OSOS-DORAENENGINEERING AUTOMATION Get Free Toolkit
PRACTICAL DIGITAL TOOLS FOR ENGINEERS

Engineer Smarter.
Automate More.

Turn everyday engineering calculations into faster, more structured workflows with practical automation built for real engineering work.

Get the Free Cable Sizing Toolkit →Explore features ↓
✓ Excel-based✓ Practical workflow✓ Free edition
CABLE SIZING
AUTOMATION
Design Current126.4 A
Selected Cable3C × 70 mm²
Voltage Drop2.18%
Short CircuitPASS
✓ Engineering checks completed
OS-DORAEN™ ENGINEERING AUTOMATION
01CALCULATE
02CHECK
03SELECT
04DOCUMENT
FREE PROFESSIONAL TOOL

Cable sizing without the spreadsheet chaos.

OS-DORAEN™ Volume 3 is a practical Excel-based cable sizing automation toolkit designed to bring the main electrical checks into one structured workflow.

Get the Toolkit →
VOLUME 03FREE EDITION
  • 01 Motor / load calculation
  • 02 Cable capacity & derating checks
  • 03 Starting & running voltage-drop review
  • 04 Short-circuit withstand check
  • 05 Automatic cable selection & protection review
Verify project specifications, applicable standards and approved manufacturer data before final design use.
WHAT'S INSIDE

Four things the toolkit helps you do.

01

Size systematically

Move from load current through derating and cable capacity checks in a structured calculation flow.

02

Check voltage drop

Review starting and running voltage-drop performance using cable resistance and reactance data.

03

Review short circuit

Check cable short-circuit withstand alongside the prospective fault-current workflow.

04

Select automatically

Use the cable master data and automated logic to identify a standard cable option meeting the checks.

WORKFLOW

From input to engineering decision.

01Enter motor/load data
02Apply design conditions
03Run cable checks
04Review selected cable
ABOUT OS-DORAEN

Engineering knowledge, turned into useful tools.

OS-DORAEN™ focuses on practical digital products for engineering professionals — automation, calculators, templates and workflows that solve real work problems without unnecessary complexity.

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FAQ

Before you download.

Is the toolkit really free?

Yes. Volume 3 is being released as the first free OS-DORAEN product.

What software do I need?

The core product is an Excel workbook. Use a compatible desktop spreadsheet application that supports the workbook's formulas and features.

Can I use the results directly for construction?

The workbook is a calculation aid, not a substitute for project specifications, applicable standards, approved cable manufacturer data, or engineering review.

Who is it for?

Electrical engineers, MEP professionals, project engineers, consultants and engineering students who work with cable sizing and related calculations.