the turbines couldn't produce DC directly,
Has technology moved on enough to allow brushless Dynamos for that sort of >> application?
https://www.amazon.co.uk/Permanent-Brushless-Generator-48V60V800W1000W1100W1200W-Motor-1000w/dp/B0CNZ6CGQ8
On 15/07/2025 18:55, Muttley@DastardlyHQ.org wrote:
On 15 May 2025 11:01:43 GMTW-Motor-1000w/dp/B0CNZ6CGQ8
Marland <gemehabal@btinternet.co.uk> wibbled:
<Muttley@DastardlyHQ.org> wrote:
On Wed, 14 May 2025 21:57:41 +0100problem.
ColinR <rail@greystane.shetland.co.uk> wibbled:
On 14/05/2025 14:10, Tweed wrote:
Wind has managed 40% this month. It may well be that wind is currently >>>>>> artificially constrained so we donrCOt have a repeat of the Spanish
Both wind and solar tend to be followers of grid frequency, ie their >>>>>> electronics look at the frequency and match it. Conventional plant >sustains
the frequency by virtue of the inertia of the generators. If you donrCOt >>> keep
enough inertial generation the system trips out in the event of a fault >and
a sudden dip of frequency. The renewables notice the dip, see it is out >of
spec and turn off.
Another way to overcome this is to convert the AC from the turbines to >>>>> DC when frequency does not pose a problem. This is done with the new
No reason the turbines couldn't produce DC directly,
Has technology moved on enough to allow brushless Dynamos for that sort of >>> application?
https://www.amazon.co.uk/Permanent-Brushless-Generator-48V60V800W1000W1100W1200
Mind you, that's a pretty special item. I quote from the above link:
Colour: 1000w
Engine type: 4 Stroke
Ignition system type: Magneto
Frequency: 50 Hz
On Wed, 16 Jul 2025 08:51:11 +0100
Peter Able <stuck@home.com> wibbled:
On 15/07/2025 18:55, Muttley@DastardlyHQ.org wrote:
On 15 May 2025 11:01:43 GMTsustains
Marland <gemehabal@btinternet.co.uk> wibbled:
<Muttley@DastardlyHQ.org> wrote:
On Wed, 14 May 2025 21:57:41 +0100
ColinR <rail@greystane.shetland.co.uk> wibbled:
On 14/05/2025 14:10, Tweed wrote:
Wind has managed 40% this month. It may well be that wind is currently >>>>>>> artificially constrained so we donrCOt have a repeat of the Spanish >>>> problem.
Both wind and solar tend to be followers of grid frequency, ie their >>>>>>> electronics look at the frequency and match it. Conventional plant
https://www.amazon.co.uk/Permanent-Brushless-Generator-48V60V800W1000W1100W1200
keepthe frequency by virtue of the inertia of the generators. If you donrCOt
enough inertial generation the system trips out in the event of a fault >> and
No reason the turbines couldn't produce DC directly,a sudden dip of frequency. The renewables notice the dip, see it is out >> of
spec and turn off.
Another way to overcome this is to convert the AC from the turbines to >>>>>> DC when frequency does not pose a problem. This is done with the new >>>>>
Has technology moved on enough to allow brushless Dynamos for that sort of
application?
W-Motor-1000w/dp/B0CNZ6CGQ8
Mind you, that's a pretty special item. I quote from the above link:
Colour: 1000w
Engine type: 4 Stroke
Ignition system type: Magneto
Frequency: 50 Hz
Looks like someone fucked up the data. Probably wouldn't buy from them if they can't even get the basics correct.
Has technology moved on enough to allow brushless Dynamos for that sort of >>application?
https://www.amazon.co.uk/Permanent-Brushless-Generator-48V60V800W1000W1100W1200W
-Motor-1000w/dp/B0CNZ6CGQ8
In message <10564ls$79i3$1@dont-email.me>, at 17:55:08 on Tue, 15 Jul
2025, Muttley@DastardlyHQ.org remarked:
Has technology moved on enough to allow brushless Dynamos for that sort of >>> application?
https://www.amazon.co.uk/Permanent-Brushless-Generator-48V60V800W1000W1100W1200W
-Motor-1000w/dp/B0CNZ6CGQ8
Oh look! A split URL :(
Roland Perry <roland@perry.uk> wrote:
In message <10564ls$79i3$1@dont-email.me>, at 17:55:08 on Tue, 15 Jul
2025, Muttley@DastardlyHQ.org remarked:
Has technology moved on enough to allow brushless Dynamos for that sort of
application?
https://www.amazon.co.uk/Permanent-Brushless-Generator-48V60V800W1000W >>>1100W1200W
-Motor-1000w/dp/B0CNZ6CGQ8
Oh look! A split URL :(
Actually itrCOs not as presented by Amazon.
They encode the space before -Motor correctly with %20. The %20 is
perhaps a casualty of copy/paste.
<Muttley@DastardlyHQ.org> wrote:
On Mon, 12 May 2025 15:46:30 GMTPut your distribution assets in the hands of monopoly private operators together with an ineffective regulator and you get this. Just like the
Recliner <recliner.usenet@gmail.com> wibbled:
https://www.telegraph.co.uk/news/2025/05/12/london-underground-power-cut-crippl
es-tube-delays/
4:27pm
More London Tube and rail lines affected by power outages
The effects of the power outage appear to be spreading across the Tube
network.
First heathrow now this. The power supply resilience in this country seems to
be somewhere between dreadful and non existent.
water industry. The Heathrow transformer that caught fire was 57 years old.
Tweed <usenet.tweed@gmail.com> wrote:
<Muttley@DastardlyHQ.org> wrote:
On Mon, 12 May 2025 15:46:30 GMTPut your distribution assets in the hands of monopoly private operators
Recliner <recliner.usenet@gmail.com> wibbled:
https://www.telegraph.co.uk/news/2025/05/12/london-underground-power-cut-crippl
es-tube-delays/
4:27pm
More London Tube and rail lines affected by power outages
The effects of the power outage appear to be spreading across the Tube >>>> network.
First heathrow now this. The power supply resilience in this country seems to
be somewhere between dreadful and non existent.
together with an ineffective regulator and you get this. Just like the
water industry. The Heathrow transformer that caught fire was 57 years old.
Follow-up on the cost of the Heathrow shutdown:
Fire near Heathrow costs airport tens of millions of pounds
https://www.thetimes.com/article/3a5337e6-e4ea-45a2-bdd0-cdc1c2f79b74?shareToken=662168dea7ab6cb5c2be40be736a078b
ThatrCOs just the cost to the airport. I donrCOt suppose it includes the cost to the airlines, passengers and freight operators.
On 24/07/2025 09:11, Recliner wrote:
Tweed <usenet.tweed@gmail.com> wrote:
<Muttley@DastardlyHQ.org> wrote:Follow-up on the cost of the Heathrow shutdown:
On Mon, 12 May 2025 15:46:30 GMTPut your distribution assets in the hands of monopoly private operators
Recliner <recliner.usenet@gmail.com> wibbled:
https://www.telegraph.co.uk/news/2025/05/12/london-underground-power-cut-crippl
es-tube-delays/
4:27pm
More London Tube and rail lines affected by power outages
The effects of the power outage appear to be spreading across the Tube >>>>> network.
First heathrow now this. The power supply resilience in this country seems to
be somewhere between dreadful and non existent.
together with an ineffective regulator and you get this. Just like the
water industry. The Heathrow transformer that caught fire was 57 years old. >>
Fire near Heathrow costs airport tens of millions of pounds
https://www.thetimes.com/article/3a5337e6-e4ea-45a2-bdd0-cdc1c2f79b74?shareToken=662168dea7ab6cb5c2be40be736a078b
ThatrCOs just the cost to the airport. I donrCOt suppose it includes the cost
to the airlines, passengers and freight operators.
It's the airport's fault. They had three different supplies available
but chose to take the risk of not installing equipment fully utilise them.