Transformers - 1 Video Lecture | GATE Notes & Videos for Electrical Engineering - Electrical Engineering (EE)
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FAQs on Transformers - 1 Video Lecture - GATE Notes & Videos for Electrical Engineering - Electrical Engineering (EE)
| 1. What are Transformers and what is their purpose? |  |
Ans. Transformers are electrical devices that transfer electrical energy between two or more circuits through electromagnetic induction. Their purpose is to either increase (step-up) or decrease (step-down) the voltage levels of alternating current (AC) power for efficient transmission and distribution.
| 2. How do Transformers work? | |
Ans. Transformers work on the principle of electromagnetic induction. When an alternating current flows through the primary coil, it creates a changing magnetic field. This changing magnetic field induces a voltage in the secondary coil, allowing the transfer of electrical energy from one circuit to another. The ratio of the number of turns in the primary and secondary coils determines the voltage transformation.
| 3. What are the main components of a Transformer? | |
Ans. The main components of a Transformer include the primary and secondary coils, a core made of laminated steel, and an insulating material to separate the coils and core. The primary coil receives the input voltage, while the secondary coil delivers the output voltage. The core provides a path for the magnetic flux, and the insulating material prevents electrical leakage.
| 4. What are the different types of Transformers? | |
Ans. There are several types of Transformers, including power Transformers, distribution Transformers, auto Transformers, instrument Transformers, and isolation Transformers. Power Transformers are used in power transmission and distribution networks, while distribution Transformers are used to supply power to residential and commercial areas. Auto Transformers have a single winding that acts as both primary and secondary, while instrument Transformers are used for measuring current and voltage. Isolation Transformers provide electrical isolation and protect against electric shock.
| 5. What are the advantages of using Transformers? | |
Ans. Transformers offer various advantages, such as efficient voltage transformation, allowing for long-distance transmission of electricity. They enable the use of different voltage levels for different applications, ensuring compatibility between power sources and devices. Transformers also provide electrical isolation, preventing the transfer of high voltages to low-voltage circuits. Additionally, they are reliable, durable, and have a long operational life with minimal maintenance requirements.
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Nov 22, 2024 Last updated |
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