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J.F. White was contracted by National Grid to provide Primary and Secondary upgrades to the Substation.
Primary upgrades include; replacement of 5 existing 115KV breakers, installing 2 new 115KV breakers, into a new 115KV bay, replacing multiple CCVT’s and 115KV disconnect switches, replacement of 2 existing 345KV breakers, and associated 345KV disconnect switches. In addition, existing E1/115KV transmission line was relocated to the new 115KV bay, which required 5 new transmission structures on steel reinforced concrete foundations, related transmission re-conductoring, and removal of 2 existing structures with their related conductors.
Secondary upgrades include; Replacing all control cabling in the Bridgewater substation to meet bulk power supply standards including new control / protection systems, and a new 345/115KV BPS control house.
No interruption to the power grid during the transition to the new equipment.
Contract value: $10,750,000 |