Practical tools for theengineers we train
A companion workspace for our CAD, BIM and technical students — sizing calculators, formula sheets, drawing templates and curated links, all in one place so you can practice with the same tools used on real projects.
Data Center Electrical Calculators
Preliminary sizing tools for practicing the same calculations covered in our technical courses — each calculator has its own page with worked formulas, so you can bookmark, share or search for the exact one you need.
Conductor Sizing
Free HV (HT) and LV cable sizing calculator, plus busduct and earth cable size calculation. Four IEC/IS-aligned tools in one place, each checking ampacity, voltage drop and short-circuit withstand rather than giving a rough estimate.
Open calculatorTransformer Sizing
Size a power transformer to the nearest standard IEC 60076 kVA rating from connected load, power factor and spare capacity, with primary and secondary full-load current.
Open calculatorUPS Selection
Size a UPS system across Single, N, N+1, Distributed, 2N and 2(N+1) redundancy philosophies, with losses, battery charging load, and standard kVA rating libraries.
Open calculatorGenerator (DG) Sizing
Size a standby diesel generator set per ISO 8528, sized on the larger of steady-state running load and the voltage-dip-limited starting requirement of the largest motor.
Open calculatorBreaker Sizing
Calculate full load current and recommended breaker rating for general distribution and motor feeder circuits, with instantaneous trip range for common starting methods.
Open calculatorShort-Circuit
Estimate prospective short-circuit current (Isc) per IEC 60909 at a transformer's terminals, or downstream at the end of a cable, plus the minimum cable size for the fault withstand.
Open calculatorPower Factor Correction
Calculate the capacitor bank (kVAR) needed to correct power factor to a target value, per IEEE 141, with the resulting reduction in apparent power (kVA).
Open calculatorLighting Design
Calculate the number of luminaires needed for a target illuminance using the lumen method per EN 12464-1 / IESNA RP-20.
Open calculatorGrounding Resistance
Calculate earth electrode resistance for a vertical rod, horizontal strip/plate, or ring electrode, per IEEE 80 / IEC 60364-5-54.
Open calculatorBattery Runtime
Estimate UPS battery backup runtime from Ah, bank voltage, depth of discharge and inverter efficiency, plus the reverse calculation for a target backup time.
Open calculatorPUE / WUE / CUE
Calculate Power Usage Effectiveness, Water Usage Effectiveness, Carbon Usage Effectiveness and DCiE per The Green Grid definitions.
Open calculatorCooling Load
Preliminary IT-load-driven cooling capacity sizing in tons of refrigeration, with an other-heat-gains allowance and a redundancy margin.
Open calculatorMotor Starting Dip
Estimate the voltage dip at the point of common coupling during motor starting for DOL, star-delta, soft-starter and VFD starting methods.
Open calculatorVoltage Drop
Calculate LV cable voltage drop in volts and percent from current, length, conductor size, material and power factor, and check it against your allowed limit.
Open calculatorQuick Formulas
Instant Ohm's Law, impedance, resistance, and single-phase/three-phase power calculations from voltage, current and power factor.
Open calculatorInteractive Physics Simulators
Beyond the calculators — visual, interactive simulations for building intuition around the electrical fundamentals behind the numbers.
Generator Physics Simulator
A synchronous generator rotor spins inside a fixed stator. Change the pole count and grid frequency to see synchronous speed respond in real time (Ns = 120f / P), watch magnetic flux sweep past each phase winding, and read the resulting Faraday's-Law EMF and three-phase sine waves as they're generated.
Electron Drift vs. Field Speed
Close the switch and a lamp meters away lights up almost instantly — because the electric field propagates through the conductor at a large fraction of the speed of light. But the electrons that actually carry the current only drift at a snail's pace. Adjust the current and wire size and compare both speeds directly.
Electrical & Data Center Standards
The standards our calculators and coursework are aligned with, organized by topic — a quick reference for what to cite and where to look things up.
General Electrical Installation
Protection, Short-Circuit & Safety
Transformers, Generators & UPS
Cables & Conductors
Earthing & Lightning Protection
Data Center Specific
Reference Documents & Templates
Formula sheets, standards summaries and drawing templates that support what you learn in class. New items are added here regularly.
Standards & Formula Sheets
Quick-reference formula sheets and standard summaries used across our CAD, BIM and technical courses.
An 18-section reference covering power distribution, load calculations, cable sizing, voltage drop, short-circuit, grounding, lightning protection, motor starting, transformers, harmonics, power factor correction, lighting design and more, with worked examples and standards comparisons.
Ohm's Law, power equations, and cable sizing formulas condensed onto a single reference page.
Layer naming, line-weight and title-block conventions taught in our Drafting & Design course.
A plain-language walkthrough of common BIM execution plan requirements for student projects.
Templates & Drawings
Starter templates and drawing files to practice with inside AutoCAD, Revit and related tools.
A ready-to-use A1/A3 title block and border, matching the format used in class exercises.
A pre-configured Revit template with common families, ready for BIM coursework.
A printable checklist for capturing site measurements before starting a drafting assignment.
Curated External Resources
Trusted, external sites our instructors point students to for deeper reading, official documentation and practice.
AutoCAD Documentation
Official Autodesk help center for AutoCAD commands, workflows and updates.
help.autodesk.comRevit Documentation
Official Autodesk help center for Revit and BIM workflows.
help.autodesk.comThe Engineering ToolBox
Widely used reference for engineering formulas, unit conversions and design data.
engineeringtoolbox.comIEC Webstore
Browse official International Electrotechnical Commission standards.
webstore.iec.chNFPA 70 (National Electrical Code)
Reference portal for the National Electrical Code, maintained by the NFPA.
nfpa.orgNPTEL Engineering Courses
Free video lectures on core engineering subjects from IITs and IISc.
nptel.ac.in