What are the various methods for effecive earthing in a factory in a rocky terrain, where soil resistivity is extraordinarily high? The usual method of 3 m deep earth pits is not serving the purpose.

4 Answers  

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Why have the transformer one earthing to their neutral? Why have the transformer many earthing to their body?

1 Answers  

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how we can explain arc heatng?

0 Answers  

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I HAVE A 50A MCCB AS PER DESIGN LINE WIRE CONNECT UPWORD SIDE AND LOAD IS CONNECTED TO DOWNWARD SIDE TO THE MCCB.IF NOW ANY ONE CHANGE SUPPLY & LOAD(WISEVERSA) WHAT HAPPENS ? DOES MCCB OPERATION OR WORKING FUNCTION NORMAL IF YES THAN WHY THERE ARE MARKED LINE & LOAD ON MCCB.

0 Answers   HCL, TCS,

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How can we step up ac and dc ?

1 Answers  

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what is use of stater and choke in tube light.?

2 Answers   Aditya Birla,

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What are the internal and external faults?

0 Answers  

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it is in our knowledge tht right plug of supply of residential suppy system is phase n other is neutral...howevr the battery charger of mobile works in both ways...i mean it is not restricted in only one direction.ny of the holder of charger can hav phase .so y is it not lik tht phase of supply must b connected 2 phase of charger...?

0 Answers   TATA,

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What is the megger value for ht

16 Answers   Electrical,

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How to design CT for connected with Transformer OLTC operation? normally CT output design for 1A/5A range but during OLTC Tap position changing time how to function the CT?

1 Answers   HEG,

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what is the principle of switch gear? where its function ?

9 Answers  

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Is a d.c.compound motor is use as a booster? how?

0 Answers  

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