Greenfield Switching/Substation

October 2012 – January 2015

The scope of the project was to establish a new greenfield Switching Station and Substation near Martensville, Saskatchewan. The Switching Station included two 230/138-13.8 kV 180/240/300 MVA auto transformers with 230 kV and 138 kV bus work.

The substation included two 138-25 kV 30/40/50 MVA transformers with ultimate provision for six 25 kV Distribution Feeder Bays.


Detailed Design Included:

  • Preparation of construction drawings for single line, general arrangement, fencing, ducts, cable trench, grounding, and other physical detail drawings relating to outdoor work and panel details
  • Preparation of construction drawings in Elecdes for schematics and wiring diagrams for Switching Station control and protection, AC/DC systems, and interface with SCADA and telecommunication systems
  • HMI schematic and wiring drawings, physical drawings (PD), I/O racks design and network communications drawings
  • Grounding and lightning shielding study
  • Preparation of technical sections and evaluation for any tenders as required (examples include grounding, electrical site works, panel fabrication, switchgear upgrades, site wiring and commissioning).  The documentation required for the tenders included, but was not limited to: technical specifications, bill of materials, evaluation criteria, and any other special requirements
  • Technical evaluation of tenders and preparation of evaluation report and recommendation for award
  • Preparation of job specifications (work orders) for internal construction crews as required
  • Preparation of statement of work and material requisitions
  • Coordination with various departments as required (examples include Protection, SCADA, Civil, Communications, Lines, PMO, Land, Legal, Environment) for completion of all engineering deliverables
  • Site inspection as required during design
  • Design of temporary facilities during construction as required
  • Prompt technical support during construction and commissioning
  • As Built drawings based on markups by others, and ensuring receipt of all As Built markups from construction services
  • Consolidation of As Builts