MCQOPTIONS
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MCQOPTIONS
| 1. |
If all the SCR s of 3 phase PAC is replaced by diodes, they would be triggered_____________? |
| A. | 120 degree after the zero crossing of the corresponding line voltages |
| B. | 60 degree after the zero crossing of the corresponding line voltages |
| C. | 120 degree before the zero crossing of the corresponding line voltages |
| D. | 60 degree before the zero crossing of the corresponding line voltages |
| Answer» C. 120 degree before the zero crossing of the corresponding line voltages | |