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Phase Academy
INTERACTIVE ELECTRICAL ENGINEERING LEARNING

Learn power systems by changing the system—and seeing what changes.

Interactive labs, calculators, and guided field workflows that show the math, visualize cause and effect, and build practical engineering judgment.

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THREE PHASES. ONE CURRICULUM.

49TOOLS YOU CAN OPEN TODAY
9LEARNING PATHS
19CALCULATORS
8ARTICLES
START WHERE YOU ARE

Pick the entry point that fits your work

Student or apprentice

Build fundamentals with concepts, worked examples, and labs that show each step.

START WITH FUNDAMENTALS

Engineer

Fault current, coordination, arc flash, and sequence-component analysis you can drive.

OPEN ANALYSIS TOOLS

Technician or commissioning tech

NETA-aligned field workflows with structured test records you can reuse.

GO TO FIELD TESTING

Instructor or contractor

Sequenced paths and NEC practice you can assign, plus code-aware calculators.

BROWSE LEARNING PATHS
START IN FIVE MINUTES

Three short experiences, no account needed

NEC CALCULATORS
Availability: AVAILABLE

Voltage Drop Calculator & Explorer

Calculate AC voltage drop percentage using conductor resistance and reactance from NEC Chapter 9 tables, applying power factor and temperature corr…

CALCULATOR · 10–20 MIN · ENGINEER
  • NEC
  • IEEE
  • VOLTAGE DROP
BEGINNERVIEW LAB
ARC FLASH
Availability: AVAILABLE

Arc Flash Concept Simulator

Explain how incident energy is influenced by available fault current, clearing time, working distance, and equipment configuration.

SIMULATOR · 15–35 MIN · ENGINEER
  • NFPA 70E
  • IEEE 1584
  • ARC FLASH
INTERMEDIATEVIEW LAB
NEC CALCULATORS
Availability: AVAILABLE

Box Fill Calculator

Apply the five NEC 314.16(B) counting categories — conductors, clamps, support fittings, device yokes, and equipment grounding conductors — and sta…

CALCULATOR · 10–15 MIN · CONTRACTOR
  • NEC
  • BOX FILL
  • NEC 314.16
BEGINNERVIEW LAB
LEARNING PATHS

Sequenced modules, by discipline

PATH · 018 MODULES

Electrical Foundations

Ohm's law through one-lines, grounding, and ampacity — the vocabulary every later path assumes.

BEGINNER · 3 H 40 MIN
PATH · 025 MODULES

NEC Calculation Practice

Branch circuits, feeders, services, and load calculations, worked as computed results.

INTERMEDIATE · 2 H 50 MIN
PATH · 034 MODULES

Power Systems Analysis

One-lines, fault current, sequence networks, and bus arrangements.

ADVANCED · 2 H 25 MIN
PATH · 044 MODULES

Protection & Relay Coordination

Relay fundamentals, instrument transformers, TCC coordination, and differential schemes.

ADVANCED · 2 H 25 MIN
PATH · 053 MODULES

Arc Flash & Electrical Safety

Incident energy behaviour, boundaries, and equipment rating intuition.

INTERMEDIATE · 1 H 35 MIN
PATH · 064 MODULES

Motors & Transformers

Motor branch circuits, starting behaviour, transformer operation, and vector groups.

INTERMEDIATE · 2 H 5 MIN
FEATURED TOOLS

Hands-on, in the browser

Screenshot of the Arc Flash Concept Simulator interface

Arc Flash Concept Simulator

Explore how voltage, available fault current, working distance, clearing time, equipment configuration, and protection features influence conceptual incident energy and arc-flash boundary behavior.

VIEW TOOL
Screenshot of the Fault Current & Short-Circuit Simulator interface

Fault Current & Short-Circuit Simulator

Model three-phase, SLG, LL, and DLG faults across a four-bus radial system using the per-unit method — with configurable source impedance, transformer, cable, and relay — and a clear statement of what a code-grade study includes that this educational tool does not.

VIEW TOOL
Screenshot of the Breaker Trip Unit Simulator interface

Breaker Trip Unit Simulator

Set LSIG trip unit parameters on a live TCC and see how Long-Time, Short-Time, Instantaneous, and Ground-Fault regions respond to load and fault current — with six presets, five industry-specific Design Lab scenarios, a side-by-side Compare tab, and an Event Simulator.

VIEW TOOL
Screenshot of the Voltage Drop Calculator & Explorer interface

Voltage Drop Calculator & Explorer

Calculate AC voltage drop for single- and three-phase circuits across five voltages and two conductor materials — with live parametric charts (drop vs. length, vs. current, vs. temperature), a copper-vs-aluminum comparison, conductor explorer, six quick presets, and a scenario lab.

VIEW TOOL
Screenshot of the Protective Relay Coordination / TCC Visualizer interface

Protective Relay Coordination / TCC Visualizer

Plot upstream and downstream IEC IDMT relay, breaker, and fuse curves on a live TCC — then verify CTI margin, inject fault current, and step through the trip sequence using six preset coordination scenarios.

VIEW TOOL
Screenshot of the Symmetrical Components & Fault Visualizer interface

Symmetrical Components & Fault Visualizer

Decompose unbalanced three-phase systems into positive, negative, and zero-sequence networks — then drive fault current through them and see every sequence quantity update in real time.

VIEW TOOL
HOW THE LABS TEACH

Orient → Predict → Experiment → Explain → Check → Apply

  1. 01

    Orient

    See the system and what each control actually changes.

  2. 02

    Predict

    Commit to an answer before you touch anything.

  3. 03

    Experiment

    Change one variable and watch the response.

  4. 04

    Explain

    Read the math behind the result, term by term.

  5. 05

    Check

    Answer a short knowledge check on the concept.

  6. 06

    Apply

    Take it into a scenario that looks like real work.

TRUST & TRANSPARENCY

We tell you what has actually been checked

Availability and validation are separate

Being open to the public never implies that a subject-matter expert has reviewed the engineering content.

STATUS DEFINITIONS

Methodology is published

How each tool is checked, which standards editions it references, and when it was last reviewed.

VALIDATION METHODOLOGY

Corrections are logged in public

Engineering corrections are recorded in the changelog so you can audit what changed and when.

READ THE CHANGELOG

Every tool is educational. It does not replace the applicable code edition, manufacturer instructions, or the judgment of a licensed professional.

RECENTLY ADDED & UPDATED

What changed lately

  • NEW2026-08-15

    Accounts, onboarding, dashboard, and a single feedback channel

    Optional three-question onboarding recommends one learning path and one first lab. A new dashboard collects continue-learning, recent labs, bookmarks, synced sessions, and private reports. Feedback now routes by category and returns a reference ID.

  • GOVERNANCE2026-08-15

    Trust Center published

    Validation methodology, status definitions, standards and editions, changelog, accessibility statement, and security and privacy contact are now documented in one place.

  • IMPROVEMENT2026-08-15

    Busway insulation and connection report rebuilt as a guided stepper

    Seven-step workflow, explicit save and sync actions, review-before-export with completeness and advisory checks, and an example-data mode. Acceptance logic was compared against fixtures before and after and is unchanged.

ACCOUNTS ARE OPTIONAL

Labs stay open. An account just remembers things.

You never need to sign in to open a lab. A free account saves module progress, bookmarks, recent tools, and NETA field report drafts you can duplicate and edit later.

Create a free account Keep browsing without one
  • Path progress that survives a refresh
  • Bookmarks for the tools you use weekly
  • Saved and duplicated field reports
  • Export or delete your data any time
PROFESSIONAL DISCLAIMER

For education, training, and preliminary support only. Verify results against applicable codes, standards, manufacturer data, project specifications, AHJ requirements, and qualified engineering judgment.