Enroll Course: https://www.udemy.com/course/mastering-electrical-transformer-fundamentals-part-5/
As an electrical engineer who has worked extensively with transformers, I’m always on the lookout for courses that can deepen my understanding of these critical pieces of equipment. The “Mastering Electrical Transformer Fundamentals Part 5” course on Udemy, taught by an instructor with over 21 years of hands-on experience in operation, maintenance, and commissioning, is an absolute gem.
This particular installment, Part 5 of a six-part series focusing on transformer protection, delves into crucial aspects that are often overlooked but are vital for reliable operation. The trainer’s background with Siemens Saudi Arabia and involvement in numerous high-voltage substation projects across Pakistan and Saudi Arabia lends immense credibility to the content. His expertise in protection systems, substation automation, and the testing and commissioning of various high-voltage equipment is evident throughout the course.
Part 5 covers a comprehensive range of topics, starting with essential physical parameters like creepage and clearance distances, and the function of arcing horns. The maintenance of HV bushings and the critical role of the rupture disc are discussed in detail, highlighting their importance in preventing catastrophic failures. A significant portion of the course is dedicated to tap changers, a complex but vital component. The trainer meticulously explains the different types of tap changers, including off-load and on-load variations, delving into their operational sequences, general arrangements, and the “make before break” patent by Dr. Janson. The advantages of vacuum-type OLTCs and the inclusion of tie-in resistors are also explored, providing practical insights into their design and application.
What truly sets this course apart is its practical approach to transformer testing. The course covers a wide array of essential tests, from the Transformer Turn Ratio (TTR) test to open circuit and short circuit tests, impedance tests, and the crucial C and DF (Tan Delta) test. The instructor even provides guidance on how to predict the results of Tan Delta testing, a skill that is invaluable for diagnostics. Furthermore, the Sweep Frequency Response Analysis (SFRA) test and the DC winding resistance test, including the important step of transformer demagnetization, are thoroughly explained. Reviewing a Transformer FAT (Factory Acceptance Test) report is also a key takeaway, offering a real-world perspective on acceptance criteria.
For any electrical professional involved in the power industry, especially those working with transformers, this course is a must-have. It bridges the gap between theoretical knowledge and practical application, equipping you with the insights needed to ensure the longevity and reliability of transformers. The trainer’s ability to explain complex concepts with clarity and depth makes this course highly recommendable.
Enroll Course: https://www.udemy.com/course/mastering-electrical-transformer-fundamentals-part-5/