Electrical 3-Phase Power Transformers Fundamentals (Ohio Timed & Monitored Video)

Course Number: E-6019VTM
Credit: 6 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 (4) 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 Electrical 3-Phase Power Transformers Fundamentals , you'll learn ...

The basic principles of high voltage transformers from a protection and control perspective
Transformer Connections: (Y – Y; Delta - Delta; Y - Delta; Delta - Y and Y - Zag Zig) and Transformer Clock System Vector Nomenclature
Transformer core construction and losses and cooling mitigation techniques

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 336 minutes has been met.

Credit: 6 PDH

Duration: 336 minutes

Electromagnetic forces interact with electrically charged particles and electromagnetic fields. This course will study how these forces lead to voltage and current transformation. Ratios and polarity are explained, leading to the introduction of potential transformers and current transformers, as well as their use in conjunction with the relevant instruments such as ammeters, voltmeters, watt meters and energy meters.

Three-phase transformer configurations are studied, along with harmonic distortion, CT saturation and on-load tap-changer problems, and how these problems are dealt with. Over-current and restraint differential transformer protection is developed along with a look at some examples of "Old School relays" as well as modern IDE (intelligent Electrical Devices) relays, transformer clock system vector nomenclature, oil analysis, and the Buchholz relay.

Learning Objectives

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

Explain the principles of electromagnetism relevant to transformers.
Describe voltage and current transformation in a transformer.
Interpret transformer ratios and polarity.
Distinguish potential transformers from current transformers.
Describe three-phase transformer construction.

Certificate of Completion

You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 24 questions. PDH credits are not awarded until the course is completed and quiz is passed.

Board Acceptance