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4.3 out of 5
21 reviews on Udemy

Electrical 3 Phase Power Transformers Fundamentals

The basic principles of high voltage transformers, from a protection & control perspective.
Graham Van Brunt P. Eng., B.Sc.
147 students enrolled
English [Auto]
Electromagnetism, Voltage & Current Transformation, Ratios and Polarity, Potential & Current Transformers, 3 Phase Transformers Construction, Transformer Classifications, Losses & Cooling, Per Unit Equivalent Circuits, 3rd Harmonic Currents problems, Tertiary Windings, The Buchholz Relay, Oil Analysis, Transformer Connections: Y – Y, Delta - Delta, Y - Delta, Y - Zig-Zag, Transformer Over-Current Protection, Transformer Differential Protection, Relays old and new

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

Transformer core construction along with losses & cooling mitigation techniques. 3 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 Connections: (Y – Y; Delta – Delta; Y – Delta; Delta – Y & Y – Zag Zig) are examined along with Transformer Clock System Vector Nomenclature.

Oil Analysis and the Buchholz Relay are also studied.

You can view and review the lecture materials indefinitely, like an on-demand channel.
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4.3 out of 5
21 Ratings

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6 hours on-demand video
Certificate of Completion


AulaGEO is a Ge-engineering specialized academy.

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