Question

The amp^2-sec rating of the SCR specifies

(a) The power dissipated by the device when fault occurs

(b) The energy dissipated by the device when fault occurs

(c) The energy that the device can absorb before the fault is cleared

(d) The energy that the device can absorb while operating in the forward blocking mode.

I had been asked this question in an interview for job.

My doubt is from Thyristor Ratings topic in section Power Electronics Devices of Power Electronics

Answer 1

Right answer is (c) The energy that the device can absorb before the fault is cleared

Explanation: The amp^2-sec is the energy that the device can handle before the fault is cleared. Its value decides how fast the fault has to be cleared to avoid damage to the device.