Answer / bala

carbon is a NTC(negative temp coefficient)material. its
resistance decrease while temp gets rise. also carbon gives
wear for give smooth rotation without friction. so its used to
give smooth rotation and less resistance in electricity..!

what is DG synchronization panel plz explain the working!!!!!!!

12 Answers   Kirloskar, Lanco, MPS Techologies, Sedemac,

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What is the difference between earthed and unearthed cable

5 Answers   FT, L&T, Suzlon,

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How the Transformer oil testing is done & Why oil dielectric goes LOW & what is solution for that ??

3 Answers   NTPC,

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what is negative current?

5 Answers   DTG, Siemens,

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wat is the importance of reactive power in power generation.....if it is zero means wat will happen to system........

22 Answers   Bhel, Jindal,

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the power consumption of perminant magnet moving coil?

1 Answers  

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What should be the minimum depth of ground laid 66 kv ht cable?

3 Answers   L&T,

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please explain how to do 'pole drop test' on generator?

0 Answers  

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what is the difference between power and distribution transformer?

32 Answers   L&T, VJTI, Wenke Electricals,

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What is NDR in HT capacitor panels.

2 Answers  

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how do we calculate contactor and fuse rating for a motor if its full load current is known,i want exact calculation for 1.5 kw motor????

1 Answers   Allied Group, Nucon,

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If two hack saw blades, seperated by 1mm thick paper,are connected across 230volts, and immersed in water,then they start getting heat. This is fact,i dont know how they get heated.Blades are not directly connected together. Please if anybody knows the fact ,revert back to me

3 Answers  

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