Answer / anil rohilla

Since the pf of transformer is dependent on load
We only define VA rating and does not include pf.
Inspite this in motors pf depend on construction and hence
rating of motors is in KWatts and incude pf.

Answer / naveen kumar

Temperature rise depends on losses which in turn depends on voltage and current rating..... so V*I
By the by we don't know the pf of load to express it in KW

Answer / rishabh jadia

Transformer ratings are in kva becoz total
losses in transfomer only depends on voltage
and current but they do not depends on phase
angle between them i.e. power factor (pf).

Answer / jignesh prajapati

because,
N1/N2=I1/I2=V2/V1

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8 Answers   TCS,

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4 Answers   Bhel, IBM,

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3 Answers  

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hello... i am preparing for GET. please send me previous papers..

1 Answers  

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Dear sir, my knowledge about cable size determination is limited. Though I read examples I could not calculate the Cable size required for electric driven pump 40 KW, 380 Volt, 50 HZ, 50 meter from transformer and it is three phase star delta starting. Please help as there is no one in my surroundings to help.

0 Answers  

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0 Answers  

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why we pefer the salient pole for synchronous motor ?

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define as synchronous generator

0 Answers   Enercon,

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