IN CABLE TRENCH WHY FILL UP THE SAND. AND WHAT IS THE DIFFERENCE BETWEEN OVER HEAD AND UNDER GROUND LAYING THE CABLES

2 Answers   Cable Wireless,

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how many kw = one ton air condition?

2 Answers  

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whatis knee point ?

5 Answers   L&T, Siemens,

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What is spill current in protection relays?

1 Answers  

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what is the difference between real and reactive power? and what is the importance of these

3 Answers  

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what are effects of harmonics in the three phase a.c power system ?

2 Answers   AIIMS,

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how to measure the current by compact digital equipment with dislay which fit inside any equipment

0 Answers  

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Capacitor panel CT is normally fixed on Y phase of the main panel.why???

3 Answers  

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in gen traf what is ONAN , ONAF , OFAF and DYN

3 Answers  

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what is direct dischage of power transformer

1 Answers  

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in railways why we use the power in 10,20 30kv,why not in the multiple of 11kv

2 Answers  

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the parts of transformers ?

1 Answers   Bhel, Facility management,

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