we have one ups its neutral is not earthed.its one distribution MCB has a earth fault.but we can not put off any MCB.so how to find out that in which circuit is earthed without isolating the breaker.

3 Answers   CFCL,

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What is primary distribution and secondary distribution of ac power?

3 Answers  

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difference between a four point starter and three point starter

9 Answers  

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How Id and Ires are calculated in siprotech 7ut612 and abb trsfmr differential relay.what is the formula

1 Answers  

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which surface is suitable for NEUTRAL GROUNDING ?

1 Answers   NTPC,

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What are the specifications for conducting earth leakage test as per IEC standard?

0 Answers  

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Does power factor vary with speed?If yes, how?If not, why?

4 Answers   Genco,

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How can we calculate ngr resistance for a generator and Transformer ? What type of transformer requires ngr ?

5 Answers   Welspun,

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why earth hole size is biggest in plug point?

13 Answers   RRB,

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what is the difference between "ampere trip and ampere frame"

1 Answers  

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The formular of how to calculate a cross sectional cable to feed an electric motor. Examle: 15KW, 26.1A, 415V. Calculate the cable size in mm2

3 Answers   Sona,

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How many type of ht insulator with name

1 Answers   Bhushan Power Steel,

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