Answer / ram

Differential relay operation depends upon the transformer
rating.
There are some factor to be consider for differential relay
settings.few are as follow.
1)Inrush current of the transformer
2)Load details

earth also having a gravitational force (magnetic field of north and south)but it attracts any object compare to this theartifical magnetic cant perform same as earth why?

0 Answers  

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why 1.7Uo for HV cable Hi pot test?IE standard why?

0 Answers   ABB,

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What is mean by staling?

2 Answers   UPPCL,

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How to test and satisfy the conditions of the vector group YNd1 for power transformer?

1 Answers   Areva,

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why pull the single core cable?

1 Answers  

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what the reson to use phase shift( angle) like (dyn11,Dd5 or Dy0)are usedin power and transsmison line

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What Is HO factor in power selection

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how earth resistance can be improved in dry soil

0 Answers   BARC,

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What are the basic elements used for modeling mechanical rotational system?

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How phase displacement change in the over current relay coils.

0 Answers  

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why the rating of transformer in only KVA not in others?

7 Answers  

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1.what is the funtion of chiller primary & scondary pumps. 2.what is the use of distribution lines & Types. 3.what is the use the thermal power stations & how much capacity.

0 Answers   Wipro,

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