Answer / aboli desale

Cu loss of t/f depends on current & Iron loss on
voltage.There is no effect of P.F. of load on losses &
i/p,o/p.Therefore t/F rating is in KVA.

Answer / ram

the power factor of a T/F is unknown which depends on load
so its rating is given in KVA.

can we use existing delta star with neutral grounded,step down(6.6kV/415V), 3 phase power transformer bi-directionally.

3 Answers   GMR,

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where this neutral connection goes after returning from the load(home ,factory,industries).Is it grounded at the transformer side or atthe generator side .If it is grounded then we also ground the earth connection.is there any problem with this.

1 Answers   IOCL,

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what is reactive poower

3 Answers  

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what is the range of using dol starter & star delta starter.

10 Answers  

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Why annealing is done on transformer core manufacturing process?

1 Answers   ISRO,

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What is corona ? Mention its positve effects .

1 Answers  

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What is the role of power pack in substation protection system?

0 Answers   Facor,

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Why is a thicker conductor necessary to carry a current in A.C.as compared to D.C. ?

1 Answers  

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How to take vector group test of a transformer? Suppose we dont know the vector group of transformer, how to check its vector group through test? I have 3 transformer DYn11 & DYno& Ynd11, how to confirm its vector group?

1 Answers  

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How can we convert dc to equivalent ac??

4 Answers  

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what will happen if synchronous machine rotor fed from single phase ac supply 

0 Answers  

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what is the meaning of the symbol << >> put in transformer drawing

0 Answers   TATA,

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