[Tagging] What's a power=station?
rwtnospam-newsgp at yahoo.com
Mon Jan 18 04:30:49 GMT 2010
Steve Bennett wrote:
>According to the wiki "map features" table, a "power=station" is "A
>tag for electricity stations. Wires from power lines come in or go out
>1) Does everyone use it this way? Without having looked at the table,
>I would have guessed that a "power=station" was a power plant (ie, a
>coal, or gas or whatever plant that generates power), whereas that
>appears to be a "power=generator".
>2) What is a "power station" exactly? I think I know the type of thing
>it's referring to (although I have, perhaps mistakenly, called these
>"sub stations" in the past). What does it do? Does it simply convert
>high voltage down to lower, consumer-level voltage?
>Hmm, then again, http://en.wikipedia.org/wiki/Electrical_substation
>seems to use the term the way I understood it: ie, a roughly
>house-sized arrangement of electrical equipment, rather than
>cabinet-sized, as shown in the wiki page.
>I'll then update the wiki, adding definitions for the individual pages.
Your understanding is certainly the common use of those two terms in the
US. A power station, also known as a power plant, is an electrical
generation site. It includes a device for energy conversion from heat (a
steam generation power station), potential water energy (a hydroelectric
power station), wind energy (a wind farm), light (a solar power station),
etc. into electrical energy. A substation is a location which is used for
voltage transformation, conditioning, distribution, and/or switching of
electrical power. Substations can be of many sizes, covering several acres
to a few hundred square feet or less.
Without seeing the specifications for it, I would call the device in the
table a distribution transformer.
I would say that either the UK/European terminology is significantly
different from the US or else the person who prepared the examples for the
table had an incomplete understanding of electrical power systems.
For terminology commonality, I don't have a problem with using
power=generator for a power plant, but I don't think I can bring myself to
use power=station for a substation. I think power=substation would fit
much better in the US, and it doesn't appear to conflict with any
currently defined tags.
My preference would be to use power=station for the total power generating
facility, including generation and distribution functions, and
power=generator for the device or possibly the building(s) within the
facility containing the actual electrical generators. However, I guess
that might be misusing the power=station tag considering its current
definition and use.
Randy (PE, Elec.)
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