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Electrical Power Status

Electrical Power Status. Thomas Nehring Conventional Facilities Advisory Committee Review October 5-6, 2010. Outline. Main Substation Ductbank and Feeder Unit substations Going Forward Conclusions. Main Substation. Main substation ~ 80% complete 69kV Tower Work ~90% complete

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Electrical Power Status

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  1. Electrical Power Status Thomas Nehring Conventional Facilities Advisory Committee Review October 5-6, 2010

  2. Outline • Main Substation • Ductbank and Feeder • Unit substations • Going Forward • Conclusions

  3. Main Substation • Main substation ~ 80% complete • 69kV Tower Work ~90% complete • Included 69kV bus mods, new insulators, new switches, new fuses • To be done - Installation & wiring of Potential Transformer • 69kV Breaker ~ 80% complete • Break installed • To be done – secondary wiring and testing • Main transformer ~ 90% complete • One radiator needs to be replaced, damaged during shipment • One weld needs to be repaired • Oil needs to be processed into tank • Balance of testing to be done, winding ratios and bushing tests have been done • Controls and instrumentation to be wired

  4. Main Substation - continued • Main substation - continued • 15kV Bus Duct and Low Voltage Wireway ~ 10% complete • Bus duct in fabrication, to arrive during October • Provisions for installation have started, opening on wall, supports • 15kV Switchgear ~ 80% complete • Switchgear installed • Bus tie to existing Bus 2 to be completed during October • Control wiring to main transformer and 69kV breaker remain • DC wiring to battery to be completed • Testing remains • Switchgear to be energized during October • 15kV Feeder ~ 30% complete • Raceway installed from switchgear to interface point (pull box located near south-east corner of building) • Feeder cable to be installed October

  5. Main Substation - continued

  6. Main Substation - continued

  7. Main Substation - continued

  8. Main Substation - continued

  9. Main Substation - continued • Main substation - continued • Miscellaneous Items Completed • 125 Vdc Battery • Lighting in yard • Secondary containment • Fire wall • Miscellaneous Items to be Completed • DC wiring • Interior lighting modifications • Steam piping modifications • Door replacement • Fire proofing of Building 603 • Grounding ~ 50% complete • Commercial Items • Approximately 4 change orders to be completed

  10. Ductbanks & Feeders Ductbank to be Installed

  11. Ductbanks & Feeders • 15kV ductbank complete less three segments • 480V ductbanks complete less one segment • 15kV Feeders • Cable pulling started late September • 480V Feeders • Cable pulling to start October

  12. Unit Substations & Switchgear

  13. Unit Substations & Switchgear • 6 of 8 unit substations installed • SUS- 2, 3, 5, LB, RF-1, RF-2 on location and assembled • final wiring and testing remains • SUS-4 yard ready for switchgear • SUS-1 last substation yard to be build, should be completed in October • 4 of 8 indoor switchgear lineups installed • Swgr’s 1, 2, 3 & 4

  14. Unit Substations & Switchgear

  15. Going Foward • Start-up: • Follow F & O’s BORE process • Ensure documentation and labeling complete • Perform standard tests for start-up • Manufacturer representative to be present during start-up • Have F & O participate to be present during start-up and review • Operations & Maintenance • Establish operation & maintenance program in F & O system • Turn over to F & O

  16. Conclusions • Power will be available for Beneficial Occupancy • Initial start-up power will be taken from Bus 2, approximately 7 MVA available • Substation contract will be completed around December 2010 • Main transformer will then be used, 20 MVA available • Operation of equipment to be coordinated with F & O tower line crew

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