Power Analysis in AC Circuits (Ohio Timed & Monitored Video)

Course Number: E-4097VTM
Credit: 4 PDH
Subject Matter Expert: Graham Van Brunt, P.E.

Type: Timed and Monitored - designed for Ohio-licensed engineers.

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Overview Board Acceptance Reviews (2) More Details

Overview

This course is specifically designed for Ohio-licensed engineers to qualify as a "timed and monitored" online course. The course contains an automatic timer that prevents the user from accessing the quiz and earning a certificate of completion until the minimum amount of study time has been met. This achieves the Ohio Board's intent that an online course should be "paced" by the provider. For more information, please see the Ohio state requirements. This course may also be accepted in other states (see the "Board Acceptance" tab above).

In Power Analysis in AC Circuits , you'll learn ...

How to work with three-phase power
How to describe how instantaneous and average power in AC circuit can be written in terms of peak current and voltage and of rms current and voltage
Calculate what is required for power factor correction

Overview

To meet the Ohio Board's intent that online courses be "paced" by the provider, a timer will be used to record your study time. You will be unable to access the quiz until the required study time of 215 minutes has been met.

Credit: 4 PDH

Duration: 215 minutes

As a general concept, power describes the speed at which a certain amount of energy is released/transmitted by a system. In any domain, power is therefore expressed as a quantity of energy per unit of time. The international unit for the power is in Joules/second (J/s), which is also known as Watts (W). In electricity, instantaneous power is determined by the product of the voltage and current signals. In this course, we will focus on the power in AC circuits, which is different from DC circuits. Firstly, we discuss how to determine AC power and where its expression comes from. Then we introduce an important concept called the power factor, which is crucial to understanding the power in AC circuits. The power triangle concept is introduced, which is associated with some definitions. Lastly, we examine Power Factor Correction. Before finishing, we carry on to three-phase systems and learn to extrapolate our concepts from single to three-phase circuits.

This course is meant to eliminate the mysticism of electrical power calculation, including real, reactive, and complex power in the analysis of AC circuits. This is accomplished using clear, easy-to-understand, derived formulas, using only algebra and a minimum of trigonometry. The slides are clear and crisp, using sequential animation to gently guide the student through the logic.

Learning Objectives

Upon completion of this course, participants will be able to:

Define power and energy.
Calculate complex power.
Differentiate between real and reactive power.
Determine the relationship among the phase angle of current and voltage, average power, and power factor.

Certificate of Completion

You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 3 questions. PDH credits are not awarded until the course is completed and quiz is passed.

Board Acceptance