An SCR has half cycle surge current rating of 3000 A for 50 Hz supply. One cycle surge current will be_____?
Correct answer: C. 2121.32 A.
- A. 1500 A.
- B. 6000 A.
- C. 2121.32 A.
- D. 4242.64 A.
Explanation
For the same I²t surge-energy limit, doubling the conduction time reduces the allowable current by √2. Therefore the one-cycle value is 3000/√2=2121.32 A.
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