1. Home
  2. Electronics Design
  3. Mains power voltage drop to reduce usage? (2023 Update)
  4. Page 3

Mains power voltage drop to reduce usage? (2023 Update)

And a puny domestic inverter will die horribly if it stays on too long.

The semiconductor electronics are certainly capable of that but the transformer will saturate and then get hot ultimately catching fire if the frequency drops too low. Some US kit built for 60Hz only would get awfully hot on UK 50Hz mains. A cheap and nasty US brand of shavers sold mostly at Xmas relied on a 60Hz mechanical resonance for good measure.

Japanese kit can pretty much always be relied upon to work on either 50 or 60Hz since roughly half of their country is on each frequency.

Reply to
Martin Brown
Loading thread data ...

There us a good map of the various synchronous networks in Europe in

formatting link
It should be noted that some areas in North Africa is connected to UCTE. Denmark is interesting, Jutland is in UCTE while the islands are in the Nordic net.

The CIS (Russia etc) has an own synchronous network. The situation in Ukraine is currently unclear.

Reply to
upsidedown

Then it must be possible to let it go way below 50Hz. The regulation's a bit daft if some can do it.

Reply to
Commander Kinsey

A German device couldn't handle a **2%** change?

Reply to
Commander Kinsey

I thought there was a problem with capacitance sending AC a long distance, hence DC to the UK? Yet they're managing AC throughout most of Europe?

Reply to
Commander Kinsey

That's just dust from the bombs, you'll get a good view tomorrow.

Reply to
Commander Kinsey

What does USA do with it's 60Hz shit? Or does it do as it does with the rest of politics, ignore everyone non-American?

Reply to
Commander Kinsey

Support the largest and most successful economy on the planet.

formatting link

Reply to
Scott Lurndal

They're not having to send it undersea though.

Reply to
SteveW

Yes.

That is correct. What he said, was not.

Reply to
Carlos E.R.

There is a problem with capacitance and inductance sending high voltage underground or undersea for significant distances, which DC doesn't have.

Reply to
Carlos E.R.

Yep.

Well, I wouldn't say that as proof "it can be done". There were consequences :-D

Reply to
Carlos E.R.

formatting link

Reply to
Scott Lurndal

...

Oh? I had no idea of that. Different islands, perhaps?

Reply to
Carlos E.R.

No, because existing equipment can not handle it. The regulation simply takes into account that equipment, those design constraints, and tells you not to drop the frequency.

Sure, go to your own island and put your own rules, from scratch, then talk.

Reply to
Carlos E.R.

Except of course that that is DC link - because it is underwater.

Reply to
SteveW

This one runs about almost 1000 km and transmits 2000 MW < if I'm reading this correctly >

formatting link
Lots of very specialized engineering and other considerations that distinguish it from long AC EHV transmission. John T.

Reply to
hubops

... to which one should add, the problems of corona (which requires fat cables in air) and earth conduction (a leakage resistance that inductively couples to AC) which limit all installations, even airborne lines that don't take the low paths.

Reply to
whit3rd

Yes, true. But in this case, the losses using AC per kilometre are much lower, so the length at which DC becomes economical above ground is much greater than under ground or under water.

It is simply a question of calculating all the costs and deciding which one turns cheaper.

Reply to
Carlos E.R.

The network issue in Ukraine has been messy for years.

According to

formatting link
was disconnected from the Russian/CIS net hours before the Russian invasion.

In March, there is a limited connection to Central Europe.

Reply to
upsidedown

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.