Substation Design Guide
Course Outline
This 15-hour course provides criteria and guidance in the engineering and design of electrical substations. The planning, engineering, design, procurement, construction, and operation of transmission and distribution substations are covered. The topics covered are: major equipment selection, layout, site design, structural design, grounding system design, insulation coordination, protective relaying, substation automation, inspection and testing, as well as maintenance considerations.
The course materials
are based entirely on the design guide developed for the United States Department
of Agriculture: RUS Bulletin 1724E-300 Design Guide for Rural Substations.
This course includes
a multiple-choice quiz at the end, which is designed to enhance the understanding
of the course materials.
Learning Objective
At the conclusion of this course, the student will be familiar with:
- The critical aspects of planning, engineering, design, procurement, construction, and operation of transmission and distribution substations;
- Principles and criteria involved in the proper selection of equipment and material involved in the development of a substation;
- The aspects of the engineering design responsibilities involved in the substation design;
- Development of design consideration for the location of a proposed substation;
- The types of engineering documents required for substations;
- The available industry codes and standards involved in the development of substations;
- The types of distribution substations; 8. The typical bus configuration in substations;
- The protection of substation insulation;
- The steps involved in the evaluation of the switching arrangement for a substation;
- Two of the most critical factors involved in substation design; location and siting;
- The environmental aspects of substation design;
- The aspects involved in equipment layout;
- Safety considerations in substation design;
- Interfacing requirements in substation design;
- Operation considerations in substation design;
- Reliability considerations in substation design;
- Maintenance considerations in substation design;
- The major equipment typically included in substations;
- The types of transformers used in substations;
- The types of breakers used in substations;
- The types of voltage regulators;
- The use of automatic circuit reclosers;
- Coupling capacitors and coupling capacitor voltage transformer;
- The technical aspects involved in the selection of major equipment in subsations;
- Factors evaluated when selecting a site;
- Typical site design requirements;
- The types of structures, materials, and design criteria used for substation design;
- Roads and other access within the substation;
- Typical specification for material and installation of chain link security fence for substations;
- Steps involved with grounding system design;
- Equation used for grounding system design;
- Tolerable touch and step voltages;
- The application and selection of insulated cable and cable raceway for substations;
- The aspects of protective relaying in substations;
- The types of relay schemes used in protective relaying;
- Use of instruments, meters, and transducers for substation monitoring;
- Substation automation considerations;
- The difference between open and proprietary network systems;
- Data acquisition and control elements within substations;
- AC and DC auxiliary systems for substations;
- Control Houses in substations;
- Available communication methods;
- Inspection, testing and considerations for substations; and
- The types of
maintenance programs utilized for substation equipment.
Intended Audience
The course is intended for engineers, project engineers, technicians, and designers with an electrical discipline focus involved in the engineering, design, construction, operation and maintenance of electric substations.
Benefit to Attendees
The course provides an in depth comprehensive discussion of the issues involved
in development of electric substations. After completion the student will be
familiar with all aspects of substation design and with a publication that can
be a valuable resource during the development of preliminary and front-end studies
for substations as well as during detailed design, construction, operation maintenance
and startup/commissioning.
Course Content
The purpose of the course is to provide guidance, criteria, and a reference tool for the design of substations for electric utility transmission and distribution. You are required to study the following design guide developed for the United States Department of Agriculture: RUS Bulletin 1724E-300 Design Guide for Rural Substations (Issued June 2001).
Design Guide for Rural Substations (PDF, 764 pages)
Table of Contents
Chapter 1 - Introduction
Chapter 2 - General Design Considerations
Chapter 3 - Documents
Chapter 4 - Physical Layout
Chapter 5 - Major Equipment
Chapter 6 - Site Design
Chapter 7 - Structures
Chapter 8 - Foundations
Chapter 9 - Grounding
Chapter 10 - Insulated Cables and Raceways
Chapter 11 - Corrosion
Chapter 12 - Protective Relaying
Chapter 13 - Instruments, Transducers and Meters
Chapter 14 - Substation Automation
Chapter 15 - AC and DC Auxiliary Systems
Chapter 16 - Control Houses
Chapter 17 - Communications
Chapter 18 - Inspection
Chapter 19 - Tests
Chapter 20 - Maintenance
Chapter 21 - Up rating and Expanding Existing Substations
You need to open or download this document to study this course.
Course Summary
This course provides design guidance for the increasing number of substations necessary to meet the increasing electrical demands. The engineering function is generally more than furnishing of design and specifications and this function becomes especially important when the user/owner of the substation employs an engineering firm to support the substation development. Use of this design guide will usually result in an economical approach from a system standpoint. Technical advances and changes in codes and standards that could cause some of the material in this course to become obsolete continue to proliferate in the industry and therefore the user needs to continue to stay up to date with the changing technologies.
Related Links
For additional technical information related to this subject, please visit the following websites or web pages:
http://www.ansi.com/
http://www.ieee.com/
http://www.nfpa.com
http://www.nema.com
Quiz
Once you finish studying the above course content, you need to take a quiz to obtain the PDH credits.

DISCLAIMER: The materials contained in the online course are not intended as a representation or warranty on the part of PDH Center or any other person/organization named herein. The materials are for general information only. They are not a substitute for competent professional advice. Application of this information to a specific project should be reviewed by a registered architect and/or professional engineer/surveyor. Anyone making use of the information set forth herein does so at their own risk and assumes any and all resulting liability arising therefrom.
