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

What is the technical name of minute currents that i have been produced in moving electrical objects?

2 Answers   ITC Infotech,

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Double Busbar Scheme for outdoor switch yard system (132kv) step up power plant Hi friends 1. in this system both busbars energized all the time. 2. what is the meaning of main BB and transfer BB, 3. step up transformer connect main bus bar all the time or both BB connected through DS switch . 4.bus sectionalization means ? thank you.

1 Answers   ABC, Gael,

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is it possible to say motor horsepower number without seeing name plate(when name plate damaged)

4 Answers  

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How can two 3 phase transformers of same KVA and Voltage be connected in parallel?

1 Answers   Bernhard Schulte Shipmanagement,

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Why does the speed regulating system adopting I controller have no steady-state error? In this single closed-loop speed regulating system, when the input of the I controller Un=0, what is the output voltage of the regulator? What factors do the output voltage depend on?

1 Answers   Sterling Wilson,

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why the earth is taken minimum in supplying? wather it the proportional factor to getting work any equipment or a power plant?

1 Answers  

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why we use ac supply as 415 volts instead of 415 v why we cant apply 230 v for dc

1 Answers  

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When to use Oil Transformer type and When to use Dry type? What is the difference between both?

2 Answers   ABC,

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How to decide CT & PT ratings for a given transmission line carrying some rated voltage?

1 Answers  

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What is farmula to calculate Diesel cunsumption as par KVA.

3 Answers   HCL,

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if voltage is not builed up in small generator what will be the reason?

7 Answers   century,

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what are the analog quality input for protection function?what are minimum reqiments?

1 Answers  

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