The ampÂ²-sec rating of the SCR specifies

Electronics and Communication Engineering (ECE) : Power Electronics - Quiz(MCQ)

The power dissipated by the device when fault occurs

The energy dissipated by the device when fault occurs

The energy that the device can absorb before the fault is cleared

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

Correct Answer : Option (C) : The energy that the device can absorb before the fault is cleared

Explanation : The amp²-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.

Recently Updated in Power Electronics Questions

Static UPS requires ______

only rectifier

only inverter

both inverter and rectifier

None of the above

Correct Answer : both inverter and rectifier

Explanation : Rectifier to converter the dc from the battery to ac. Inverter to charge the battery from mains.

HVDC transmission has ___________ as compared to HVAC transmission.

higher corona loss

smaller transformer size

smaller power transfer capabilities

smaller conductor size

Correct Answer : smaller conductor size

Explanation : The conductor size is smaller as there is no sink effect, and the whole conductor is utilized for transmitting power.

SPMS are based on the ________ principle.

MOSFET

Chopper

Phase control

Integral control

Correct Answer : Chopper

Explanation : SMPS (Switching mode power supply) are based on the chopper principle. The output dc voltage is controlled by varying the duty cycle of the chopper circuit.

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