Transformer कितने प्रकार के होते है? Types of transformer

Summary

This video covers key concepts in electrical engineering, focusing on transformers, electrical motors, power generation, and protection systems. It discusses various transformer designs, including the central limb type, their construction, and magnetic circuits. The script also explores primary and secondary windings, voltage considerations, and the types of materials used in transformer construction. Additionally, it highlights the importance of uniform winding distribution in certain transformer types. The content is aimed at helping viewers understand the technicalities of electrical systems, with references to related video playlists for deeper learning.

Takeaways

• 😀 Complete syllabus videos on Electrical Power, Generation, Switchgear, and Protection are available on the YouTube channel.
• 😀 Playlists for subjects like Electrical Motors, Transformers, and Transmission and Distribution Systems are provided in the video description.
• 😀 To stay updated with new videos, subscribe to the channel and click the notification bell.
• 😀 In the construction of transformers, primary and secondary windings are placed on the central limb of the core.
• 😀 A sandwich-type winding structure is used for transformers, with low voltage and high voltage windings placed accordingly.
• 😀 The transformer construction provides a double magnetic circuit, enhancing its efficiency.
• 😀 Magnetic cores in transformers are made of laminated rectangular and cylindrical winding types.
• 😀 For certain types of transformers, a single magnetic circuit is provided instead of double magnetic circuits.
• 😀 Windings in certain transformers are uniformly distributed and arranged concentrically for better functionality.
• 😀 The working principle of transformers involves generating flux when input is applied, which in turn generates an induced EMF.
• 😀 The transformer design details focus on uniform distribution of windings and positioning low voltage windings near the core.

Q & A

What topics are covered in the YouTube channel videos mentioned in the script?

The channel covers topics such as electric power generation, switchgear protection, electrical motors, transformers, transmission, and distribution systems. It also provides complete syllabus video playlists for each subject.

What is the importance of the 'central limb' in transformer construction?

The central limb plays a crucial role in transformer construction by serving as the point where both primary and secondary windings are placed, ensuring proper functioning and magnetic flux distribution in the transformer.

What is the difference between primary and secondary windings in a transformer?

The primary winding is usually the high-voltage winding, while the secondary winding is the low-voltage winding. These windings are crucial for stepping up or stepping down voltage in the transformer.

What type of magnetic circuit does the transformer described in the script have?

The transformer in the script has a 'double magnetic circuit' design, which helps in providing better magnetic flux flow and enhancing efficiency.

What is meant by 'sandwich-type construction' in transformers?

Sandwich-type construction refers to the design where both the primary and secondary windings are layered together in a compact manner, improving efficiency and ensuring better magnetic coupling between the windings.

How is the construction of a cylindrical winding different from a laminated rectangular core?

A cylindrical winding has a cylindrical shape with windings arranged concentrically, whereas a laminated rectangular core is designed with laminated rectangular sheets stacked together to reduce eddy currents and improve transformer efficiency.

Why is a laminated rectangular core used in transformers?

The laminated rectangular core is used to minimize eddy currents, reduce losses, and improve the transformer's overall efficiency. It is made up of thin layers or laminations of material that are insulated from each other.

What type of distribution is observed in the windings of a core-type transformer?

In a core-type transformer, the windings are uniformly distributed across the central limbs, providing even flux distribution and ensuring efficient performance.

What role does the low-voltage winding play in transformer design?

The low-voltage winding in a transformer is placed near the core and is designed to handle lower voltages. It is arranged concentrically with the high-voltage winding to maintain the balance of the magnetic flux.

How are the windings arranged in the transformer described in the script?

In the transformer, the windings are arranged in a concentric manner, with the low-voltage winding placed close to the core, and both primary and secondary windings distributed across the core's limbs.