When a large surge current of very short duration flows through a thyristor then which one of the following device will operate to protect the thyristor ___________?
Correct answer: D. Fast acting current limiting device (FACL fuse)
- A. CB
- B. Snubber circuit
- C. Voltage clamping device
- D. Fast acting current limiting device (FACL fuse)
Explanation
A very large, short-duration surge current is limited by a fast-acting current-limiting fuse, which interrupts the fault before the thyristor reaches its destructive energy limit. A snubber mainly controls voltage transients rather than large current surges.
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