Answer / ashish mallick

Sion vacuum circuit breaker

In a overhead system why the voltage between line &ground is taken for basic comparison ?and in case of underground cables the comparison take only by the voltage between cables?

1 Answers   L&T,

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is there any current flows in our body?

4 Answers  

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What will happen if the armature resistance is in minimum position and the field resistance is in maximum position while starting the motor

0 Answers   Viva,

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how can we chack a capacitor in acircuit

2 Answers  

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hi, i finished b.tech eee in 2008, im worked in dg sets mfg company , now i left job in 6months back, now again i want get job core side, how can i get? is there any couses we have learn to get better oppurtunity? /

0 Answers  

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Which motor connection is preferable star-delta or delta-star?

0 Answers   IOCL,

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what is meant by vector group of a transformer? How can it be derived?

0 Answers  

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control wiring purpose,standards, ferrule code standard, interlock, schematic, symbol

1 Answers  

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1.what is difference in maintain Hz again Hz in USA ? 2.how to calculate the battery AH? 3.why are yearly maintained in transformer how many tests in required?

0 Answers   Areva, Google,

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why Power transmssion voltages are as 11kV,33kV,66kV,220kV and so on only?

2 Answers  

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A single line diagram(SLD) and a purchase order of a 11/66kV switchyard of a power plant was given. In the SLD, only one lightning arrestor(LA) was shown, but the purchase order had need of 3 LAs. Is this correct, if yes, why?

2 Answers  

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1 KVAR = 1.3Amps but, 25KVAR capacitor/690V capacitor takes just 21Amps as leading current, what is the reason? Please explain...

1 Answers  

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