The neutral&earth voltage is 0v.But we were connected the lighting load at the time ballast was failed.why?

1 Answers  

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is any body explain me why return current in three phase power system is less then in a red, yellow, blue phases??? as we know Ir+Iy+Ib=In then why nutral wire has less then phase current????

2 Answers   Bhel, DRIEMS,

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What is the purpose of taking Capacitance and Tan Delta Test in Transformer bushing?

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what is the function of compressor?

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Even when a particular generator in a generating station is under maintenance we are still able to maintain the same power output. How is this possible? Does the tie line between 2 generating stations have a role to play in it?

1 Answers   NTPC,

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what happens when the phase and earth wires comes in contact? and why

2 Answers  

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kindly send me 11KV MV motor differential protection procedure by primary injection method.

0 Answers  

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what is real , reactive and apparani power

1 Answers  

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Where the Dry type tranformers are used.

5 Answers  

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how to calculate differential current when we testing differential relay..suppose we have 1000kw generator,630amp VCB,what value we should put /inject so that relay trip the VCB? PLLZ justify ur comment

0 Answers  

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wat is the need of capacitor on aceiling fan?

5 Answers  

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How can we check ELCB trip current sensitivity How can we check earth resistance value

2 Answers  

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