## Design of Electric Power Systems

Course No.: ED101
CEUs 1.6

When It comes to designing an electric power system, the NEC® is just the minimum. This is the first part of a 2 day program to show you how to design and electrical system using the NEC but also how to go beyond the code. When and why do you need to oversize neutrals? How do you perform lighting calculations? Learn some of the “tricks of the trade” when it comes to electrical design. This class is also part of the week long “Power System Engineering” class that is held publicly several times a year.

Jim has developed this course based on 40 years of extensive experience with industrial, commercial and utility power systems and standards development.  He is not just another trainer reading a script.   Jim’s training is based on his insider’s view from being very active with many different standards committees which provides him with the unique perspective, literally from the inside.  Coupled with his broad electrical power background,  he loves sharing his experience and insider’s view with others.  Even instructors from other training companies have attended Jim’s classes to see how it’s done. You will learn power system design as well as conduct a short circuit and coordination study and design harmonic filters.

This class also makes a great Professional Engineering Exam Review!

## CLASS AGENDA

### DAY 1 – POWER SYSTEM DESIGN

INTRODUCTION
Introduction to Electrical Power System Design, Electrical Safety Considerations, Electrical Codes and Standards, Economic Considerations of Design

TYPES OF SYSTEM DESIGNS
Radial Distribution Systems, Networks, Double Ended Substation, Primary Selective Systems, Loop System

VOLTAGE SELECTION
Selecting the Appropriate Voltage, 120/240V, 208Y/120V, 480Y/277V Systems, Medium Voltage Selection, Delta vs. Wye Configurations, Voltage Drop Calculations

General Lighting Load Calculations, Appliance Loads, Receptacles Load Calculations, National Electrical Code Article 220 Requirements, VA per Square ft., Continuous vs. Non-Continuous, Demand Factors, Panel Schedules

CONDUCTORS
Conductor Selection, Conduit Sizing, Insulation Type, Correction Factors, Temperature Considerations, Neutral and Ground Conductors

PANELBOARDS
Panelboard Sizing and Ratings, 80 percent vs. 100 percent ratings, Series Rated vs. Fully Rated Panels.

SWITCHBOARDS
Bus Ratings, Breaker and Fuse Selection, Bus Bracing, AIC, Layout, Series Ratings, Bus Structure, 6 Disconnect Rule

LIGHTING DESIGN
Zonal Cavity Lighting Calculations, Lighting Layout

CASE PROBLEM
Small Industrial Switchboard Circuit Design

### DAY 2 – POWER SYSTEM DESIGN

TRANSFORMERS
Types of Transformers, Dry-Type, Liquid Filled, Cast Coil Designs, Temperation Ratings, Fan Cooling, Insulation Characteristics, Percent Impedance,  K Factor, Transformer Protection Based on NEC® Article 450, Inrush Current, In Class Problems, Sizing and Protecting Transformers

MOTOR CIRCUITS
NEC® Article 430 Requirements, Motor Nameplate Full Load Amps vs. NEC Table’s Full Load Amps, Locked Rotor and Overload Protection, Insulation Class / Service Factor, Motor Tables, Sizing of Feeders, Protection, Motor Short Circuit Protection, In Class Problems – Designing Motor Circuits

GROUNDING
Grounding Electrode System Requirements, Equipment Grounding Conductor Selection, Separately Derived Systems, NEC® Article 250, Solidly Ground and Un-Grounded Systems, High Resistance Grounding, Ground, Ground Loops and Power Quality Issues

HAZARDOUS/CLASSIFIED LOCATIONS
Class I, II, and III, Divisions and Groups, Explosion Proof Equipment, Intrinsically Safe Circuits

LIGHTNING PROTECTION
Concept of Lightning Protection, Air Terminals, Conductors, NFPA 780 Requirements

GENERATORS
Emergency Vs. Standby, Selection of Generator and Prime Mover, Gasoline, Gas (LP/Natural), Diesel Driven, Design Considerations, Generator Loads

AUTOMATIC TRANSFER SWITCHES
Size and Ratings of Transfer Switches, 3 Pole vs. 4 Pole, Protection of the ATS

UNINTERRUPTIBLE POWER SUPPLIES
UPS Types and Operation, Heat Loss, Compatibility with Generators

CASE PROBLEM
Designing a Transformer Circuit for an Industrial Facility