Elora Grid

For electrical drafters and designers

From your single line diagram to the full drawing set.

Upload the SLD. Elora Grid drafts the control schematics and tender GA in your title block, flags gaps as RFIs, and issues nothing until your engineer approves.

No credit card required

In short

What a single line diagram is, and what happens to it here

A single line diagram (SLD, or one line diagram in the US) shows an electrical system's sources, switchgear, protection devices and loads as one line per circuit. Elora Grid reads the SLD from a tender pack and drafts what follows it: control schematics from your circuit library, with wire and terminal numbers, and the switchroom or enclosure general arrangement with clearances and dimensions. Gaps in the SLD become RFIs, and nothing is issued until your engineer approves.

How it works

From SLD to drawing set in three steps

01 · Control schematics

A first issue schematic set, built from the SLD

Control schematics drafted from the single line diagram and your circuit library, with wire numbers, terminal numbers and cross references checked across the set.

  • Circuits from your library, not invented
  • Wire and terminal numbers carried through every sheet
  • Schematic register and cable schedule as a spreadsheet
02 · Tender GAs

The general arrangement, read off the SLD and equipment list

A switchroom GA from the SLD and equipment list, or a generator enclosure GA from the noise and airflow calculation, with measured dimensions, hatched clearances, a TBC table and the RFIs.

  • Equipment placement and access clearances
  • Open items listed as RFIs on the sheet
  • Tender GAs, not fabrication drawings
03 · AutoCAD files

Files your drafters open in AutoCAD

Approved drawings come out as DWG, DXF, PDF and PNG, in your title block and to your drafting standard.

  • DWG and DXF your drafters can edit
  • Your title block, symbols and numbering
  • A PDF copy to send with the quote
Project files · Zone substationExample
  • DWGSLD-2001 Single line diagramRev C · 14 layersPDF
  • DWGSC-1043 Power schematicRev A · 11 layersPDF
  • DWGGA-2101 Switchroom layoutRev A · 18 layersPDF

Opens and edits in AutoCAD. PDF copies for review.

04 · Approval and revisions

Every sheet is a proposal until your engineer approves it

It cannot issue in the same step it drafts. Send a client redline and each item is changed or declined with a reason, clouded, and logged in the change register.

  • Every version saved, compare any two, restore any one
  • Client redlines applied item by item and clouded
  • A change register for clients and audits
SLD-2001 Single line diagram · Revision historyExample
  1. Relay 50/51 pickup setting changed

    Rev C · Engineer review · 14 Sep, 10:42

    400 A450 A
  2. AUX TX feeder added to the 11kV bus

    Rev B · AI update from markup · 12 Sep, 16:05

    AUX TX
  3. First issue for review

    Rev A · AI draft from markup · 10 Sep, 09:18

Every revision kept. Open any earlier version.

Who it is for

For the switchrooms, substations and plants you design

Switchrooms and MCCs
Substations and HV
Battery storage and microgrids
Power generation

Your team stays in charge

Your drafters sign off

Every drawing is a proposal until your engineer approves it.

Nothing invented

If the SLD does not show it, it becomes an RFI.

Your drawing standards

Your title block, symbols and numbering, loaded once or read off your past drawings.

Private by default

Nothing you upload is used to train a model.

FAQ

Questions, answered

Does it draw the single line diagram?

Not today. It reads the SLD you have (DWG, DXF or PDF) and drafts the control schematics and general arrangement from it.

What does a single line diagram need to show for the schematics to follow?

Sources and tie arrangements, the protection and control devices on each circuit, and equipment tags. Anything missing is listed as an RFI to close with the client before issue.

Will the drawings match our drafting standard?

Yes. Your title block, symbols, numbering, wire numbering, clearances and layout rules are stored in Settings, or read off your past drawings and confirmed with you. A missing standard is marked TBC on the sheet.

What files come out?

DWG, DXF, PDF and PNG, plus a spreadsheet register: schematic register and cable schedule, GA register, or change register for a revision.

What happens when the client marks up the drawings?

Send the redline PDF with the drawing. Each item is changed or declined with a reason, every change is clouded, and the change register records what moved.

Is this a general arrangement for fabrication?

No. It is a tender GA for pricing and layout review. Fabrication and construction drawings stay with your drafters.

Book a demo

Send a real SLD. Get the drawings back.

We'll draft the schematics and GA from one of your past tenders, so you can check them against your own.

  • A reply from a person, usually within one business day
  • Run on one of your own jobs or demo data
  • NDA available on request