McqMate
| Q. |
Which of the following statements is incorrect? |
| A. | Station batteries are used to operate relay only |
| B. | The lightning arresters are basically surge diverters |
| C. | An impedance relay has maximum fault current when fault occurs near the relay |
| D. | A high speed relay has an operation of 1 to 2 cycles |
| Answer» A. Station batteries are used to operate relay only | |
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