snip>> The reason why Distributors keep the voltage near the upper range is not to reduce current, but to ensure that the networks remain compliant (with the Energy Supply Quality Control Regulations for voltage tolerance) during periods of maximum load and therefore maximum voltage drop. However, when setting the voltage, care is taken to make sure that under no load conditions the voltage will not exceed the upper voltage limit (253V at LV).
>> It is also worth noting that ( to comply with ESQCR 2002 as above) they also have to take into account the voltage drop along the distribution path. ie if you live next to the sub-station (e.g a 11kV to "230"V transformer) then your supply voltage will be right at the top end of the permitted range. As the distance increases the actual voltage supplied will fall to near the bottom of the permitted range. Andy Best Regards, Andrew Wood MInstP Engineer - Special Products LAND Instruments International Stubley Lane, Dronfield, Derbyshire S18 1DJ, England This e-mail and its contents may be confidential, privileged and protected by law. Access is only authorised by the intended recipient. The contents of this e-mail may not be disclosed to, or used by, anyone other than the intended recipient, or stored or copied in any medium. If you are not the intended recipient, please advise the sender immediately. Land Instruments International is registered in London (Reg. No. 1659383) Registered office: Land Instruments International Limited, 2 New Star Road, PO Box 36, Leicester, Leicestershire, LE4 9JQ - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@ptcnh.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org> David Heald <dhe...@gmail.com>
