Glad I'm not an electrician nowadays with all the regulations and lack of clarity. I would have thought a washing machine in a bathroom would have been well covered as I'm told its common practice in Europe. They think, apparently, we are unhygienic having them in our kitchens. Thanks for your responses, much appreciated. I was hoping someone would say yes that's ok and put my mind at rest.
- Thread starter Nezzzo
- Start date
Any idea what happened in Spain? The news was saying freak weather and pressures causing frequency harmonics and the grid just shut down
what i have noted.
15Mw of generation disconnected from the grid, 1.5 seconds later, they lost another 10Mw
this seems to have caused a cascade failure of generation disconnecting to protect itself.
it will take a few days until the technical details come out but it is remarkably similar to the event that hit eastern America a number of years ago.
15Mw of generation disconnected from the grid, 1.5 seconds later, they lost another 10Mw
this seems to have caused a cascade failure of generation disconnecting to protect itself.
it will take a few days until the technical details come out but it is remarkably similar to the event that hit eastern America a number of years ago.
The same sort of thing that happened at Heathrow? Too many “safety” systems kicking in and the whole thing drops out.
How stable is the UK grid do you all think? Could we suffer the same widespread blackouts across the country?
How stable is the UK grid do you all think? Could we suffer the same widespread blackouts across the country?
uk grid is surprisingly robust,
it is, in theory able to cope with multiple simultaneous faults.
however the thing with any grid that has multiple sources of energy and varying loads is that it all has to remain perfectly balanced.
if the frequency drops by more than1 Hz then protection devices may start tripping, when one goes, it can cause a cascade and it all falls like a domino run.
Large traditional generators, as you have in power stations are huge rotating masses that will resist changing speed because of their inertia. this means that they can cope with huge overloads for a short period of time.
a lot of the green machines like solar and small scale wind turbines use dc generators and inverters.
they are not able to deal with large overloads so the grid frequency will slow down. when it hits a threshold then they will disconnect from the grid. and that can start a chain reaction also known as a cascade failure.
it is, in theory able to cope with multiple simultaneous faults.
however the thing with any grid that has multiple sources of energy and varying loads is that it all has to remain perfectly balanced.
if the frequency drops by more than1 Hz then protection devices may start tripping, when one goes, it can cause a cascade and it all falls like a domino run.
Large traditional generators, as you have in power stations are huge rotating masses that will resist changing speed because of their inertia. this means that they can cope with huge overloads for a short period of time.
a lot of the green machines like solar and small scale wind turbines use dc generators and inverters.
they are not able to deal with large overloads so the grid frequency will slow down. when it hits a threshold then they will disconnect from the grid. and that can start a chain reaction also known as a cascade failure.
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