1. If we apply dc supply to the primary winding of transformer it will be burnt out. similarly dc supply is given to field winding of syn. motor and armature winding of dc motor, they are safe. (Remember both windings inductive nature) what is the reason behind that?

2 Answers  

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Why the meters sonnected to metering core of CT are not damagedon event of a fault??? Explain the phenomena??

1 Answers   Schneider,

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what is the maximum load sutiable from earth to phase and what is the max voltage earth to phase suitable

1 Answers  

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what are the standard values for resistances(Megger testing) between L&N, L&E and N&E (L=Live,N=Neutral, E=Earth)?

1 Answers   CESU,

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why 3 phase is converted into 2 phase using electronics circuit why not 2 phases are diresctly putted from the 3 phase transformer??

0 Answers   Descon,

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what should be the acceptrd value of winding resistance for 2.5MVA transformer

0 Answers  

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In which type of circuit short circuit is dangerous in parallel or series and why?

6 Answers  

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1.what is the basic difference between surge arrestor and lightning arrestor and where we use it. 1.what is the difference between metal oxide without gapped lightning arrestor and with gapped lightning arrestor

2 Answers  

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how do i convert 22kw to kva

4 Answers   Stag Computers,

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What is the formula that shows relationship between voltage and speed in an induction motor

2 Answers  

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what is means of ALF,kPV(min),lexc(max)at Vk,Rct@75 degree centrigate ohm in current transformer name plate?

2 Answers  

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What is ics,icu,icw of load breaker

5 Answers   Havells, NPCIL,

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