Electrical 3-Phase Power Transformers Fundamentals (Ohio Timed & Monitored Video)
Credit: 6 PDH
Subject Matter Expert: Graham Van Brunt, P.E.
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.
Specific Knowledge or Skill Obtained
This course teaches the following specific knowledge and skills:
- Electromagnetism
- Voltage and current transformation
- Ratios and polarity
- Potential and Current Transformers
- 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.
| This course is applicable to professional engineers in: | ||
| Alabama (P.E.) | Alaska (P.E.) | Arkansas (P.E.) |
| Delaware (P.E.) | District of Columbia (P.E.) | Florida (P.E. Area of Practice) |
| Georgia (P.E.) | Idaho (P.E.) | Illinois (P.E.) |
| Illinois (S.E.) | Indiana (P.E.) | Iowa (P.E.) |
| Kansas (P.E.) | Kentucky (P.E.) | Louisiana (P.E.) |
| Maine (P.E.) | Maryland (P.E.) | Michigan (P.E.) |
| Minnesota (P.E.) | Mississippi (P.E.) | Missouri (P.E.) |
| Montana (P.E.) | Nebraska (P.E.) | Nevada (P.E.) |
| New Hampshire (P.E.) | New Jersey (P.E.) | New Mexico (P.E.) |
| New York (P.E.) | North Carolina (P.E.) | North Dakota (P.E.) |
| Ohio (P.E. Timed & Monitored) | Oklahoma (P.E.) | Oregon (P.E.) |
| Pennsylvania (P.E.) | South Carolina (P.E.) | South Dakota (P.E.) |
| Tennessee (P.E.) | Texas (P.E.) | Utah (P.E.) |
| Vermont (P.E.) | Virginia (P.E.) | West Virginia (P.E.) |
| Wisconsin (P.E.) | Wyoming (P.E.) | |

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