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 acceptable earth resistance for Commissioning the Transformer?

6 Answers   HSL,

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Is there any calculation to find unknwon(unferroled) phases R Y B in alternator,3 phase motor anybody shoot my problem. how can we notice this is the respective phase?

2 Answers  

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which relay is better , instantaneous or IDMT relay .

2 Answers  

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in general it is observed in power stations, the tertiary winding is used in higher rating Y-Y auto transformer but not in Y-Y power transformer. is the tertiary winding is compulsory then why it is not using in power transformer 

0 Answers  

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purpose of breaker contact multiplication relay?

5 Answers   ABB,

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why transformer do not rotate?

3 Answers  

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if a single phase 3 hp submersible pump of Crompton Greaves is moving in reverse direction and sometimes it moves in rigth direction ,then what may be the cause....

2 Answers   Crompton Greaves,

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How dia computation perfomed in cold rolling mills .

0 Answers  

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what is the reasons for blowing fuse

1 Answers  

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circuit breaker work alone during fault condition or need any relays ?

4 Answers  

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cb used in railway applications is?

2 Answers   NTPC,

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