[Tagging] Multiple transformers

[François Lacombe]

Hi Jherome,

This mail to give you some news about "transformer banks" tagging in OSM.

I've completed the proposal started last Febuary
https://wiki.openstreetmap.org/wiki/Proposed_features/Transformer_extension_proposal

There is a chapter dedicated to transformers sets, which sounds to be a
better name for what we use to call banks
https://wiki.openstreetmap.org/wiki/Proposed_features/Transformer_extension_proposal#Transformer_sets

Let me know if you have any remarks
As far as I know, this won't get in conflict with existing tagging. The
document only extend things and make them more precise regarding of how
transformers work.

All the best

François

*François Lacombe*

fl dot infosreseaux At gmail dot com
www.infos-reseaux.com
@InfosReseaux <http://www.twitter.com/InfosReseaux>

2017-04-15 4:36 GMT+02:00 Jherome Miguel <jheromemiguel at gmail.com>:

> It is quite the same case as like this three pole-mounted transformer bank
> in the Philippines. (https://commons.wikimedia.org/wiki/File:0016jfjfEDSA_
> Taft_Avenue_MRT_Station_LRT_Footbridge_Pasay_Cityfvf_14.jpg)
>
> And for the photo Tristan referred, it is like the one from Wikimedia
> Commons that I referred, and it is actually a three-phase transformer bank
>
> They usually do not look like being independent from each other, and
> usually, the primary, secondary, or both are connected, and transformer
> banks are used to supply three-phase power where single-phase transformers
> are primarily used, like in the United States, Canada, the Philippines,
> Japan, and South Korea, and those countries primarily use single-phase
> distribution, either two-wire or three-wire. And three-phase systems are
> usually for large customers. Two, three, or more transformers on one pole
> used to supply single-phase and independent of each other, however, is
> somewhat difficult to map.
>
> Mapping each transformer in a transformer bank may be appropriate for the
> larger ones used in substations, usually for extra high voltages (345 kV,
> 380 kV, 400 kV, 500 kV, 735 kV, 750 kV, 765 kV) and AC-DC conversion in
> HVDC converter stations, but it is not appropriate for a pole-mounted bank.
> For those mounted on poles, I came up with using the transformer_bank= tag
> instead, yet, that still needs to be approved. You may include it in your
> proposal on transformers, if possible.
>
>
> On Apr 15, 2017 4:56 AM, "François Lacombe" <fl.infosreseaux at gmail.com>
> wrote:
>
> Hi Tristan,
>
> TL;DR : no
>
> I can't see your picture but I assume the transformers are fed by two
> different phases and serve the same area, it's surely a bank and
> TagaSanPedroAko have some nice ideas there
> https://wiki.openstreetmap.org/wiki/Talk:Tag:power%3Dtransformer
>
> If it's two independant transformers, supplying power to separate
> districts or subscribers, then it's currently difficult to use the same
> object and you may use as many nodes as transformers around a pole
>
> This problem rises for antennas on masts/tower. No nice solution so far.
>
>
> All the best in power devices mapping :)
>
> François
>
> 2017-04-14 19:44 GMT+02:00 Tristan Anderson <andersontristan at hotmail.com>:
>
>> Is there a way to indicate that a power pole has multiple transformers
>> such as this one?
>>
>> http://oi65.tinypic.com/2rfu8ly.jpg
>>
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