Sizing Electric Utility Service Entrance Equipment

$79.90

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This course has been discontinued

This 2-hour interactive online course provides practical suggestions for sizing electric utility transformers and service conductors for both residential and commercial customers. The course explains methods to determine the anticipated demand on an electric system based on both residential and commercial loads. From the anticipated demand, methods are discussed for sizing distribution transformers and service entrance equipment. Methods for calculating voltage drop in secondary conductors and for determining fault currents are also shown. The course is based heavily on "rules of thumb" and operating guidelines used by many utilities today.

The purpose of this course is not to explain how to size customer-owned equipment and is not based on the NEC, rather it is directed at the electric utility side of the service entrance.

A test is included at the end of this course to assess your understanding of the course material.

Objectives SME

Course Objectives

This course is designed to acquaint you with methods and procedures to size electric utility service entrance equipment. After taking this course you will know how to:

Estimate demands for single and multiple residential loads
Estimate commercial loads using a variety of methods
Size a distribution transformer based on summer and winter loading
Properly size secondary conductors based on ampacity, voltage drop, and flicker
Determine available fault current at the secondary of a distribution transformer

SUBJECT MATTER EXPERT: Lee Layton, P.E.

Mr. Layton holds a BS in electrical engineering from Auburn University and an MBA. He is a licensed professional engineer in Georgia and North Carolina. He has over 35 years experience in the electric utility industry. His area of expertise includes distribution design, planning, metering, system operations, and relaying.

Mr. Layton has taught numerous training courses for other utility professionals in the areas of metering, relaying, equipment application, and distribution line design and authored over 100 papers on utility operations.