diff between grounding & earthing

8 Answers   BARC, Mobiserv, NTPC, Tata Steel Limited,

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IN star -delta motors normally first operated in star mode {absulated given (r-y-b) phases after one miute change in delta mode in this case i am change phase sequience for example R -PHASE TO CHANGE Y-PHASE ;Y-PHASE TO CHANGE R-PHASE SO THIS TIME MOTOR WILL HAPPEN RUNNIG MODE EIGHTER(OR) STOP MODE(TRIP MODE)

6 Answers   MacLellan,

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What is meant by a linear circuit and what is a non- linear circuit?

5 Answers  

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How to calculate no of EARTH PIT? Describe the formula as per IS standard?

0 Answers  

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Rotor resistance starter is used to obtain= A increased starting torque B decrease starting current C decrease starting loss D increase efficiency

1 Answers  

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For DG or Transformer body earthing, is it necessary to terminate the earth bus to earth pit directly? If not terminated to earth pit directly in earth pit and connected to any common bus strip which ultimately connects to earth pit, what will be the pros and cons?

1 Answers  

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how to calculate the cable current ratingand and how much of distance the rating will be ok will the distance is incresed what the action we take

0 Answers  

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What is mean CT Saturation? How to calculate?

13 Answers   NCC,

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Negative feedback circuit is an implication of ? -Shunt shunt -Shunt series -series series

1 Answers  

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1.difference between sts & ats? 2.what is fm200 system brefly explain?

1 Answers   Ericsson,

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In DC motor,the field MMF is given by NI.N-no.of field winding turns,I-excitation and both are constant.Then how could the main flux decreases due to armature reaction.

4 Answers   Bhel, IBM,

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what is High resistance grounding and whatis the criteria for the selection of High resistance grounding

0 Answers   MAHINDRA,

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