Power Transformer: How Does It Work and How Is It Built?
In this video, I explain in detail how a power transformer works using 3D visualization. We'll examine the transformer's structure, operating principles, mutual induction, primary and secondary windings, core, losses, eddy currents, oil cooling, and voltage regulation under load.
We'll discuss why a transformer can transmit power over hundreds of kilometers without losing half its power, what happens when DC current is applied to it, why the core is made of thin steel laminations, and why the number of turns inside a transformer can be changed without disconnecting it.
You'll also learn:
how a magnetic circuit works
the difference between a splined core and a solid core
why windings are made of copper
what happens to current and voltage during transformation
types of winding circuits
on-load tap changer (OLTC)
tank, oil, conservator, bushings
This video will be useful for electricians, students, engineers, power engineers, and anyone who wants to understand what's inside a power transformer.
Timestamps:
0:00 — Why a Power Transformer Is Needed
0:49 — The Main Function of a Transformer: Changing Voltage
1:27 — Static Design: Why a Transformer Has No Moving Parts
1:34 — The Law of Electromagnetic Induction (Magnet, Coil, and Magnetic Flux)
1:59 — Direct and Alternating Current, Mutual Induction Between Coils
2:26 — Transformer Construction: Primary and Secondary Windings, Core
3:14 — Fluxes, Losses, and Efficiency, Eddy Currents, and a Splined Core
3:42 — Power Transfer and Transformation Ratio (Turns Ratio)
4:20 — Winding Taps and Output Voltage Regulation
4:38 — Transformer Types: Core and Shell
4:57 — Single-Phase and Three-Phase Transformers, Example with Power Lines and Substations
5:11 — Power Transformer Construction: Core and Layout Windings
5:59 — Low-voltage and high-voltage windings, conductors, STS conductor
7:00 — On-load adjustment (tap changer, OLTC)
7:17 — Tank, transformer oil, conservator, and bushings
8:07 — Personal part: first video, request for opinions and feedback
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Source: • How Power Transformers work ? | Epic 3D An...
If you have any questions, write in the comments, I'll try to help.
On the Energy Trust UZ channel, I explain the operating principles of electrical devices, their design, and operating features.
We discuss electrical safety, installation errors, protective automation, power transformers, and electrical engineering.
My Instagram: @energytrust.uz
#transformer #electrical #3D #energy #powertransformer #electricalengineering