why transformer rating in KVA ?

Answers were Sorted based on User's Feedback



why transformer rating in KVA ?..

Answer / chetanya kumar kumawat

because the losses are (core loss and copper loss )depend on
voltage and current that's mean VI and [ current I is give
by Amp.] so we can say KVA and K is constant which value is
1000volt

Is This Answer Correct ?    30 Yes 11 No

why transformer rating in KVA ?..

Answer / guest

The transformer of total input energy are KVA and output
power are less than input power.The transformer in copper
loss,iron loss and power loss of total energy are equal to
the input energy KVA.The transformer winding turn ratio are
depend as the input and output voltage,and winding coil
diameter are depend as the current.The transformer winding
are depend as the voltage and current.

Is This Answer Correct ?    2 Yes 2 No

why transformer rating in KVA ?..

Answer / surendra

transformer are highly efficient device .around 95 to 98 %
efficiency, they doesn't depend upon power factor .. means
they can supply rated volage and current at any type of
load...so thy are in VA or kva ...... here k means not
constant friends... it is kilo....

Is This Answer Correct ?    7 Yes 9 No

why transformer rating in KVA ?..

Answer / narsing

Transformer efficeincy depends on losses that means core losses are variable losses its depends on load and constant losses are iron losser it wil varying depends on voltage. So tranf design considering depends on both of current and voltage, frequentcy costant.

Is This Answer Correct ?    2 Yes 4 No

why transformer rating in KVA ?..

Answer / kritikajain@gmail.com

due losses in x-mer i.e iron or copper loss

Is This Answer Correct ?    0 Yes 2 No

why transformer rating in KVA ?..

Answer / kapil joshi

because when we use transformer frequency and poewr is
constant from primary to secondary and voltage(=Unit Volt) and
current(=Unit Ampere) are change as per requrement,
So the Rating Of Transformer Are Used In kVA

Is This Answer Correct ?    0 Yes 3 No

why transformer rating in KVA ?..

Answer / narsing

Transformer efficeincy depends on losses that means core losses are variable losses its depends on load and constant losses are iron losser it wil varying depends on voltage. So tranf design considering depends on both of current and voltage, frequentcy costant.

Is This Answer Correct ?    0 Yes 4 No

why transformer rating in KVA ?..

Answer / sunil kumar pandey

Because transformer rating depend on load (resist.,
inductive , capacitive) if transformer feed to resistive
load at unit PF. Then there rating is VX I X1=?
If feed to inductive load for e.g. PF .85 Then there
rating is VX I X.85., that’s why its rated at KVA, where k
is constant i.e. 1000.

Is This Answer Correct ?    6 Yes 12 No

Post New Answer

More Electrical Engineering Interview Questions

Is there any problem if i connect APFC panel in generator circuit

2 Answers  


what is the diffrence between current transformer and voltage trasformer

3 Answers  


What is mean by hormonics?

5 Answers  


XYZ

0 Answers   ASD Lab,


considering the 3phase and single phase ac system the load applied and the volage given is same...will the current differs for both the cases are it wil remain same?

5 Answers  






What is the formula to find out the kvar required to improve the powerfactor from .85 to .99 at 1500kw, 415v.

4 Answers   Trident,


What is LT Breaker Panel?

1 Answers  


If induction motor load is incresed motor speed decrases.But in syncronous motor load incrases speed canstant why?

5 Answers  


what is the use of back emf?

1 Answers  


what is the defination of electrical engineer.

33 Answers  


what is the role of reactive powerin transmission and distribution?

3 Answers  


What are the types of Transformer? Name them.

9 Answers   Bhel, HSL, NTPC,


Categories
  • Civil Engineering Interview Questions Civil Engineering (5084)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16631)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1094)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)