Answer / prabhakar sankle

Transformer functioning only with a.c supply.Because there is need mutual induction in coil and core.It couldn't happen with DC supply.

Answer / pavan sharma

If dc supply is given to xmer then pri wdg has no recatance so impadance is low due to low resistance so dc supply burn primary

gd eve frndz my qstn is how convert sound energy to electrical energy

1 Answers   HCL,

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How can we calculate the resistance of earthing & how can we control it?

2 Answers  

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Which motor isused in indian railway system?

3 Answers  

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What is ferro-resonance in electrical system? Why it occurs and what are measures to prevent it?

0 Answers  

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if 15 kv is grounding directly what will happen?

5 Answers  

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what is trip circuit supervision relay? How does it work in switchgear?

6 Answers   Radha Regent Hotels,

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diffance between eletrical and eletronics?

3 Answers  

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what happens when dc generator coupled with cycle shaft.also explain what happens when its loaded

0 Answers   NTPC,

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Initially motor starts with star connection ,after few timing changes to delta connection, why the motor should run continously in star connection,it gives high torque & low current?

3 Answers  

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what is meant by tranformer impedance?

0 Answers   Synergy,

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How does the phase sequence controller works, how it identifies the phases? confirm working principle

0 Answers  

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Why the Transformer Nuetral is grounded?

10 Answers   Infosys, Khartoum Refinery,

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