Tagsight for electrical engineers
The single line diagram changes and four downstream documents need to track with it: the MCC schedule, the motor list, the cable feeder schedule, the conduit schedule. Each lives in a different file, owned by a different package. By the time commissioning is on site the motor list says 42 motors and the MCC schedule says 39 and nobody knows which is the as-built.
What you do today.
- Read the SLD set page by page, transcribe motors into a tabular motor list
- Cross-reference MCC bucket assignments against motor HP and starter class
- Rebuild the cable feeder schedule when MCC bucket positions move between revisions
- Re-issue all four documents together when the SLD set revises and hope they stay in step
What changes with Tagsight.
- Upload the SLD set, get a structured motor list with HP, voltage, starter class, MCC bucket, and feeder reference per row
- Surface MCC bucket assignments as a separate schedule keyed to the SLD page they were drawn on
- Pull the cable feeder schedule and conduit list scaffold off the same drawing pass - one upload, four documents
- Compare two SLD revisions side-by-side; bucket reassignments, motor adds, and feeder reroutes surface as one change report
- Export to the spreadsheet shape your MCC builder expects (Eaton, Allen-Bradley CENTERLINE, Siemens tiastar) without re-typing tags
Where it fits in your week.
MCC builder bid package
EPC sends the SLD set Monday morning and the MCC bid closes Friday. Run extraction, get a clean motor list with HP and starter class per row, hand it to three MCC builders so their quotes come back on the same baseline instead of three guesses.
Brownfield MCC retrofit
Existing MCC is rated 480V on a 600V upgrade scope. Pull the legacy SLDs through extraction, surface every bucket position with its starter class and feeder, hand the retrofit electrician a master register instead of a folder of binder scans.
Conduit and tray sizing from the feeder list
Conduit fill calculations need every feeder size and quantity on a per-route basis. Filter the extracted feeder list by tray section, sum the diameters, ship the conduit sizing to the install crew without a manual count.
FAQ.
Does Tagsight read NEMA and IEC starter classifications correctly?
Yes. NEMA size 0 through 7 and IEC class 1 through 4 starter notations both read as drawn. The motor list export carries whatever class notation the source SLD used; conversion between NEMA and IEC is a separate engineering step, not a silent normalization.
Can I extract from a hand-drawn or scanned legacy SLD?
Yes. Scanned and photographed SLDs process the same way as CAD-exported PDFs. Lower-confidence rows are flagged for review before export so an MCC bucket position pulled from a faded scan never ships without a second pair of eyes.
Are cable feeder calculations included?
No. Tagsight extracts the as-drawn feeder reference (size, type, length where the drawing notes it). NEC ampacity calculations, voltage drop, and short-circuit current studies stay in your electrical analysis package; the extracted feeder list is the input to that calculation, not the calculation itself.