Answer / lnp

IP stands for Ingress Protection . i.e. Protection against Ingress of solid particles and water. The first Digit indicates solid particles up to 1mm can not enter the equipment and second digit indicates that water sprayed from any directon cannot enter the equipment.

why we use copper earthing for neutral while for body GI.

1 Answers   Chennai Metro Rail Limited CMRL, Valeo Lighting Systems India Private Limited,

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what is the different ratings of ACB/VCB/SF6 which is used at HT side

3 Answers   Hosco,

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For a three phase induction motor, what will be the effect on motor if the neutral of the system is shifted to say 20 deg.?

0 Answers  

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What is the work of IGBT in ups?

2 Answers  

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I am abt to give IOCL intrv.Plz sir guide me for IOCL intrvw (Electrical).Which subject to be consider. questions are generally asked from which subject.Plz help me out.

0 Answers   IOCL,

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what is cable meggering formula for low voltage ?

0 Answers  

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where rlc series ckt used?

0 Answers   ABB,

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the voltage per turn of a primary winding of a transformer is the same as the voltage per turn of the secondary winding of the transformer. why?

8 Answers  

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Is phenomenon of resonance is harmfull fr the machine? if not or if yes please explain it?

0 Answers   Bhel,

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A 3 phase motor, 440 voltage, induction motor. If we take out rotor from motor and if we give supply 440 volt to stator then what happens?????

20 Answers  

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Why the capacitor bank is keeping on for electricity supply and keeping it off for generator supply

3 Answers  

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Write down the design procedure of commutaj.

0 Answers  

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