Loading
CL&P Waterbury: S. Main St. 13.8/4.8 kV Line
I have some unfortunate news to bring to you all: the beloved South Main Street 13.8/4.8 kV distribution line in Waterbury, Connecticut has met its demise.

EVERSOURCE Energy has replaced every single pole on that line from 1077 to 2180 South Main Street. All the new poles feature fiberglass arms and 35 kV visetops.

In addition, the 4.8 kV underbuild has been stripped from the line over the entire rebuilt span. While any removal of 4.8 kV distribution is cause for concern, the level of concern here is relatively low since it was a spur on the end of one of many distribution lines. All the remaining 4.8 kV trunk and branch lines remain intact, and are likely to stay in service for several years.

This is, however, undoubtably a step in a long-term project to eliminate the extensive 4.8 kV distribution system in Waterbury.

Here is a view of the beginning of the rebuilt segment:

goo.gl/CnPGUX

And the end:
goo.gl/2McBZE

Below are some photos I took of various poles along the line, all of which are n







5 comments

Power Lines said:

One piece of good news is that the legendary New Britain, CT 13.8/4.8 kV line with glass insulators on the underbuild is still around:

goo.gl/keU9hH

It has been placed on my "concern" list, though, since the 4.8 kV underbuild is a radial line less than a mile long, rather than a trunk line. It may meet its demise through EVERSOURCE's "trimming the ends" philosophy on the 4.8 kV grid.
5 years ago

David Dahle said:

Looks like they simply cut a chunk out of the 4800V system. Further down one end one can see an Eversource truck - that's a pretty blah logo.
5 years ago

Power Lines said:

Boring logo, boring construction, and boring name! These "make up a word and add 'energy' to it" utility names are quite bland and uninteresting, and offer no relation to a utility's history or heritage.
5 years ago

austintaylor619 said:

I think some utility companies are planning on upgrading 2.4, 4.16, 4.8, and 8.3kV circuits to higher voltages to decrease the number of overloads on their grids. 12.5, 13.2, 13.8, 22.9, 27.6, and 34.5kV circuits probably provide more power then the 2.4, 4.16, 4.8, and 8.3kV circuits do.
5 years ago

David Dahle replied to austintaylor619:

So true. The Cliff Ave. 13.8kV project here in town a couple years ago consolidated what used to be four 4160V circuits into a single 13.8kV circuit.

Also, MDU has converted several 2400V and 7200V delta systems to 4160V and 12.5kV Y systems respectively, and at least 1 more conversion is in the pipeline.
5 years ago