Metro NE RR Corridor ISO-NE NY-NNC Interconnect Towers

By Joe Maurath, Jr.; posted April 29, 2011

View Original: Click to zoom, then click to magnify (669 x 948) 230KB

 


These truly artistic towers were originally constructed as a river crossing in the early teens for transit service between New Haven, CT and New York City. Additions to these superstructures were completed at some point in time, thus providing one of six interconnects between the Independent Service Operator New England (ISO-NE) and Independent Service Operator New York (ISO-NY) grids currently in operation, transferring many MW (megawatts) of electricity in either direction between the two exchanges.

The towers you see remain exactly as you see. Photo information thanks to Jill McLaughlin of Vernon, CT.. We are unsure if the suspension insulators you see atop these stancions are glass.

Great views of this line are visible along Interstate 95 in Connecticut, mostly between New Haven and NYC.

Of particular note is much of the original 11kv infrastructure completed 100 years ago along the same route that now serves Amtrak and other electrified rail lines in a lucid amount of superbly-interesting line-construction geometry as you view along this line! Those 11kv lines are seen here and are the lowermost ones, typically with three 10-inch-diameter suspension insulators connected to them in sometimes-quite-interesting geometry depending on the structures' angle and caternary requitements.

The overhead interconnect grid extends between New Haven, CT (The United Illuminating Company) and New York City (The Consolidated Edison Company). United Illuminating Company (CT) is assumed to own the transmission as seen here and in the *Click Previous* photo. The export/import transfer contract limit is around 120 MW (magawatts) at 138kv. Taps along this line also serve Stamford, Norwalk and other CT cities along the I-95 corridor.

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