WikiWirral values you and your opinion.
Forum Statistics
Forums65
Topics76,423
Posts1,033,702
Members14,741
Most Online21,357
Oct 2nd, 2024
Who's Online Now
9 members (2 invisible), 16,272 guests, and 484 robots.
Key: Admin, Global Mod, Mod
Top Posters
sunnyside 45,164
MattLFC 22,315
Mark 21,269
granny 17,803
_Ste_ 16,347
Newest Members
Mark_Brymner, OliveH2022, PAULENGLAND, JaneBC, MikeCOF
14,741 Registered Users
New General Forums
Last person to post wins...
by GaryB - 9th Oct 2007 8:15pm
New Wirral History
Eleanor Road Bidston (Bishops House)
by RobThomas - 18th Nov 2024 7:45am
Croxteth and Spring Streets
by Croxtethroberts - 16th Nov 2024 9:54am
Slavery Wirral
by granny - 14th Jul 2023 1:15pm
735 Grand Hotel / Royal Marine, New Brighton
by Norton - 8th Feb 2014 6:53pm
A Postcard from New Brighton
by Norton - 18th Apr 2012 3:21pm
Top Posters(30 Days)
bert1 33
Topic Replies
Silver bars
by diggingdeeper - 29th Nov 2024 9:42pm
The Zieglers in Oxton
by JemimaOxton - 24th Nov 2024 7:34pm
Barnston Dale
by Excoriator - 22nd Nov 2024 6:25pm
Eleanor Road Bidston (Bishops House)
by bert1 - 20th Nov 2024 6:32pm
Another SIgn of the Times
by diggingdeeper - 19th Nov 2024 1:35pm
Wallasey woman arrested following knifing incident
by diggingdeeper - 18th Nov 2024 12:53am
Croxteth and Spring Streets
by bri445 - 17th Nov 2024 2:42pm
Mersey Barrage
by diggingdeeper - 14th Nov 2024 2:37am
Smoking and Cancer
by diggingdeeper - 14th Nov 2024 2:32am
December
M T W T F S S
1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31
Top Likes Received (30 Days)
None yet
Top Likes Received
bert1 14
casper 4
Mark 4
Previous Thread
Next Thread
Print Thread
Page 2 of 2 1 2
Excoriator #1085405 24th Oct 2024 10:43am
Joined: Jul 2008
Posts: 14,436
Likes: 25
Wiki Master
Offline
Wiki Master
Joined: Jul 2008
Posts: 14,436
Likes: 25
Originally Posted by Excoriator
Its not my field, having worked with picowatts rather than Terawatts, but I believe grid level converters - at least the big ones used on HVDC links - do not run at high speed. They are quite crude and some even simply chop DC at Mains frequency to produce a square wave and rely on subsequent L-C filtering to get a sinusoid. More sophisticated ones manage a sort of multilevel boxcar waveform to approximate a sinewave more closely. They too operate at low speed, a few multiples of Mains frequency.

Having now read up on MMC high voltage converters, its a concept I had totally discounted for the grid because I didn't think capacitors could exist for that function at that combination of frequencies, voltage, power and charge, they must be physically massive which in itself must create other complications.

Likewise on power, one of my specialisms was down at the < -130dBm signal levels - but not at audio frequencies. Those days have well gone as has the grey matter.


We don't do charity in Germany, we pay taxes. Charity is a failure of governments' responsibilities - Henning Wehn

https://ddue.uk
Google Ads
Excoriator #1085435 5th Nov 2024 1:20pm
Joined: Dec 2010
Posts: 2,291
Likes: 3
Forum Master
Offline
Forum Master
Joined: Dec 2010
Posts: 2,291
Likes: 3
Funny how it was too expensive in 2011.

And, going on HS2 and every other construction project in the 21st century, I'm pretty sure costs haven't come down.

Construction costs sink £3.5bn Mersey barrage
https://www.constructionenquirer.com/2011/06/23/high-construction-costs-sink-3-5bn-mersey-barrage/

Excoriator #1085436 5th Nov 2024 9:09pm
Joined: Jul 2008
Posts: 14,436
Likes: 25
Wiki Master
Offline
Wiki Master
Joined: Jul 2008
Posts: 14,436
Likes: 25
The internet at its best, Wirral will be entirely under water by 2050, we are notorious for having four tides a day and we live in the "town" of Merseyside. That is why the are building the barrage.



We don't do charity in Germany, we pay taxes. Charity is a failure of governments' responsibilities - Henning Wehn

https://ddue.uk
Excoriator #1085450 13th Nov 2024 2:30pm
Joined: Jan 2010
Posts: 1,888
Likes: 4
Forum Addict
OP Offline
Forum Addict
Joined: Jan 2010
Posts: 1,888
Likes: 4
Not to mention the River 'Mercy'

Once again I am amazed at the quality of American education.

Excoriator #1085452 14th Nov 2024 2:37am
Joined: Jul 2008
Posts: 14,436
Likes: 25
Wiki Master
Offline
Wiki Master
Joined: Jul 2008
Posts: 14,436
Likes: 25
Originally Posted by Excoriator
Not to mention the River 'Mercy'

Once again I am amazed at the quality of American education.


The internet is becoming more and more financially driven, very little effort is put into content, much more effort is put into expanding articles to obtain more advertising time hence revenue. In this case I suspect some of the content is AI derived because you can see how stated "facts" are linked to reality but miss by a sidestep.


We don't do charity in Germany, we pay taxes. Charity is a failure of governments' responsibilities - Henning Wehn

https://ddue.uk
Page 2 of 2 1 2

Moderated by  Mod 

Link Copied to Clipboard
Random Wirral Images

Click to View Topic.
Newest Topics
Silver bars
by Peter0787 - 28th Nov 2024 8:56pm
Barnston Dale
by CupcakeKaren - 20th Nov 2024 12:35pm
Another SIgn of the Times
by diggingdeeper - 19th Nov 2024 1:35pm
The Zieglers in Oxton
by JemimaOxton - 18th Nov 2024 3:07pm
Eleanor Road Bidston (Bishops House)
by RobThomas - 18th Nov 2024 7:45am
For Sale & Free
Member Spotlight
KevinFinity
KevinFinity
Wirral
Posts: 2,357
Joined: April 2009
Today's Birthdays
There are no members with birthdays on this day.
New Wirral Info
Silver bars
by Peter0787 - 28th Nov 2024 8:56pm
Barnston Dale
by CupcakeKaren - 20th Nov 2024 12:35pm
The Zieglers in Oxton
by JemimaOxton - 18th Nov 2024 3:07pm
Mersey Barrage
by Excoriator - 20th Sep 2024 9:43am
News : New Topics
Another SIgn of the Times
by diggingdeeper - 19th Nov 2024 1:35pm
Wallasey woman arrested following knifing incident
by _jase_ - 8th Sep 2010 3:02pm
New Enthusiast Forums
Smoking and Cancer
by diggingdeeper - 5th Nov 2024 3:12am
Popular Topics(Views)
5,355,389 WIKI WALK CHAT
4,240,923 Spotted!
Powered by UBB.threads™ PHP Forum Software 7.7.5