Opened 6 months ago

Last modified 5 months ago

#15367 new enhancement

Power transformer extension

Reported by: francois.lacombe Owned by: team
Priority: normal Milestone:
Component: Internal preset Version:
Keywords: power, transformer Cc:

Description (last modified by francois.lacombe)


An extension proposal had been accepted regarding power transformer mapping. Both power transformer and power pole with transformer presets should be updated.

Tagging of power=transformer has been updated accordingly

User should be prompted for the following tags (with according label), out of casual ones :

  • transformer= {distribution, generator, converter, traction, auto, phase_angle_regulator, auxiliary, yes} (Function of transformer)
  • location=* (Transformer location)
  • phases=* (Number of phases)
  • frequency=* (Operating frequency)
  • voltage:primary=* (Primary "power plant side" voltage)
  • voltage:secondary=* (Secondary "consumer side" voltage)
  • voltage:tertiary=* (Tertiary "auxiliary side" voltage)
  • windings=* (Number of windings)
  • windings:configuration = {star, delta, open-delta, zigzag, open, scott, leblanc} (Windings configuration)
  • rating=* (Rating in VA)
  • devices=* (Number of different transformer devices)

voltage=* key shouldn't be used any more on power transformers.

Additionally, some validation rules should be created as follow and warn users :

  • Check rating=* is given in VA and without any unit in the value (like multiples kVA, MVA,...)
  • Check voltage=* isn't associated with power=transformer or transformer keys

Thank you in advance to take care of this, all the best.

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Change History (5)

comment:1 Changed 6 months ago by francois.lacombe

Description: modified (diff)

comment:2 Changed 6 months ago by francois.lacombe

Component: External presetInternal preset

comment:3 Changed 5 months ago by Penegal

I agree with that request, especially the new voltage:* tagging, which significantly improves power tagging.

@francois.lacombe: I think the only check to do about rating is that it must be a number, as JOSM won't be able to check by itself if it's in VA.

comment:4 Changed 5 months ago by Penegal

I might add that, for poles with transformer, a switch=* preset could be very useful, as these poles often have switches to cut the line departing from the transformer.

comment:5 Changed 5 months ago by francois.lacombe

Hi Penegal,

Please read this about the power preset on iD where I try to convince them about rating without unit tagging.
I definitely believe it's great, but that's not everyone opinion.

I write you a more detailed mail about low volvate circuit breakers beside transformers.


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