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Selective unexpected mains power outages ... computers are first to 'conk out'.


Aitchbee
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At home today about 3:30pm whilst watchin' c4 racing, my light in the kitchen flickered for a tenth of a second and also my TV was off for about ten seconds, then came back on; but my 2 computers had switched themselves off. I switched my computers back on and luckily no problems. The same thing happened again at 3:50pm. Again I switched the computers back on and also the TV this time.

Later, at about 5:30pm, I went over to my local bookies and was [half] surprised to see that nearly all of their screens were 'off-air', they said it happened at about 3:30pm.

Finally [I hope you are all sticking with me here], when I looked up at the big wind-turbine high up on the hill ... it was steadfastly not moving but it was [and still is] very windy. [I reckon the computer that controls the tubine was also 'knocked out'.

Question: Are mains connected computers always the first 'to go', when there is an 'outage' ?

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Aitchbee

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Although it may have been a coincidence for the turbine to be stationary, I was a-thinkin' that the turbine's mast's rotational movement was controlled by a mains-supplied computer, as the big turbine blades always appear at different angles on the faraway hilltop horizon depending on the wind direction and strength.

BTW - the position of the blades have not moved at all since yesterday, I have just had a look.

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fourm member

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Aitchbee

I understand.

It would seem very bizarre for a power generation unit to rely on external power to work but, since this is wind power we're talking about, logic does not apply so you might be right.

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wee eddie

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Years ago I bought an Anti-Surge Bar, which worked well, until I unthinkingly plugged a Fan Heater in and it overloaded.

When I started to look around for a replacement, my Specification had widened. A switch on every outlet, etc. Because of this the cost had risen and I had just read an APC Advert for their Basic UPS. It was about treble the price of what I was going to buy but it set me thinking.

Eventually I did not buy the basic model but one with a potential for my Set-up to continue working for about 18 minutes.

It's only had to do its bit once in the last 2 years, but I'm happy with the sense of security it brings.

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oresome

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I used to install communications equipment for the power generators and the power distributors.

Neither relied on their own power to keep things going!

Batteries, diesel generators and off site supplies were the order of the day, often with duplicate cable runs taking different routes to their destination.

The trouble then with micro-processor equipment was, if the changeover from one supply to another wasn't extremely smooth, it could crash and be out of service anyway.

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namtas

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In this case there may be no connection between the turbine not working and your power cut, however all wind Turbine require an incoming power supply to operate.

It is required activate the primary control circuits and other control and monitoring systems etc, no incoming power = no output power, simple

Incidentally it is a fact often overlooked when power output is quoted.

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Aitchbee

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... it must have been too prohibitive to call out a suitably qualified turbine technician to fix the damn thing [monstrosity] ... as it's the weekend ;o]

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fourm member

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'Incidentally it is a fact often overlooked when power output is quoted.'

Why does that not surprise me? It is just another example of the con that is wind power.

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onthelimit1

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Had a short break a couple of weeks ago. All 5 computers tripped, but restarted OK. Not so lucky with the CH programmer - refused to turn the CH on even though the clock time remained correct. Had to fork out 50 quid to Screwfix to buy another.

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fourm member

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onthelimit1

We had that a few years ago. We had a spell of short power cuts during upgrade work on the network and the controller fried after a couple of days.

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