<236f133b43f4d211a4b00090273c79dc060b6...@us-rv-exch-2.rsvl.unisys.com>, Richardson, William G <william.richard...@unisys.com> wrote: >The important thing to note is that a good amount of the utility load is not >constant power. It is light bulbs, toasters, coffeemakers, hairdryers and >electric heaters and so on. So lowering the voltage 10 % is the first step - >the so-called brown-outs. Power is a square function, so the new power is >then 90% times 90% or only 81% of the original load.
Not with light bulbs, actually. At a lower voltage the filament temperature is lower, so the resistance is lower. Over a certain voltage range, a lamp draws a nearly constant current, so for a 10% voltage drop, the power drops by around 10%. not 20%. -- Regards, John Woodgate, OOO - Own Opinions Only. Phone +44 (0)1268 747839 Fax +44 (0)1268 777124. http://www.jmwa.demon.co.uk Why not call a vertically- applied manulo-pedally-operated quasi-planar chernozem-penetrating and excavating implement a SPADE? ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: pstc_ad...@garretson.org Dave Heald davehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on "Virtual Conference Hall,"
