A complete, real 69/13.8kV distribution substation design drawing set — 42 sheets spanning general/index, civil/site, architectural equipment layout, structural, single-line diagrams, 69kV switchyard, 13.8kV switchgear, grounding, lightning protection, control house, SCADA/RTU and communications, protection & relay panels, bill of materials, and engineering calculations — presented as a zoomable interactive reader so every dimension, callout, and calculation stays legible. Pinch or Ctrl/Cmd-scroll to zoom into any sheet. The first 3 sheets are free to preview above — the remaining 39 sheets unlock with a one-time $4.99 purchase.
Unlock all 42 sheets: site/civil plans, structural foundations, single-line diagrams (overall, 69kV, 13.8kV), 69kV switchyard and 13.8kV switchgear layouts, cable routing/schedule, grounding and lightning protection, control house architectural/power/HVAC plans, SCADA/RTU and communications diagrams, protection relay panels and schematics, bill of materials, fault current study, IEEE 80 grounding calculations, and commissioning procedures. Instant access after purchase — yours to keep, no expiration.
Or skip picking — the All-Access Pass unlocks every Professional Program, exam, and premium guide on the site, including anything added later, for one flat price.
A complete design package for a 69/13.8kV distribution substation with a four-breaker ring bus topology, two 24/32/40 MVA power transformers, 12 13.8kV feeders, and roughly 56 MVA of connected load: the drawing contents index, general notes/abbreviations/legend; overall site plan, grading & drainage plan, and site layout plan; overall equipment plan; structural general notes and foundation plan; single-line diagrams for the overall system, the 69kV side, the 13.8kV side, station service/auxiliary power, the DC battery system, and lighting/receptacles; the 69kV switchyard plan and details, the 13.8kV switchgear plan, and cable trenching/routing plan with cable schedule; grounding plan and details, and lightning protection plan and details per NFPA 780/IEEE 998; control house architectural plan, elevations & sections, power & lighting plan, HVAC plan, and construction details; SCADA/RTU architecture diagram, communications schematic, SCADA point list, and telecom/fiber routing plan; relay panel layouts and wiring diagrams for both voltage levels and protection & control schematics; bills of materials for equipment and for cables/conduit; and engineering calculations covering the fault current study, relay settings basis, and IEEE 80 ground grid design.
Scroll or use the Prev/Next buttons at the bottom to move between sheets, or press the arrow keys. Click the ☰ menu button in the top-right to open the full sheet index and jump directly to any sheet. To zoom in on a detail — a dimension string, a relay setting, a calculation table — hold Ctrl (or Cmd on Mac) and scroll, pinch on a trackpad or touchscreen, or use the +/− buttons in the bottom-right corner; drag to pan while zoomed in, and double-click or use the reset button to return to the full-sheet view.
Electrical and power engineers studying how a complete distribution substation design package is actually assembled across multiple disciplines (general, civil, architectural, structural, electrical power, protection & control, and SCADA/communications), utility staff and contractors who want to see a full real drawing set before bidding similar work, and students learning substation design fundamentals — ring bus topology, transformer sizing, grounding grid design, and protection & relay coordination — applied to a real system rather than an isolated textbook example.
It is a complete, realistic 69/13.8kV distribution substation design package built to the same structure and content a licensed power engineer would produce — general, civil, architectural, structural, electrical, protection & control, and calculation sheets, plus bills of materials — not a simplified textbook illustration.
Yes. Every sheet is a high-resolution image and the reader supports pinch-zoom, Ctrl/Cmd-scroll zoom, and click-drag panning, so you can zoom into any dimension string, relay setting, or calculation value for a clear, legible view.
The first 3 sheets — the drawing contents index, general notes/abbreviations/legend, and overall site plan — are free with no purchase or account required. The remaining 39 sheets unlock with a one-time $4.99 purchase.
No. Checkout is guest-only via Stripe — no account required. After purchase you get a bookmarkable access link, and you can always recover it later with the restore-by-email link using the email you checked out with.
This is an in-browser interactive reader, not a file download — it is designed for studying and referencing the drawing set directly in your browser with full zoom/pan detail, similar to the site's other interactive readers and illustrated guides.
Disclaimer: This drawing set is an educational reference example illustrating a typical distribution substation design package and its supporting engineering calculations. It is not a construction document for any real project, has not been engineer-stamped for a specific application, and should not be used for actual construction or commissioning without independent review by a licensed power/electrical engineer. Always verify system studies, protection coordination, grounding grid design, and safety requirements (including IEEE 80, NESC, and NFPA 70E) against the specific application and applicable codes.