If a fan get trip and run in reverse direction due to system flow. Now in this condition during starting how can a VFD bring this negative speed to zero and later run in forward direction?

2 Answers   Aditya Birla, Siemens,

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What is the basic diffrence between Electronics & Electrical engineering

13 Answers  

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what is the equation of converting KW into HP ?

4 Answers  

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why do we need to use 3c+3e cable, normally i select only 3c+e cable and i think it is enough. pls explain the usefull of 3e cable ( in this project the earthing system is well done)

0 Answers  

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1 hp single phase motor is more likely to get hot thsn inone hp 3 phase motor its true or false? If true why?

3 Answers   Focus, Focus Energy,

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What is the minimum setting in REF relay because i am facing some problem whenever power resumes after power failure my transformer is tripping because of REF trip. I am using CSPC make numerical relay(DIP switches). Now setting is 15 percentage. What is the reason for this triping. I sm waiting for answer

2 Answers  

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While testing a ZCT what parameters have to check or measure?

0 Answers   Indian Railways,

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1.what is the difference between MPCB and MCB ? 2.what is the difference between MPCB and MCCB ?

6 Answers  

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if i am in front of transmission line how to know that current direction without any equipment

0 Answers  

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which fault current is maximum: 3 phase short circuit, LG, LL or LLG?? why?? in one of the problems that i have solved, 3 phase short circuit current on an unloaded generator came out to be less than the LG fault current. can anybody please explain why.

2 Answers   Bhel,

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Is it required to lay GI wires along with GI/MS conduits from one point to another point though separate earthing cable is conncted from DB to Socket?

0 Answers  

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what is the cable capacity of any load wise .

2 Answers  

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