Answer / g .senthilkumaran

It is always better to give DC supply to the field then
only we can get continuous output i.e sine wave from the
stator of an alternator.

Answer / hansraj

the dynamical induced emf needs a constant flux i.e time
invarient flux
if we give the ac input it produces alternating flux in the
rotar field and dc current not producec e.m.f. is induced
so the
electrical power will be zero

Answer / veeru

the dynamical induced emf needs a constant flux i.e time
invarient flux
if we give the ac input it produces alternating flux in the
rotar field and then there is no emf is induced so the
electrical power will be zero

what are eddy currents

2 Answers  

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for what voltage will reactive power be largest in 380 kv line : a) 375kv b)380kv c)385kv

0 Answers  

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why we use Test Terminal Block in 11 KV and 33 KV electrical panels.

0 Answers   EMC,

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Can we put 3 layers of cable tray while installing tray

0 Answers   NTPC, Siemens,

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What are the advantages and disadvantages of open loop control system?

0 Answers  

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what is pilot wire protection? wer is it using?

1 Answers  

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How would you supply a single house hold load from a 3-phase supply coming out of a sub-station?

4 Answers  

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why high current produce in case of transformer when turns are internally gets shorted.

3 Answers   TCS,

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what happan when ac power transmitted in unity power factor

12 Answers   JE, Maihar Cement,

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if you are in a software company,then why do you want to come in a core company like sail, ntpc(where lots of trouble like tension but you have a good life in a it company) ?

0 Answers   Sail,

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Dear Sir, we met a disaster with our 62.5 kva genset, after rewinding we informed by our contract engg that due to return current coming in neutral & impropper earthing this happend. But after all set up & load balance we checked & found again we have about 20 to 32 amp return current on neutral. we have 12 airconditioner + 12 mini fridge on single phase line. Pl suggest any idea to solved this problem

3 Answers  

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How many types of Transformer testing..

1 Answers  

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