which connection is safer series or parallel?usually which connection we prefer at home?

5 Answers  

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How can I calculate the require lumen of a room. If I use Tube Light (40 W), Or 100 W incandescent lamp. Please give detail answer.

1 Answers  

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How we calculate the current carriying capacity of the different sizes of Aluminium busbar ?

3 Answers   ABB, Raj Process Equipments, Visa Steel,

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what is calculation mathod/formaulla for deciding Size of busbar (Copper/ aluminum)for L.T. panel on Various Fault level like 50kA,25kA,10kA

0 Answers   Mega Power,

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which transmission is cheaper ac or dc?

10 Answers  

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an amazing situation was faced when an alive distribution panel with 415 volts and carrying almost 200Amps has become short and this metal cubical showing 220 volts against neutral and earth. to redress any confusion i checked the panel with help of single 200watts test lamp which also glowing with max.intensity b/w neutral & metal body of DB. amazing situation is that i hold the DB firmly more than once with necked foot means without insulated shoes but not received any electrical shock. whereas our all running gen sets neutral points also proper grounded and this short DB was completely earthed , this is beyond my understanding . any body explain how is it possible . our running gen set neutral also grounded firmly

1 Answers  

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HOW TO FIND THE PRIMARY AND SECONDARY OF TRANSFORMER(IN OFF CONDITION) USING MULTIMETER? IS IT POSSIBLE FIND BY SEEING RESISTANCE???

4 Answers   Areva,

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What is the % number of various buses in a typical power system?

2 Answers  

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why the transformer ratings in kva

8 Answers   NTPC,

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what is the cause of voltage dipp or swell in the transmission lines?

0 Answers  

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what is the principal of braker

4 Answers  

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In star delta Schematic can we connect OLR in delta circuit

2 Answers   ABB, Lanco,

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