Protection against overvoltage
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Transcript of Protection against overvoltage
MCQ
1) The most severe surge on the line are produced by …………….
2) Arcing ground can be prevented by ………………….
3) For successful working of ground wire the footing resistance of tower should be ………..
4) The …………. Lighting strokes are very rare on the power system.
Answers
1. Lightning
2. Ear thing the neutral
3. Low
4. direct