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FAQs on Parallel Operation of Transformer - GATE Notes & Videos for Electrical Engineering - Electrical Engineering (EE)

1. What is parallel operation of transformers?
Ans. Parallel operation of transformers refers to connecting multiple transformers together to supply a common load. This is done to increase the overall capacity and reliability of the system.
2. What are the benefits of parallel operation of transformers?
Ans. The benefits of parallel operation of transformers include increased power capacity, improved reliability, flexibility in system design, and easier maintenance.
3. How can transformers be connected in parallel?
Ans. Transformers can be connected in parallel by ensuring that their polarities, voltages, phase angles, and impedance values are matched. Proper synchronization and connection of the transformer windings are crucial for successful parallel operation.
4. What are the key considerations when connecting transformers in parallel?
Ans. When connecting transformers in parallel, key considerations include ensuring that the transformers have the same voltage ratios, ensuring that the impedances are matched, and implementing proper protection schemes to prevent unequal loading and circulating currents.
5. What are the potential risks of parallel operation of transformers?
Ans. Risks of parallel operation of transformers include unequal loading leading to overheating, circulating currents causing voltage fluctuations, and potential damage to the transformers if not properly synchronized or protected. Regular monitoring and maintenance are essential to mitigate these risks.
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