Answer / narayanan

protect to the transformer,
human safety
short circuit for protect the transformer
eb line neutral earthing is not work to support neutral
earth
constant voltage

Answer / balachandra

Neutral grounding and its advantages. ... Neutral grounding provides protection to personal and equipment. It is because during earth fault, the current path is completed through the earthed neutral and the protective devices (e.g. a fuse etc.) operate to isolate the faulty conductor from the rest of the system.

Answer / sonu

to protect transeformer from over voltage during unsymmetrical fault
adv> keep voltage constant of healthy phases

megger generates D.C. voltage while earth tester generates A.C.voltage is it true? I know for megger it is D.C generator but what about earth tester?

4 Answers   IOCL,

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What is ht lt switchgear.

3 Answers   Bhel, HBL Power Systems,

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Wt is the function of reactive power? How it generates & consume though resultant is zero?

0 Answers  

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how to select DG set for certain load?

7 Answers   ACC,

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How will you define capacitance?

0 Answers  

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We have 250 KW x 2 motors, which are load from 25% to 100% varying load in every minute , so how can we compansate the power factor. pl give your opinions on the above subject.

0 Answers  

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How to find synchronous motor speed formula Ns=120f/P ?....

2 Answers   Cranedge,

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types of transformer ?

3 Answers   CG, JLL,

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what is the stear deltaprinceple?

0 Answers  

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Write the analogous electrical elements in force current analogy for the elements of mechanical translational system.

0 Answers  

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how to calculate the size of the HT cable

0 Answers  

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