Answer / mk

In Three phase supply ,phases are 120 deg appart and act as ref against each other .for single phase application, neutral which is commen point of phases is ref.ref is essential.ground pt is for safety where leakage current if any will pass to gnd.

Answer / naresh

ground wire is where you connect diff equipment to control their potential diff at one level.this applicable to only body parts only. like a generator where engine , alternator , radiator connect with a wire to control their potential generating due to rotetion of generating set.
and eath wire is the wire which connect between body to earth point of earth pit to control potential of equipment.
this point also imp. to human and machine safety

we all know that both the generator and motor are electromechanical conversion devices.....then why we rate motor in kw and generator in kva????

4 Answers   KSEB,

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Which cable is use for rtcc control panel

0 Answers  

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0 Answers   ABB,

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what happend if the protection ct is by mistake put instead of measuring ct & vice versa?

2 Answers  

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0 Answers   NCC,

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1 Answers  

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1 Answers  

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What are unstable systems?

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Explain Clearly Pahase and Neutral?

7 Answers  

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2 Answers   DRDO,

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what type of questions are asked and howmwny questions belong this catagory?

0 Answers   RRB,

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how can we avoid magnetostriction in transformer?describe the suitable methods.

3 Answers   Bhel,

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