MCQOPTIONS
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| 1. |
With reference to the problem of power system swings for protection of EHV lines |
| A. | mho relay with characteristic angle of 75° is the best choice |
| B. | mho relay with characteristic angle of 60° is the best choice |
| C. | reactance relay is the best choice |
| D. | impedance relay is the best choice |
| Answer» C. reactance relay is the best choice | |