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.

details of oil cell size of Breakdown voltage test of tranformer oil details as per Standardswith mushroom electrodes?

0 Answers  

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why breaker closing coil gets burnt if supply is continously provided to it.

1 Answers   TATA,

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what is the different between bus section and bus coupler

2 Answers  

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why we are testing cables with DC supply not with AC supply?

9 Answers   Aurobindo, DEWA, L&T,

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Welding machine

1 Answers   CEL,

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What is meant by IP55 motor.Where it is used?

2 Answers   Zuari,

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what is the difference between HV and LV Breakers?

4 Answers   GM General Motors, OEG,

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what happen if the battery is charged by more than one source ,for ex: connecting data cable to laptop & charger pin to source supply ? 

2 Answers  

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why core of transformer in square or rectangular why not in circle or ellipse if this what happens

2 Answers  

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what is the diffrance between earthing and grounding...?

6 Answers   Essar,

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What is the min.& max distance between two earth spikes is required for measuring earth resistance of an earth pit? Is the manufacturer of Earth tester decides this? Pls explain.

3 Answers   ABB, HAL,

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What are the different pre-commissioning tests that are performed on the distribution transformer, power cable and switchgear (11kv)?

1 Answers   Hitech, Reliance,

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