Substation Fundamentals Sept. 12-13
Intro to Substation Design Sept. 13-14

Live Streaming Online

An EUCI Program

Click Here to register $2195, (each course $1195)

If you are unable to attend at the scheduled date and time, we make recordings available to all registrants for three business days after the event


Substation Fundamentals Sept. 12-13

This course will introduce and provide non-technical people with the basics of a substation and all the general components that are inside a substation. General issues that are involved in the construction, operation and maintenance of substations and switchyards, and detailed safety awareness will be discussed.  It will allow people who are not substation design engineers to know enough to oversee various aspects of a substation and will allow strong oversight of contractors and various substation projects.

Learning Outcomes

  • Review the basics of the power system
  • Explore an in-depth section on substations covering their types and differences
  • Describe the various components and all equipment in substations
  • Review possible causes and solutions to substation faults
  • Explain the various factors in and parts to substation safety
  • Engage in an understanding of basic substation drawings and diagrams
  • List the components and tasks involved with managing a substation project



9:00 a.m. – 5:00 p.m. : CENTRAL TIME

Electricity Basics and the Power Delivery System

Substation Overview

  • High Voltage
  • Transmission Line Entry
  • Power Transformers
  • Distribution Circuit Exits

Substation Site Selection

Substation Equipment

  • HV Arrester
  • HV Breakers
  • Power Transformer (w/ and w/o LTC)
  • LV Bus
  • Distribution Feeder Breakers
  • W/ and w/o Voltage Regulators
  • Ground Grid

Substation Protection & Control

  • Control House Components
    • Alternatives to Control House
  • Supervisory/Automation Equipment & Systems

Substation Safety

  • PPE
  • Do’s & Don’t


9:00 a.m. – 12:00 p.m. : CENTRAL TIME

Substation Drawings

  • 1 Line and 3 Line Schematics
  • Physical Drawings
  • Plan View
  • Elevation

Managing Substation Construction Projects

  • General Process
  • Project Schedule
  • Project Groups and Tasks
    • Project Development
    • Engineering
    • Procurement
    • Construction
    • Testing and Commissioning
    • Asset Management / O&M

Introduction to Substation Design

September 13-14, 2023 | Online

Transmission to distribution substation designs vary in complexity, proportional to their rating (MVA) and application. A variety of engineering disciplines are involved including civil, mechanical, electrical power and communications. Design philosophies are influenced by a utility’s contingency strategy, space limitations, aesthetic requirements, work rules, maintenance practices, and other factors.

This course will provide an overview of design methods with given specifications and a one-line diagram for a typical T to D substation. Discussion concerning substation device options provide attendees with the information to make intelligent choices regarding design features. The class creates a forum for comparing best practices for substation design, maintenance, and the operation of these facilities.

Learning Outcomes   

A comprehensive introduction to the following substation components will be discussed:

  • Review the various types of substations
  • List substation reliability/redundancy considerations
  • Review substation specifications and one-line diagrams
  • Review site selection criteria and components
  • Determine the keys to initial substation layouts  
  • Get an overview on civil engineering considerations including: concrete foundations, steel structures, and liquid containment
  • Review substation components and ratings including: power transformers, voltage regulators, voltage regulating controls, overcurrent protective devices of fuses and circuit breakers, overvoltage protection  
  • List the purposes, uses for and types of protection & control
  • Get introduced to metal enclosed substations
  • Get introduced to modular substations



1:00 – 5:00 p.m. : CENTRAL TIME

Course Overview – Welcome, Introductions & Course Scope

  • Types of Substations
    • Course focus on transmission to distribution open frame bus work substations
  • Substation Reliability/Redundancy Considerations
    • Alternative power source for served load
      • Robustness of distribution feeders
      • Redundancy within the substation
  • Review of Substation Specifications
    • One-line diagram

Site Selection

  • Meets the Estimated Required Area
  • Access to Transmission Line
  • Access to Transportation
    • Roads, railroad, barge, etc.
  • Elevation – Proximity to Flood Plane
  • Proximity to Ocean (Salt Water)
  • Soil Conditions

Initial Substation Layout

  • Determine Entry (Primary) and Exits (Secondary)
    • Handling power line congestion
      • Overhead vs. underground
  • Required Clearances Within Substations
    • Per NESC 2017 Sections 10 -19
  • Space Requirements (Vertical/Horizontal)
    • Substation devices (transformers, breakers, etc.)
    • Operation of heavy lifting equipment

Civil Engineering Considerations

  • Concrete Foundations for Substation Devices
  • Steel Structures Supporting:
    • Bus work
    • Miscellaneous devices (PTs, CTs, Disconnect Switches, Surge Arresters, etc.)
  • Liquid Containment


9:00 a.m. – 5:00 p.m. : CENTRAL TIME

Substation Components and Rating

  • Power Transformer (3) Design Considerations                                             
    • Rating (ONAN, ONAF……)
    • With/without load tap changer
    • Winding configurations
    • Dielectric fluids
  • Voltage Regulators
    • Bus vs. discreet feeder regulation
    • Voltage regulator ratings
  • Voltage Regulating Controls for LTC & VRs
    • Settings & features
  • Overcurrent Protective Devices
    • Fuses
      • Power fuses
      • Current limiting fuses
    • Power circuit breakers
      • Design considerations:
        • Interrupting medium
          • Oil, air, SF6, vacuum
        • Dielectric medium
          • Oil, air, SF6, solid dielectric
        • Driving mechanisms
          • Hydraulic
          • Motor operators
          • Magnetic actuators
        • Maintenance requirements
    • Automatic circuit reclosers
    • Ratings
  • Overvoltage Protection  
    • Coordination of arresters w/equipment insulation ratings
    • Station & heavy-duty class arresters

Protection & Control                                                                                                    

  • Station Power
    • Aux power
      • Station batteries vs. control cabinet batteries
  • Sensors
    • PTs and CTs
  • Metering
    • Protective relay
      • Overcurrent protection (phase & ground)
    • Differential relaying
      • Transformer
      • Substation
  • Remote/Supervisory Control
    • Communication protocols within intelligent devices
    • Gateway computers
  • Control Houses

Intro to Metal Enclosed Substation

  • Where Space is at a Premium
    • No exposed bus work
    • Rack out breakers

Intro to Modular Substations

  • Small KVA Requirements
  • Delivered as a Complete Unit