Answer / purna bahadur pradhan

Emitter follower is also known as buffer amplifier circuit , where the output is simply equal to the input minus a diode drop (about 700 Mv)

What is Automatic interlocking circuit dighram between two contactor for DG SET panel.

1 Answers  

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Explain the operation carried out in thermal power stations?

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In an ammeter used for measurement of current, what is the meaning of the representation of range as '0-50-300'?

4 Answers  

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In synchronization circuit what is the function of Interposing voltage transformer(IVT)and Reverse voltage transformer(RVT)

1 Answers   ABB,

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what is the definition of Nominal current or voltage

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In Dyn11 power transformer if any one of the 3 phases connected to earth in star connected side then please explain effect of the current flow in delta connected side of transformer.(In this case if one phase is shorted to ground in star connected side then we observe the current flow in two phases only not three phases in delta connected primary side. Please explain why it is so?)

1 Answers  

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why we use dc motor instead of ac motor?

7 Answers   Air Force,

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what is meant by tranformer impedance?

1 Answers   Synergy,

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1. What are the tests to be carried out for CBCT? 2. can measure the secondary resistances? 3. with respect to secondary maximum how much voltage can be applied for IR test.

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In electrical locomotive engines, the DC series motors is being used as traction motor. But in new engines like in WAP7 & WAG9 the 3-phase squiral cage induction motors has replaced them. So can someone tell me the advantages of induction motor over dc seris motor in engines points of view....???

1 Answers   RRB,

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What is the function of auadag in a cro?

1 Answers  

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why all selected supply voltage are multiple of 11

1 Answers   Gamesa, Suzlon,

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