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Related Concept Videos

Types Of Transformers01:16

Types Of Transformers

987
Transformers can provide desired voltages to a circuit by modifying the number of turns in the secondary windings.
If the ratio of the number of turns in the secondary winding to that of the primary winding is greater than one, then the transformer is said to be a step-up transformer. In a step-up transformer, the voltage at the secondary winding is greater than the voltage applied at the primary winding.
However, if this ratio is less than one, the transformer is said to be a step-down...
987
Transformers in Distribution System01:27

Transformers in Distribution System

105
Transformers in distribution systems can be broadly categorized into distribution substation transformers and other distribution transformers. They are crucial for stepping down high transmission voltages to levels suitable for distribution and end-user applications.
Distribution substation transformers come in various ratings and typically use mineral oil for insulation and cooling. To prevent moisture and air from entering the oil, some transformers use an inert gas like nitrogen to fill the...
105
Transformers01:26

Transformers

1.1K
A device that transforms voltages from one value to another using induction is called a transformer. A transformer consists of two separate coils, or windings, wrapped around the same soft iron core. However, they are electrically insulated from each other.
The iron core has a substantial relative permeability. Therefore, the magnetic field lines generated due to the current in one winding are almost entirely confined within the core, such that the same magnetic flux permeates each turn of both...
1.1K
Transformers with Off-Nominal Turns Ratios01:25

Transformers with Off-Nominal Turns Ratios

162
In scenarios involving parallel transformers with disparate ratings, developing per-unit models requires accommodating off-nominal turns ratios. This situation arises when the selected base voltages are not proportional to the transformer’s voltage ratings. Consider a transformer where the rated voltages are related by the term a. If the chosen voltage bases satisfy a relationship involving term b, term c is defined as the ratio of these bases. This ratio is then substituted into the...
162
The Ideal Transformer01:26

The Ideal Transformer

407
In single-phase two-winding transformers, two windings are coiled around a magnetic core characterized by cross-sectional area A and magnetic permeability μ. A phasor current i1 enters the left winding while i2 exits the right winding, establishing the fundamental working of the transformer through electromagnetic principles.
Ampere's Law forms the basis of understanding the magnetic field within the transformer. It states that the integral of the magnetic field intensity's...
407
Energy Losses in Transformers01:21

Energy Losses in Transformers

883
In an ideal transformer, it is assumed that there are no energy losses, and, hence, all the power at the primary winding is transferred to the secondary winding. However, in reality,  the transformers always have some energy losses, and, hence, the output power obtained at the secondary winding is less than the input power at the primary winding due to energy losses.
There are four main reasons for energy losses in transformers.
The first cause can be  the high resistance of the...
883

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TransforLearn: Interactive Visual Tutorial for the Transformer Model.

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    TransforLearn is the first interactive visual tutorial for understanding complex Transformer models in deep learning. It helps beginners grasp Transformer concepts through interactive exploration and visualization of model processes.

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    Area of Science:

    • Deep Learning
    • Natural Language Processing
    • Artificial Intelligence

    Background:

    • Transformers are foundational to large language models but are complex for beginners.
    • Understanding Transformer mechanisms is crucial due to their widespread adoption.

    Purpose of the Study:

    • Introduce TransforLearn, an interactive visual tutorial for learning Transformers.
    • Aid deep learning beginners and non-experts in comprehending Transformer architecture and function.

    Main Methods:

    • Developed an interactive tutorial with architecture-driven and task-driven exploration.
    • Provided interactive views of layer operations and mathematical formulas.
    • Enabled exploration of model processes by altering predictions and task abstractions.

    Main Results:

    • User study indicated positive reception of TransforLearn's interactive features.
    • TransforLearn effectively facilitated users' task completion and understanding of Transformer concepts.

    Conclusions:

    • TransforLearn is an effective tool for demystifying Transformers for a broader audience.
    • Interactive visualization enhances learning and comprehension of complex deep learning models.