Answer / prashant

strictly earth resistance must be zero

Answer / shiva

good earthing less than 3 ohms

Answer / ilango

earth resistance value=0 to 10 to 100 to 1000 ohms

What is the make of breakers, transformers, generators? What are their capacities and ratings?

1 Answers  

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how many earthing should give for transformer body and nuetral

5 Answers   GMR, GOMS,

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why two fuses are used in battery charging room?one in positive line and the other in negative line?do any DC system require two fuses?

1 Answers   HPCL,

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How many types of losses occur in a transformer?

0 Answers  

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What is the min and max ohmic value for earthing?

15 Answers   NewTek, Wipro,

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What happened If 3phase supply connected to slip ring side of slipring induction motor ?

2 Answers  

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Any one can explaination about calibration with rotating sub standards?

0 Answers  

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In a power system we know that if the generated power is less than the load then the frequency of the system is decreases.So does this mean that total required load is delivered at alower frequency?

1 Answers  

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For my plant the electricity department charging some amount for t/f losses. May i know what are transformer losses

1 Answers   L&T,

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How to select earthing strip for 100kw induction motor ?

2 Answers  

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why we can turn on the phase-A scr in 3 phase converter at 30 degrees

1 Answers   JSW,

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1. what is the power factor of a purely inductive load? 2. Which type of transformer connection is preferred in case of power supply transformers? 3. In power transformer usually which winding is closer to the core? 4. what will happen to the generated emf if the no. of poles of an alternator is increased?

5 Answers  

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