MCQOPTIONS
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| 1. |
The phase voltages of a 3 phase source are: van (t) = 100 cos (ωt - 60°), vbn (t) = 100 cos (ωt + 60°), vcn (t) = -100 cos (ωt). This source is |
| A. | balanced and positive sequence |
| B. | unbalanced and positive sequence |
| C. | balanced and negative sequence |
| D. | unbalanced and negative sequence |
| Answer» D. unbalanced and negative sequence | |