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 .

why burdens of VTs is more than CTs?

0 Answers  

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refrigeration cycle?

1 Answers   MAHINDRA, Shapoorji Pallonji Group(SPCL),

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what is lightning arester?generaly which type of used in industeries? why its used?

7 Answers   Essar,

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what is necessity of using isolation transformer?

4 Answers   NTPC,

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what is the use of CAPACITOR in CFL lamp?

6 Answers   Areva, Autopal,

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Hoe do calculate the Cable size for Amps rating ?

0 Answers  

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what is the relationship between current&voltage in practical purpose ?

1 Answers   Indorama,

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why r we using shell transformer for low voltage

0 Answers  

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what is acceptable leakage current for 33kv cable while doing high voltage test for cable? how to calaulate the leakage current for 33kv or any rated cable?

0 Answers  

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Why earthing is required, and what effect in earthing result is more than 5 ohm and less than 5 or equal to 0 ohm

2 Answers  

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why wound rotor is star-connected?

4 Answers  

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why field resistance is higher than armature resistance in dc machines? and why filed resistance is kept at min value at starting in same time of armature resistance at max value?

4 Answers  

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