identify the components of the tube light and explain how they function???wat is inside the fluroscent tube???how it works???

7 Answers   NTPC, TPL,

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single phase voltage 230 and Three phase voltage 450 why 690 voltage

1 Answers   XYZ,

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Load break swicth maintenance procedure.

0 Answers   KSEB, L&T, Siemens,

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What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side

0 Answers   CEB,

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if the motor rated speed is 950rpm. how to change the above rated speed? is it possible?

0 Answers  

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What is Icu and Ics and what is difference b/w them. please tell me how to calculate a size of a copper bar for a system or a breaker... reply on... king.arish@gmail.com would be waiting for a logical answer.

0 Answers  

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how capacitor buield up the voltage

3 Answers  

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What is a system?

0 Answers  

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How to check the Bushings of the transformer?

0 Answers  

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Getting nusense tripping in a 11KV soft starter, have checked all it control supply & contactors but did not get any fault please help.

3 Answers  

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if the stetor speed (N S) increase by 20% then the rotor speed will be increased by 20% is it true. ?

4 Answers  

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what s the differenc between electrical &electronis , how to define them

9 Answers  

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