500kV Nuclear Substation Full Relay Upgrade

The project

Complete protection and control relay upgrade for an entire 500kV nuclear substation — five 500kV lines, two 500/230/12kV transformers, two capacitor banks and twenty MODs, with all-new microprocessor relays across 27 new panels.

Scope of work

• Five 500kV lines: four breaker-and-a-half, one double-bus double-breaker
• Two 500/230/12kV transformers and two 500kV capacitor banks
• 27 new panels including SCADA, metering and LTC
• Twenty motor-operated disconnects (MODs)
• Schematics package for IFA with associated demolition drawings
• Comment incorporation prior to IFC submittal
• Full wiring drawings package submitted for IFC