David Dahle

David Dahle

Posted on 10/10/2015


Photo taken on October  9, 2015


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The Powerline Graveyard The Powerline Graveyard



Keywords

4160V
13.8kV


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Xcel Energy - Sioux Falls, SD

Xcel Energy - Sioux Falls, SD
I have this feeling that the Morrell sub is about to get replaced by some step-downs.

Jesse Lor has particularly liked this photo


9 comments - The latest ones
Power Lines
Power Lines
I wonder what's up with those three new short lines?
2 years ago.
David Dahle has replied to Power Lines
I think these are why Xcel has not repaired the Morrell sub (a bushing on the 69/4kV transformer and one thyrite arrester blew SEVERAL months ago).
2 years ago.
Power Lines has replied to David Dahle
One thing about those new poles, though--the conductors are much thinner than the ones on the pre-existing lines. I wonder if XCEL may be installing a stepdown substation to put the meat plant on a loop?
2 years ago.
Justin S
Justin S
Interesting. Note the four wires on the arm. Somehow I get the feeling that we are looking at the beginnings of the 13.8 kV side of probably the biggest step down step we will ever see.
2 years ago.
David Dahle has replied to Justin S
I wonder if that's what that 3-bay section of the Falls sub is for.
2 years ago.
Justin S has replied to David Dahle
Maybe. I just keep thinking that it would be best practice to run 13.8 kV as close as possible rather than running the 4160 very far. Like Andrew says, those wires seem awfully thin to replace what is there. I can't wait to see what they actually do.

Also, any indication on what they are gonna do with the jailhouse sub?
2 years ago.
David Dahle has replied to Justin S
My suspicion is that the penitentiary sub is going to stay on the 69kV system - but on a radial line that will 'fly over' the Morrell substation site then back uphill to the pen as part of a 115/69kV double circuit.
2 years ago.
David Dahle has replied to Justin S
I should point out that this plant handles far less than what it once did - they shut down the sheep and cattle lines and only do hogs here now. The three areas are too interwoven for the company to dismantle the now unneeded sections (and a few buildings within the complex are actually condemned but too tightly integrated to remove).
13 months ago. Edited 13 months ago.
David Dahle
David Dahle
And the angle structure is gone as of December 2016.
11 months ago.