Sometimes the effect of mains frequency comes up in discussion and some people claim it even goes up and down by 10Hz or so! Here is an online meter telling you the frequency of the UK electricity grid right NOW. http://www.dynamicdemand.co.uk/grid.htm
I don't live in the UK and I'm no expert, but just going by the face of the meter at the link given, a 10Hz variation would be a total disaster.
An externally hosted image should be here but it was not working when we last tested it.
I'm pretty sure my mains freq is 10 Hz higher!
I design instrumentation for worldwide sales, the "universal" linear supply power transformers are designed to "work" with the varying line freq and V of differing countries
but since iron and copper aren't free, the magnetizing current at high line V, low frequency (you 50 Hz types) sometimes cause fuse selection problems with low power equipment, I can't convince the transformer manufacturer that a 10x change in excitation current is a little steep for a 20% increase in Bmax
I design instrumentation for worldwide sales, the "universal" linear supply power transformers are designed to "work" with the varying line freq and V of differing countries
but since iron and copper aren't free, the magnetizing current at high line V, low frequency (you 50 Hz types) sometimes cause fuse selection problems with low power equipment, I can't convince the transformer manufacturer that a 10x change in excitation current is a little steep for a 20% increase in Bmax
And for those on the European continent, here is the real-time mains frequency they deal with:
http://www.ucte.org/
Cheers
http://www.ucte.org/
Cheers
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