Electric Drives Practice Test 9

1. Calculate power absorbed by 10 Ω load in 3-∅ 180° VSI if the value of DC supply is 36 V.

2. Switches used in CSI are ____________

3. 1600 V rated 8 SCRs are connected in series. The operation voltage of the string is 4400. Calculate the string efficiency.

4. Full form of TRIAC is __________

5. A solar cell converts light energy into __________

6. Switches used in VSI are ___________

7. Calculate the line voltage in star connection when phase voltage=311 V.

8. What is the formula for output voltage for 3-Φ Full wave bridge rectifier for R-L load?

9. Calculate the r.m.s value of the fundamental component of the output current having an amplitude of 3 A for CSI.

10. Calculate the phase voltage for 3-∅ 120° VSI if the value of DC supply is 78 V.