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1. Which relay is commonly used for the protection of the transmission lines?
- A. Buchholz relay
- B. Buchholz relay
- C. Buchholz relay
- D. Buchholz relay
Answer: Option D
Explanation:
The relay commonly used for the protection of transmission lines is the Distance relay.
Explanation:
Distance relays are designed to detect faults on transmission lines based on the impedance of the fault. They can quickly isolate the faulted section of the line, minimizing damage and preventing further propagation of the fault. This makes them ideal for high-voltage AC transmission lines and distribution lines.
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