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ESB small xformers in the republic of ireland are *VERY* similar to the can-shaped device posted above.

The 16 kVA unit referred to above is made by a company called Pauwels Trafo in Cavan RoI.
I would expect that the ESB may use some of these.

Several people referred to the US style can transformer, I don't think I have seen a picture posted on this forum before so here is an actual example of a single phase or maybe I should say split-phase service for comparison.

[Linked Image from img75.imageshack.us]

Martin.

Link Edited.

[This message has been edited by MartinX (edited 01-12-2006).]