69kV/12kV Substation Rebuild
69kV/12kV Substation Rebuild
Orbital provided the engineering services required for an upgrade to an existing substation 69kV substation. The existing substation had two incoming 69kV feeds, two 28 MVA transformers, two outdoor 1200A transformer secondary breakers, and six outdoor 800A reclosers. Rather than maintain the existing outdoor design, the upgraded station included a new double ended switchgear. To minimize down time, the substation was expanded to allow for the new equipment to be installed while the existing station remained energized.
Scope of Work
- Expand substation yard to facilitate installation of new substation equipment while existing station remains energized.
- Develop site/grading plan including new driveway access
- Design new station grounding
- Design new lighting
- Design new substation layout:
- Two new 69kV line disconnect switches
- One new 69kV load break bus tie switch
- Two new 69kV circuit switchers
- Two relocated 28MVA transformers from old station
- One double ended switchgear with six 12kV feeders
- Design protection and controls and new communications for substation.
- Single Line and Phasing Diagrams
- Schematic Diagrams
- Wiring Diagrams
- Communications Network Diagrams
- Redesign incoming 69kV lines to terminate on new substation equipment.
UAV Inspection
Unmanned Aerial Vehicle (UAV) Inspections combined with Alignment Surveys of Crane Runways Orbital Technical Solutions (OTS) provided Asset Integrity Services with use of Unmanned Aerial Vehicles (UAVs) and survey equipment. The equipment was used to complete visual...
