David Dahle

David Dahle

Posted on 05/30/2014


Photo taken on May 24, 2014


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13.8kV


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Northern States Power - Minot, ND

Northern States Power - Minot, ND
Just another 'memory pole' from Minot. The reason for the big gap between the primary and secondary is that this line was an overbuild replacement of an older 4160V circuit. Seems one way Minot handled the 4160V conversion was to replace the older circuits with a double-circuit line then strip away the 4160V after the conversion was done - MDU took that approach in Bismarck as well.

Jesse Lor, Hungry4Power have particularly liked this photo


Comments
Justin S
Justin S
So was the 4160V system supplied by the 13.8 kV system or was it supplied by a long gone subtransmission system? Perhaps 23.9 kV?
3 years ago.
David Dahle has replied to Justin S
There were a number of small 4160V subs around town (I am not sure if the subtransmission was 13.8kV or 23.9), but NSP was aggressive enough in the rebuild during the late '70s / early '80s that there is ZERO trace of any of these small subs today.

The entire Minot district (that includes Burlington, Lonetree, Des Lacs, Berthold) is served by a single 115/13.8kV sub.
3 years ago. Edited 5 months ago.
Justin S
Justin S
That's sounds similar to what I think happened in this area. There are parts of town that were converted to 13.8 at about the same time, and with a few exceptions, they went all out in the rebuild. I assume it wasn't too long after that when NSP started extending the 34.5 kV system for distribution.
3 years ago.