Mains power voltage drop to reduce usage?

Nov 06, 2022 Last reply: 2 years ago 602 Replies

mandag den 7. november 2022 kl. 20.49.34 UTC+1 skrev John Larkin:

Ackchyually ..

if they 180 degrees apart (240V between two hots) it is it is split phase and doesn't count as different phases

if they are 120 degrees apart (208V between two hots) they are two out of three phases

It would take great delight in inconveniencing them having to return if I'm out.

Just connect a wire between the 2 points and say it fell into place when the meter melted.

It does sound old. I have new air2air Mitsubishi in the UK, fairly recent Fujitsu General and older Daikin in Spain. None of these have any resistive heating element, but of course in Spain they are mostly for cooling.

The Mitsubishi are supposed to produce heat down to an outside temp of

-16C but I don't suppose it will produce much at that temp....

.. but I see that suppliers can supply auxiliary heaters for air2water heat pumps, but say generally not needed in the uk...

Dave

Mine seems to make a quieter lower grumbling noise when defrosting, no idea what it's doing. Sounds mechanical. The fans are all stopped, there's nothing else in there to make a noise, so I assume the compressor runs slowly or something?

I question whether a heatpump is worth it. They cost so much to buy, just to save some electricity when the temperature is favourable for it. Using mine for heating aswell as AC, I wore it out in under 2 years and had to repair it, so I just use it for AC now, since the valve to switch it over is jammed inside.

Then killfile me you silly woman.

And I can't be dumb for quoting a fact you can backup with google.

Only a heatpump can give you more out than you put in. Just think about it.

Not what I heard - refusing to buy from Russia and Russia refusing to sell it, etc.

Are you telling me that never happened?

[shakes head in disbelief]

An amp clamp is a wonderful device. Wrap it round a meter tail and observe the change as someone turns things on and off. I just did this to measure my parents' oil boiler electricity consumption to fit an appropriately sized backup battery.

Sounds like the thermostat is f***ed, will your landlord replace it?

It's 2 foot deep, 6 foot tall, 6 foot wide, has 100 CPU cores and 12 GPUs. Total RAM about 300GB.

An appropriate breaker or fuse should be present to protect all wiring and transformers. The worst one I saw was where I used to live, next door was a very old house with the cable going in through the eaves of the roof. It came loose and shorted in his attic. Enough to cause sparks to fly from the pole mounted transformer across the road for a considerable time, and lots of loud buzzing. Nothing tripped, his house burnt down. He didn't give a s*it, he got a lot off the insurance. I hope the insurance fined the f****it electricity supplier (and the f****it fire brigade who had no key to turn off the supply, and no equipment/skills to put out a live fire).

It's all in parallel. Three live cables (one per phase, each with neutral/earth armour plating) come out of the transformer and run all the way along the street under the pavement. They branch to each house. It would be difficult to add stuff like you suggest.

I sorted it myself with a UPS for anything delicate, which lowers the voltage accordingly.

How can the law permit you being charged 5 times too much?

S*it, my meter is digital. They changed it several years ago when I went to two-rate supply.

Not true. The average annual electricity bill is £2500. You can't spend that with a fridge.

Why two? Why not one?

I believe the farmers can create three phase, but that could also be expensive.

No, in the UK we have proper power. One voltage, no messing about with extra conductors.

We never bought it from Russia, anyway. Just a testimonial 5% or so.

The frequency I've seen drop by about 0.2Hz regularly, and sometimes about 0.5Hz. That would be a change in turntable speed of 1 in 250 to 1 in 100. I wonder if that would be noticeable by ear? I guess it would when it happens, but not if it was gradual.

They have to average the frequency at 50 for the sake of clocks (my mother has a very old wall clock using it, and I think the timers in meter boxes to switch to economy 7 use it?). But I don't know what the limits are for a short period.

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