what is difference between vcb and mccb

4 Answers   APTransco,

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What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side

0 Answers   CEB,

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please design a rectifier with batteries for below requirement and also explain how you calculate this solution, Load = 700Amp DC Backup time = 6 hour. please explain briefly ?????

1 Answers   GNFC,

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If the ceiling fan is on slow speed, does it consume less electricity?

2 Answers  

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Why in Hv transmission line as we see there are generally 6 or more than 4 conductor wires are used instead of 4 i.e. 3 for phase and 1 for neutral wire?????

2 Answers  

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difference between moore and mealy model

2 Answers   Google, IBM, TCS,

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what is electrical machines

1 Answers  

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IN A HT CABLES i.e. 1.9/3/3 kv, what is the meaning of 1.9 and 3.3.

1 Answers  

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power requirement of an l.e.d?

2 Answers  

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can we load Power capicitors on DG sets?

14 Answers   Neptune, Nimbus, Westin,

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We are using 3core 11KV HT cable for same phase for generator outgoing, the cable leakage current is high and cable heated overly what is the remidy, if we use the 3core cable for 3phases the problem is solved are not?

1 Answers  

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why we store only dc in batteries ?

1 Answers  

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