To detect an over - current fault condition, the most reliable method is to connect a_____________?
Correct answer: C. Current sensor in series with IGBT
- A. Current sensor across IGBT
- B. Voltage sensor across IGBT
- C. Current sensor in series with IGBT
- D. Voltage sensor in series with IGBT
Explanation
A current sensor must be placed in series with the IGBT so that the fault current flows through it and can be measured directly. A voltage sensor across the device detects voltage stress, not over-current itself.
Last updated
Practise Power Electronics
253 free Power Electronics MCQs from Electrical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Electrical Engineering questions like this
Electrical Engineering is on 2 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
60 thyrsistors are connected in series and parallel to form a 10 KV and 5.5 KA switch. Each thyristor is rated for 1.2 KV, 1 KA. The no. of parallel path are 6. The efficiency of the switch is______________________?
A capacitive load in voltage source inverters generates ________________?
A carrier based PWM technique in CSI is composed of____________?
A combination of synchronized leading edge and trailing edge modulation has also been used to control a____________?
A commutating rectifier consists of commutator driven by___________?