Repair 34.5kV Utility Intertie Point
Portsmouth Naval Shipyard, Kittery, ME
Portsmouth Naval Shipyard required a second 34.5kV utility intertie point to the existing Franklin Substation to improve system reliability and increase system capacity. The Franklin Substation was originally constructed in 1982. read more
Repair 34.5kV Utility Intertie Point
The new 34.5kV service included the construction of a 336.4MCM ACSR overhead line on existing steel towers from the existing CMP metering point to the Franklin Substation. A new steel tower was added to accommodate the transition to the new substation high side structure.
General site work included the expansion of the existing substation yard and ground grid, installation of equipment foundations, a transformer oil containment with oil-detection system and stormwater discharge pump, and duct and manhole systems.
A full complement of electrical studies were performed including short circuit, equipment sizing and arc flash hazard.
