Live support chatPower Transformers and Per-units (Video on Demand)
Credit: 4 PDH
Subject Matter Expert: Foad Alvandi, P.E.
In Power Transformers and Per-units (Video on Demand) , you'll learn ...
- The operating principles and equivalent circuit modeling of single-phase and three-phase power transformers
- The application of per-unit systems to simplify analysis of transformers and interconnected power systems
- The evaluation of transformer performance using open-circuit tests, short-circuit tests, and equivalent impedance calculations
- How to analyze transformer configurations, autotransformers, and multi-winding transformer systems in balanced power networks
Overview
Preview a portion of the video before you purchase it.
Credit: 4 PDH
This course provides a comprehensive study of power transformers and the use of per-unit systems in electrical power engineering analysis. The course begins with the operating principles of ideal and practical single-phase transformers, including voltage, current, power, impedance, and polarity relationships. Practical transformer modeling is developed through equivalent circuits that account for winding resistance, leakage reactance, core losses, and magnetizing current.
The course explains transformer short-circuit and open-circuit testing methods used to determine equivalent circuit parameters and evaluate transformer performance. A major focus of the course is the use of per-unit quantities to simplify calculations involving transformers, transmission lines, generators, motors, and balanced three-phase systems. Participants learn how to select system bases, convert between different voltage and power bases, and analyze large, interconnected power networks using normalized quantities.
The course also covers three-phase transformer configurations including Y-Y, Δ-Δ, Δ-Y, and Y-Δ connections, along with phase shifts and equivalent circuits. Additional topics include autotransformers, three-winding transformers, and practical engineering examples involving load flow, voltage regulation, power transfer, and system simplification techniques used in modern electrical power systems.
Each topic is immediately followed by well-chosen numerical examples and detailed steps leading to solution of each to further enhance the learning experience of the participants. This course is intended for electrical engineers, as well as design personnel who are interested in learning fundamentals of operations of power transformers.
Specific Knowledge or Skill Obtained
This course teaches the following specific knowledge and skills:
- The fundamentals of operation of ideal as well as real (practical) single-phase two-winding transformers
- How to develop and draw the electrical model of ideal and real single-phase two-winding transformers
- How to calculate transformer copper and core losses
- How to design open circuit and short circuit tests and calculate the internal shunt and series impedances of real (practical) transformers
- Understanding and working with the different configurations of three-phase transformers
- How to apply per-units to analyzing three-phase transformers
- How to read and correctly interpret equipment specs that are often given in terms of per-units
- How to apply the per-unit method to analyzing power systems
- How to convert the nameplate per-unit quantities to a common base in the particular given power network
- How to perform base changes based on the rated voltage of the particular section of the power network
- How to apply per-unit method to analysis of balanced three-phase systems
- How to analyze power networks that contain autotransformers
- How to work with and draw up the equivalent circuit of three-winding transformers
Video on Demand
This course is a recorded version of a live lecture and will be streamed directly to your computer's media player. Our format is generally compatible with media players included with all computers and mobile devices. After watching the video presentation, you will return to your account to take the online quiz. While this is a recording of a live presentation, please note that this recording will not qualify as a "live" or "interactive" continuing education activity in those jurisdictions where it is required.
Certificate of Completion
You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 20 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) |
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| 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. Self-Paced) | Oklahoma (P.E.) | Oregon (P.E.) |
| Pennsylvania (P.E.) | South Carolina (P.E.) | South Dakota (P.E.) |
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| Vermont (P.E.) | Virginia (P.E.) | West Virginia (P.E.) |
| Wisconsin (P.E.) | Wyoming (P.E.) | |
Preview a portion of the video before you purchase it.
Credit: 4 PDH
