how work the lighting arrestor?

2 Answers  

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difference b/w eath and neutral

10 Answers   ABB,

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Why human body feel electric shock?

0 Answers  

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In hydel power plants, L.A's, S.C's are placed inside the control panel boards. what is the purpose? [already the total body was earthed to ground.]

0 Answers  

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can we connect PARALLEL 2 D.G set with different rating?? How ? What is the requirement for this connections?

1 Answers   Amoli Organics,

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how we can improove power factor?????????

8 Answers   TATA,

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what is full form of dyn11( in transformer)

5 Answers   Divis Laboratories,

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How many electrones need to flow in one second to equivalent to one Ampere.

3 Answers  

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why Y CONNECTION IS BETTER INTERMS OF EFFICIENCY AND P.F FOR A LAOD LESS THAN 40% AND WHY AFTER DELTA IS BETTER FOR > 40%

0 Answers  

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why do we use bundle conductors instead of using single conductor of larger size for high voltage transmission?

7 Answers  

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We have 11kV/110V three phase indoor potential transformer in 66/11kV Sub-station, where the failure of PT is frequently happening and the rating of the PT is 0.2 class accuracy, with primary star and seconday (two cores) star connected. Some experts has suggested to not to connect the PT Primary neutral to the ground because when transformer neutal NCT connection is loose; the faulty current will flow through the PT primary neutral, resulting into failure of PT. My question is: Is it necessary to remove the primary neutral connection of the PT from ground? if not, what would be the reason for failure of PT. Please guide me.

2 Answers   KPTCL,

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How do you know when the battery is fully charged?

6 Answers   ABB, Pricol,

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