Answer / moulali

chopper is a type of converter which converts fixed DC to VARIABLE DC.generally dc supply can't be step up or step down because transformer is the only device which is used to step up or step down the voltage/current, but by using choppers we can able to step up and step down the DC voltage/currents

How to choose the vector group for the step up and step down transformers??? Tell me the which vector group is suitable for step up and step down transformers and whats the reason to choose and whats the benefits???

0 Answers   L&T,

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why we measure ouput of transformers in kva.

1 Answers  

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How Humming noise generated in starter motor which was used the start the engine in a vehicle/car/Truck?.Moreover Starter motor was operated in DC power supply. Can you guys clarify ?

2 Answers  

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What is the difference between earthing & neutral.

2 Answers  

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what is the significance of KV & MVA rating of the transformer and how they are related.

8 Answers  

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what is the function of commutator in dc motor?

10 Answers   CTS,

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2 Answers  

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why is using sensor?what is differece between photoelectric and proxmitty?

0 Answers  

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how much flux density of CRNO core

0 Answers  

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What is Neutral Transformer? what is the use of this?

4 Answers  

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In any Industry, Which voltage level either 3.3kV or 6.6KV to be chosen? Then I would like to know ,Is there any cost consideration or Rating of motor?

5 Answers  

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What is on delay and off delay timers

1 Answers   NCC,

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