why we use ac supply as 415 volts instead of 415 v why we cant apply 230 v for dc

0 Answers  

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Make a list observation on Transformer?

0 Answers   HSL,

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In a tap changing transformer where is the tap connected, is it connected in the primary side or secondary side?

0 Answers  

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what is a switchgear. what is its work & where it is used?

5 Answers  

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What is diode fuse ? How it is working?

1 Answers   Hyundai, LG,

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Write a note on RC operational amplifier as integrator

1 Answers  

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How to measure size of cable on a given load

0 Answers   Green India Engineering Solutions,

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In 110V DC supply,if a closed circuit gets open, How can we identify the voltage which is measured after the resistor(4KOhm) which is open with negative.it shows 55V +ve when measured, also the actual positive source is 55V +ve .Because there is no voltage drop in open circuit. How can we identify whether this is the voltage which is series with the resistor or the DC source direct +ve.

1 Answers   GE,

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What is the approximate value of stacking factor?

0 Answers  

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what is the maximum current carrying capacity of a 95 sqmm cupper under ground cable laid partialy in land and partialy in ground?

4 Answers  

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What do you mean by linear and bilateral network?

20 Answers   Automation, Disa, EGCB, Infosys, OPTCL, TICT,

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what is principle of DC machines?

5 Answers   APTransco, NTPC, Wipro,

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