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Eastport Substation

Eastport Substation, Rochester, NH

115kV Substation Expansion

Realtime engineered the expansion of the Eastport Substation, expanding bus and adding new line and breaker positions.

Project Scope:
Phase I – (2) bay, breaker and a half configuration, with (3) line positions
ultimate configuration – (4) bay, breaker and a half configuration, with (8) line positions

Realtime’s Design Included:

  • (2) 115kV, 2000A SF6 GCBs, 11 CCVTs, 15 LAs, 2 WTs.
  • (5) 115kV motor operated disconnect switches.
  • (7) 115kV vertical break disconnect switches.
  • New 477, 795, and 1590 kcmil ACSR conductors, 115kV bus.
  • New structures, foundations, and control house.
  • Primary and secondary high speed line protection and control systems.
  • O&E plan, electrical, and P&C scoping documents.
  • P&C description.