Answer / sunil

N-E=0volt
P-N=230Volt

Answer / sandhya

S it is crct ..as the earth potential should be zero always

Answer / dipesh

yes.it is good.but for sure check earthing resistance.it should be less then 0.5 ohm.

why we use to always generate power below 16kv.why not at higher voltage?

3 Answers  

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what is the difference between surge arrestor and lightning arrestor ?

6 Answers  

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Why we are using Ohm's law? where it is applicable? explain.

10 Answers   Pyramid Saimira, TCS,

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Why RCD trips on connecting to one Socket but not trips one other circuit on same RCD.

1 Answers  

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why we use single core 630mm2 cable for transformer secondary side

1 Answers  

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to hook up ten 50 amp rv pedastels at a lenth of 600 feet from the service what size will my service need to be and the size of wire will I have to run to each pedastel in series??????

1 Answers  

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Where servomechanism is used?

1 Answers  

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How many speed of dg start motor for engine starting time

1 Answers  

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what are types of ups?

1 Answers  

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Why should we use jelly filled armoured cables in underground Communication system? What is the use of the Jelly? If we go for unarmoured, then what happens?

1 Answers   Prasad Group,

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I am inpecting a 10kVA UPS what tests should i do and should i observe?

1 Answers  

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What is power factof?

21 Answers   RRB,

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