Tag:transformer=distribution

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Public-images-osm logo.svg transformer = distribution
French transformer on pole.jpg
Description
A standalone distribution transformer transfers power from the distribution grid to directly connected electricity consumers. Installed outside of any substation. Edit this description in the wiki page. Edit this description in the data item.
Group: Power
Used on these elements
may be used on nodesshould not be used on waysshould not be used on areasshould not be used on relations
Requires

or

Useful combination
Status: approvedPage for proposal

A distribution transformer transfers power from the distribution system to directly connected electricity consumers.
Thus the output voltage is that of the low voltage grid in that region. For example 400/230 volt in Europe or 240/120 volt in the US.
If the secondary voltage is above 1 kV it is not a distribution transformer.

This class is used outside of proper substations (they would be main in a substation).

Note for pole mounted distribution transformers you should use this tag together with power=pole (thus no explicit power=transformer tag).

This value definition was slightly changed by Proposed_features/Transformers_classification_refinement.
See power=transformer for additional details and examples.

Examples

Photo Location Tagging Note
Pole mounted transformer, Denmark Denmark

nodepower=pole
transformer=distribution
voltage:primary=10000
voltage:secondary=400
windings=2
phases=3
frequency=50

Typical pole mounted 10 kV transformer.
Transformer on power pole France

power=pole
transformer=distribution
voltage:primary=20000
voltage:secondary=400
windings=2
phases=3
frequency=50

Transformers can directly be hosted on poles to save ground place and prevent complex infrastructure building when not needed.
Multiple mono phase transformers on a single pole United States

power=pole
transformer=distribution
voltage:primary=13800
voltage:secondary=208
windings=2
transformer:devices=3
phases=1
frequency=60

Multiple mono phase transformers used on a 3-phase network
Outdoor distribution transformer
Norway

nodepower=transformer
transformer=distribution
voltage:primary=22000
voltage:secondary=240
manufacturer=AS National Industri
rating=50 kVA
frequency=50
phases=3
windings=2
ref=196

A distribution transformer seen outdoor in Norway with figures displayed on the red plate