what main difference betwenn invetter & ups & major difference

2 Answers   ABB,

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what is lightning arester?generaly which type of used in industeries? why its used?

7 Answers   Essar,

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help me with the question that might be ask on the interview for technical position

0 Answers   Eskom,

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how to decide the ratings of the MCCB,MCB in electrification.give me the proper thumb rule or procedure.

0 Answers   ABB,

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How to Calculate the current drain in the battery (1.4V) for the 2mins time period?

7 Answers  

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Application Comparison between 22KV (UE)and 33KV (E) system. Are we allowed to use 33KV (E) cable in lieu of 22KV (UE) cable. What are the technical disadvantages.

0 Answers  

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why should we place 9KV lightning arrestors in 11KV substation ?

9 Answers   DOL, ISRO, Matrix,

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what happen for input voltage output voltage input current output current and kva if we increase primery winding in transformer?

1 Answers  

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we all know voltage is a force(emf), and the force always devides if 2 or more than2 loads are there but why does the voltage remains same is parallel, it must devide na ???

0 Answers   NTPC,

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sir please send me techinical questions for junior engineer posting in bangalore railway i am diploma holder

0 Answers   RRB,

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difference between the earthing,grounding and neutral

1 Answers   DLF, L&T,

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what is submersible pump?what is different between motor and sub motor?

0 Answers  

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