David Dahle

David Dahle

Posted on 09/29/2013


Photo taken on September 29, 2013


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The Powerline Graveyard The Powerline Graveyard



Keywords

69kV
4160V
Westy


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Xcel Energy - Salem, SD

Xcel Energy - Salem, SD
A Westinghouse transformer on one of the 69kV poles near the sub. The transformer likely was inherited from Cengas as they are not at all common in the original NSP system.

The reason for the lines being skewed is that the 69kV line follows the former railroad alignment while the 4160V line follows the highway. :)

Too bad the 69kV line got 'yukked' - that was a couple years ago now.

André J.(Lineman80), Jesse Lor, Tony Glen, Power Lines have particularly liked this photo


Comments
Power Lines
Power Lines
Nice find! I like how they mounted the cutout for the distribution can on a separate crossarm. CL&P would always cram the transformer and both cutouts (since they ran 4.8kV delta) on the primary arm.
4 years ago.
David Dahle has replied to Power Lines
Seems the second arm for the cutout(s) has long been a NSP trait and which may well be a carryover from when they mounted the transformers below the secondary. I guess the thinking is that if a cutout fails and burns the arm, it's not as big an emergency as if it was the line arm that burned.

It is interesting to see Xcel returning to that spec (as shown in some of Justin's pics) after using toothpick brackets for a while.
4 years ago.
Power Lines has replied to David Dahle
I'm surprised they don't stick the cutout and arrester on a two-way chicken wing bracket. Those setups are real slick. I've seen 'em done on risers a lot here in Connecticut where HELCO ran the grid.
4 years ago.
David Dahle has replied to Power Lines
The toothpick brackets spoken of actually have 3 mounting holes on the end so those have been used to support a cutout, arrester and either a tap or riser.

I guess the second arm method was good enough for the NSP linemen who obviously rebuilt the system after 1962. :)
4 years ago.
David Dahle
David Dahle
Salem now has a 13.8kV system.
12 months ago.