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Post by mattyd on Aug 10, 2019 16:47:26 GMT
Pretty much all over the place, apparently unprecedented 2 generators went down at the same time, which altered the frequency and blew sub stations everywhere.
Maybe Elystokie could give us his take...
They were quick to rebuke rumours of a cyber attack.
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Post by The Drunken Communist on Aug 10, 2019 17:23:49 GMT
Clearly Brexit/Boris/TheDon are to blame.
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Post by elystokie on Aug 10, 2019 17:31:33 GMT
Pretty much all over the place, apparently unprecedented 2 generators went down at the same time, which altered the frequency and blew sub stations everywhere. Maybe Elystokie could give us his take... They were quick to rebuke rumours of a cyber attack. When they say generators I presume they mean Power Stations? I haven't really looked into it but, like most equipment in the power generation game, sub-stations are loaded with safety features and it's quite plausible 2 power stations (presumably gas powered) going down at once could easily trigger them. Edit - one gas powered and one disconnected wind farm apparently, affects us a lot more now than it did in the 70s it seems, I always said the power station operators could have the most powerful union in the country if they chose to  |
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Post by Northy on Aug 10, 2019 17:41:30 GMT
Pretty much all over the place, apparently unprecedented 2 generators went down at the same time, which altered the frequency and blew sub stations everywhere. Maybe Elystokie could give us his take... They were quick to rebuke rumours of a cyber attack. When they say generators I presume they mean Power Stations? I haven't really looked into it but, like most equipment in the power generation game, sub-stations are loaded with safety features and it's quite plausible 2 power stations (presumably gas powered) going down at once could easily trigger them. It was a gas powered plant near Cambridge and a wind farm sub station near Hull that went down at the same time, which dropped the frequency causing equipment on the grid to safeguard. I was in our data centre at Stevenage and our DRUPS picked it up and started. There were some gas problems in the area I think, as Ask Italian in Stevenage couldn't do pasta and some other stuff because of no gas, other sites reporting no gas issues. |
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Post by felonious on Aug 10, 2019 18:05:30 GMT
When they say generators I presume they mean Power Stations? I haven't really looked into it but, like most equipment in the power generation game, sub-stations are loaded with safety features and it's quite plausible 2 power stations (presumably gas powered) going down at once could easily trigger them. It was a gas powered plant near Cambridge and a wind farm sub station near Hull that went down at the same time, which dropped the frequency causing equipment on the grid to safeguard. I was in our data centre at Stevenage and our DRUPS picked it up and started. There were some gas problems in the area I think, as Ask Italian in Stevenage couldn't do pasta and some other stuff because of no gas, other sites reporting no gas issues. I take it you weren't deprived of your yards of ale? |
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Post by elystokie on Aug 10, 2019 18:12:27 GMT
When they say generators I presume they mean Power Stations? I haven't really looked into it but, like most equipment in the power generation game, sub-stations are loaded with safety features and it's quite plausible 2 power stations (presumably gas powered) going down at once could easily trigger them. It was a gas powered plant near Cambridge and a wind farm sub station near Hull that went down at the same time, which dropped the frequency causing equipment on the grid to safeguard. I was in our data centre at Stevenage and our DRUPS picked it up and started. There were some gas problems in the area I think, as Ask Italian in Stevenage couldn't do pasta and some other stuff because of no gas, other sites reporting no gas issues. Id have said possibly a fault at their GOC, Gas Offtake Compound, where they take the gas from the national grid, not usually manned, but with the restaurant problem evidently not, no idea. |
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Post by chuffedstokie on Aug 11, 2019 8:36:41 GMT
When they say generators I presume they mean Power Stations? I haven't really looked into it but, like most equipment in the power generation game, sub-stations are loaded with safety features and it's quite plausible 2 power stations (presumably gas powered) going down at once could easily trigger them. It was a gas powered plant near Cambridge and a wind farm sub station near Hull that went down at the same time, which dropped the frequency causing equipment on the grid to safeguard. I was in our data centre at Stevenage and our DRUPS picked it up and started. There were some gas problems in the area I think, as Ask Italian in Stevenage couldn't do pasta and some other stuff because of no gas, other sites reporting no gas issues. A friend who works in the signalling department at Kings Cross said that there'd been a power spike and the East Coast Mainline amongst other parts of the network simultaneously shut down. |
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Post by Northy on Aug 11, 2019 18:44:26 GMT
It was a gas powered plant near Cambridge and a wind farm sub station near Hull that went down at the same time, which dropped the frequency causing equipment on the grid to safeguard. I was in our data centre at Stevenage and our DRUPS picked it up and started. There were some gas problems in the area I think, as Ask Italian in Stevenage couldn't do pasta and some other stuff because of no gas, other sites reporting no gas issues. A friend who works in the signalling department at Kings Cross said that there'd been a power spike and the East Coast Mainline amongst other parts of the network simultaneously shut down. Wasn't a spike, it was a slight drop in frequency (hertz) I had 8MW of generators cut in on 1site, and the diagnosis on the panel was a drop in frequency |
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Post by elystokie on Aug 12, 2019 19:02:36 GMT
This is quite an interesting site for anyone that's erm interested  in this sort of thing. www.gridwatch.templar.co.uk/Frequency at 19:40 was 49.90Hz which is a bit low, as Northy says, they're usually aiming for 50Hz, maybe the evening spike in demand has lasted a bit longer than they expected but they'll gradually be shutting some of the gas turbine stations down now I'd imagine. The other big dials on that page are the national demand and where the supply us coming from, pretty self explanatory really, CCGT stands for Combined Cycle Gas Turbine, meaning that they run a gas turbine (or more than one) and use the exhaust heat to 'boil' water to power a steam turbine. CCGT's provide the flexibility in the system, wind will obviously do it's own thing, same with solar, Nuclear, Coal (more or less neglible nowadays) and Biomass take a lot longer to start up. We were starting up and shutting down more or less every day at the CCGT I was last on. Sorry, rambled on a bit there |
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Post by franklin66 on Aug 12, 2019 19:37:59 GMT
Nerds.....😉
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Post by Northy on Aug 12, 2019 20:22:44 GMT
This is quite an interesting site for anyone that's erm interested in this sort of thing. www.gridwatch.templar.co.uk/Frequency at 19:40 was 49.90Hz which is a bit low, as Northy says, they're usually aiming for 50Hz, maybe the evening spike in demand has lasted a bit longer than they expected but they'll gradually be shutting some of the gas turbine stations down now I'd imagine. The other big dials on that page are the national demand and where the supply us coming from, pretty self explanatory really, CCGT stands for Combined Cycle Gas Turbine, meaning that they run a gas turbine (or more than one) and use the exhaust heat to 'boil' water to power a steam turbine. CCGT's provide the flexibility in the system, wind will obviously do it's own thing, same with solar, Nuclear, Coal (more or less neglible nowadays) and Biomass take a lot longer to start up. We were starting up and shutting down more or less every day at the CCGT I was last on. Sorry, rambled on a bit there Use it often mate, I'm a member of the MEUC, major energy users council. The hz dropped to about 49.7 I believe. |
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Post by elystokie on Aug 12, 2019 22:03:31 GMT
This is quite an interesting site for anyone that's erm interested in this sort of thing. www.gridwatch.templar.co.uk/Frequency at 19:40 was 49.90Hz which is a bit low, as Northy says, they're usually aiming for 50Hz, maybe the evening spike in demand has lasted a bit longer than they expected but they'll gradually be shutting some of the gas turbine stations down now I'd imagine. The other big dials on that page are the national demand and where the supply us coming from, pretty self explanatory really, CCGT stands for Combined Cycle Gas Turbine, meaning that they run a gas turbine (or more than one) and use the exhaust heat to 'boil' water to power a steam turbine. CCGT's provide the flexibility in the system, wind will obviously do it's own thing, same with solar, Nuclear, Coal (more or less neglible nowadays) and Biomass take a lot longer to start up. We were starting up and shutting down more or less every day at the CCGT I was last on. Sorry, rambled on a bit there Use it often mate, I'm a member of the MEUC, major energy users council. The hz dropped to about 49.7 I believe. First time I've looked at it in nearly 2 years mate, it was a bit weird seeing it tbh |
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in this sort of thing.
