what is the significance of KV & MVA rating of the
transformer and how they are related.

Answers were Sorted based on User's Feedback



what is the significance of KV & MVA rating of the transformer and how they are related...

Answer / subra

In power transmission operating voltage are in K V
ie Kilo Volt
The transformers Capacity is in MVA ie Mega Volt Ampere
In power Distribution Network operating Voltage in KV kilo Volt
The transformer Capacity in KVA
Power in 3h = Root3 VxI ---VA
root 3VxI Cosphi----Watts
watts X 1000 =KW VA x 1000 = KVA
Watts x 1000000 = MW KVA X 1000 = MVA

Is This Answer Correct ?    93 Yes 16 No

what is the significance of KV & MVA rating of the transformer and how they are related...

Answer / subra

In the trasformer KV means kilovolt KV is operating voltage
ie 11Kv ,33kv,132kv,230kv,440kv this may be stepup or step
down.But MVA means capacity of the transformer mega volt
ampere.

Is This Answer Correct ?    59 Yes 22 No

what is the significance of KV & MVA rating of the transformer and how they are related...

Answer / kaarthikrt&c

significance of voltage n power,KV*I*1.732=MVA

Is This Answer Correct ?    26 Yes 20 No

what is the significance of KV & MVA rating of the transformer and how they are related...

Answer / kaarthik

if t/f power rating is 1 mva,prim volt=10kv,sec
volt=400v,,,prim current=(1mva/[1.732x10kv])=>57.7367
Amps,sec current=(1mva/[1.732x400])=>1443.4180,,,,,pls
correct it Mr.Eduardo

Is This Answer Correct ?    12 Yes 9 No

what is the significance of KV & MVA rating of the transformer and how they are related...

Answer / sagar singh

The ratings of a transformer is in MVA because due to the
losses i.e. core and iron losses.

Is This Answer Correct ?    31 Yes 29 No

what is the significance of KV & MVA rating of the transformer and how they are related...

Answer / eduardo

kV means kilo Volts, and is 1000 V. So 10kV means 10 000V.
This is the operating voltage. You must have another voltage
in the transformer. One is for the primary, and the other
for the secondary.

MVA means Mega Volt Ampere and is the power of the transformer.
1 MVA = 1 000 000 VA.

For example. If you have a transformer 10kV/400V and with 1
MVA, this means that at full charge is able to delivery in
the secodanry 1 000 000 VA / 400 V = 2 500 A.
He must be connect at a power line 10 kV and will delivery
400 V (till the load of the seconary reach 2 500A, after
that the value of the tension in the secondary begins to
drop, but this is another story).
In the primary the current will be 1 000 000 VA / 10 000 V =
100 A (at full charge).

Is This Answer Correct ?    25 Yes 24 No

what is the significance of KV & MVA rating of the transformer and how they are related...

Answer / deepu

Simply kv is used for
distribution and mva
for transmission
purpose

Is This Answer Correct ?    14 Yes 31 No

what is the significance of KV & MVA rating of the transformer and how they are related...

Answer / c.mahadevan

respected sir,
iam C.Mahadevan electrical engineer,in this
question i have to answer for the transformer mainly MVA
using for High voltage transmission purpose and reduces to
the losses(conductor loss,transmission cost).
KV means it is step down purpose and distribution lines.

Is This Answer Correct ?    10 Yes 50 No

Post New Answer

More Electrical Engineering Interview Questions

what happen when we add mentos in cold drink?& why?

0 Answers  


What is the armature mmf in a D.C machine?

0 Answers   HPCL,


List out the different frequency domain specifications?

0 Answers  


tell me the operation of ELCB. How it detects a fault?

4 Answers  


what is the difference in between short time and continuous rating?

1 Answers  






why the armature coil in dc machine is round?? swagat k.

1 Answers  


plz send me HPCL apptitude paper.. maulik_elect@yahoo.co.in

0 Answers   HPCL,


in telecom we are using neutral?

1 Answers  


can we use ACB for HT supply

2 Answers   Reliance,


Please give me a solid reason there are 2 ELCB's If we take Phase from ELCB NO:1 an Netural from ELCB N:2 why ELCB is tripping when we connect the Load?please brief me with detail

3 Answers  


is it possible to flow a current between nutral and earth in a circuit? although nutral and earth having same potential diffrence? i=0/r=0A if any body now any solid reason because i am getting a triping problem in rcbo due to nutral and earth shorting???

2 Answers  


what will be the breaking capacity of MCCB of 1000kVA (6% Impedence) transformer? Voltage being 415V, Power Factor 0.8.

2 Answers   BPC,


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)