Answer / karan kumar goyal

Transformers: It is an electrical equipment used for
stepping up/down the voltage level for transmission as well
as distribution.

Power Factor: The cosine of angle between voltage and
current is known as power factor. If the current lags
behind the voltage then it is called lagging P.F. If the
current leads the voltage then it is called leading P.F.

Machines: Equipments used for electromechinal conversion
are known as machines.

Answer / geetha

Transformer: is a static device it changes voltage (step
down/step up) with out changing any frequency ....

Answer / siva

three phase and single phase .

what efficiency of transformer at 100% load

0 Answers   Emerson,

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Why we use 2core cable for Dc motor.Can I use 3core?

5 Answers   JK Paper, Maharaja Whiteline,

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What is Icu and Ics and what is difference b/w them. please tell me how to calculate a size of a copper bar for a system or a breaker... reply on... king.arish@gmail.com would be waiting for a logical answer.

0 Answers  

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Define the three phase formula fuse.

0 Answers   ABC, Gayatri, UPCL,

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why near the transformers, the Jelly(small white colored rocks)are poured.and what are conditions for that?

3 Answers  

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2 hp motar how many amps taken please show me the formula

4 Answers   Cable Wireless,

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How to increase solar cell efficiency ?

1 Answers  

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can we use heat gun instead of gas torch in 11kv termination kit. I mean can both sources provide enough amount of heat to ensure the uniform shrinkage of sleeve.

1 Answers  

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1.why motor rating in kw instead of KVA? 2.why alternators rating in KVA instead of KW?. 3.why transformer rating in KVA instead of KW?.

6 Answers  

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What is the difference between automatic & semi-automatic star-delta starters?

3 Answers  

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what is smart grid? why we use it? explain in detals bcoz i want give presentatin from it....

0 Answers  

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Does the Impedance of the source affects the THD

1 Answers  

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