Very simply the higher voltage in the UK and Europe is a much more efficient means of distribution requiring smaller wire sizes and lower amperages but somewhat more dangerous as the higher voltage overcomes resistance easier.
Michael Kratky Electrical Fire Underwriter Inspector Retired Master Electrician From: legacy-ornamental-mills@googlegroups.com [mailto:legacy-ornamental-mills@googlegroups.com] On Behalf Of Bawdsey64 Sent: Wednesday, April 04, 2018 1:06 PM To: MWF; Mike Pung Subject: Re: REVO POWER Hi Mac Electricity in the Royal Empire is sent around the country on big pylons at high voltage 10KV and at beefy current levels. When it comes out of the wire at house level it is has been transformed down to a nominal 240 volts at 50 cycles. However into factories it is normally 3 phase at 415 volts. Now if that 3 phase supply is going into domestic properties, such as a block of apartments then the electrician can take three 240 volt supplies from the 3 phase supply using one phase plus the neutral from the 3 phase supply. Once in the property the electrician runs a number of ring main circuits from the power cabinet PLUS all our UK domestic power plugs are FUSED unlike I believe in the USA . It is a long time, about 57 years, since I did electrical theory when I was in the Royal Air Force so rather than dig out my old note books from way back then, and yes I still have them, I referred to https://en.wikipedia.org/wiki/Three-phase_electric_power where it is explained in great detail. When we joined the European Union we were meant to change our 240 volt supply to 230 volts but being British and knowing we would leave that club one day we never changed. Cheers Roger From: MWF Received: 04/04/2018 16:41:44 +01:00 To: legacy-ornamental-mills@googlegroups.com I guess I don't understand enough about electricity in the Royal Empire. Here in the Colonies, we use 120/220v and it works well. Why do you need so much voltage to power the spindle? (Especially given that youhad to power it via an inverter.) Granted, that motor does not look big at all. Here in the USA I expect a 220v motor would be at least twice the size of yours. Cheers. Mac -----Original Message----- From: Richard Ellis Sent: Apr 4, 2018 11:24 AM To: Legacy Ornamental Mills Subject: REVO POWER A pic of the drive to the spindle vari-speed via an inverter 240 volt to 414 volt -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. To unsubscribe from this group and stop receiving emails from it, send an email to legacy-ornamental-mills+unsubscr...@googlegroups.com. To post to this group, send email to legacy-ornamental-mills@googlegroups.com. Visit this group at https://groups.google.com/group/legacy-ornamental-mills. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. To unsubscribe from this group and stop receiving emails from it, send an email to legacy-ornamental-mills+unsubscr...@googlegroups.com. To post to this group, send email to legacy-ornamental-mills@googlegroups.com. Visit this group at https://groups.google.com/group/legacy-ornamental-mills. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. To unsubscribe from this group and stop receiving emails from it, send an email to legacy-ornamental-mills+unsubscr...@googlegroups.com. To post to this group, send email to legacy-ornamental-mills@googlegroups.com. Visit this group at https://groups.google.com/group/legacy-ornamental-mills. For more options, visit https://groups.google.com/d/optout.
