EV Load Characteristics | Mshezi Engineering Academy

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Design EV Charging Infrastructure from Scratch — Without Years of Trial and Error

EV Charging Infrastructure Fundamentals

EV Charging Infrastructure Fundamentals
Welcome — Who This Course Is For
What You'll Learn
How the Course Is Structured
How to Get the Most From It

MODULE 1

EV Fundamentals
Introduction to EV Infrastructure
The EV Ecosystem
EV Charging Levels
Slide 9 — EV Charging Levels Comparison
Key EV Terminology
EV Load Characteristics
Grid Impact Overview
The Future of EV Infrastructure
Quick Check — Module 1
Module 1 — What You've Covered

MODULE 02

IEC Standards Overview
IEC Standards & Compliance
IEC 61851 — Conductive Charging
IEC 62196 — Connectors
Protection Requirements
Earthing Requirements
RCD Requirements — Type B
Safety Considerations
Local Code Considerations
Module 2 — What You've Covered

MODULE 3

AC vs DC Charging
AC Charging Principles
DC Fast Charging Principles
Where the Conversion Lives
Efficiency Comparison
Typical Applications
Advantages & Disadvantages
Commercial Considerations
Infrastructure Requirements
Module 3 — What You've Covered

MODULE 4

EV Charger Sizing
Load Calculations — The Basics
Diversity Factors Explained
Simultaneous Demand
Residential Charging Sizing
Commercial Charging Sizing
Fleet Charging Sizing
Future Expansion Considerations
Worked Example 1 — Residential
Worked Example 2 — Commercial Retail
Future Expansion Considerations

MODULE 5

Transformer Sizing
Transformer Fundamentals
Demand Estimation
Maximum Demand Calculations
Diversity at the Transformer Level
Worked Example — Transformer Selection
Harmonics Considerations
Voltage Drop Considerations
Future Scalability
Module 5 — What You've Covered

MODULE 6

Cable Sizing Fundamentals
Cable Sizing for EV Infrastructure
Current Carrying Capacity
Voltage Drop Calculations
Derating Factors
Installation Methods
Harmonics Impact on Cables
AC Charger Cable Sizing
DC Charger Cable Sizing
Worked Example — 22 kW AC Cable
Module 6 — What You've Covered

MODULE 7

Residential EV Charger Project
Real Project Examples
Shopping Centre Charging Station
Fleet Depot Charging System
Solar + EV Integration
Single Line Diagrams
Load Schedules
Engineering Calculations Summary
Common Design Mistakes
Lessons Learned
Module 7 — What You've Covered
Course Recap
Key Formulas Reference
Bonus Resources
Go build something.

COURSE DOWNLOADS

Slide 22 — RCD Types for EV Charging
Slide 30 — AC vs DC Charging Efficiency
Slide 32 — AC vs DC Trade-Off Matrix
Slide 34 — AC vs DC Infrastructure Requirements
Slide 44 — Residential EV Sizing — Worked Example
Slide 45 — Commercial EV Sizing — Worked Example
Slide 50 — Transformer Max Demand Calculation
Slide 52 — Transformer Specification (1000 kVA, k=4)
Slide 66 — 22 kW AC Cable Sizing Walkthrough
Slide 76 — Top 6 Common EV Design Mistakes
Slide 80 — Key EV Engineering Formulas
Slide 9 — EV Charging Levels Comparison
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EV Load Characteristics

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