This is a live streaming interactive class taught by Jim Phillips, P.E.  You can join in from anywhere on the planet!

Preview the class and Jim’s teaching style with sample videos from the modules:

• Design of Electric Power Systems
• Coordination Studies
• Harmonic Analysis

• 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
• LOAD 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

• 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

• SHORT CIRCUIT ANALYSIS – INTRODUCTION
  Short Circuit Study Requirements, NEC® 110.9 and 110.10, Interrupting and Withstand Ratings, Data Requirements, Available Utility Short Circuit Current, Conductor Impedance, Source Impedance, X/R Ratio, Per Phase Calculations, Thevenin Equivalent, Impedance
• CONDUCTOR IMPEDANCE AND SHORT CIRCUIT CALCULATIONS
  Determining the Source Impedance, Calculating the Conductor Impedance, Conductor Impedance Tables, Conductor Calculation Worksheets.  In Class Problems – Short Circuit Calculations with Conductor Impedance
• TRANSFORMER IMPEDANCE AND SHORT CIRCUIT CALCULATIONS
  Transformer Testing and Percent Impedance, X/R Ratio,  Using Percent Impedance for Short Circuit Calculations,  Determining the Source Impedance in Percent, Infinite Bus Calculations, Transformer Calculation Worksheets.  In Class Problems – Short Circuit Calculations with Transformer Impedance
• MOTOR CONTRIBUTION
  Theory of Motor Short Circuit Contribution, Sub-Transient Reactance, Xd”, Effect of Motor Contribution on Short Circuit Current, Multipliers for Motor Contribution.  In Class Problems – Consideration of Motor Contribution
• DEVICE INTERRUPTING RATINGS
  Circuit Breaker and Fuse Interrupting Ratings, UL and ANSI Testing Methods, Symmetrical and Asymmetrical Short Circuit Current, Effect of X/R Ratio on Interrupting Ratings, Multiplying Factors when the X/R and Asymmetry are Too Large
• SERIES RATINGS
  Development of Series Ratings, Proper Application of Series Ratings, Dynamic Impedance, Fully Rated vs. Series Rated, Current Limitation, Let Thru Current, U.L. Tests
• CASE PROBLEM
  Short Circuit Study of Small Industrial System.  Calculations Include Source, Conductor and Transformer Impedance, Motor Contribution and Protective Device Adequacy Evaluation

• COORDINATION STUDY REQUIREMENTS
  Selective Coordination Basics, Understanding Time Current Curves (TCC), Data Requirements, Device Settings, Graph Scale Selection, Protection vs. Selectivity and Reliability, Compromises in Coordinating Devices in Series
• COORDINATION OF MOLDED CASE CIRCUIT BREAKERS
  Molded Case Circuit Breaker Time Current Curves, Overload Region of TCC, Instantaneous Region, Fixed vs. Adjustable Instantaneous, Determining the Setting of the Instantaneous, Drawing Time Current Curves.  In Class Problem – Drawing Molded Case Circuit Breaker Time Current Curves, Selecting Settings for Optimal Selective Coordination
• COORDINATION OF FUSES
  Time Current Curves of Fuses, Current Limiting vs. Non Current Limiting Fuse Curves, Minimum Melting and Total Clearing Curves, Coordinating Two Sets of Current Limiting Fuses with Selectivity Tables, Coordinating I2T Let-Thru Energy.  In Class Problems – Coordinating Fuses with Each Other and Coordinating Fuses with Circuit Breakers
• SOLID STATE / ELECTRONIC TRIP BREAKERS
  Long Time, Short Time, Instantaneous Settings, I2T Settings, Coordination of Electronic Trip Circuit Breakers, Eliminating Instantaneous for Coordination, NEC® Requirements for High Speed Fault Clearing for Reducing the Hazard From an Arc Flash.
• GROUND FAULT RELAYS
  Residually Connected Ground Fault Schemes, Zero Sequence Ground Fault Relaying, Settings, NEC® Requirements for Ground Fault Protection of Services, Feeders and Equipment, Nuisance Tripping, Setting Ground Fault Devices
• OVERCURRENT RELAYS
  Protective Relay Operation, Amp Tap Setting, Time Dial Operation and Setting, Instantaneous Function, Current Transformers, Necessary Protective Relay Time Margins for Selective Coordination, Setting Selection, Protective Relay Time Current Curves, Curve Shape – Inverse, Very Inverse, Extremely Inverse.  In Class Problems – Setting Overcurrent Relays and Drawing Relay Time Current Curves
• TRANSFORMER PROTECTION
  NEC® Article 450 Requirements, Magnetizing Inrush Current, Using ANSI C57 Thru Fault Curves for Transformer Protection, Adjustments to the Thru Fault Curves Based on Transformer Winding Configurations, Setting Overcurrent Relays for Protecting a Transformer Based on ANSI C57
• CASE PROBLEM
  Coordination Study of Small Industrial Plant, Determining Optimal Device Settings and Drawing Time Current Curves for Multiple Devices in Series.

• POWER FACTOR CORRECTION
  Concept of Power Factor, kW, kVA, kvar and Power Factor, Leading and Lagging Power Factor, Current Flow, Inductive Loads, Power Factor and Vector Analysis
• POWER FACTOR CALCULATIONS
  Determining System Var Requirements, Sizing the Power Factor Correction Capacitor Bank, Determining The Number of Capacitor Switching Steps, Location of the Capacitors.  In Class Problem – Calculating the Size of the Power Factor Correction Capacitor Bank
• UTILITY RATE STRUCTURE
  Types of Utility Rate Structures, Peak Demand Metering, kVA and kW Demand Billing Rates and Power Factor Based Rates, “Creative” Rates after Deregulation.  In Class Problem – Power Factor Economic/Payback Calculations
• HARMONICS
  Concept of Power System Harmonics, Harmonic Frequency Spectrum, Sources of Power System Harmonics, Non-Linear Loads, Harmonic Current Flow, Current Distortion and Harmonics, Graphical/Fourier Analysis of Current Wave Form.  In Class Problem – Calculating the Harmonic Content of an Adjustable Speed Drive
• HARMONIC RELATED PROBLEMS
  Harmonics and Capacitor Failure, Capacitor Fuse Nuisance Interruptions, Equipment Over-Heating, Circuit Breaker Mis-Operation, Metering Errors, Transformer Over-Heating and K-Factor Transformers
• RESONANCE
  Determining Parallel and Series Resonance, Effect of the Equivalent Source Impedance and Resonance, Effect of Capacitor Size, Impact of Resonance on the Power System, Impedance vs. Frequency Scans, Characteristics of Resonance Problems.   In Class Problems – Power System Resonance Calculations
• EVALUATING HARMONICS
  Resonance Calculations, Total Harmonic Distortion (THD) Calculations, Effect of Parallel Resonance on THD, Effect of Source Strength and Load Types.  In Class Problems – Resonance and Total Harmonic Distortion Calculations
• IEEE 519
  Voltage and Current Distortion Limits, Point of Common Coupling, Enforcement, Factoring the Source Strength into the Harmonic Limits, Ratio of Harmonic Current to Load Current
• THIRD HARMONICS
  Switched Mode Power Supplies, 3rd Harmonics and Overloading Neutral Conductors, Oversizing Neutral Conductors, The use of Delta-Wye K-Factor Transformers, Shared Neutrals, Design Requirements to Accommodate Third Harmonic Loads
• CORRECTION OF HARMONIC PROBLEMS
  Power Factor Correction Capacitor Bank Operating Restrictions, Over sizing Neutral Conductors, Harmonic Filter Design, De-tuning Capacitor Banks.  In Class Problem – Designing a 5th Harmonic Filter
• CASE PROBLEM
  Design of a 5th Harmonic Filter Tuned to the 4.7th for an Industrial Plant

Attend This Class to See How To:

• Design electrical power systems more efficiently
• Select and size power system components
• Conduct short circuit studies
• Perform coordination studies and draw time current curves
• Calculate overcurrent device settings
• Evaluate harmonics and design harmonic filters
• Understand power system design and analysis