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Application and Performance of Electrical Distribution Equipment

This unique seminar offers a blend of theoretical and practical information gained by the speaker during his long career in industrial plants and hydro utilities. The objective of the course is to outline the characteristics of the electrical equipment used in the construction of power distribution system, with special emphasis on the application and subsequent performance. Design requirements and ratings, which must be considered at the time of component selection, will also be discussed. A number of “what went wrong” examples will be discussed.

Throughout the course, reference will be made to applicable Canadian and American Standards, e.g. CSA, ANSI, CEA, etc. The operation of some components will be explained using actual samples. You will derive the most benefit when you solve the practical assignments.

Who Should Attend

This seminar is designed for technicians, technologists, and graduate engineers working at different responsibility levels in electric utility departments and engaged in material specification, system planning, design, operation and maintenance.

Instructors

Wallas H. Khella, Ph.D., P.Eng.

Wallas has spent 13 years in industrial plants, followed by 25 years with Ontario electrical utilities. He has a thorough knowledge of overhead and underground distribution systems, distribution substations and protective devices. Over the last 35+ years, Wallas has taught various courses in Power System Engineering as part of the Continuing Educational Program of The University of Toronto for the IEEE, and to several professional development organizations in Canada and abroad. In recognition of his contributions to professional education, the IEEE Toronto Section has named a scholarship in his honour. Wallas is a PEO Member, Fellow of Engineers Canada and a Senior Life Member of IEEE.

Seminar Agenda

The course will run from 8:30 am – 4:30 pm each day, and a bound set of notes will be provided. Refreshments and lunch will be freely available to all attendees. Contact S&C for hotel rate code after registration.

Topics covered in the seminar include:

  • Introduction
    • Basic AC Data
    • The Power System
    • Major Components of Distribution System
  • Distribution Substations
    • Substation Types
    • Substation Schemes
    • Switching Devices
    • Outdoor Substations
    • High Voltage Switchgear
    • Low Voltage Switchgear
    • Station Services
    • Current and Voltage Transformers
    • Substation Transformers
  • Overhead Distribution System
    • Poles
    • Insulators
    • Overhead Conductors
    • Connectors
    • Guying of Poles
    • Clearances
  • Underground Distribution System
    • Installations For Underground Distribution
    • Primary Underground Cables
    • Terminating Of High Voltage Cables
    • Splicing Of High Voltage Cables
    • Effects of Concentric Neutral Currents on Ampacity
    • Secondary Underground Cables
    • Cable Pulling Tensions
    • Faulted Circuit Indicators
  • Distribution Transformers
    • Classification and Types of Distribution Transformers
    • Temperature Rise and Cooling
    • Electrical Characteristics of Transformers (% Impedance, Losses, Efficiency and Short Circuit Withstand
    • Transformer Connections
    • Installation Considerations
  • Underground Residential Distribution
    • Development of URD
    • URD Design Considerations
    • Loading of Components
    • Secondary Cabling Methods
    • Reliability
    • Operational Consideration
  • Examples and Problem-Solving